13. Protocols

  Module Protocols.HTTP


Method filename_to_type
Method extension_to_type

string Protocols.HTTP.filename_to_type(string filename)
string Protocols.HTTP.extension_to_type(string extension)

Description

Looks up the file extension in a table to return a suitable MIME type.


Method http_date

string Protocols.HTTP.http_date(int time)

Description

Makes a time notification suitable for the HTTP protocol. @param time The time in seconds since the 00:00:00 UTC, January 1, 1970 @returns The date in the HTTP standard date format. Example : Thu, 03 Aug 2000 05:40:39 GMT


Method http_decode_date

int Protocols.HTTP.http_decode_date(string date)

Description

Decode a HTTP date to seconds since 1970 (UTC) @returns zero (UNDEFINED) if the given string isn't a HTTP date


Method http_decode_string
Method http_decode_urlencoded_query

string Protocols.HTTP.http_decode_string(string what)
mapping(string:string|array(string)) Protocols.HTTP.http_decode_urlencoded_query(string query, void|mapping dest)

Description

Decodes an URL-encoded query into a mapping.


Method do_method

.Query Protocols.HTTP.do_method(string method, string|Standards.URI url, void|mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con, void|string data)

Description

Low level HTTP call method.

Parameter method

The HTTP method to use, e.g. "GET".

Parameter url

The URL to perform method on. Should be a complete URL, including protocol, e.g. "https://pike.ida.liu.se/".

Parameter query_variables

Calls http_encode_query and appends the result to the URL.

Parameter request_headers

The HTTP headers to be added to the request. By default the headers User-agent, Host and, if needed by the url, Authorization will be added, with generated contents. Providing these headers will override the default. Setting the value to 0 will remove that header from the request.

Parameter con

Old connection object.

Parameter data

Data payload to be transmitted in the request.


Method get_url

.Query Protocols.HTTP.get_url(string|Standards.URI url, void|mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Sends a HTTP GET request to the server in the URL and returns the created and initialized Query object. 0 is returned upon failure. If a query object having request_headers->Connection=="Keep-Alive" from a previous request is provided and the already established server connection can be used for the next request, you may gain some performance.


Method put_url

.Query Protocols.HTTP.put_url(string|Standards.URI url, void|string file, void|mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Sends a HTTP PUT request to the server in the URL and returns the created and initialized Query object. 0 is returned upon failure. If a query object having request_headers->Connection=="Keep-Alive" from a previous request is provided and the already established server connection can be used for the next request, you may gain some performance.


Method delete_url

.Query Protocols.HTTP.delete_url(string|Standards.URI url, void|mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Sends a HTTP DELETE request to the server in the URL and returns the created and initialized Query object. 0 is returned upon failure. If a query object having request_headers->Connection=="Keep-Alive" from a previous request is provided and the already established server connection can be used for the next request, you may gain some performance.


Method get_url_nice

array(string) Protocols.HTTP.get_url_nice(string|Standards.URI url, void|mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Returns an array of ({content_type, data}) after calling the requested server for the information. 0 is returned upon failure. Redirects (HTTP 302) are automatically followed.


Method get_url_data

string Protocols.HTTP.get_url_data(string|Standards.URI url, void|mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Returns the returned data after calling the requested server for information through HTTP GET. 0 is returned upon failure. Redirects (HTTP 302) are automatically followed.


Method post_url

.Query Protocols.HTTP.post_url(string|Standards.URI url, mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Similar to get_url , except that query variables is sent as a POST request instead of a GET request.


Method post_url_nice

array(string) Protocols.HTTP.post_url_nice(string|Standards.URI url, mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Similar to get_url_nice , except that query variables is sent as a POST request instead of a GET request.


Method post_url_data

string Protocols.HTTP.post_url_data(string|Standards.URI url, mapping(string:int|string) query_variables, void|mapping(string:string|array(string)) request_headers, void|Protocols.HTTP.Query con)

Description

Similar to get_url_data , except that query variables is sent as a POST request instead of a GET request.


Method unentity

string Protocols.HTTP.unentity(string s)

Description

Helper function for replacing HTML entities with the corresponding iso-8859-1 characters.

Note

All characters aren't replaced, only those with corresponding iso-8859-1 characters.


Method http_encode_query

string Protocols.HTTP.http_encode_query(mapping(string:int|string) variables)

Description

Encodes a query mapping to a string; this protects odd - in http perspective - characters like '&' and '#' and control characters, and packs the result together in a HTTP query string.

Example:

	> Protocols.HTTP.http_encode_query( (["anna":"eva","lilith":"blue"]) );  
     Result: "lilith=blue&anna=eva"
     > Protocols.HTTP.http_encode_query( (["&":"&","'=\"":"\0\0\0"]) );  
     Result: "%26amp%3b=%26&%27%3d%22=%00%00%00"
	


Method http_encode_string

string Protocols.HTTP.http_encode_string(string in)

Description

This protects all odd - see http_encode_query() - characters for transfer in HTTP.

Do not use this function to protect URLs, since it will protect URL characters like '/' and '?'.

Parameter in

The string to encode

Returns

The HTTP encoded string


Method http_encode_cookie

string Protocols.HTTP.http_encode_cookie(string f)

Description

Encode the specified string in as to the HTTP cookie standard.

Parameter f

The string to encode.

Returns

The HTTP cookie encoded string.

  CLASS Protocols.HTTP.HeaderParser

Description

Fast HTTP header parser.

  CLASS Protocols.HTTP.Query

Description

Open and execute an HTTP query.

Example

HTTP.Query o=HTTP.Query();

void ok() { write("ok...\n"); write("%O\n", o->headers); exit(0); }

void fail() { write("fail\n"); exit(0); }

int main() { o->set_callbacks(ok, fail); o->async_request("pike.ida.liu.se", 80, "HEAD / HTTP/1.0"); return -1; }



Variable errno

int errno

Description

Errno copied from the connection.


Variable ok

int ok

Description

Tells if the connection is successfull.


Variable headers

mapping headers

Description

Headers as a mapping. All header names are in lower case, for convinience.


Variable protocol

string protocol

Description

Protocol string, ie "HTTP/1.0".


int status
string status_desc

Description

Status number and description (eg 200 and "ok").


Variable hostname_cache

mapping hostname_cache

Description

Set this to a global mapping if you want to use a cache, prior of calling *request().


Method set_callbacks
Method async_request

Protocols.HTTP.Query set_callbacks(function request_ok, function request_fail, mixed ... extra)
Protocols.HTTP.Query async_request(string server, int port, string query)
Protocols.HTTP.Query async_request(string server, int port, string query, mapping headers, string|void data)

Description

Setup and run an asynchronous request, otherwise similar to thread_request() .

request_ok (Protocols.HTTP.Query httpquery,...extra args) will be called when connection is complete, and headers are parsed.

request_fail (Protocols.HTTP.Query httpquery,...extra args) is called if the connection fails.

Returns

Returns the called object


Method thread_request

Protocols.HTTP.Query thread_request(string server, int port, string query)
Protocols.HTTP.Query thread_request(string server, int port, string query, mapping headers, void|string data)

Description

Create a new query object and begin the query.

The query is executed in a background thread; call `() in the object to wait for the request to complete.

query is the first line sent to the HTTP server; for instance "GET /index.html HTTP/1.1".

headers will be encoded and sent after the first line, and data will be sent after the headers.

Returns

Returns the called object.


Method `()

int `()()

Description

Wait for connection to complete.

Returns

Returns 1 on successfull connection, 0 on failure.


Method data

string data(int|void max_length)

Description

Gives back the data as a string.


Method downloaded_bytes

int downloaded_bytes()

Description

Gives back the number of downloaded bytes.


Method total_bytes

int total_bytes()

Description

Gives back the size of a file if a content-length header is present and parsed at the time of evaluation. Otherwise returns -1.


Method cast

array cast("array")

Returns
Array
mapping 0

Headers

string 1

Data

string 2

Protocol

int 3

Status

string 4

Status description



Method cast

mapping cast("mapping")

Returns

The header mapping ORed with the following mapping.

"protocol" : string

The protocol.

"status" : int

The status code.

"status_desc" : string

The status description.

"data" : string

The returned data.



Method cast

string cast("string")

Description

Gives back the answer as a string.


Method file

Protocols.HTTP.Query.PseudoFile file()
Protocols.HTTP.Query.PseudoFile file(mapping newheaders, void|mapping removeheaders)

Description

Gives back a pseudo-file object, with the methods read() and close(). This could be used to copy the file to disc at a proper tempo.

newheaders , removeheaders is applied as: (oldheaders|newheaders))-removeheaders Make sure all new and remove-header indices are lower case.

See also

datafile()


Method datafile

Protocols.HTTP.Query.PseudoFile datafile()

Description

Gives back a pseudo-file object, with the methods read() and close(). This could be used to copy the file to disc at a proper tempo.

datafile() doesn't give the complete request, just the data.

See also

file()


Method async_fetch

void async_fetch(function callback, mixed ... extra)

Description

Fetch all data in background.

  CLASS Protocols.HTTP.Session



Variable follow_redirects

int follow_redirects

Description

The number of redirects to follow, if any. This is the default to the created Request objects.

A redirect automatically turns into a GET request, and all header, query, post or put information is dropped.

Default is 20 redirects. A negative number will mean infinity.

Bugs

Loops will currently not be detected, only the limit works to stop loops.

See also

Request.follow_redirects


Variable default_headers

mapping default_headers

Description

Default HTTP headers.


Method set_http_cookie

void set_http_cookie(string cookie, Standards.URI at)

Description

Parse and set a cookie received in the HTTP protocol. The cookie will be checked against current security levels et al.


Method set_cookie

void set_cookie(Cookie cookie, Standards.URI who)

Description

Set a cookie. The cookie will be checked against current security levels et al, using the parameter who . If who is zero, no security checks will be performed.


Method encode_cookies
Method decode_cookies

string encode_cookies()
void decode_cookies(string data, void no_clear)

Description

Dump all cookies to a string and read them back. This is useful to store cookies in between sessions (on disk, for instance). decode_cookies will throw an error upon parse failures. Also note, decode_cookies will clear out any previously learned cookies from the Session object, unless no_clear is given and true.


Method get_cookies

array(string) get_cookies(Standards.URI|SessionURL for_url, void|int(0..1) no_delete)

Description

Get the cookies that we should send to this server, for this url. They are presented in the form suitable for HTTP headers (as an array). This will also take in count expiration of cookies, and delete expired cookies from the Session unless no_delete is true.


Variable hostname_cache

mapping hostname_cache

Description

Cache of hostname to IP lookups. Given to and used by the Query objects.


Variable time_to_keep_unused_connections

int|float time_to_keep_unused_connections

Description

The time to keep unused connections in seconds. Set to zero to never save any kept-alive connections. (Might be good in a for instance totaly synchroneous script that keeps the backend thread busy and never will get call_outs.) Defaults to 10 seconds.


Variable maximum_connections_per_server

int maximum_connections_per_server

Description

Maximum number of connections to the same server. Used only by async requests. Defaults to 10 connections.


Variable maximum_total_connections

int maximum_total_connections

Description

Maximum total number of connections. Limits only async requests, and the number of kept-alive connections (live connections + kept-alive connections <= this number) Defaults to 50 connections.


Variable maximum_connection_reuse

int maximum_connection_reuse

Description

Maximum times a connection is reused. Defaults to 1000000. <2 means no reuse at all.


Method give_me_connection

Query give_me_connection(Standards.URI url)

Description

Request a Query object suitable to use for the given URL. This may be a reused object from a keep-alive connection.


Method return_connection

void return_connection(Standards.URI url, Query query)

Description

Return a previously used Query object to the keep-alive storage. This function will determine if the given object is suitable to keep or not by checking status and headers.


Method get_url
Method post_url
Method put_url
Method delete_url

Request get_url(URL url, void|mapping query_variables)
Request post_url(URL url, mapping query_variables)
Request put_url(URL url, string file, void|mapping query_variables)
Request delete_url(URL url, void|mapping query_variables)

Description

Sends a HTTP GET, POST, PUT or DELETE request to the server in the URL and returns the created and initialized Request object. 0 is returned upon failure.


Method get_url_nice
Method get_url_data
Method post_url_nice
Method post_url_data

array(string) get_url_nice(URL url, mapping query_variables)
string get_url_data(URL url, mapping query_variables)
array(string) post_url_nice(URL url, mapping query_variables)
string post_url_data(URL url, mapping query_variables)

Description

Returns an array of ({content_type,data}) and just the data string respective, after calling the requested server for the information. 0 is returned upon failure.

post* is similar to the get_url() class of functions, except that the query variables is sent as a POST request instead of as a GET.


Method async_get_url
Method async_put_url
Method async_delete_url
Method async_post_url

Request async_get_url(URL url, void|mapping query_variables, function callback_headers_ok, function callback_data_ok, function callback_fail, mixed ... callback_arguments)
Request async_put_url(URL url, void|string file, void|mapping query_variables, function callback_headers_ok, function callback_data_ok, function callback_fail, mixed ... callback_arguments)
Request async_delete_url(URL url, void|mapping query_variables, function callback_headers_ok, function callback_data_ok, function callback_fail, mixed ... callback_arguments)
Request async_post_url(URL url, mapping query_variables, function callback_headers_ok, function callback_data_ok, function callback_fail, mixed ... callback_arguments)

Description

Sends a HTTP GET, POST, PUT or DELETE request to the server in the URL asynchroneously, and call the corresponding callbacks when result arrives (or not). The callbacks will receive the created Request object as first argument, then the given callback_arguments , if any.

callback_headers_ok is called when the HTTP request has received headers.

callback_data_ok is called when the HTTP request has been received completely, data and all.

callback_fail is called when the HTTP request has failed, on a TCP/IP or DNS level, or has received a forced timeout.

The created Request object is returned.

  CLASS Protocols.HTTP.Session.Request

Description

Request


Variable con

Query con

Description

Raw connection object


Variable url_requested

Standards.URI url_requested

Description

URL requested (set by prepare_method). This will update according to followed redirects.


Variable follow_redirects

int follow_redirects

Description

Number of redirects to follow; the request will perform another request if the HTTP answer is a 3xx redirect. Default from the parent Session.follow_redirects .

A redirect automatically turns into a GET request, and all header, query, post or put information is dropped.

Bugs

Loops will currently not be detected, only the limit works to stop loops.


Variable cookie_encountered

function(string:mixed) cookie_encountered

Description

Cookie callback. When a request is performed, the result is checked for cookie changes and additions. If a cookie is encountered, this function is called. Default is to call set_http_cookie in the Session object.


Method prepare_method

array(string|int|mapping) prepare_method(string method, URL url, void|mapping query_variables, void|mapping extra_headers, void|string data)

Description

Prepares the HTTP Query object for the connection, and returns the parameters to use with do_sync , do_async or do_thread .

This method will also use cookie information from the parent Session , and may reuse connections (keep-alive).


Method do_sync

Request do_sync(array(string|int|mapping) args)

Description

Perform a request synchronously. Get arguments from prepare_method .

