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MDL-49329 admin: Improve the UI for installing dependencies

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This commit is contained in:
David Mudrák 2015-10-03 23:58:35 +02:00
parent 2f29cf6e63
commit 9137a89a1a
7 changed files with 118 additions and 22 deletions
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45
lib/classes/plugin_manager.php
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@ -915,6 +915,51 @@ class core_plugin_manager {
return true;
}
/**
* Can the given plugin remote plugin be installed via the admin UI?
*
* @param string $component
* @param string|int $requiredversion ANY_VERSION or the version number
* @return boolean
*/
public function is_remote_plugin_installable($component, $requiredversion) {
global $CFG;
// Make sure the feature is not disabled.
if (!empty($CFG->disableonclickaddoninstall)) {
return false;
}
// Make sure we know there is some version available.
if (!$this->is_remote_plugin_available($component, $requiredversion)) {
return false;
}
// Make sure the plugin type root directory is writable.
list($plugintype, $pluginname) = core_component::normalize_component($component);
if (!$this->is_plugintype_writable($plugintype)) {
return false;
}
$remoteinfo = $this->get_remote_plugin_info($component, $requiredversion);
$localinfo = $this->get_plugin_info($component);
if ($localinfo) {
// If the plugin is already present, prevent downgrade.
if ($current->versiondb > $remoteinfo->version->version) {
return false;
}
// Make sure we have write access to all the existing code.
if (!$this->is_plugin_folder_removable($component)) {
return false;
}
}
// Looks like it could work.
return true;
}
/**
* Returns information about a plugin in the plugins directory.
*