Adding first bits of BigBlueButton videoconference integration plugin

plugin/bbb/course_index.php

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+<?php
+/**
+ * This script is included by the course_home.php script (indirectly) and is 
+ * used to show the link to the plugin from inside the course's tools list
+ */
+echo "Videoconference";

plugin/bbb/course_install.php

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+<?php
+/**
+ * This script should be included by add_course.lib.inc.php when adding a new course
+ */
+//$cdb is defined inside the fillDbCourse() function which is calling this script
+$t_course = Database::get_course_table(TABLE_COURSE_SETTING,$cdb);
+$sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_meeting_name','','plugins')";
+$r = Database::query($sql_course);
+$sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_attendee_password','','plugins')";
+$r = Database::query($sql_course);
+$sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_moderator_password','','plugins')";
+$r = Database::query($sql_course);
+$sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_welcome_message','','plugins')";
+$r = Database::query($sql_course);

plugin/bbb/index.php

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+<?php
+// should contain the code to access the plugin from outside a course
+?>

plugin/bbb/install.php

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+<?php
+/**
+ * This script is included by main/admin/settings.lib.php and generally 
+ * includes things to execute in the main database (settings_current table)
+ */
+$t_settings = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
+$t_options = Database::get_main_table(TABLE_MAIN_SETTINGS_OPTIONS);
+$sql = "INSERT INTO $t_settings
+  (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) 
+  VALUES
+  ('bbb_plugin', '', 'radio', 'Extra', 'false', 'BigBlueButtonEnableTitle','BigBlueButtonEnableComment',NULL,NULL, 1)";
+Database::query($sql);
+$sql = "INSERT INTO $t_options (variable, value, display_text) VALUES ('bbb_plugin', 'true', 'Yes')";
+Database::query($sql);
+$sql = "INSERT INTO $t_options (variable, value, display_text) VALUES ('bbb_plugin', 'false', 'No')";
+Database::query($sql);
+$sql = "INSERT INTO $t_settings
+  (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) 
+  VALUES
+  ('bbb_plugin_host', '', 'textfield', 'Extra', '192.168.0.100', 'BigBlueButtonHostTitle','BigBlueButtonHostComment',NULL,NULL, 1)";
+Database::query($sql);
+$sql = "INSERT INTO $t_settings
+  (variable, subkey, type, category, selected_value, title, comment, scope, subkeytext, access_url_changeable) 
+  VALUES
+  ('bbb_plugin_salt', '', 'textfield', 'Extra', '', 'BigBlueButtonSecuritySaltTitle','BigBlueButtonSecuritySaltComment',NULL,NULL, 1)";
+Database::query($sql);
+// update existing courses to add conference settings
+$t_courses = Database::get_main_table(TABLE_MAIN_COURSE);
+$sql = "SELECT id, code, db_name FROM $t_courses ORDER BY id";
+$res = Database::query($sql);
+while ($row = Database::fetch_assoc($res)) {
+  $t_course = Database::get_course_table(TABLE_COURSE_SETTING,$row['db_name']);
+  $sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_meeting_name','','plugins')";
+  $r = Database::query($sql_course);
+  $sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_attendee_password','','plugins')";
+  $r = Database::query($sql_course);
+  $sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_moderator_password','','plugins')";
+  $r = Database::query($sql_course);
+  $sql_course = "INSERT INTO $t_course (variable,value,category) VALUES ('big_blue_button_welcome_message','','plugins')";
+  $r = Database::query($sql_course);
+}

plugin/bbb/plugin.php

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+<?php
+/**
+ * This script is a configuration file for the BigBlueButton plugin. You can use it as a master for other course plugins.
+ * These settings will be used in the administration interface for plugins (Chamilo configuration settings->Plugins)
+ * @package chamilo.plugin
+ * @author Yannick Warnier <ywarnier@beeznest.org>
+ */
+/**
+ * Plugin details (must be present)
+ */
+//the plugin title
+$plugin_info['title']='BigBlueButton';
+//the comments that go with the plugin
+$plugin_info['comment']="Open Source Videoconference tool";
+//the locations where this plugin can be shown
+$plugin_info['location']=array('course_tool_plugin');
+//the plugin version
+$plugin_info['version']='0.9';
+//the plugin author
+$plugin_info['author']='Yannick Warnier';

plugin/bbb/readme.txt

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+This plugin will create a link in existing and new courses for the teachers to start a videoconference room, as well as the administration settings to configure this tool.

plugin/bbb/uninstall.php

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+<?php
+/**
+ * This script is included by main/admin/settings.lib.php when unselecting a plugin 
+ * and is meant to remove things installed by the install.php script in both
+ * the global database and the courses tables
+ */
+$t_settings = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
+$t_options = Database::get_main_table(TABLE_MAIN_SETTINGS_OPTIONS);
+$sql = "DELETE FROM $t_settings WHERE variable = 'bbb_plugin'";
+Database::query($sql);
+$sql = "DELETE FROM $t_options WHERE variable = 'bbb_plugin'";
+Database::query($sql);
+$sql = "DELETE FROM $t_settings WHERE variable = 'bbb_plugin_host'";
+Database::query($sql);
+$sql = "DELETE FROM $t_settings WHERE variable = 'bbb_plugin_salt'";
+Database::query($sql);
+// update existing courses to add conference settings
+$t_courses = Database::get_main_table(TABLE_MAIN_COURSE);
+$sql = "SELECT id, code, db_name FROM $t_courses ORDER BY id";
+$res = Database::query($sql);
+while ($row = Database::fetch_assoc($res)) {
+  $t_course = Database::get_course_table(TABLE_COURSE_SETTING,$row['db_name']);
+  $sql_course = "DELETE FROM $t_course  WHERE variable = 'big_blue_button_meeting_name'";
+  $r = Database::query($sql_course);
+  $sql_course = "DELETE FROM $t_course  WHERE variable = 'big_blue_button_attendee_password'";
+  $r = Database::query($sql_course);
+  $sql_course = "DELETE FROM $t_course  WHERE variable = 'big_blue_button_moderator_password'";
+  $r = Database::query($sql_course);
+  $sql_course = "DELETE FROM $t_course  WHERE variable = 'big_blue_button_welcome_message'";
+  $r = Database::query($sql_course);
+}