Returns

0 upon failure, this object upon success

See also

prepare_method , do_async , do_thread


Method do_thread

Request do_thread(array(string|int|mapping) args)

Description

Start a request in the background, using a thread. Call wait to wait for the thread to finish. Get arguments from prepare_method .

Returns

The called object.

See also

prepare_method , do_sync , do_async , wait

Note

do_thread does not rerun redirections automatically


Method wait

Request wait()

Description

Wait for the request thread to finish.

Returns

0 upon failure, or the called object upon success.

See also

do_thread


Method set_callbacks

void set_callbacks(function(mixed ... :mixed) headers, function(mixed ... :mixed) data, function(mixed ... :mixed) fail, mixed ... callback_arguments)

Description

Setup callbacks for async mode, headers will be called when the request got connected, and got data headers; data will be called when the request got the amount of data it's supposed to get and fail is called whenever the request failed.

Note here that an error message from the server isn't considered a failure, only a failed TCP connection.


Method do_async

Request do_async(array(string|int|mapping) args)

Description

Start a request asyncroneously. It will perform in the background using callbacks (make sure the backend thread is free). Call set_callbacks to setup the callbacks. Get arguments from prepare_method .

Returns

The called object.

See also

set_callbacks , prepare_method , do_sync , do_thread


Method destroy

void destroy()

Description

destroy is called when an object is destructed. But since this clears the HTTP connection from the Request object, it can also be used to reuse a Request object.

  CLASS Protocols.HTTP.Session.SessionURL

Description

Class to store URL+referer


Inherit URI

inherit Standards.URI : URI


Variable referer

URL referer

Description

the referer to this URL


Method create

void Protocols.HTTP.Session.SessionURL(URL uri, URL base_uri, URL _referer)

Description

instantiate a SessionURL object; when fed to Protocols.HTTP.Session calls, will add referer to the HTTP handshaking variables

  Module Protocols.HTTP.Server

  CLASS Protocols.HTTP.Server.Port

Description

The simplest server possible. Binds a port and calls a callback with Server.Request objects.


Method create

void Protocols.HTTP.Server.Port(function(.Request:void) callback)
void Protocols.HTTP.Server.Port(function(.Request:void) callback, int portno, void|string interface)


Method close

void close()

Description

Closes the HTTP port.

  CLASS Protocols.HTTP.Server.Request


Variable raw

string raw

Description

raw unparsed full request (headers and body)


Variable body_raw

string body_raw

Description

raw unparsed body of the request (raw minus request line and headers)


Variable request_raw

string request_raw

Description

full request line (request_type + full_query + protocol )


Variable request_type

string request_type

Description

HTTP request method, eg. POST, GET, etc.


Variable full_query

string full_query

Description

full resource requested, including attached GET query


Variable not_query

string not_query

Description

resource requested minus any attached query


Variable query

string query

Description

query portion of requested resource, starting after the first "?"


Variable protocol

string protocol

Description

request protocol and version, eg. HTTP/1.0


Variable request_headers

mapping(string:string|array(string)) request_headers

Description

all headers included as part of the HTTP request, ie content-type.


Variable variables

mapping(string:string|array(string)) variables

Description

all variables included as part of a GET or POST request.


Variable cookies

mapping(string:string) cookies

Description

cookies set by client


Variable misc

mapping misc

Description

external use only


Variable send_timeout_delay

int send_timeout_delay

Description

send timeout (no activity for this period with data in send buffer) in seconds, default is 180


Variable connection_timeout_delay

int connection_timeout_delay

Description

connection timeout, delay until connection is closed while waiting for the correct headers:


Method response_and_finish

void response_and_finish(mapping m, function|void _log_cb)

Description

return a properly formatted response to the HTTP client

Parameter m

Contains elements for generating a response to the client.

"data" : string

Data to be returned to the client.

"file" : object

File object, the contents of which will be returned to the client.

"error" : int

HTTP error code

"length" : int

length of content returned. If file is provided, size bytes will be returned to client.

"modified" : string

contains optional modification date.

"type" : string

contains optional content-type

"extra_heads" : mapping

contains a mapping of additional headers to be returned to client.

"server" : string

contains the server identification header.


  CLASS Protocols.HTTP.Server.SSLPort

Description

The simplest SSL server possible. Binds a port and calls a callback with Request objects.



Method create

void Protocols.HTTP.Server.SSLPort(function(Request:void) _callback, void|int _portno, void|string _interface, void|string key, void|string|array certificate)

Description

Create a HTTPS (HTTP over SSL) server.

Parameter _callback

The function run when a request is received. takes one argument of type Request .

Parameter _portno

The port number to bind to, defaults to 443.

Parameter _interface

The interface address to bind to.

Parameter key

An optional SSL secret key, provided in binary format, such as that created by Standards.PKCS.RSA.private_key() .

Parameter certificate

An optional SSL certificate or chain of certificates with the host certificate first, provided in binary format.


Method close

void close()

Description

Closes the HTTP port.


Method new_connection

void new_connection()

Description

The port accept callback

  CLASS Protocols.HTTP.Server.SSLPort.MySSLPort



Inherit sslport

inherit SSL.sslport : sslport


Method set_default_keycert

void set_default_keycert()


Method set_key

void set_key(string skey)


Method set_certificate

void set_certificate(string|array certificate)

  Module SSL

  CLASS SSL.alert

Description

Alert package.



Inherit packet

inherit .packet : packet


Method create

void SSL.alert(int level, int description, int version, string|void message, mixed|void trace)

  CLASS SSL.connection

Description

SSL packet layer. SSL.connection inherits SSL.handshake, and in addition to the state in the handshake super class, it contains the current read and write states, packet queues. This object is responsible for receiving and sending packets, processing handshake packets, and providing a clear text packages for some application.



Inherit handshake

inherit .handshake : handshake


Inherit alert

inherit ADT.Queue : alert


Inherit urgent

inherit ADT.Queue : urgent


Inherit application

inherit ADT.Queue : application


Method set_alert_callback

void set_alert_callback(function(object:void) callback)

Description

Called with alert object, sequence number of bad packet, and raw data as arguments, if a bad packet is received.

Can be used to support a fallback redirect https->http.


Method recv_packet

object recv_packet(string data)

Description

Low-level receive handler. Returns a packet, an alert, or zero if more data is needed to get a complete packet.


Method send_packet

void send_packet(object packet, int|void priority)

Description

Queues a packet for write. Handshake and and change cipher must use the same priority, so must application data and close_notifies.


Method to_write

string|int to_write()

Description

Extracts data from the packet queues. Returns a string of data to be written, "" if there are no pending packets, 1 of the connection is being closed politely, and -1 if the connection died unexpectedly.

This function is intended to be called from an i/o write callback.


Method send_close

void send_close()

Description

Initiate close.


Method send_streaming_data

int send_streaming_data(string data)

Description

Send an application data packet. If the data block is too large then as much as possible of the beginning of it is sent. The size of the sent data is returned.


Method got_data

string|int got_data(string|int s)

Description

Main receive handler. Returns a string of received application data, or 1 if a close was received, or -1 if an error occured.

This function is intended to be called from an i/o read callback.

  CLASS SSL.context

Description

Keeps the state that is shared by all SSL-connections for one server (or one port). It includes policy configuration, a server certificate, the server's private key(s), etc. It also includes the session cache.



Variable rsa

Crypto.RSA rsa

Description

The server's private key


Variable auth_level

int auth_level

Description

Policy for client authentication. One of SSL.Constants.AUTHLEVEL_none , SSL.Constants.AUTHLEVEL_ask and SSL.Constants.AUTHLEVEL_require .


Method set_authorities

void set_authorities(array(string) a)

Description

Array of authorities that are accepted for client certificates. The server will only accept connections from clients whose certificate is signed by one of these authorities. The string is a DER-encoded certificate, which typically must be decoded using MIME.decode_base64 or Tools.PEM.Msg first.

Note that it is presumed that the issuer will also be trusted by the server. See trusted_issuers for details on specifying trusted issuers.

If empty, the server will accept any client certificate whose issuer is trusted by the server.


Variable require_trust

int require_trust

Description

When set, require the chain to be known, even if the root is self signed.

Note that if set, and certificates are set to be verified, trusted issuers must be provided, or no connections will be accepted.


Method get_authorities

array(string) get_authorities()

Description

Get the list of allowed authorities. See set_authorities .


Method set_trusted_issuers

void set_trusted_issuers(array(array(string)) i)

Description

Sets the list of trusted certificate issuers.

Parameter a

An array of certificate chains whose root is self signed (ie a root issuer), and whose final certificate is an issuer that we trust. The root of the certificate should be first certificate in the chain. The string is a DER-encoded certificate, which typically must be decoded using MIME.decode_base64 or Tools.PEM.Msg first.

If this array is left empty, and the context is set to verify certificates, a certificate chain must have a root that is self signed.


Method get_trusted_issuers

array(array(string)) get_trusted_issuers()

Description

Get the list of trusted issuers. See set_trusted_issuers .


Variable verify_certificates

int verify_certificates

Description

Determines whether certificates presented by the peer are verified, or just accepted as being valid.


Crypto.RSA long_rsa
Crypto.RSA short_rsa

Description

Temporary, non-certified, private keys, used with a server_key_exchange message. The rules are as follows:

If the negotiated cipher_suite has the "exportable" property, and short_rsa is not zero, send a server_key_exchange message with the (public part of) the short_rsa key.

If the negotiated cipher_suite does not have the exportable property, and long_rsa is not zero, send a server_key_exchange message with the (public part of) the long_rsa key.

Otherwise, dont send any server_key_exchange message.


Variable dsa

Crypto.DSA dsa

Description

Servers dsa key.


Variable dh_params

.Cipher.DHParameters dh_params

Description

Parameters for dh keyexchange.


Variable random

function(int:string) random

Description

Used to generate random cookies for the hello-message. If we use the RSA keyexchange method, and this is a server, this random number generator is not used for generating the master_secret.


Variable certificates

array(string) certificates

Description

The server's certificate, or a chain of X509.v3 certificates, with the server's certificate first and root certificate last.


Variable preferred_auth_methods

array(int) preferred_auth_methods

Description

For client authentication. Used only if auth_level is AUTH_ask or AUTH_require.


Variable preferred_suites

array(int) preferred_suites

Description

Cipher suites we want the server to support, best first.


Method rsa_mode

void rsa_mode()

Description

Set preferred_suites to RSA based methods.


Method dhe_dss_mode

void dhe_dss_mode()

Description

Set preferred_suites to DSS based methods.


Variable preferred_compressors

array(int) preferred_compressors

Description

Always ({ COMPRESSION_null })


Variable use_cache

int use_cache

Description

Non-zero to enable cahing of sessions


Variable session_lifetime

int session_lifetime

Description

Sessions are removed from the cache when they are older than this limit (in seconds). Sessions are also removed from the cache if a connection using the session dies unexpectedly.


Method lookup_session

.session lookup_session(string id)

Description

Lookup a session identifier in the cache. Returns the corresponding session, or zero if it is not found or caching is disabled.


Method new_session

.session new_session()

Description

Create a new session.


Method record_session

void record_session(.session s)

Description

Add a session to the cache (if caching is enabled).


Method purge_session

void purge_session(object s)

Description

Remove a session from the cache.

  CLASS SSL.handshake

Description

SSL.handshake keeps the state relevant for SSL handshaking. This includes a pointer to a context object (which doesn't change), various buffers, a pointer to a session object (reuse or created as appropriate), and pending read and write states being negotiated.

Each connection will have two sets or read and write state: The current read and write states used for encryption, and pending read and write states to be taken into use when the current keyexchange handshake is finished.



string client_random
string server_random

Description

Random cookies, sent and received with the hello-messages.


Method handle_handshake

int(-1..1) handle_handshake(int type, string data, string raw)

Description

Do handshake processing. Type is one of HANDSHAKE_*, data is the contents of the packet, and raw is the raw packet received (needed for supporting SSLv2 hello messages).

This function returns 0 if hadshake is in progress, 1 if handshake is finished, and -1 if a fatal error occured. It uses the send_packet() function to trasnmit packets.

  CLASS SSL.https

Description

Dummy HTTPS server



Inherit sslport

inherit SSL.sslport : sslport

  CLASS SSL.packet

Description

SSL Record Layer. Handle formatting and parsing of packets.


  CLASS SSL.session

Description

The most important information in a session object is a choice of encryption algorithms and a "master secret" created by keyexchange with a client. Each connection can either do a full key exchange to established a new session, or reuse a previously established session. That is why we have the session abstraction and the session cache. Each session is used by one or more connections, in sequence or simultaneously.

It is also possible to change to a new session in the middle of a connection.



Variable identity

string identity

Description

Identifies the session to the server


Variable compression_algorithm

int compression_algorithm

Description

Always COMPRESSION_null.


Variable cipher_suite

int cipher_suite

Description

Constant defining a choice of keyexchange, encryption and mac algorithm.


Variable cipher_spec

.Cipher.CipherSpec cipher_spec

Description

Information about the encryption method derived from the cipher_suite.


Variable ke_method

int ke_method

Description

Key exchange method, also derived from the cipher_suite.


Variable master_secret

string master_secret

Description

48 byte secret shared between the client and the server. Used for deriving the actual keys.


Variable cert_data

mapping cert_data

Description

information about the certificate in use by the peer, such as issuing authority, and verification status.


Variable peer_certificate_chain

array(string) peer_certificate_chain


Method set_cipher_suite

void set_cipher_suite(int suite, int version)

Description

Sets the proper authentication method and cipher specification for the given cipher suite and verison .


Method set_compression_method

void set_compression_method(int compr)

Description

Sets the compression method. Currently only COMPRESSION_null is supported.


Method generate_keys

array(string) generate_keys(string client_random, string server_random, array(int) version)

Description

Generates keys appropriate for the SSL version given in version , based on the client_random and server_random .

Returns
Array
string 0

Client write MAC secret

string 1

Server write MAC secret

string 2

Client write key

string 3

Server write key

string 4

Client write IV

string 5

Server write IV



Method new_server_states

array(.state) new_server_states(string client_random, string server_random, array(int) version)

Description

Computes a new set of encryption states, derived from the client_random, server_random and master_secret strings.

Returns
Array
SSL.state read_state

Read state

SSL.state write_state

Write state



Method new_client_states

array(.state) new_client_states(string client_random, string server_random, array(int) version)

Description

Computes a new set of encryption states, derived from the client_random, server_random and master_secret strings.

Returns
Array
SSL.state read_state

Read state

SSL.state write_state

Write state


  CLASS SSL.sslfile

Description

Interface similar to Stdio.File .

  • Handles blocking and nonblocking mode.

  • Handles callback mode in an arbitrary backend (also in blocking mode).

  • Read and write operations might each do both reading and writing. In callback mode that means that installing either a read or a write callback might install both internally. It also means that reading in one thread while writing in another doesn't work.

  • Callback changing operations like set_blocking and set_nonblocking aren't atomic.

  • Apart from the above, thread safety/atomicity characteristics are retained.

  • Blocking characterstics are retained for all functions.

  • Connection init (create ) and close (close ) can do both reading and writing.

  • Abrupt remote close without the proper handshake gets the errno System.EPIPE .

