pi_http Module

Table of Contents

1. Admin Guide
1.1. Overview
1.2. Usage
1.3. Framework
1.3.1. Database connection definition block
1.3.2. Table definition block
1.3.3. Command definition block
1.4. To-do
1.5. Dependencies
1.5.1. OpenSIPS Modules
1.6. External Libraries or Applications
1.7. Exported Parameters
1.7.1. pi_http_root(string)
1.7.2. framework(string)
1.7.3. pi_http_method(integrer)
1.8. Exported MI Functions
1.8.1. pi_reload_tbls_and_cmds
2. Contributors
2.1. By Commit Statistics
2.2. By Commit Activity
3. Documentation
3.1. Contributors

List of Tables

2.1. Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)
2.2. Most recently active contributors(1) to this module

List of Examples

1.1. Set pi_http_root parameter
1.2. Set framework parameter
1.3. Set pi_http_method parameter

Chapter1.Admin Guide


This module provides an HTTP provisioning interface for OpenSIPS. It is using the OpenSIPS's internal database API to provide a simple way of manipulating records inside OpenSIPS's tables.

The module offers:

  • ability to connect to multiple/different databases through OpenSIPS's db API; (all OpenSIPS's databases are supported);

  • ability to perform data input validation through OpenSIPS API;

  • ability to reconfigure the interface layout on the fly by reloading the config from the xml framework via mi command interface.

Note: when provisioning tables using db_text, any change made to a db_text table will not be reflected on the actual text file. In order to force a write out to the disk of the cached tables, the db_text mi command dbt_dump must be used.


The layout of the provisioning interface is controlled via an external xml file (see the framework parameter). An example of a framework xml file is provided inside the examples directory of the pi_http module. A simple framework file can be generated by the opensips-cli command:

opensips-cli pframework create

The generated framework will be saved inside OpenSIPS's config directory as pi_framework_sample. The list of configurable tables will be based on the "database_modules" setting of opensips-cli.cfg if present, otherwise a default set of configurable tables will be used.


The xml framework file is organized in three distinctive blocks:

  • database connection definition block

  • table definition block

  • command definition block

1.3.1.Database connection definition block

Each connection to a particular database must be defined here with a unique database connection id. The connection parameters are defined following the db_url param pattern for all OpenSIPS modules that are using a database.

Supported databases:

  • berkeley

  • flatstore

  • http

  • mysql

  • oracle

  • postgres

  • text

  • unixodbc

  • virtual

1.3.2.Table definition block

Each table managed through the OpenSIPS provisioning interface must be defined here with a unique table id. For each table, the database connection id must be specified. Each table must list all columns that will be managed by the OpenSIPS provisioning interface. Each column must have a unique field name and a type. Each column may have a validation tag for validating input data.

Supported column types:

  • DB_INT




  • DB_STR


    • Note: input field must be provided in 'YEAR-MM-DD HH:MM:SS' format.



Supported validation methods:

  • IPV4 - represents an IPv4 address

  • URI - represents a SIP URI

  • URI_IPV4HOST - represents a SIP URI with an IPV4 as a host

  • P_HOST_PORT - represents [proto:]host[:port]

  • P_IPV4_PORT - represents [proto:]IPv4[:port]

1.3.3.Command definition block

Multiple provisioning commands can be grouped together. Each group can have multiple commands. Each command definition in a group must have the table id of the table that is operating on along with the command type to be performed.

The command type can have up to three type of column parameters:

  • clause columns

  • query columns

  • order by columns

Each column parameter must define the name(s) of the column(s) (must match a field name in the description table identified by the table id). A column can accept a list of imposed values. Each imposed value will have an id that will be displayed on the web interface and the actual value that will be used for db operations. Clause columns must define operators. Here's the list of supported operators: '<', '>', '=', '<=', '>=', '!='.

