<?php
+/**
+ * @file include/plugin.php
+ *
+ * @brief Some functions to handle addons and themes.
+ */
-// install and uninstall plugin
+/**
+ * @brief uninstalls an addon.
+ *
+ * @param string $plugin name of the addon
+ * @return boolean
+ */
if (! function_exists('uninstall_plugin')){
function uninstall_plugin($plugin){
logger("Addons: uninstalling " . $plugin);
- q("DELETE FROM `addon` WHERE `name` = '%s' LIMIT 1",
+ q("DELETE FROM `addon` WHERE `name` = '%s' ",
dbesc($plugin)
);
}
}}
+/**
+ * @brief installs an addon.
+ *
+ * @param string $plugin name of the addon
+ * @return bool
+ */
if (! function_exists('install_plugin')){
-function install_plugin($plugin){
+function install_plugin($plugin) {
+ // silently fail if plugin was removed
+
+ if(! file_exists('addon/' . $plugin . '/' . $plugin . '.php'))
+ return false;
logger("Addons: installing " . $plugin);
$t = @filemtime('addon/' . $plugin . '/' . $plugin . '.php');
@include_once('addon/' . $plugin . '/' . $plugin . '.php');
if(function_exists($plugin . '_install')) {
$func = $plugin . '_install';
$func();
-
+
$plugin_admin = (function_exists($plugin."_plugin_admin")?1:0);
-
+
$r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`, `plugin_admin`) VALUES ( '%s', 1, %d , %d ) ",
dbesc($plugin),
intval($t),
$plugin_admin
);
+
+ // we can add the following with the previous SQL
+ // once most site tables have been updated.
+ // This way the system won't fall over dead during the update.
+
+ if(file_exists('addon/' . $plugin . '/.hidden')) {
+ q("UPDATE `addon` SET `hidden` = 1 WHERE `name` = '%s'",
+ dbesc($plugin)
+ );
+ }
+ return true;
}
else {
logger("Addons: FAILED installing " . $plugin);
+ return false;
}
}}
$installed = array();
$parr = explode(',',$plugins);
+
if(count($parr)) {
foreach($parr as $pl) {
+
$pl = trim($pl);
-
- $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
- foreach($installed as $i) {
- if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
- logger('Reloading plugin: ' . $i['name']);
- @include_once('addon/' . $pl . '/' . $pl . '.php');
-
- if(function_exists($pl . '_uninstall')) {
- $func = $pl . '_uninstall';
- $func();
- }
- if(function_exists($pl . '_install')) {
- $func = $pl . '_install';
- $func();
+
+ $fname = 'addon/' . $pl . '/' . $pl . '.php';
+
+ if(file_exists($fname)) {
+ $t = @filemtime($fname);
+ foreach($installed as $i) {
+ if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
+ logger('Reloading plugin: ' . $i['name']);
+ @include_once($fname);
+
+ if(function_exists($pl . '_uninstall')) {
+ $func = $pl . '_uninstall';
+ $func();
+ }
+ if(function_exists($pl . '_install')) {
+ $func = $pl . '_install';
+ $func();
+ }
+ q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d",
+ intval($t),
+ intval($i['id'])
+ );
}
- q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
- intval($t),
- intval($i['id'])
- );
}
}
}
}
}
-}}
-
+}}
+/**
+ * @brief check if addon is enabled
+ *
+ * @param string $plugin
+ * @return boolean
+ */
+function plugin_enabled($plugin) {
+ $r = q("SELECT * FROM `addon` WHERE `installed` = 1 AND `name` = '%s'", $plugin);
+ return((bool)(count($r) > 0));
+}
+/**
+ * @brief registers a hook.
+ *
+ * @param string $hook the name of the hook
+ * @param string $file the name of the file that hooks into
+ * @param string $function the name of the function that the hook will call
+ * @param int $priority A priority (defaults to 0)
+ * @return mixed|bool
+ */
if(! function_exists('register_hook')) {
-function register_hook($hook,$file,$function) {
+function register_hook($hook,$file,$function,$priority=0) {
$r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
dbesc($hook),
if(count($r))
return true;
- $r = q("INSERT INTO `hook` (`hook`, `file`, `function`) VALUES ( '%s', '%s', '%s' ) ",
+ $r = q("INSERT INTO `hook` (`hook`, `file`, `function`, `priority`) VALUES ( '%s', '%s', '%s', '%s' ) ",
dbesc($hook),
dbesc($file),
- dbesc($function)
+ dbesc($function),
+ dbesc($priority)
);
return $r;
}}
+/**
+ * @brief unregisters a hook.