  • Objects do not contain cyclic references, so they are closed and destructed timely when dropped.


Method create

void SSL.sslfile(Stdio.File stream, SSL.context ctx, int|void is_client, int|void is_blocking)

Description

Create a connection over stream , which should be an open socket or pipe. ctx is the SSL context. If is_client is set then a client-side connection is started, server-side otherwise. If is_blocking is set then the stream is initially set in blocking mode, nonblocking mode otherwise.

The backend used by stream is taken over and restored after the connection is closed (see close ). The callbacks and id in stream are overwritten.


Method get_peer_certificate_info

mapping get_peer_certificate_info()

Description

returns peer certificate information, if any.


Method get_peer_certificates

array get_peer_certificates()

Description

returns the peer certificate chain, if any.


Method close

int close(void|string how, void|int clean_close)

Description

Close the connection. Both the read and write ends are always closed - the argument how is only for Stdio.File compatibility and must be either "rw" or 0.

If clean_close is set then close messages are exchanged to shut down the SSL connection but not the underlying stream. It may then continue to be used for other communication afterwards. The default is to send a close message and then close the stream without waiting for a response.

Returns zero and sets the errno to System.EBADF if the connection already is closed. Other I/O errors are thrown.

Note

In nonblocking mode the stream isn't closed right away and the backend will be used for a while afterwards. If there's an I/O problem it won't be signalled immediately.

Note

I/O errors from both reading and writing might occur in blocking mode.

Note

If a clean close is requested and data following the close message is received at the same time, then this object will read it and has no way to undo that. That data can be retrieved with read afterwards.


Method shutdown

Stdio.File shutdown()

Description

Shut down the SSL connection without sending any more packets. The underlying stream is returned if the connection isn't shut down already and if a nonclean close hasn't been requested.


Method read

string read(void|int length, void|int(0..1) not_all)

Description

Read some (decrypted) data from the connection. Works like Stdio.File.read .

Note

I/O errors from both reading and writing might occur in blocking mode.


Method write

int write(string|array(string) data, mixed ... args)

Description

Write some (unencrypted) data to the connection. Works like Stdio.File.write except that this function often buffers some data internally, so there's no guarantee that all the consumed data has been successfully written to the stream in nonblocking mode. It keeps the internal buffering to a minimum, however.

Note

This function returns zero if attempts are made to write data during the handshake phase.

Note

I/O errors from both reading and writing might occur in blocking mode.


Method renegotiate

int renegotiate()

Description

Renegotiate the connection by starting a new handshake. Note that the accept callback will be called again when the handshake is finished.

Returns zero if there are any I/O errors. errno() will give the details.

Note

The read buffer is not cleared - a read() afterwards will return data from both before and after the renegotiation.

Bugs

Data in the write queue in nonblocking mode is not properly written before resetting the connection. Do a blocking write("") first to avoid problems with that.


Method set_nonblocking

void set_nonblocking(void|function(mixed:void) read, void|function(void|mixed:void) write, void|function(void|mixed:void) close, void|function(void|mixed:void) read_oob, void|function(void|mixed:void) write_oob, void|function(void|mixed:void) accept)

Description

Set the stream in nonblocking mode, installing the specified callbacks. The alert callback isn't touched.

Note

Prior to version 7.5.12, this function didn't set the accept callback.

Bugs

read_oob and write_oob are currently ignored.


Method set_blocking

void set_blocking()

Description

Set the stream in blocking mode. All but the alert callback are zapped.

Note

There might be some data still waiting to be written to the stream. That will be written in the next blocking call, regardless what it is.

Note

This function doesn't solve the case when the connection is used nonblocking in some backend thread and another thread switches it to blocking and starts using it. To solve that, put a call out in the backend from the other thread that switches it to blocking, and then wait until that call out has run.

Note

Prior to version 7.5.12, this function didn't clear the accept callback.


Method errno

int errno()


Method set_alert_callback

void set_alert_callback(function(object:void) alert)

Description

Install a function that will be called when an alert packet is received. It doesn't affect the callback mode - it's called both from backends and from within normal function calls like read and write .


Method query_alert_callback

function(object:void) query_alert_callback()


Method set_accept_callback

void set_accept_callback(function(object:int) accept)

Description

Install a function that will be called when the handshake is finished and the connection is ready for use.

the callback function will be called with the sslfile object and the additional id arguments (set with set_id ).

Note

Like the read, write and close callbacks, installing this callback implies callback mode, even after the handshake is done.


Method query_accept_callback

function(object:int) query_accept_callback()


Method set_read_callback

void set_read_callback(function(mixed:int) read)

Description

Install a function to be called when data is available.


Method query_read_callback

function(mixed:int) query_read_callback()


Method set_write_callback

void set_write_callback(function(void|mixed:int) write)

Description

Install a function to be called when data can be written.


Method query_write_callback

function(void|mixed:int) query_write_callback()


Method set_close_callback

void set_close_callback(function(void|mixed:int) close)

Description

Install a function to be called when the connection is closed.

It will only be called if the connection is closed cleanly with the proper messages. Any other way of closing the it is considered an error to avoid truncation attacks.


Method query_close_callback

function(void|mixed:int) query_close_callback()


Method set_id

void set_id(mixed id)


Method query_id

mixed query_id()


Method set_backend

void set_backend(Pike.Backend backend)

Description

Set the backend used for the file callbacks.


Method query_backend

Pike.Backend query_backend()

Description

Return the backend used for the file callbacks.


Method query_address

string query_address(int|void arg)


Method query_stream

Stdio.File query_stream()

Description

Return the underlying stream.

Note

Avoid any temptation to do destruct(sslfile_obj->query_stream()). That almost certainly creates more problems than it solves.


Method query_connection

SSL.connection query_connection()

Description

Return the SSL connection object.


Method query_context

SSL.context query_context()

Description

Return the SSL context object.

  CLASS SSL.sslport

Description

Interface similar to Stdio.Port.


Inherit socket

inherit Stdio.Port : socket


Inherit context

inherit .context : context


Inherit accept_queue

inherit ADT.Queue : accept_queue

  CLASS SSL.state

Description

A connection switches from one set of state objects to another, one or more times during its lifetime. Each state object handles a one-way stream of packets, and operates in either decryption or encryption mode.



Variable session

object session

Description

Information about the used algorithms.


Variable mac

.Cipher.MACAlgorithm mac

Description

Message Authentication Code


Variable crypt

.Cipher.CipherAlgorithm crypt

Description

Encryption or decryption object.


Variable seq_num

Gmp.mpz seq_num

Description

64-bit sequence number.


Method decrypt_packet

Alert|.packet decrypt_packet(.packet packet, int version)

Description

Destructively decrypts a packet (including inflating and MAC-verification, if needed). On success, returns the decrypted packet. On failure, returns an alert packet. These cases are distinguished by looking at the is_alert attribute of the returned packet.


Method encrypt_packet

Alert|.packet encrypt_packet(.packet packet, int version)

Description

Encrypts a packet (including deflating and MAC-generation).

  Module SSL.Cipher

Description

Encryption and MAC algorithms used in SSL.



Method prf

string SSL.Cipher.prf(string secret, string label, string seed, int len)


Method rsa_sign

ADT.struct SSL.Cipher.rsa_sign(object context, string cookie, ADT.struct struct)


Method rsa_verify

int(0..1) SSL.Cipher.rsa_verify(object context, string cookie, ADT.struct struct, Gmp.mpz signature)


Method dsa_sign

ADT.struct SSL.Cipher.dsa_sign(object context, string cookie, ADT.struct struct)


Method anon_sign

ADT.struct SSL.Cipher.anon_sign(object context, string cookie, ADT.struct struct)

  CLASS SSL.Cipher.CipherAlgorithm

Description

Cipher algorithm interface.


Method set_encrypt_key
Method set_decrypt_key

this_program set_encrypt_key(string)
this_program set_decrypt_key(string)

Description

Set the key used for encryption/decryption, and enter encryption mode.


Method block_size

int(0..) block_size()

Description

Return the block size for this crypto.

  CLASS SSL.Cipher.MACAlgorithm

Description

Message Authentication Code interface.

  CLASS SSL.Cipher.CipherSpec

Description

Cipher specification.

  CLASS SSL.Cipher.MACsha

Description

MAC using SHA.


Method hash_raw

string hash_raw(string data)


Method hash

string hash(object packet, Gmp.mpz seq_num)


Method hash_master

string hash_master(string data, string|void s)


Method create

void SSL.Cipher.MACsha(string|void s)

  CLASS SSL.Cipher.MACmd5

Description

MAC using MD5.


Inherit MACsha

inherit MACsha : MACsha

  CLASS SSL.Cipher.MAChmac_sha


Method hash

string hash(object packet, Gmp.mpz seq_num)


Method create

void SSL.Cipher.MAChmac_sha(string|void s)

  CLASS SSL.Cipher.MAChmac_md5


Inherit MAChmac_sha

inherit MAChmac_sha : MAChmac_sha


Method create

void SSL.Cipher.MAChmac_md5(string|void s)

  CLASS SSL.Cipher.DES


Inherit CBC

inherit Crypto.CBC : CBC

  CLASS SSL.Cipher.DES3


Inherit CBC

inherit Crypto.CBC : CBC

  CLASS SSL.Cipher.DHParameters

Description

Diffie-Hellman parameters.


Gmp.mpz p
Gmp.mpz g
Gmp.mpz order

  Module SSL.Constants

Description

Protocol constants

  ENUM SSL.Constants.KeyExchangeType

Description

Key exchange methods.


Constant KE_rsa

constant SSL.Constants.KE_rsa

Description

Rivest-Shamir-Adelman


Constant KE_dh

constant SSL.Constants.KE_dh

Description

Diffie-Hellman

  ENUM SSL.Constants.CompressionType

Description

Compression methods.


Constant COMPRESSION_null

constant SSL.Constants.COMPRESSION_null

Description

No compression.

  Module Protocols.LysKOM

  CLASS Protocols.LysKOM.Connection

Description

This class contains nice abstraction for calls into the server. They are named "call", "async_call" or "async_cb_call", depending on how you want the call to be done.



Method XXX
Method async_XXX
Method async_cb_XXX

mixed XXX(mixed ... args)
object async_XXX(mixed ... args)
object async_cb_XXX(function callback, mixed ... args)

Description

Do a call to the server. This really clones a Protocols.LysKOM.Request object, and initialises it. XXX is to be read as one of the calls in the lyskom protocol. ('-' is replaced with '_'.) (ie, logout, async_login or async_cb_get_conf_stat.)

The first method is a synchronous call. This will send the command, wait for the server to execute it, and then return the result.

The last two are asynchronous calls, returning an initialised Protocols.LysKOM.Request object.


int protocol_level
string session_software
string software_version

Description

Description of the connected server.


Method create

void Protocols.LysKOM.Connection(string server)
void Protocols.LysKOM.Connection(string server, mapping options)

Description

The options argument is a mapping with the following members:

"login" : int|string

login as this person number (get number from name).

"password" : string

send this login password.

"invisible" : int(0..1)

if set, login invisible.

"port" : int(0..65535)

server port (default is 4894).

"whoami" : string

present as this user (default is from uid/getpwent and hostname).


  CLASS Protocols.LysKOM.Session



Variable user

object user

Description

This variable contains the Protocols.LysKOM.Session.Person that is logged in.


Method create

void Protocols.LysKOM.Session(string server)
void Protocols.LysKOM.Session(string server, mapping options)

Description

Initializes the session object, and opens a connection to that server.

options is a mapping of options:

"login" : int|string

login as this person number (get number from name).

"create" : string

create a new person and login with it.

"password" : string

send this login password.

"invisible" : int(0..1)

if set, login invisible.

"port" : int(0..65535)

server port (default is 4894).

"whoami" : string

present as this user (default is from uid/getpwent and hostname).


See also

Connection


Method text

Text text(int no)

Description

Returns the text no .


Method person

Person person(int no)

Description

Returns the person no .


Method conference

Conference conference(int no)

Description

Returns conference number no .


Method try_complete_person

array(ProtocolTypes.ConfZInfo) try_complete_person(string orig)

Description

Runs a LysKOM completion on the given string, returning an array of confzinfos of the match.


Method login

object login(int user_no, string password)
object login(int user_no, string password, int invisible)

Description

Performs a login. Throws a lyskom error if unsuccessful.

Returns

The session object logged in.


Method create_person

object create_person(string name, string password)

Description

Create a person, which will be logged in. returns the new person object


Method logout

this_program logout()

Description

Logouts from the server. returns the called object


Method create_text

object create_text(string subject, string body, mapping options)
object create_text(string subject, string body, mapping options, function callback, mixed ... extra)

Description

Creates a new text.

if callback is given, the function will be called when the text has been created, with the text as first argument. Otherwise, the new text is returned.

options is a mapping that may contain:

"recpt" : Conference|array(Conference)

recipient conferences.

"cc" : Conference|array(Conference)

cc-recipient conferences.

"bcc" : Conference|array(Conference)

bcc-recipient conferences*.

"comm_to" : Text|array(Text)

The text(s) to be commented.

"foot_to" : Text|array(Text)

The text(s) to be footnoted.

"anonymous" : int(0..1)

send text anonymously.

"aux_items" : array(AuxItemInput)

AuxItems you want to set for the text*.


Note

The items above marked with '*' are only available on protocol 10 servers. A LysKOM error will be thrown if the call fails.

See also

Conference.create_text() , Text.comment() , Text.footnote()


Method send_message

object|void send_message(string textstring, mapping options)

Description

Sends a message.

options is a mapping that may contain:

"recpt" : Conference

recipient conference.



Method register_async_message_callback

void register_async_message_callback(function(int:void) cb)

  CLASS Protocols.LysKOM.Session.AuxItemInput

FIXME

Undocumented


Inherit AuxItemInput

inherit ProtocolTypes.AuxItemInput : AuxItemInput

  CLASS Protocols.LysKOM.Session.AuxItems

FIXME

Undocumented

  CLASS Protocols.LysKOM.Session.Text

Description

All variables in this class is read only.

FIXME

Undocumented


Variable no

int no

Description

The text number, as spicified to create .


Variable err

object err

Description

Undocumented


Method create

void Protocols.LysKOM.Session.Text(string textnumber)

Description

Initializes a Text object.


Method mark_as_read

void mark_as_read()

FIXME

Undocumented.


mixed prefetch_text
mixed prefetch_stat
mixed lines
mixed characters
mixed clear_stat
mixed aux_items

FIXME

Undocumented


Variable text

string text

Description

The actual text (or body if you wish).


Variable subject

string subject

Description

The message subject.


Variable author

string author

Description

The author of the text.


Variable misc

mixed misc

Description

Misc info, including what conferences the message is posted to.

FIXME

Needs a more complete description.


Variable marks

int marks

Description

The number of marks on this text.


Variable creation_time

mixed creation_time

Description

The time the text was created on the server.

  CLASS Protocols.LysKOM.Session.Membership

Description

All variables in this class is read only.