Supported database command types:

  • DB_QUERY - performs an SQL query and supports three type of columns:

    • clause: 0 or more columns

    • query: 1 column

    • order: 0 or 1 column

  • DB_INSERT - performs an SQL insert and supports one type of column:

    • query: 1 or more columns

  • DB_DELETE - performs an SQL delete and supports one type of column:

    • clause: 1 or more columns

  • DB_UPDATE - performs an SQL update and supports two type of columns:

    • clause: 0 or more columns

    • query: 1 or more columns

  • DB_REPLACE - performs an SQL replace and supports one type of column:

    • query: 1 or more columns

Please note that some databases have a restricted set of database command types.


Features to be added in the future:

  • full subscriber provisionning with automatic ha1/ha1b fields.


1.5.1.OpenSIPS Modules

The following modules must be loaded before this module:

  • httpd module.

1.6.External Libraries or Applications

The following libraries or applications must be installed before running OpenSIPS with this module loaded:

  • libxml2

1.7.Exported Parameters


Specifies the root path for pi HTTP requests. The link to the OpenSIPS provisioning web interface must be constructed using the following patern: http://[opensips_IP]:[opensips_mi_port]/[pi_http_root]

The default value is "pi".

Example1.1.Set pi_http_root parameter

modparam("pi_http", "pi_http_root", "opensips_pi")


Specifies the full path for xml framework descriptor.

There's no default value. This parameter is mandatory.

Example1.2.Set framework parameter

modparam("pi_http", "framework", "/usr/local/etc/opensips/pi_framework.xml")


Specifies the HTTP request method to be used:

  • 0 - use GET HTTP request

  • 1 - use POST HTTP request

The default value is 0.

Example1.3.Set pi_http_method parameter

modparam("pi_http", "pi_http_method", 1)

1.8.Exported MI Functions


Reloads the layout of the provisioning interface from the framework file.

Name: pi_reload_tbls_and_cmds

Parameters: none

MI FIFO Command Format:

opensips-cli -x mi pi_reload_tbls_and_cmds


2.1.By Commit Statistics

Table2.1.Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)

NameDevScoreCommitsLines ++Lines --
1. Ovidiu Sas (@ovidiusas)71314389206
2. Liviu Chircu (@liviuchircu)14123854
3. Razvan Crainea (@razvancrainea)13113031
4. Bogdan-Andrei Iancu (@bogdan-iancu)7555
5. Vlad Patrascu (@rvlad-patrascu)642119
6. Ionut Ionita (@ionutrazvanionita)425328
7. Vlad Paiu (@vladpaiu)4252
8. Zero King3122
9. Peter Lemenkov (@lemenkov)3111

(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

2.2.By Commit Activity

Table2.2.Most recently active contributors(1) to this module

NameCommit Activity
1. Bogdan-Andrei Iancu (@bogdan-iancu)Jan 2013 - Mar 2020
2. Zero KingMar 2020 - Mar 2020
3. Liviu Chircu (@liviuchircu)Mar 2014 - Sep 2019
4. Razvan Crainea (@razvancrainea)Aug 2015 - Sep 2019
5. Vlad Patrascu (@rvlad-patrascu)May 2017 - Jan 2019
6. Peter Lemenkov (@lemenkov)Jun 2018 - Jun 2018
7. Ionut Ionita (@ionutrazvanionita)Nov 2015 - Jan 2017
8. Ovidiu Sas (@ovidiusas)Oct 2012 - Apr 2016
9. Vlad Paiu (@vladpaiu)May 2013 - May 2013

(1) including any documentation-related commits, excluding merge commits



Last edited by: Liviu Chircu (@liviuchircu), Razvan Crainea (@razvancrainea), Peter Lemenkov (@lemenkov), Vlad Patrascu (@rvlad-patrascu), Ovidiu Sas (@ovidiusas), Bogdan-Andrei Iancu (@bogdan-iancu).

Documentation Copyrights:

Copyright 2012-2013 VoIP Embedded, Inc.