Table of Contents
List of Tables
List of Examples
This module provides a function to answer OPTIONS requests which are directed to the server itself. This means an OPTIONS request which has the address of the server in the request URI, and no username in the URI. The request will be answered with a 200 OK which the capabilities of the server.
To answer OPTIONS request directed to your server is the easiest way for is-alive-tests on the SIP (application) layer from remote (similar to ICMP echo requests, also known as “ping”, on the network layer).
The following modules must be loaded before this module:
sl -- Stateless replies.
signaling -- Stateless replies.
This parameter is the content of the Accept header field. If “”, the header is not added in the reply. Note: it is not clearly written in RFC3261 if a proxy should accept any content (the default “*/*”) because it does not care about content. Or if it does not accept any content, which is “”.
Default value is “*/*”.
This parameter is the content of the Accept-Encoding header field. If “”, the header is not added in the reply. Please do not change the default value because OpenSIPS does not support any encodings yet.
Default value is “”.
This parameter is the content of the Accept-Language header field. If “”, the header is not added in the reply. You can set any language code which you prefer for error descriptions from other devices, but presumably there are not much devices around which support other languages then the default English.
Default value is “en”.
This parameter is the content of the Support header field. If “”, the header is not added in the reply. Please do not change the default value, because OpenSIPS currently does not support any of the SIP extensions registered at the IANA.
Default value is “”.
This function checks if the request method is OPTIONS and if the request URI does not contain an username. If both is true the request will be answered stateless with “200 OK” and the capabilities from the modules parameters.
It sends “500 Server Internal Error” for some errors and returns false if it is called for a wrong request.
The check for the request method and the missing username is optional because it is also done by the function itself. But you should not call this function outside the myself check because in this case the function could answer OPTIONS requests which are sent to you as outbound proxy but with an other destination then your proxy (this check is currently missing in the function).
This function can be used from REQUEST_ROUTE.
Example 1.5. options_reply usage
...
if (is_myself("$rd")) {
if (is_method("OPTIONS") && (! $ru=~"sip:.*[@]+.*")) {
options_reply();
}
}
...
Table 2.1. Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)
| Name | DevScore | Commits | Lines ++ | Lines -- | |
|---|---|---|---|---|---|
| 1. | Bogdan-Andrei Iancu (@bogdan-iancu) | 20 | 18 | 51 | 35 |
| 2. | Daniel-Constantin Mierla (@miconda) | 14 | 12 | 41 | 31 |
| 3. | Liviu Chircu (@liviuchircu) | 9 | 7 | 29 | 43 |
| 4. | Nils Ohlmeier | 9 | 3 | 630 | 4 |
| 5. | Razvan Crainea (@razvancrainea) | 8 | 5 | 85 | 88 |
| 6. | Elena-Ramona Modroiu | 4 | 2 | 4 | 4 |
| 7. | Vlad Patrascu (@rvlad-patrascu) | 4 | 2 | 3 | 2 |
| 8. | Ancuta Onofrei | 3 | 1 | 10 | 11 |
| 9. | Jan Janak (@janakj) | 3 | 1 | 7 | 7 |
| 10. | Konstantin Bokarius | 3 | 1 | 2 | 5 |
All remaining contributors: Edson Gellert Schubert.
(1) DevScore = author_commits + author_lines_added / (project_lines_added / project_commits) + author_lines_deleted / (project_lines_deleted / project_commits)
(2) including any documentation-related commits, excluding merge commits. Regarding imported patches/code, we do our best to count the work on behalf of the proper owner, as per the "fix_authors" and "mod_renames" arrays in opensips/doc/build-contrib.sh. If you identify any patches/commits which do not get properly attributed to you, please submit a pull request which extends "fix_authors" and/or "mod_renames".
(3) ignoring whitespace edits, renamed files and auto-generated files
Table 2.2. Most recently active contributors(1) to this module
| Name | Commit Activity | |
|---|---|---|
| 1. | Razvan Crainea (@razvancrainea) | Nov 2012 - Sep 2019 |
| 2. | Bogdan-Andrei Iancu (@bogdan-iancu) | Nov 2003 - Dec 2018 |
| 3. | Liviu Chircu (@liviuchircu) | Jul 2014 - Jun 2018 |
| 4. | Vlad Patrascu (@rvlad-patrascu) | May 2017 - Jul 2017 |
| 5. | Daniel-Constantin Mierla (@miconda) | Jul 2006 - Mar 2008 |
| 6. | Konstantin Bokarius | Mar 2008 - Mar 2008 |
| 7. | Edson Gellert Schubert | Feb 2008 - Feb 2008 |
| 8. | Ancuta Onofrei | Sep 2007 - Sep 2007 |
| 9. | Elena-Ramona Modroiu | Jul 2005 - Oct 2005 |
| 10. | Jan Janak (@janakj) | Aug 2004 - Aug 2004 |
All remaining contributors: Nils Ohlmeier.
(1) including any documentation-related commits, excluding merge commits
Last edited by: Bogdan-Andrei Iancu (@bogdan-iancu), Liviu Chircu (@liviuchircu), Vlad Patrascu (@rvlad-patrascu), Razvan Crainea (@razvancrainea), Daniel-Constantin Mierla (@miconda), Konstantin Bokarius, Edson Gellert Schubert, Elena-Ramona Modroiu, Jan Janak (@janakj), Nils Ohlmeier.
doc copyrights:
Copyright © 2003 FhG FOKUS