Variable last_time_read

object last_time_read


Variable priority

int(0..255) priority


Variable last_text_read

int last_text_read


Variable read_texts

array(int) read_texts


Variable added_at

object added_at


Variable type

multiset(string) type


Variable position

int position


Variable conf

object conf


Method number_unread

int number_unread()


Method query_read_texts

void query_read_texts()


Method unread_texts

array(object) unread_texts()

  CLASS Protocols.LysKOM.Session.Person


Variable no

int no


Method create

void Protocols.LysKOM.Session.Person(int no)


mixed prefetch_stat
mixed prefetch_conf
mixed prefetch_membership

FIXME

Undocumented


object error
Text user_area
mixed username
mixed privileges
mixed flags
mixed last_login
mixed total_time_present
mixed sessions
mixed created_lines
mixed created_bytes
mixed read_texts
mixed no_of_text_fetches
mixed created_persons
mixed created_confs
mixed first_created_local_no
mixed no_of_created_texts
mixed no_of_marks
mixed no_of_confs
mixed unread
int(0..0) clear_membership
mixed membership

FIXME

Undocumented

  CLASS Protocols.LysKOM.Session.Conference


Method create

void Protocols.LysKOM.Session.Conference(int no)

  Module Protocols.LysKOM.ProtocolTypes

Description

Data types as defined by the LysKOM protocol specification.


  Module Protocols.LysKOM.Request

Description

This module contains nice abstraction for calls into the server. They are named "call", "async_call" or "async_cb_call", depending on how you want the call to be done.



  CLASS Protocols.LysKOM.Request._Request

Description

This is the main request class. All lyskom request classes inherit this class.


Method async
Method sync

void async(mixed ... args)
mixed sync(mixed ... args)

Description

Initialise an asynchronous or a synchronous call, the latter is also evaluating the result. This calls indata() in itself, to get the correct arguments to the lyskom protocol call.


Method _async
Method _sync

void _async(int call, mixed_data)
mixed _sync(int call, mixed_data)

Description

Initialise an asynchronous or a synchronous call, the latter is also evaluating the result. These are called by async and sync respectively.


Method _reply
Method reply

mixed _reply(object|array what)
mixed reply(object|array what)

Description

_reply() is called as callback to evaluate the result, and calls reply() in itself to do the real work.


Method `()

mixed `()()

Description

Wait for the call to finish.


Variable ok

int(0..1) ok

Description

Tells if the call has executed ok


Variable error

object error

Description

How the call failed. The call has completed if (ok||error).

  Module Protocols.DNS

Description

Domain Name System RFC 1035


Method async_ip_to_host

void Protocols.DNS.async_ip_to_host(string ip, function cb, mixed ... cba)


Method async_host_to_ip

void Protocols.DNS.async_host_to_ip(string host, function cb, mixed ... cba)


Method async_get_mx_all

void Protocols.DNS.async_get_mx_all(string host, function cb, mixed ... cba)


Method async_get_mx

void Protocols.DNS.async_get_mx(string host, function cb, mixed ... cba)


Method gethostbyname

array Protocols.DNS.gethostbyname(string host)


Method gethostbyaddr

array Protocols.DNS.gethostbyaddr(string host)


Method get_mx

string Protocols.DNS.get_mx(string host)


Method get_primary_mx

string Protocols.DNS.get_primary_mx(string host)

  ENUM Protocols.DNS.ResourceClass

Description

Resource classes


Constant C_IN

constant Protocols.DNS.C_IN

Description

Class Internet


Constant C_CS

constant Protocols.DNS.C_CS

Description

Class CSNET (Obsolete)


Constant C_CH

constant Protocols.DNS.C_CH

Description

Class CHAOS


Constant C_HS

constant Protocols.DNS.C_HS

Description

Class Hesiod


Constant C_ANY

constant Protocols.DNS.C_ANY

Description

Class ANY

  ENUM Protocols.DNS.EntryType

Description

Entry types


Constant T_A

constant Protocols.DNS.T_A

Description

Type - host address


Constant T_NS

constant Protocols.DNS.T_NS

Description

Type - authoritative name server


Constant T_MD

constant Protocols.DNS.T_MD

Description

Type - mail destination (Obsolete - use MX)


Constant T_MF

constant Protocols.DNS.T_MF

Description

Type - mail forwarder (Obsolete - use MX)


Constant T_CNAME

constant Protocols.DNS.T_CNAME

Description

Type - canonical name for an alias


Constant T_SOA

constant Protocols.DNS.T_SOA

Description

Type - start of a zone of authority


Constant T_MB

constant Protocols.DNS.T_MB

Description

Type - mailbox domain name (EXPERIMENTAL)


Constant T_MG

constant Protocols.DNS.T_MG

Description

Type - mail group member (EXPERIMENTAL)


Constant T_MR

constant Protocols.DNS.T_MR

Description

Type - mail rename domain name (EXPERIMENTAL)


Constant T_NULL

constant Protocols.DNS.T_NULL

Description

Type - null RR (EXPERIMENTAL)


Constant T_WKS

constant Protocols.DNS.T_WKS

Description

Type - well known service description


Constant T_PTR

constant Protocols.DNS.T_PTR

Description

Type - domain name pointer


Constant T_HINFO

constant Protocols.DNS.T_HINFO

Description

Type - host information


Constant T_MINFO

constant Protocols.DNS.T_MINFO

Description

Type - mailbox or mail list information


Constant T_MX

constant Protocols.DNS.T_MX

Description

Type - mail exchange


Constant T_TXT

constant Protocols.DNS.T_TXT

Description

Type - text strings


Constant T_AAAA

constant Protocols.DNS.T_AAAA

Description

Type - IPv6 address record (RFC 1886, deprecated)


Constant T_LOC

constant Protocols.DNS.T_LOC

Description

Type - Location Record (RFC 1876)


Constant T_SRV

constant Protocols.DNS.T_SRV

Description

Type - Service location record (RFC 2782)


Constant T_A6

constant Protocols.DNS.T_A6

Description

Type - IPv6 address record (RFC 2874, incomplete support)

  CLASS Protocols.DNS.protocol

Description

Low level DNS protocol


Method mkquery

string mkquery(string|mapping dnameorquery, int|void cl, int|void type)

Description

create a DNS query PDU

Parameter dnameorquery
Parameter cl

record class such as Protocols.DNS.C_IN

Parameter type

query type such Protocols.DNS.T_A

Returns

data suitable for use with Protocols.DNS.client.do_sync_query

Example

// generate a query PDU for a address lookup on the hostname pike.ida.liu.se string q=Protocols.DNS.protocol()->mkquery("pike.ida.liu.se", Protocols.DNS.C_IN, Protocols.DNS.T_A);

  CLASS Protocols.DNS.server

Description

Implements a Domain Name Service (DNS) server.


Inherit protocol

inherit protocol : protocol


Inherit udp

inherit Stdio.UDP : udp


Method reply_query

mapping reply_query(mapping query, mapping udp_data)

Description

Reply to a query (stub).

Parameter query

Parsed query.

Parameter udp_data

Raw UDP data.

Overload this function to implement the proper lookup.

Returns

Returns 0 (zero) on failure, or a result mapping on success:

"rcode" : int
Array
mapping(string:string|int) entry
"name" : string|array(string)
"type" : int
"cl" : int


"qd" : array(mapping(string:string|int))|void
"an" : array|void 
"ns" : array|void 
"ar" : array|void 

  CLASS Protocols.DNS.client

Description

Synchronous DNS client.


Inherit protocol

inherit protocol : protocol


Method create

void Protocols.DNS.client()
void Protocols.DNS.client(void|string|array server, void|int|array domain)


Method do_sync_query

mapping do_sync_query(string s)

Description

perform a syncronous query

Parameter s

result of Protocols.DNS.protocol.mkquery

Returns

mapping containing query result or 0 on failure/timeout

Example

// perform a hostname lookup, results stored in r->an object d=Protocols.DNS.client(); mapping r=d->do_sync_query(d->mkquery("pike.ida.liu.se", C_IN, T_A));


Method gethostbyname

array gethostbyname(string hostname)

Description

Queries the host name from the default or given DNS server. The result is an array with three elements,

Returns

An array with the requested information about the specified host.

Array
string hostname

Hostname.

array(string) ip

IP number(s).

array(string) aliases

DNS name(s).



Method getsrvbyname

array getsrvbyname(string service, string protocol, string|void name)

Description

Queries the service record (RFC 2782) from the default or given DNS server. The result is an array of arrays with the following six elements for each record. The array is sorted according to the priority of each record.

Each element of the array returned represents a service record. Each service record contains the following:

Returns

An array with the requested information about the specified service.

Array
int priority

Priority

int weight

Weight in event of multiple records with same priority.

int port

port number

string target

target dns name



Method gethostbyaddr

array gethostbyaddr(string hostip)

Description

Queries the host name or ip from the default or given DNS server. The result is an array with three elements,

Returns

The requested data about the specified host.

Array
string hostip

The host IP.

array(string) ip

IP number(s).

array(string) aliases

DNS name(s).



Method get_primary_mx

string get_primary_mx(string hostname)

Description

Queries the primary mx for the host.

Returns

Returns the hostname of the primary mail exchanger.

  Module Protocols

  Module Protocols.IRC

  CLASS Protocols.IRC.Client



Method create

void Protocols.IRC.Client(string server, void|mapping(string:mixed) options)

Parameter server

The IRC server to connect to.

Parameter options

An optional mapping with additional IRC client options.

"port" : int

Defaults to 6667.

"user" : string

Defaults to "unknown" on systems without getpwuid and getuid and to getpwuid(getuid())[0] on systems with.

"nick" : string

Defaults to "Unknown" on systems without getpwuid and getuid and to String.capitalize(getpwuid(getuid())[0]) on systems with.

"realname" : string

Defaults to "Mr. Anonymous" on systems without getpwuid and getuid and to getpwuid(getuid())[4] on systems with.

"host" : string

Defaults to "localhost" on systems without uname and to uname()->nodename on systems with.

"ping_interval" : int

Defaults to 120.

"ping_timeout" : int

Defaults to 120.

"connection_lost" : function(void:void)

This function is called when the connection to the IRC server is lost or when a ping isn't answered with a pong within the time set by the ping_timeout option. The default behaviour is to complain on stderr and self destruct.

"error_notify" : function(mixed ... :void)

This function is called when a KILL or ERROR command is recieved from the IRC server.

"system_notify" : function(string:void) 
"motd_notify" : function(string:void) 
"error_nickinuse" : function(string:) 
"generic_notify" : function(string:)

The arguments are from, type, to, message and extra.

"quit_notify" : function(string:)

The arguments are who and why.

"privmsg_notify" : function(Person:)

The arguments are originator, message and to.

"notice_notify" : function(Person:)

The arguments are originator, message and to.

"nick_notify" : function(Person:)

The arguments are originator and to.



Method close

void close()

Description

Closes the connection to the server.

  CLASS Protocols.IRC.Person

Description

Abstract class for a person.


Variable nick

string nick

Description

User nickname, e.g. "Mirar".


Variable user

string user

Description

User name, e.g. "mirar".


Variable ip

string ip

Description

User domain, e.g. "mistel.idonex.se".


Variable last_action

int last_action

Description

Time of last action, represented as posix time.

  CLASS Protocols.IRC.Channel

Description

Abstract class for a IRC channel.


Variable name

string name

Description

The name of the channel.

  Module Protocols.LDAP

  CLASS Protocols.LDAP.client

Description

Contains the client implementation of the LDAP protocol. All of the version 2 protocol features are implemented but only the base parts of the version 3.



Inherit protocol

inherit .protocol : protocol


Variable info

mapping info

Description

Several information about code itself and about active connection too


Method create

void Protocols.LDAP.client()
void Protocols.LDAP.client(string url)
void Protocols.LDAP.client(string url, object context)

Description

Create object. The first optional argument can be used later for subsequence operations. The second one can specify TLS context of connection. The default context only allows 128-bit encryption methods, so you may need to provide your own context if your LDAP server supports only export encryption.

Parameter url

LDAP server URL in form "ldap://hostname/basedn?attrlist?scope?ext"

Parameter context

TLS context of connection

See also

LDAP.client.bind , LDAP.client.search


Method bind

int bind()
int bind(string dn, string password)
int bind(string dn, string password, int version)

Description

Authenticates connection to the direcory.

First form uses default value previously entered in create.

Second form uses value from parameters:

Parameter dn

The distinguished name (DN) of an entry aginst which will be made authentication.

Parameter password

Password used for authentication.

Third form allows specify the version of LDAP protocol used by connection to the LDAP server.

Parameter version

Only 2 or 3 can be entered.

Returns

Returns 1 on success, 0 otherwise.

Note

Only simple authentication type is implemented. So be warned clear text passwords are sent to the directory server.

Note

The API change: the returning code was changed in Pike 7.3+ to follow his logic better.


Method unbind

int unbind()

Description

Unbinds from the directory and close the connection.


Method delete

int delete(string dn)

Description

Deletes entry from the LDAP server.

Parameter dn

The distinguished name of deleted entry.

Returns

Returns 1 on success, 0 otherwise.

Note

The API change: the returning code was changed in Pike 7.3+ to follow his logic better.


Method compare

int compare(string dn, array(string) aval)

Description

Compares given attribute value with one in the directory.

Parameter dn

The distinguished name of compared entry.

Parameter aval

The mapping of compared attributes and theirs values.

Returns

Returns 1 on success, 0 otherwise.

Note

The API change: the returning code was changed in Pike 7.3+ to follow his logic better.


Method add

int add(string dn, mapping(string:array(string)) attrs)

Description

The Add Operation allows a client to request the addition of an entry into the directory

Parameter dn

The Distinguished Name of the entry to be added.

Parameter attrs

The mapping of attributes and their values that make up the content of the entry being added.

Returns

Returns 1 on success, 0 otherwise.

Note

The API change: the returning code was changed in Pike 7.3+ to follow his logic better.


Method search

object|int search(string|void filter, array(string)|void attrs, int|void attrsonly)

Description

Search LDAP directory.

Parameter filter

Search filter used when searching directory objects.

Parameter attrs

The array of attribute names which will be returned by server. for every entry.

Parameter attrsonly

The flag causes server return only attribute name but not the attribute values.

Returns

Returns object LDAP.client.result on success, 0 otherwise.

Note

For syntax of search filter see at RFC 1960 (http://community.roxen.com/developers/idocs/rfc/rfc1960.html).

Note

The API change: the returning code was changed in Pike 7.3+ to follow his logic better.

See also

LDAP.client.result , LDAP.client.result.fetch


Method set_basedn

string set_basedn(string base_dn)

Parameter base_dn

base DN for search


Method set_scope

int set_scope(int|string scope)

Description

Sets value of scope for search operation.

Parameter scope

Value can be integer or its corresponding string value. 0: base, 1: one, 2: sub


Method set_option

int set_option(int opttype, int value)

Parameter option_type

LDAP_OPT_xxx

Parameter value

new value for option


Method get_option

int get_option(int opttype)

Parameter option_type

LDAP_OPT_xxx


Method modifydn

int modifydn(string dn, string newrdn, int deleteoldrdn, string|void newsuperior)

Description

The Modify DN Operation allows a client to change the leftmost (least significant) component of the name of an entry in the directory, or to move a subtree of entries to a new location in the directory.

Parameter dn

DN of source object

Parameter newrdn

RDN of destination

Parameter deleteoldrdn

The parameter controls whether the old RDN attribute values are to be retained as attributes of the entry, or deleted from the entry.

Parameter newsuperior

If present, this is the Distinguished Name of the entry which becomes the immediate superior of the existing entry.

Returns

Returns 1 on success, 0 otherwise.

Note

The API change: the returning code was changed in Pike 7.3+ to follow his logic better.


Method modify

int modify(string dn, mapping(string:array(mixed)) attropval)

Description

The Modify Operation allows a client to request that a modification of an entry be performed on its behalf by a server.

Parameter dn

The distinguished name of modified entry.

Parameter attropval

The mapping of attributes with requested operation and attribute's values.

attropval=([ attribute: ({operation, value1, value2, ...}) ])

where operation is one of the following: 0 (LDAP_OPERATION_ADD) - add values listed to the given attribute, creating the attribute if necessary 1 (LDAP_OPERATION_DELETE) - delete values listed from the given attribute, removing the entire attribute if no values are listed, or if all current values of the attribute are listed for deletion 2 (LDAP_OPERATION_REPLACE) - replace all existing values of the given attribute with the new values listed, creating the attribute if it did not already exist. A replace with no value will delete the entire attribute if it exists, and is ignored if the attribute does not exist

Returns

Returns 1 on uccess, 0 otherwise.

Note

The API change: the returning code was changed in Pike 7.3+ to follow his logic better.


Method get_referrals

array|int get_referrals()

Description

Gets referrals.

Returns

Returns array of referrals or 0.


Method parse_url

mapping|int parse_url(string ldapuri)

Parameter ldapuri

LDAP URL

  CLASS Protocols.LDAP.client.result

Description

Contains the result of a LDAP search.

See also

LDAP.client.search , LDAP.client.result.fetch


Method create

object|int Protocols.LDAP.client.result(array rawres, int|void stuff)

Description

You can't create instances of this object yourself. The only way to create it is via a search of a LDAP server.


Method error_number

int error_number()

Description

Returns error number of search result.

See also

LDAP.client.result.error_string


Method error_string

string error_string()

Description

Returns error description of search result.

See also

LDAP.client.result.error_number


Method num_entries

int num_entries()

Description

Returns the number of entries.

See also

LDAP.client.result.count_entries


Method count_entries

int count_entries()

Description

Returns the number of entries from current cursor possition till end of the list.

See also

LDAP.client.result.first , LDAP.client.result.next


Method fetch

int|mapping(string:array(string)) fetch(int|void idx)

Description

Returns a mapping with an entry for each attribute. Each entry is an array of values of the attribute.

Parameter index

Optional argument can be used for direct access to the entry other then currently pointed by cursor.


Method get_dn

string get_dn()

Description

Returns distinguished name (DN) of the current entry in the result list. Notice that this is the same as fetch()->dn[0].


Method first

void first()

Description

Initialized the result cursor to the first entry in the result list.

See also

LDAP.client.result.next


Method next

int next()

Description

Moves the result cursor to the next entry in the result list. Returns number of remained entries in the result list. Returns 0 at the end.

See also

LDAP.client.result.next

  CLASS Protocols.LDAP.protocol


Inherit ldap

inherit Stdio.File : ldap


Method error_number

int error_number()

Description

Returns error number of last transaction.

See also

LDAP.protocol.error_string


Method error_string

string error_string()

Description

Returns error description of search result.

See also

LDAP.protocol.error_number

  Module Protocols.SMTP


Variable replycodes

mapping(int:string) Protocols.SMTP.replycodes

Description

A mapping(int:string) that maps SMTP return codes to english textual messages.

  CLASS Protocols.SMTP.Client


Inherit Protocol

inherit Protocol : Protocol


Method create

void Protocols.SMTP.Client()
void Protocols.SMTP.Client(Stdio.File server)
void Protocols.SMTP.Client(string server, void|int port)

Description

Creates an SMTP mail client and connects it to the the server provided. The server parameter may either be a string witht the hostnam of the mail server, or it may be a file object acting as a mail server. If server is a string, than an optional port parameter may be provided. If no port parameter is provided, port 25 is assumed. If no parameters at all is provided the client will look up the mail host by searching for the DNS MX record.

Throws

Throws an exception if the client fails to connect to the mail server.


Method send_message

void send_message(string from, array(string) to, string body)

Description

Sends a mail message from from to the mail addresses listed in to with the mail body body . The body should be a correctly formatted mail DATA block, e.g. produced by MIME.Message .

See also

simple_mail

Throws

If the mail server returns any other return code than 200-399 an exception will be thrown.


Method simple_mail

void simple_mail(string to, string subject, string from, string msg)

Description

Sends an e-mail. Wrapper function that uses send_message .

Note

Some important headers are set to: "Content-Type: text/plain; charset=iso-8859-1" and "Content-Transfer-Encoding: 8bit". "Date:" header isn't used at all.

Throws

If the mail server returns any other return code than 200-399 an exception will be thrown.


Method verify

array(int|string) verify(string addr)

Description

Verifies the mail address addr against the mail server.

Returns
Array
int code

The numerical return code from the VRFY call.

string message

The textual answer to the VRFY call.


Note

Some mail servers does not answer truthfully to verfification queries in order to prevent spammers and others to gain information about the mail addresses present on the mail server.

Throws

If the mail server returns any other return code than 200-399 an exception will be thrown.

  CLASS Protocols.SMTP.Configuration

Description

Class to store configuration variable for the SMTP server


Variable maxsize

int maxsize

Description

Message max size


Variable maxrcpt

int maxrcpt

Description

Maximum number of recipients (default 1000)


Variable checkdns

int checkdns

Description

Verify sender domain for MX


Variable checkemail

int checkemail

Description

Lamme check email from validity


Variable givedata

int givedata

Description

Give raw data and normal MIME data, if set to yes your cb_data function should take an extra string argument

  CLASS Protocols.SMTP.Connection

Description

The low-level class for the SMTP server


Variable logfunction

function(string:mixed) logfunction

Description

This function is called whenever the SMTP server logs something. By default the log function is werror .

  CLASS Protocols.SMTP.Server

Description

The use of Protocols.SMTP.server is quite easy and allow you to design custom functions to process mail. This module does not handle mail storage nor relaying to other domains. So it is your job to provide mail storage and relay mails to other servers


Method create

void Protocols.SMTP.Server(array(string) _domains, void|int port, void|string ip, function _cb_mailfrom, function _cb_rcptto, function _cb_data)

Description

Create a receiving SMTP server. It implements RFC 2821, 2822 and 1854.

Parameter domain

Domains name this server relay, you need to provide at least one domain (the first one will be used for MAILER-DAEMON address). if you want to relay everything you can put a '*' after this first domain.

Parameter port

Port this server listen on

Parameter listenip

IP on which server listen

Parameter cb_mailfrom

Mailfrom callback function, this function will be called when a client send a mail from command. This function must take a string as argument (corresponding to the sender's email) and return int corresponding to the SMTP code to output to the client. If you return an array the first element is the SMTP code and the second is the error string to display.

Parameter cb_rcptto

Same as cb_mailfrom but called when a client sends a rcpt to.

Parameter cb_data

This function is called each time a client send a data content. It must have the following synopsis: int cb_data(object mime, string sender, array(string) recipients, void|string rawdata) object mime : the mime data object string sender : sender of the mail (from the mailfrom command) array(string) recipients : one or more recipients given by the rcpt to command return : SMTP code to output to the client. If you return an array the first element is the SMTP code and the second is the error string to display.

Example

Here is an example of silly program that does nothing except outputing informations to stdout. int cb_mailfrom(string mail) { return 250; }

int cb_rcptto(string email) { // check the user's mailbox here return 250; }

int cb_data(object mime, string sender, array(string) recipients) { write(sprintf("smtpd: mailfrom=%s, to=%s, headers=%O\ndata=%s\n", sender, recipients * ", ", mime->headers, mime->getdata())); // check the data and deliver the mail here if(mime->body_parts) { foreach(mime->body_parts, object mpart) write("smtpd: mpart data = %O\n", mpart->getdata()); } return 250; }

int main(int argc, array(string) argv) { Protocols.SMTP.Server(({ "ece.fr" }), 2500, "127.0.0.1", cb_mailfrom, cb_rcptto, cb_data); return -1; }

  Module Protocols.SNMP

Description

SNMPv1 and v2c


Constant ERROR_TOOBIG

constant Protocols.SNMP.ERROR_TOOBIG

Description

Error tooBig


Constant ERROR_NOERROR

constant Protocols.SNMP.ERROR_NOERROR

Description

Error noError


Constant ERROR_NOSUCHNAME

constant Protocols.SNMP.ERROR_NOSUCHNAME

Description

Error noSuchName


Constant ERROR_BADVALUE

constant Protocols.SNMP.ERROR_BADVALUE

Description

Error badValue


Constant ERROR_READONLY

constant Protocols.SNMP.ERROR_READONLY

Description

Error readOnly


Constant ERROR_GENERROR

constant Protocols.SNMP.ERROR_GENERROR

Description

Error genError


Constant REQUEST_GET

constant Protocols.SNMP.REQUEST_GET

Description

PDU type Get


Constant REQUEST_GETNEXT

constant Protocols.SNMP.REQUEST_GETNEXT

Description

PDU type GetNext


Constant REQUEST_SET

constant Protocols.SNMP.REQUEST_SET

Description

PDU type Set


Constant REQUEST_GET_RESPONSE

constant Protocols.SNMP.REQUEST_GET_RESPONSE

Description

PDU type GetResponse


Constant REQUEST_TRAP

constant Protocols.SNMP.REQUEST_TRAP

Description

PDU type Trap

  CLASS Protocols.SNMP.agent

Description

A simple SNMP agent with support for SNMP Get requests


Inherit "protocol"

inherit "protocol"


Method create

void Protocols.SNMP.agent(int|void port, string|void addr)

Description

create a new instance of the agent

Parameter port

the port number to listen for requests on

Parameter addr

the address to bind to for listening

Note

only one agent may be bound to a port at one time the agent does not currently support SMUX or AGENTX or other agent multiplexing protocols.


Method set_threaded

void set_threaded()

Description

Run the agent event loop in a thread, if available.


Method set_managers_only

void set_managers_only(int yesno)

Description

enable manager access limits

Parameter yesno

1 to allow only managers to submit requests 0 to allow any host to submit requests

default setting allows all requests from all hosts


Method set_get_communities

void set_get_communities(array communities)

Description

set the valid community strings for Get requests

Parameter communities

an array of valid Get communities

Note

send an empty array to disable Get requests


Method set_set_communities

void set_set_communities(array communities)

Description

set the valid community strings for Set requests

Parameter communities

an array of valid Set communities

Note

send an empty array to disable Set requests


Method set_managers

void set_managers(array managers)

Description

set the valid manager list for requests

Parameter managers

an array of valid management hosts

Note

send an empty array to disable all requests


Method set_set_oid_callback

void set_set_oid_callback(string oid, function cb)

Description

set the Set request callback function for an Object Identifier

Parameter oid

the string object identifier, such as 1.3.6.1.4.1.132.2 or an asterisk (*) to serve as the handler for all requests for which a handler is specified.

Parameter cb

the function to call when oid is requested by a manager the function should take 3 arguments: a string containing the requested oid, the desired value, and the body of the request as a mapping. The function should return an array containing 3 elements: The first is a boolean indicating success or failure. If success, the next 2 elements should be the SNMP data type of the result followed by the result itself. If failure, the next 2 elements should be the error-status such as Protocols.SNMP.ERROR_TOOBIG and the second is the error-index, if any.

Note

there can be only one callback per object identifier. calling this function more than once with the same oid will result in the new callback replacing the existing one.


Method clear_set_oid_callback

int clear_set_oid_callback(string oid)

Description

clear the Set callback function for an Object Identifier

Parameter oid

the string object identifier, such as 1.3.6.1.4.1.132.2 or an asterisk (*) to indicate the default handler.

Returns

1 if the callback existed, 0 otherwise


Method get_set_oid_callback

void|function get_set_oid_callback(string oid)

Description

get the Set request callback function for an Object Identifier

Parameter oid

the string object identifier, such as 1.3.6.1.4.1.132.2 or an asterisk (*) to indicate the default handler

Returns

the function associated with oid, if any


Method set_get_oid_callback

void set_get_oid_callback(string oid, function cb)

Description

set the Get request callback function for an Object Identifier

Parameter oid

the string object identifier, such as 1.3.6.1.4.1.132.2 or an asterisk (*) to serve as the handler for all requests for which a handler is specified.

Parameter cb

the function to call when oid is requested by a manager the function should take 2 arguments: a string containing the requested oid and the body of the request as a mapping. The function should return an array containing 3 elements: The first is a boolean indicating success or failure. If success, the next 2 elements should be the SNMP data type of the result followed by the result itself. If failure, the next 2 elements should be the error-status such as Protocols.SNMP.ERROR_TOOBIG and the second is the error-index, if any.

Note

there can be only one callback per object identifier. calling this function more than once with the same oid will result in the new callback replacing the existing one.


Method clear_get_oid_callback

int clear_get_oid_callback(string oid)

Description

clear the Get callback function for an Object Identifier

Parameter oid

the string object identifier, such as 1.3.6.1.4.1.132.2 or an asterisk (*) to indicate the default handler.

Returns

1 if the callback existed, 0 otherwise


Method get_get_oid_callback

void|function get_get_oid_callback(string oid)

Description

get the Get request callback function for an Object Identifier

Parameter oid

the string object identifier, such as 1.3.6.1.4.1.132.2 or an asterisk (*) to indicate the default handler

Returns

the function associated with oid, if any

  CLASS Protocols.SNMP.protocol

Description

SNMP protocol implementation for Pike

RFCs:

implemented (yet): 1155-7 : v1

1901-4 : v2/community (Bulk ops aren't implemented!)

planned: 2742 : agentX

2570 : v3 description


Inherit snmp

inherit Stdio.UDP : snmp


Variable snmp_version

int snmp_version

Description

SNMP version

currently version 1 and 2 are supported.


Variable snmp_community

string snmp_community

Description

SNMP community string

should be set to the appropriate SNMP community before sending a request.

Note

Set to "public" by default.


Method create

void Protocols.SNMP.protocol(int|void rem_port, string|void rem_addr, int|void loc_port, string|void loc_addr)

Description

create a new SNMP protocol object

Parameter rem_port
Parameter rem_addr

remote address and UDP port (optional)

Parameter loc_port
Parameter loc_addr

local address and UDP port (optional)


Method readmsg

mapping readmsg()

Description

return the whole SNMP message in raw format


Method decode_asn1_msg

mapping decode_asn1_msg(mapping rawd)

Description

decode ASN1 data, if garbaged ignore it


Method to_pool

void to_pool(mapping rawd)

Description

decode raw pdu message and place in message pool


Method readmsg_from_pool

mapping readmsg_from_pool(int msgid)

Description

read decoded message from pool


Method get_request

int get_request(array(string) varlist, string|void rem_addr, int|void rem_port)

Description

GetRequest-PDU call

Parameter varlist

an array of OIDs to GET

Parameter rem_addr
Parameter rem_port

remote address an UDP port to send request to (optional)

Returns

request ID


Method get_response

int get_response(mapping varlist, mapping origdata, int|void errcode, int|void erridx)

Description

GetResponse-PDU call

Parameter varlist

a mapping containing data to return

oid1 : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oid1


oid2 : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oid2


oidn : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oidn



Parameter origdata

original received decoded pdu that this response corresponds to

Parameter errcode

error code

Parameter erridx

error index

Returns

request ID


Method get_nextrequest

int get_nextrequest(array(string) varlist, string|void rem_addr, int|void rem_port)

Description

GetNextRequest-PDU call

Parameter varlist

an array of OIDs to GET

Parameter rem_addr
Parameter rem_port

remote address an UDP port to send request to (optional)

Returns

request ID


Method set_request

int set_request(mapping varlist, string|void rem_addr, int|void rem_port)

Description

SetRequest-PDU call

Parameter varlist

a mapping of OIDs to SET

oid1 : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oid1


oid2 : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oid2


oidn : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oidn



Parameter rem_addr
Parameter rem_port

remote address an UDP port to send request to (optional)

Returns

request ID

Example

// set the value of 1.3.6.1.4.1.1882.2.1 to "blah". object s=Protocols.SNMP.protocol(); s->snmp_community="mysetcommunity"; mapping req=(["1.3.6.1.4.1.1882.2.1": ({"str", "blah"})]); int id=s->set_request(req, "172.21.124.32");


Method trap

int trap(mapping varlist, string oid, int type, int spectype, int ticks, string|void locip, string|void remaddr, int|void remport)

Description

send an SNMP-v1 trap

Parameter varlist

a mapping of OIDs to include in trap

oid1 : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oid1


oid2 : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oid2


oidn : array
Array
string type

data type such as tick, oid, gauge, etc

mixed data

data to return for oidn



Parameter oid
Parameter type

generic trap-type

Parameter spectype

specific trap-type

Parameter ticks

uptime

Parameter locip

originating ip address of the trap

Parameter remaddr
Parameter remport

address and UDP to send trap to

Returns

request id

  Module Protocols.X

  Module Protocols.X.Extensions

  CLASS Protocols.X.Extensions.extension

Description

an abstract class used to provide features for implimenting X11 extensions. Provides no useful functionality on its own.


Method init

int init(object d)

Description

initialize the extension.

Parameter d

An object of type Protocols.X.Xlib.Display

  CLASS Protocols.X.Extensions.XTEST

Description

Provides support for the X11 XTEST extension.


Inherit extension

inherit extension : extension


Method create

void Protocols.X.Extensions.XTEST()

Description

Create object.


Method init

int init(object display)

Description

Initialize the XTEST extension. Returns 1 if successful.

Parameter display

Protocols.X.Display object


Method XTestFakeInput

void XTestFakeInput(string event_type, int detail, int delay, object|void window, int|void xloc, int|void yloc)

Description

Send a synthetic event to an X server.

Parameter event_type

Type of event to send. Possible values: KeyPress: 2, KeyRelease: 3, ButtonPress: 4, ButtonRelease: 5, MotionNotify: 6

Parameter detail

Button (for Button events) or Keycode (for Key events) to send

Parameter delay

Delay before the X server simulates event. 0 indicates zero delay.

Parameter window

Window object that a motion event occurrs in. If no window is provided, the root window will be used.

Parameter xloc

For motion events, this is the relative X distance or absolute X coordinates.

Parameter yloc

For motion events, this is the relative Y distance or absolute Y coordinates.


Method XTestGrabControl

void XTestGrabControl(int impervious)

Description

Cause the executing client to become impervious to server grabs. That is, it can continue to execute requests even if another client grabs the server.

Parameter impervious

A true (non zero) value causes the client to perform as described above. If false (zero), server returns to the normal state of being susceptible to server grabs.

  Module Protocols.XMLRPC

Description

This module implements most features of the XML-RPC standard (see http://xml-rpc.org/).

Translation rules for conversions from Pike datatypes to XML-RPC datatypes:

Pike int is translated to XML-RPC <int>. Pike string is translated to XML-RPC <string>. Pike float is translated to XML-RPC <double>. Pike mapping is translated to XML-RPC <struct>. Pike array is translated to XML-RPC <array>.

Translation rules for conversions from XML-RPC datatypes to Pike datatypes:

XML-RPC <i4>, <int> and <boolean> are translated to Pike int. XML-RPC <string> and <base64> are translated to Pike string. XML_RPC <double> is translated to Pike float. XML-RPC <struct> is translated to Pike mapping. XML-RPC <array> is translated to Pike array. XML-RPC <dateTime.iso8601> is translated to Pike Calendar object.

Note

The XML-RPC <dateTime.iso8601> datatype is currently only partially implemented. It is decoded but cannot be encoded. Also, the code here does not assume any particular timezone (which is correct according to the specification). The Calendar module, however, seems to assume localtime.


Method decode_call

Call Protocols.XMLRPC.decode_call(string xml_input)

Description

Decodes a XML-RPC representation of a function call and returns a Call object.

See also

Call


Method decode_response

array|Fault Protocols.XMLRPC.decode_response(string xml_input)

Description

Decodes a XML-RPC representation of a response and returns an array containing response values, or a Fault object.

See also

Fault


Method encode_call

string Protocols.XMLRPC.encode_call(string method_name, array params)

Description

Encodes a function call with the name method_name and the arguments params and returns the XML-RPC string representation.


Method encode_response

string Protocols.XMLRPC.encode_response(array params)

Description

Encodes a response containing the multiple values in params and returns the XML-RPC string representation.


Method encode_response_fault

string Protocols.XMLRPC.encode_response_fault(int fault_code, string fault_string)

Description

Encodes a response fault containing a fault_code and a fault_string and returns the XML-RPC string representation.

  CLASS Protocols.XMLRPC.Call

Description

Represents a function call made to a XML-RPC server.

See also

decode_call()


syntax

string method_name
array paramsvoid Protocols.XMLRPC.Call(string method_name, array params)


Variable method_name

int method_name

Description

Represents <methodName> in the XML-RPC standard.


Variable params

array params

Description

Represents <params> in the XML-RPC standard where all datatypes have been converted to equivalent or similar datatypes in Pike.

  CLASS Protocols.XMLRPC.Fault

Description

Represents a fault response which can be one of the return values from a XML-RPC function call.

See also

decode_response()


syntax

int fault_code
string fault_stringvoid Protocols.XMLRPC.Fault(int fault_code, string fault_string)


Variable fault_code

int fault_code

Description

Represents faultCode in the XML-RPC standard.


Variable fault_string

int fault_string

Description

Represents faultString in the XML-RPC standard.

  CLASS Protocols.XMLRPC.Client

Description

This class implements an XML-RPC client that uses HTTP transport.

Example

   > Protocols.XMLRPC.Client client = Protocols.XMLRPC.Client("http://www.oreillynet.com/meerkat/xml-rpc/server.php");
   Result: Protocols.XMLRPC.Client("http://www.oreillynet.com/meerkat/xml-rpc/server.php");
   > client["system.listMethods"]();
   Result: ({ /* 1 element */
  		    ({ /* 9 elements */
  			"meerkat.getChannels",
  			"meerkat.getCategories",
  			"meerkat.getCategoriesBySubstring",
  			"meerkat.getChannelsByCategory",
  			"meerkat.getChannelsBySubstring",
  			"meerkat.getItems",
  			"system.listMethods",
  			"system.methodHelp",
  			"system.methodSignature"
  		    })
  		})
 


syntax

string|Standards.URI urlvoid Protocols.XMLRPC.Client(string|Standards.URI url)

  Module Protocols.Bittorrent

  CLASS Protocols.Bittorrent.Peer


Method is_connectable

int is_connectable()

Description

Returns true if we can connect to this peer, when new or disconnected but not fatally.


Method is_online

int is_online()

Description

Returns true if this peer is online and connected.


Method is_completed

int is_completed()

Description

Returns true if this peer is completed, as in has downloaded everything already - and we shouldn't need to upload to get stuff.


Method is_available

int is_available()

Description

Returns true if this peer is available, as in we can use it to download stuff.


Method is_activated

int is_activated()

Description

Returns true if this peer is activated, as in we're downloading from it.


Method is_strangled

int is_strangled()

Description

Returns true if this peer is strangled; as in we don't want to upload more, because we're not getting any back.


Method is_choked

int is_choked()

Description

Returns true if this peer is choking, as in doesn't send more data to us.


Method downloading_pieces

multiset(int) downloading_pieces()

Description

Returns as multiset what this peer is downloading.


Method connect

void connect()

Description

Connect to the peer; this is done async. status/mode will change from "connecting" to "dead" or to "connected" depending on result. Will throw error if already online.

Upon connect, protocol will be initiated in choked mode. When the protocol is up, status will change to "online" (or "failed" if the handshake failed).


Method disconnect

void disconnect()

Description

Disconnect a peer. Does nothing if we aren't online. status/mode will change to "disconnected",1 if we were online.


Method send_have

void send_have(int n)

Description

Send a have message to tell I now have piece n. Ignored if not online.


Method request

void request(int piece, int offset, int bytes, function(int:void|mixed) callback)

Description

Called to request a chunk from this peer.


Method status

void status(string type, void|int|string data)

Description

Called whenever there is a status change for this peer. Always called with "created" when the object is created.

Does not need to call inherited function.

  CLASS Protocols.Bittorrent.Torrent

Description

Bittorrent peer - download and share. Read more about bittorrent at http://bitconjurer.org/BitTorrent/introduction.html

Example

The smallest usable torrent downloader. As first argument, it expects a filename to a .torrent file.

int main(int ac,array am) { // initialize Torrent from file: Protocols.Bittorrent.Torrent t=Protocols.Bittorrent.Torrent(); t->load_metainfo(am[1]);

// Callback when download status changes: // t->downloads_update_status=...;

// Callback when pieces status change (when we get new stuff): // t->pieces_update_status=...;

// Callback when peer status changes (connect, disconnect, choked...): // t->peer_update_status=...;

// Callback when download is completed: t->download_completed_callback= lambda() { call_out(exit,3600,0); // share for an hour, then exit };

// Callback to print warnings (same args as sprintf): // t->warning=werror;

// type of progress function used below: void progress(int n,int of) { /* ... */ };

// Initiate targets from Torrent, // if target was created, no need to verify: if (t->fix_targets(1,0,progress)==1) t->verify_targets(progress);

// Open port to listen on, // we want to do this to be able to talk to firewalled peers: t->my_port=6881; t->open_port();

// Ok, start calling tracker to get peers, // and tell about us: t->start_update_tracker();

// Finally, start the download: t->start_download();

return -1; }



Variable do_we_strangle

function(.Peer:int(0..1)) do_we_strangle

Description

Function to determine if we should strangle this peer. Default is to allow 100000 bytes of data over the ratio, which is 2:1 per default; upload twice as much as we get.

Arguments are the peer, bytes in (downloaded) and bytes out (uploaded). Return 1 to strangle and 0 to allow the peer to proceed downloading again.


Variable pieces_update_status

function pieces_update_status

Description

If set, called when we got another piece downloaded (no args).


Variable downloads_update_status

function downloads_update_status

Description

If set, called when we start to download another piece (no args).


Variable peer_update_status

function peer_update_status

Description

If set, called when peer status changes.


Variable download_completed_callback

function download_completed_callback

Description

If set, called when download is completed.


Variable warning

function(string:void|mixed) warning

Description

Called if there is a protocol error.


Method load_metainfo

void load_metainfo(string filename)

Description

Loads the metainfo from a file.


Method fix_targets

int fix_targets(void|int(-1..2) allocate, void|string base_filename, void|function(int:void) progress_callback)

Description

Opens target datafile(s).

If all files are created, the verify info will be filled as well, but if it isn't created, a call to verify_target() is necessary after this call.

Parameter allocate

Determines allocation procedure if the file doesn't exist:

0

Don't allocate.

1

Allocate virtual file size (seek, write end byte).

2

Allocate for real (will call progress_callback(pos,length)).

-1

Means never create a file, only open old files.


Parameter my_filename

A new base filename to substitute the metainfo base target filename with.

Returns
1

The (a) file was already there.

2

All target files were created.



Method verify_targets

void verify_targets(void|function(int:void) progress_callback)

Description

Verify the file and fill file_got (necessary after load_info, but needs open_file before this call). [ progress_callback(at chunk,total chunks) ]


Method open_port

void open_port()

Description

Open the port we're listening on.


Method bytes_done

int bytes_done()

Description

Calculate the bytes successfully downloaded (full pieces).


Method bytes_left

int bytes_left()

Description

Calculate the bytes left to download.


Method update_tracker

void update_tracker(void|string event, void|int contact)

Description

Contact and update the tracker with current status will fill the peer list.


Method start_update_tracker

void start_update_tracker(void|int interval)

Description

Starts to contact the tracker at regular intervals, giving it the status and recieving more peers to talk to. Will also contact these peers. The default interval is 5 minutes. If given an event, will update tracker with it.


Method stop_update_tracker

void stop_update_tracker(void|string event)

Description

Stops updating the tracker; will send the event as a last event, if set. It will not contact new peers.


Method contact_peers

void contact_peers(void|int n)

Description

Contact all or n peers.


Method file_got_bitfield

string file_got_bitfield()

Description

Returns the file got field as a string bitfield (cached).


Method start_download

void start_download()

Description

Initiate the downloading scheme.

  CLASS Protocols.Bittorrent.Torrent.Target

Description

Each bittorrent has one or more target files. This represents one of those.


syntax

string base
int length
int offset
void|array pathvoid Protocols.Bittorrent.Torrent.Target(string base, int length, int offset, void|array path)

  CLASS Protocols.Bittorrent.Generator

Description

Generate a .torrent binary string from files in the filesystem

Example

// usage: thisprogram [<file/dir>] [<file/dir>...] <target .torrent> int main(int ac,array am) { Generator g=Generator(); foreach (am[1..sizeof(am)-2];;string f) g->add(f);

string dest=am[-1]; if (-1==search(dest,"torrent")) dest+=".torrent";

Stdio.write_file(dest,g->digest()); return 0; }


Inherit Torrent

inherit .Torrent : Torrent


Method create

void Protocols.Bittorrent.Generator(void|string base, void|int piece_size)

Description

Create a generator.

Parameter base

The base filename/path in the torrent.

Parameter piece_size

The size of the pieces that the SHA hashes are calculated on. Default 262144 and this value should probably be 2^n.


Method add_announce

this_program add_announce(string|array(string) announce_url)

Description

Add one or multiple announcers (trackers). This is needed to get a valid .torrent file. If this is called more then once, more announcers (trackers) will be added with lower priority.


Method add_file

this_program add_file(string path, void|string filename)

Description

Add a file to the torrent. The second argument is what the file will be called in the torrent.


Method add_directory_tree

this_program add_directory_tree(string path, void|string dirbase)

Description

Add a directory tree to the torrent. The second argument is what the directory will be called in the torrent. This will call add_file on all non-directories in the tree.


Method add

this_program add(string path, void|string base)

Description

Add a file, or a directory tree to the torrent. This will call add_directory_tree or add_file.


Method build_sha1s

void build_sha1s(void|function(int:void) progress_callback)

Description

Build the SHA hashes from the files.


Method digest

string digest(void|function(int:void) progress_callback)

Description

Finally make a torrent string out of this information. Will call build_sha1's if the sha1's aren't generated already.

progress_callback is called with (pos,of) arguments, similar to Torrent.verify_targets .

  CLASS Protocols.Bittorrent.Port


Method create

void Protocols.Bittorrent.Port(.Torrent _parent)

Description

Bind a port for this Torrent.

  Module Protocols.Bittorrent.Bencoding


Method _decode

array(string|int|array|mapping) Protocols.Bittorrent.Bencoding._decode(string what)

Description

Decodes a Bittorrent bencoded data chunk.

Returns
Array
string|int|array|mapping data

The decoded data. UNDEFINED if no data could be decoded.

string remainder

The trailing data that wasn't decoded.



Method decode

string|int|array|mapping Protocols.Bittorrent.Bencoding.decode(string what)

Description

Decodes a Bittorrent bencoded data chunk and ignores the remaining string. Returns UNDEFINED if the data is incomplete.


Method encode

string Protocols.Bittorrent.Bencoding.encode(string|int|array|mapping data)

Description

Encodes a Bittorrent bencoded data chunk.


Method bits2string

string Protocols.Bittorrent.Bencoding.bits2string(array(int(0..1)) v)

Description

Convert an array of int(0..1) to a Bittorrent style bitstring. Input will be padded to even bytes.


Method string2bits

array(int(0..1)) Protocols.Bittorrent.Bencoding.string2bits(string s)

Description

Convert a Bittorrent style bitstring to an array of int(0..1).


Method string2arr

array(int) Protocols.Bittorrent.Bencoding.string2arr(string s)

Description

Convert a Bittorrent style bitstring to an array of indices.

  Module Protocols.Ident

Description

An implementation of the IDENT protocol, specified in RFC 931.


Method lookup

array(string) Protocols.Ident.lookup(object fd)

Throws

Throws exception upon any error.

  CLASS Protocols.Ident.AsyncLookup


Method create

void Protocols.Ident.AsyncLookup(object fd, function(array(string):void) cb, mixed ... args)

  Module Protocols.LMTP

  CLASS Protocols.LMTP.Server

Description

A LMTP server. It has been fairly well tested against Postfix client. Actually this module is only an extention to the SMTP server.


Method create

void Protocols.LMTP.Server(array(string) _domains, void|int port, void|string ip, function _cb_mailfrom, function _cb_rcptto, function _cb_data)

Description

Create a receiving LMTP server. It implements RFC 2821, 2822, 2033 and 1854.

Parameter domain

Domains name this server relay, you need to provide at least one domain (the first one will be used for MAILER-DAEMON address). if you want to relay everything you can put a '*' after this first domain.

Parameter port

Port this server listen on

Parameter listenip

IP on which server listen

Parameter cb_mailfrom

Mailfrom callback function, this function will be called when a client send a mail from command. This function must take a string as argument (corresponding to the sender's email) and return int corresponding to the SMTP code to output to the client. If you return an array the first element is the SMTP code and the second is the error string to display.

Parameter cb_rcptto

Same as cb_mailfrom but called when a client sends a rcpt to.

Parameter cb_data

This function is called for each recipient in the "rcpt to" command after the client sends the "data" command It must have the following synopsis: int|array cb_data(object mime, string sender, array(string) recipients, void|string rawdata) object mime : the mime data object string sender : sender of the mail (from the mailfrom command) string recipient : one recipient given by one rcpt command. return : SMTP code to output to the client. If you return an array the first element is the SMTP code and the second is the error string to display. Note that to comply with LMTP protocol you must output a code each time this function is called.

Example

Here is an example of silly program that does nothing except outputing informations to stdout. int cb_mailfrom(string mail) { return 250; }

int cb_rcptto(string email) { // check the user's mailbox here return 250; }

int cb_data(object mime, string sender, array(string) recipients) { write(sprintf("smtpd: mailfrom=%s, to=%s, headers=%O\ndata=%s\n", sender, recipients * ", ", mime->headers, mime->getdata())); // check the data and deliver the mail here if(mime->body_parts) { { foreach(mime->body_parts, object mpart) write(sprintf("smtpd: mpart data = %O\n", mpart->getdata())); } return 250; }

int main(int argc, array(string) argv) { Protocols.LMTP.Server(({ "ece.fr" }), 2500, "127.0.0.1", cb_mailfrom, cb_rcptto, cb_data); return -1; }

  Module Protocols.LPD

  CLASS Protocols.LPD.client

Description

A client for communicating with printers and print spoolers that support the BSD lpd protocol (RFC 1179).


Method set_job_type

int set_job_type(string type)

Description

Set the type of job to be sent to the printer to type. Valid types are: text, postscript and raw.


Method set_job_name

int set_job_name(string name)

Description

Sets the name of the print job to name.


Method start_queue

int start_queue(string queue)

Description

Start the queue queue if not already printing.

Returns

Returns 0 if unable to connect, 1 otherwise.


Method send_job

string|int send_job(string queue, string job)

Description

Send print job consisting of data job to printer queue.

Returns

Returns 1 if success, 0 otherwise.


Method delete_job

int delete_job(string queue, int|void job)

Description

Delete job job from printer queue.

Returns

Returns 1 on success, 0 otherwise.


Method status

string|int status(string queue)

Description

Check the status of queue queue.

Returns

Returns 0 on failure, otherwise returns the status response from the printer.


Method create

void Protocols.LPD.client(string|void hostname, int|void portnum)

Description

Create a new LPD client connection.

Parameter hostname

Contains the hostname or ipaddress of the print host. if not provided, defaults to localhost.

Parameter portnum

Contains the port the print host is listening on. if not provided, defaults to port 515, the RFC 1179 standard.

  Module Protocols.Line

  CLASS Protocols.Line.simple

Description

Simple nonblocking line-oriented I/O.


Constant line_separator

constant line_separator

Description

The sequence separating lines from eachother. "\r\n" by default.


Variable handle_data

function(string:void) handle_data

Description

If this variable has been set, multiple lines will be accumulated, until a line with a single "." (period) is received. handle_data() will then be called with the accumulated data as the argument.

Note

handle_data() is one-shot, ie it will be cleared when it is called.

The line with the single "." (period) will not be in the accumulated data.

See also

handle_command()


Method handle_command

void handle_command(string line)

Description

This function will be called once for every line that is received.

Overload this function as appropriate.

Note

It will not be called if handle_data() has been set.

line will not contain the line separator.

See also

handle_data()


Method send

void send(string s)

Description

Queue some data to send.

See also

handle_command() , handle_data() , disconnect()


Method do_timeout

void do_timeout()

Description

This function is called when a timeout occurrs.

Overload this function as appropriate.

The default action is to shut down the connection immediately.

See also

create() , touch_time()


Method touch_time

void touch_time()

Description

Reset the timeout timer.

See also

create() , do_timeout()


Method read_line

string read_line()

Description

Read a line from the input.

Returns

Returns 0 when more input is needed. Returns the requested line otherwise.

Note

The returned line will not contain the line separator.

See also

handle_command() , line_separator


Method read_callback

void read_callback(mixed ignored, string data)

Description

Called when data has been received.

Overload as appropriate.

Calls the handle callbacks repeatedly until no more lines are available.

See also

handle_data() , handle_command() , read_line()


Variable send_q

ADT.Queue send_q

Description

Queue of data that is pending to send.

The elements in the queue are either strings with data to send, or 0 (zero) which is the end of file marker. The connection will be closed when the end of file marker is reached.

See also

send() , disconnect()


Method disconnect

void disconnect()

Description

Disconnect the connection.

Pushes an end of file marker onto the send queue send_q .

Note

Note that the actual closing of the connection is delayed until all data in the send queue has been sent.

No more data will be read from the other end after this function has been called.


Method close_callback

void close_callback()

Description

This function is called when the connection has been closed at the other end.

Overload this function as appropriate.

The default action is to shut down the connection on this side as well.


Method create

void Protocols.Line.simple(Stdio.File con, int|void timeout)

Description

Create a simple nonblocking line-based protocol handler.

con is the connection.

timeout is an optional timeout in seconds after which the connection will be closed if there has been no data sent or received.

If timeout is 0 (zero), no timeout will be in effect.

See also

touch_time() , do_timeout()

  CLASS Protocols.Line.smtp_style

Description

Nonblocking line-oriented I/O with support for sending SMTP-style codes.


Inherit simple

inherit simple : simple


Variable errorcodes

mapping(int:string|array(string)) errorcodes

Description

Mapping from return-code to error-message.

Overload this constant as apropriate.


Method send

void send(int(100..999) code, array(string)|string|void lines)

Description

Send an SMTP-style return-code.

code is an SMTP-style return-code.

If lines is omitted, errorcodes will be used to lookup an appropriate error-message.

If lines is a string, it will be split on "\n" (newline), and the error-code interspersed as appropriate.

See also

errorcodes

  CLASS Protocols.Line.imap_style

Description

Nonblocking line-oriented I/O with support for reading literals.


Inherit simple

inherit simple : simple


Variable literal_length

int literal_length

Description

Length in bytes of the literal to read.


Variable handle_literal

function(string:void) handle_literal

Description

If this variable has been set, literal_length bytes will be accumulated, and this function will be called with the resulting data.

Note

handle_literal() is one-shot, ie it will be cleared when it is called.


Variable handle_line

function(string:void) handle_line

Description

This function will be called once for every line that is received.

Note

This API is provided for backward compatibility; overload handle_command() instead.

See also

Protocols.Line.simple()->handle_command()


Method handle_command

void handle_command(string line)

Description

Function called once for every received line.


Method expect_literal

void expect_literal(int length, function(string:void) callback)

Description

Enter literal reading mode.

Sets literal_length and handle_literal() .

See also

literal_length , handle_literal()

  Module Protocols.NNTP

  CLASS Protocols.NNTP.protocol

Description

NNTP protocol


Inherit sock

inherit Stdio.FILE : sock


Method readreturncode

int readreturncode()

Description

reads the server result code for last request used internally by command().


Method read_body_lines

array(string) read_body_lines()

Description

reads the message from the server as an array of lines


Method readreturnbody

string readreturnbody()

Description

reads the message from the server


Method writebody

void writebody(string s)

Description

send the body of a message to the server.


Method command

int command(string cmd)

Description

send a command to the server

Returns

the result code sent by the server


Method get_response_message

string get_response_message()

Description

gets the result message supplied by the server for the last response


Method failsafe_command

int failsafe_command(string cmd)

Description

send a command and require an ok response (200 series). throws an error if the command result was not success.


Method do_cmd_with_body

string do_cmd_with_body(string cmd)

Description

send a command that should return a message body.

Returns

the message body

  CLASS Protocols.NNTP.client

Description

An NNTP client


Inherit protocol

inherit protocol : protocol


Method list_groups

array(Group) list_groups()

Description

Returns a list of all active groups.


Variable current_group

Group current_group

Description

The current news group.


Method set_group

void set_group(Group o)

Description

Sets the current news group to o .


Method go_to_group

Group go_to_group(string group)

Description

Sets the current group to group .


Method head

string head(void|int|string x)


Method body

string body(void|int|string x)


Method article

string article(void|int|string x)


Method create

void Protocols.NNTP.client(string|void server)

  Module Protocols.TELNET

Description

Implements TELNET as described by RFC 764 and RFC 854

Also implements the Q method of TELNET option negotiation as specified by RFC 1143.


Inherit TelnetCodes

inherit TelnetCodes : TelnetCodes


Inherit Telopts

inherit Telopts : Telopts


Constant TELQUAL_IS

constant Protocols.TELNET.TELQUAL_IS

Description

option is...


Constant TELQUAL_SEND

constant Protocols.TELNET.TELQUAL_SEND

Description

send option


Constant TELQUAL_INFO

constant Protocols.TELNET.TELQUAL_INFO

Description

ENVIRON: informational version of IS


Constant TELQUAL_REPLY

constant Protocols.TELNET.TELQUAL_REPLY

Description

AUTHENTICATION: client version of IS


Constant TELQUAL_NAME

constant Protocols.TELNET.TELQUAL_NAME

Description

AUTHENTICATION: client version of IS


Constant LFLOW_OFF

constant Protocols.TELNET.LFLOW_OFF

Description

Disable remote flow control


Constant LFLOW_ON

constant Protocols.TELNET.LFLOW_ON

Description

Enable remote flow control


Constant LFLOW_RESTART_ANY

constant Protocols.TELNET.LFLOW_RESTART_ANY

Description

Restart output on any char


Constant LFLOW_RESTART_XON

constant Protocols.TELNET.LFLOW_RESTART_XON

Description

Restart output only on XON


Constant AUTH_WHO_CLIENT

constant Protocols.TELNET.AUTH_WHO_CLIENT

Description

Client authenticating server


Constant AUTH_WHO_SERVER

constant Protocols.TELNET.AUTH_WHO_SERVER

Description

Server authenticating client

  CLASS Protocols.TELNET.TelnetCodes

Description

Table of IAC-codes.


Constant IAC

constant IAC

Description

interpret as command.


Constant DONT

constant DONT

Description

you are not to use option


Constant DO

constant DO

Description

please, you use option


Constant WONT

constant WONT

Description

I won't use option


Constant WILL

constant WILL

Description

I will use option


Constant SB

constant SB

Description

interpret as subnegotiation


Constant GA

constant GA

Description

you may reverse the line


Constant EL

constant EL

Description

erase the current line


Constant EC

constant EC

Description

erase the current character


Constant AYT

constant AYT

Description

are you there


Constant AO

constant AO

Description

abort output--but let prog finish


Constant IP

constant IP

Description

interrupt process--permanently


Constant BREAK

constant BREAK

Description

break


Constant DM

constant DM

Description

data mark--for connect. cleaning


Constant NOP

constant NOP

Description

nop


Constant SE

constant SE

Description

end sub negotiation


Constant EOR

constant EOR

Description

end of record (transparent mode)


Constant ABORT

constant ABORT

Description

Abort process


Constant SUSP

constant SUSP

Description

Suspend process


Constant xEOF

constant xEOF

Description

End of file: EOF is already used...


Constant SYNCH

constant SYNCH

Description

for telfunc calls

  CLASS Protocols.TELNET.Telopts

Description

Table of TELNET options.


Constant TELOPT_BINARY

constant TELOPT_BINARY

Description

8-bit data path


Constant TELOPT_ECHO

constant TELOPT_ECHO

Description

echo


Constant TELOPT_RCP

constant TELOPT_RCP

Description

prepare to reconnect


Constant TELOPT_SGA

constant TELOPT_SGA

Description

suppress go ahead


Constant TELOPT_NAMS

constant TELOPT_NAMS

Description

approximate message size


Constant TELOPT_STATUS

constant TELOPT_STATUS

Description

give status


Constant TELOPT_TM

constant TELOPT_TM

Description

timing mark


Constant TELOPT_RCTE

constant TELOPT_RCTE

Description

remote controlled transmission and echo


Constant TELOPT_NAOL

constant TELOPT_NAOL

Description

negotiate about output line width


Constant TELOPT_NAOP

constant TELOPT_NAOP

Description

negotiate about output page size


Constant TELOPT_NAOCRD

constant TELOPT_NAOCRD

Description

negotiate about CR disposition


Constant TELOPT_NAOHTS

constant TELOPT_NAOHTS

Description

negotiate about horizontal tabstops


Constant TELOPT_NAOHTD

constant TELOPT_NAOHTD

Description

negotiate about horizontal tab disposition


Constant TELOPT_NAOFFD

constant TELOPT_NAOFFD

Description

negotiate about formfeed disposition


Constant TELOPT_NAOVTS

constant TELOPT_NAOVTS

Description

negotiate about vertical tab stops


Constant TELOPT_NAOVTD

constant TELOPT_NAOVTD

Description

negotiate about vertical tab disposition


Constant TELOPT_NAOLFD

constant TELOPT_NAOLFD

Description

negotiate about output LF disposition


Constant TELOPT_XASCII

constant TELOPT_XASCII

Description

extended ascic character set


Constant TELOPT_LOGOUT

constant TELOPT_LOGOUT

Description

force logout


Constant TELOPT_BM

constant TELOPT_BM

Description

byte macro


Constant TELOPT_DET

constant TELOPT_DET

Description

data entry terminal


Constant TELOPT_SUPDUP

constant TELOPT_SUPDUP

Description

supdup protocol


Constant TELOPT_SUPDUPOUTPUT

constant TELOPT_SUPDUPOUTPUT

Description

supdup output


Constant TELOPT_SNDLOC

constant TELOPT_SNDLOC

Description

send location


Constant TELOPT_TTYPE

constant TELOPT_TTYPE

Description

terminal type


Constant TELOPT_EOR

constant TELOPT_EOR

Description

end or record


Constant TELOPT_TUID

constant TELOPT_TUID

Description

TACACS user identification


Constant TELOPT_OUTMRK

constant TELOPT_OUTMRK

Description

output marking


Constant TELOPT_TTYLOC

constant TELOPT_TTYLOC

Description

terminal location number


Constant TELOPT_3270REGIME

constant TELOPT_3270REGIME

Description

3270 regime


Constant TELOPT_X3PAD

constant TELOPT_X3PAD

Description

X.3 PAD


Constant TELOPT_NAWS

constant TELOPT_NAWS

Description

window size


Constant TELOPT_TSPEED

constant TELOPT_TSPEED

Description

terminal speed


Constant TELOPT_LFLOW

constant TELOPT_LFLOW

Description

remote flow control


Constant TELOPT_LINEMODE

constant TELOPT_LINEMODE

Description

Linemode option


Constant TELOPT_XDISPLOC

constant TELOPT_XDISPLOC

Description

X Display Location


Constant TELOPT_OLD_ENVIRON

constant TELOPT_OLD_ENVIRON

Description

Old - Environment variables


Constant TELOPT_AUTHENTICATION

constant TELOPT_AUTHENTICATION

Description

Authenticate


Constant TELOPT_ENCRYPT

constant TELOPT_ENCRYPT

Description

Encryption option


Constant TELOPT_NEW_ENVIRON

constant TELOPT_NEW_ENVIRON

Description

New - Environment variables


Constant TELOPT_EXOPL

constant TELOPT_EXOPL

Description

extended-options-list

  CLASS Protocols.TELNET.protocol

Description

Implementation of the TELNET protocol.


Variable fd

static object fd

Description

The connection.


Variable cb

static mapping cb

Description

Mapping containing extra callbacks.


Variable id

static mixed id

Description

Value to send to the callbacks.


Variable write_cb

static function(mixed|void:string) write_cb

Description

Write callback.


Variable read_cb

static function(mixed:void) read_cb

Description

Read callback.


Variable close_cb

static function(mixed|void:void) close_cb

Description

Close callback.


static array(int) remote_options
static array(int) local_options

Description

Negotiation states of all WILL/WON'T options. See RFC 1143 for a description of the states.


Variable to_send

static string to_send

Description

Data queued to be sent.


Variable done

static int done

Description

Indicates that connection should be closed


Variable nonblocking_write

static int nonblocking_write

Description

Tells if we have set the nonblocking write callback or not.


Method enable_write

void enable_write()

Description

Turns on the write callback if apropriate.


Method disable_write

void disable_write()

Description

Turns off the write callback if apropriate.


Method write

void write(string s)

Description

Queues data to be sent to the other end of the connection.

Parameter s

String to send.


Method write_raw

void write_raw(string s)

Description

Queues raw data to be sent to the other end of the connection.

Parameter s

String with raw telnet data to send.


Method close

void close()

Description

Closes the connetion neatly


Method send_data

void send_data()

Description

Callback called when it is clear to send data over the connection. This function does the actual sending.


Method send_synch

void send_synch()

Description

Sends a TELNET synch command.


Method send_DO

void send_DO(int option)

Description

Starts negotiation to enable a TELNET option.

Parameter option

The option to enable.


Method send_DONT

void send_DONT(int option)

Description

Starts negotiation to disable a TELNET option.

Parameter option

The option to disable.


Variable synch

static int synch

Description

Indicates whether we are in synch-mode or not.


Method got_oob

void got_oob(mixed ignored, string s)

Description

Callback called when Out-Of-Band data has been received.

Parameter ignored

The id from the connection.

Parameter s

The Out-Of-Band data received.


Method call_read_cb

void call_read_cb(string data)

Description

Calls read_cb() .

Specifically provided for overloading


Method got_data

void got_data(mixed ignored, string line)

Description

Callback called when normal data has been received. This function also does most of the TELNET protocol parsing.

Parameter ignored

The id from the connection.

Parameter s

The received data.


Method set_write_callback

void set_write_callback(function(mixed|void:string) w_cb)

Description

Sets the callback to be called when it is clear to send.

Parameter w_cb

The new write callback.


Method setup

void setup()

Description

Called when the initial setup is done.

Created specifically for overloading


Method create

void Protocols.TELNET.protocol(object f, function(mixed:void) r_cb, function(mixed|void:string) w_cb, function(mixed|void:void) c_cb, mapping callbacks, mixed|void new_id)

Description

Creates a TELNET protocol handler, and sets its callbacks.

Parameter f

File to use for the connection.

Parameter r_cb

Function to call when data has arrived.

Parameter w_cb

Function to call when data can be sent.

Parameter c_cb

Function to call when the connection is closed.

Parameter callbacks

Mapping with callbacks for the various TELNET commands.

Parameter new_id

Value to send to the various callbacks.

  CLASS Protocols.TELNET.LineMode

Description

Line-oriented TELNET protocol handler.


Inherit protocol

inherit protocol : protocol

  CLASS Protocols.TELNET.Readline

Description

Line-oriented TELNET protocol handler with Stdio.Readline support.


Inherit LineMode

inherit LineMode : LineMode

  Module Protocols.OBEX

Description

The IrDAŽ Object Exchange Protocol. OBEX is a protocol for sending and receiving binary objects to mobile devices using transports such as IR and Bluetooth.


Constant SETPATH_BACKUP

constant Protocols.OBEX.SETPATH_BACKUP

Description

A flag for the REQ_SETPATH command indicating that the parent directory should be selected


Constant SETPATH_NOCREATE

constant Protocols.OBEX.SETPATH_NOCREATE

Description

A flag for the REQ_SETPATH command indicating that the selected directory should not be created if it doesn't exist


Typedef Headers

typedef mapping(HeaderIdentifier:string|int|array) Protocols.OBEX.Headers

Description

A set of request or response headers. Each HI can be associated with either a single value (int or string, depending on the HI in question) or an array with multiple such values.


Method encode_headers

string Protocols.OBEX.encode_headers(Headers h)

Description

Serialize a set of headers to wire format

See also

split_headers()


Method decode_headers

Headers Protocols.OBEX.decode_headers(string h)

Description

Deserialize a set of headers from wire format


Method split_headers

array(string) Protocols.OBEX.split_headers(string h, int chunklen)

Description

Given a set of headers in wire format, divide them into portions of no more than chunklen octets each (if possible). No individual header definition will be split into two portions.

  ENUM Protocols.OBEX.Request

Description

A request opcode, for use with the client.do_request() function.


Constant REQ_CONNECT

constant Protocols.OBEX.REQ_CONNECT

Description

Establish a new OBEX connection


Constant REQ_DISCONNECT

constant Protocols.OBEX.REQ_DISCONNECT

Description

Terminate an OBEX connection


Constant REQ_PUT

constant Protocols.OBEX.REQ_PUT

Description

Send an object to the mobile device


Constant REQ_GET

constant Protocols.OBEX.REQ_GET

Description

Receive an object from the mobile devuce


Constant REQ_SETPATH

constant Protocols.OBEX.REQ_SETPATH

Description

Change the working directory


Constant REQ_SESSION

constant Protocols.OBEX.REQ_SESSION

Description

Manage a session


Constant REQ_ABORT

constant Protocols.OBEX.REQ_ABORT

Description

Abort the request currently being processed


Constant REQ_FINAL

constant Protocols.OBEX.REQ_FINAL

Description

For REQ_PUT and REQ_GET requests, REQ_FINAL must be set for the request block containing the last portion of the headers. Other requests must be sent as a single block and have the REQ_FINAL bit encoded in their request opcode.

  ENUM Protocols.OBEX.HeaderIdentifier

Description

An identifier for a request or response header


Constant HI_COUNT

constant Protocols.OBEX.HI_COUNT

Description

Number of objects to transfer (used by REQ_CONNECT )


Constant HI_NAME

constant Protocols.OBEX.HI_NAME

Description

Name of the object (string)


Constant HI_TYPE

constant Protocols.OBEX.HI_TYPE

Description

Type of the object (IANA media type)


Constant HI_LENGTH

constant Protocols.OBEX.HI_LENGTH

Description

Length of the object transferred, in octets


Constant HI_TIME

constant Protocols.OBEX.HI_TIME

Description

ISO 8601 timestamp (string)


Constant HI_DESCRIPTION

constant Protocols.OBEX.HI_DESCRIPTION

Description

Text description of the object


Constant HI_TARGET

constant Protocols.OBEX.HI_TARGET

Description

Name of service that operation is targeted to


Constant HI_HTTP

constant Protocols.OBEX.HI_HTTP

Description

Any HTTP 1.x header


Constant HI_BODY

constant Protocols.OBEX.HI_BODY

Description

A chunk of the object body


Constant HI_ENDOFBODY

constant Protocols.OBEX.HI_ENDOFBODY

Description

The final chunk of the object body


Constant HI_WHO

constant Protocols.OBEX.HI_WHO

Description

Identifies the OBEX application (string)


Constant HI_CONNID

constant Protocols.OBEX.HI_CONNID

Description

An identifier used for OBEX connection multiplexing


Constant HI_APPPARAM

constant Protocols.OBEX.HI_APPPARAM

Description

Extended application request & response information


Constant HI_AUTHCHALL

constant Protocols.OBEX.HI_AUTHCHALL

Description

Authentication digest-challenge


Constant HI_AUTHRESP

constant Protocols.OBEX.HI_AUTHRESP

Description

Authentication digest-response


Constant HI_CREATORID

constant Protocols.OBEX.HI_CREATORID

Description

Indicates the creator of an object


Constant HI_WANUUID

constant Protocols.OBEX.HI_WANUUID

Description

Uniquely identifies the OBEX server


Constant HI_OBJCLASS

constant Protocols.OBEX.HI_OBJCLASS

Description

OBEX object class of object


Constant HI_SESSPARAM

constant Protocols.OBEX.HI_SESSPARAM

Description

Parameters used in session commands/responses


Constant HI_SESSSEQNR

constant Protocols.OBEX.HI_SESSSEQNR

Description

Sequence number used in each OBEX packet for reliability

  CLASS Protocols.OBEX.Client

Description

An OBEX client

See also

ATclient


Method low_do_request

array(int|string) low_do_request(Request r, string data)

Description

Perform a request/response exchange with the server. No interpretation is preformed of either the request or response data, they are just passed literally.

Parameter r

Request opcode

Parameter data

Raw request data

Returns

An array with the response information

Array
int returncode

An HTTP response code

string data

Response data, if any


See also

do_request()


Method do_request

array(int|Headers) do_request(Request r, Headers|void headers, string|void extra_req)

Description

Perform a request/response exchange with the server, including processing of headers and request splitting.

Parameter r

Request opcode

Parameter headers

Request headers

Parameter extra_req

Any request data that should appear before the headers, but after the opcode

Returns

An array with the response information

Array
int returncode

An HTTP response code

Headers headers

Response headers


See also

low_do_request() , do_abort() , do_put() , do_get() , do_setpath() , do_session()


Method do_abort

array(int|Headers) do_abort(Headers|void headers)

Description

Perform a REQ_ABORT request.

See also

do_request()


Method do_put

array(int|Headers) do_put(string|Stdio.Stream data, Headers|void extra_headers)

Description

Perform a REQ_PUT request.

Parameter data

Body data to send, or a stream to read the data from

Parameter extra_headers

Any additional headers to send (HI_LENGTH and HI_BODY are generated by this function)

See also

do_get() , do_request()


Method do_get

array(int|Headers) do_get(Stdio.Stream data, Headers|void headers)

Description

Perform a REQ_GET request.

Parameter data

A stream to write the body data to

Parameter headers

Headers for the request

Returns

See do_request() . The Headers do not contain any HI_BODY headers, they are written to the data stream.

See also

do_put() , do_request()


Method do_setpath

array(int|Headers) do_setpath(string path, int|void flags, Headers|void extra_headers)

Description

Perform a REQ_SETPATH request.

Parameter path

The directory to set as current working directory

"/"

Go to the root directory

".."

Go to the parent directory


Parameter flags

Logical or of zero or more of SETPATH_BACKUP and SETPATH_NOCREATE

Parameter extra_headers

Any additional request headers (the HI_NAME header is generated by this function)

See also

do_request()


Method do_session

array(int|Headers) do_session(Headers|void headers)

Description

Perform a REQ_SESSION request.

See also

do_request()


Method connect

int(0..1) connect()

Description

Establish a new connection using the REQ_CONNECT opcode to negotiate transfer parameters

Returns

If the connection succeeds, 1 is returned. Otherwise, 0 is returned.


Method disconnect

int(0..1) disconnect()

Description

Terminate a connection using the REQ_DISCONNECT opcode

Returns

If the disconnection succeeds, 1 is returned. Otherwise, 0 is returned.


Method create

void Protocols.OBEX.Client(Stdio.Stream _con)

Description

Initialize the client by establishing a connection to the server at the other end of the provided transport stream

Parameter _con

A stream for writing requests and reading back responses. Typically this is some kind of serial port.

  CLASS Protocols.OBEX.ATClient

Description

An extension of the client which uses the AT*EOBEX modem command to enter OBEX mode. Use together with Sony Ericsson data cables.


Inherit Client

inherit Client : Client