+ *
+ * @param string $hook the name of the hook
+ * @param string $file the name of the file that hooks into
+ * @param string $function the name of the function that the hook called
+ * @return array
+ */
if(! function_exists('unregister_hook')) {
function unregister_hook($hook,$file,$function) {
- $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
+ $r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s'",
dbesc($hook),
dbesc($file),
dbesc($function)
function load_hooks() {
$a = get_app();
$a->hooks = array();
- $r = q("SELECT * FROM `hook` WHERE 1");
+ $r = q("SELECT * FROM `hook` WHERE 1 ORDER BY `priority` DESC, `file`");
if(count($r)) {
foreach($r as $rr) {
- $a->hooks[] = array($rr['hook'], $rr['file'], $rr['function']);
+ if(! array_key_exists($rr['hook'],$a->hooks))
+ $a->hooks[$rr['hook']] = array();
+ $a->hooks[$rr['hook']][] = array($rr['file'],$rr['function']);
}
}
}}
-
-if(! function_exists('call_hooks')) {
+/**
+ * @brief Calls a hook.
+ *
+ * Use this function when you want to be able to allow a hook to manipulate
+ * the provided data.
+ *
+ * @param string $name of the hook to call
+ * @param string|array &$data to transmit to the callback handler
+ */
function call_hooks($name, &$data = null) {
+ $stamp1 = microtime(true);
+
$a = get_app();
- if(count($a->hooks)) {
- foreach($a->hooks as $hook) {
- if($hook[HOOK_HOOK] === $name) {
- @include_once($hook[HOOK_FILE]);
- if(function_exists($hook[HOOK_FUNCTION])) {
- $func = $hook[HOOK_FUNCTION];
- $func($a,$data);
- }
- }
+ if (is_array($a->hooks) && array_key_exists($name, $a->hooks))
+ foreach ($a->hooks[$name] as $hook)
+ call_single_hook($a, $name, $hook, $data);
+}
+
+/**
+ * @brief Calls a single hook.
+ *
+ * @param string $name of the hook to call
+ * @param array $hook Hook data
+ * @param string|array &$data to transmit to the callback handler
+ */
+function call_single_hook($a, $name, $hook, &$data = null) {
+ // Don't run a theme's hook if the user isn't using the theme
+ if (strpos($hook[0], 'view/theme/') !== false && strpos($hook[0], 'view/theme/'.current_theme()) === false)
+ return;
+
+ @include_once($hook[0]);
+ if (function_exists($hook[1])) {
+ $func = $hook[1];
+ $func($a, $data);
+ } else {
+ // remove orphan hooks
+ q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s'",
+ dbesc($name),
+ dbesc($hook[0]),
+ dbesc($hook[1])
+ );
+ }
+}
+
+//check if an app_menu hook exist for plugin $name.
+//Return true if the plugin is an app
+if(! function_exists('plugin_is_app')) {
+function plugin_is_app($name) {
+ $a = get_app();
+
+ if(is_array($a->hooks) && (array_key_exists('app_menu',$a->hooks))) {
+ foreach($a->hooks['app_menu'] as $hook) {
+ if($hook[0] == 'addon/'.$name.'/'.$name.'.php')
+ return true;
}
}
-}}
+ return false;
+}}
-/*
- * parse plugin comment in search of plugin infos.
+/**
+ * @brief Parse plugin comment in search of plugin infos.
+ *
* like
- *
- * * Name: Plugin
+ * \code
+ *...* Name: Plugin
* * Description: A plugin which plugs in
- * * Version: 1.2.3
+ * . * Version: 1.2.3
* * Author: John <profile url>
* * Author: Jane <email>
* *
+ * *\endcode
+ * @param string $plugin the name of the plugin
+ * @return array with the plugin information
*/
if (! function_exists('get_plugin_info')){
function get_plugin_info($plugin){
- if (!is_file("addon/$plugin/$plugin.php")) return false;
-
+
+ $a = get_app();
+
+ $info=Array(
+ 'name' => $plugin,
+ 'description' => "",
+ 'author' => array(),
+ 'version' => "",
+ 'status' => ""
+ );
+
+ if (!is_file("addon/$plugin/$plugin.php")) return $info;
+
+ $stamp1 = microtime(true);
$f = file_get_contents("addon/$plugin/$plugin.php");
+ $a->save_timestamp($stamp1, "file");
+
$r = preg_match("|/\*.*\*/|msU", $f, $m);
-
+
+ if ($r){
+ $ll = explode("\n", $m[0]);
+ foreach( $ll as $l ) {
+ $l = trim($l,"\t\n\r */");
+ if ($l!=""){
+ list($k,$v) = array_map("trim", explode(":",$l,2));
+ $k= strtolower($k);
+ if ($k=="author"){
+ $r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
+ if ($r) {
+ $info['author'][] = array('name'=>$m[1], 'link'=>$m[2]);
+ } else {
+ $info['author'][] = array('name'=>$v);
+ }
+ } else {
+ if (array_key_exists($k,$info)){
+ $info[$k]=$v;
+ }
+ }
+
+ }
+ }
+
+ }
+ return $info;
+}}
+
+
+/**
+ * @brief Parse theme comment in search of theme infos.
+ *
+ * like
+ * \code
+ * ..* Name: My Theme
+ * * Description: My Cool Theme
+ * . * Version: 1.2.3
+ * * Author: John <profile url>
+ * * Maintainer: Jane <profile url>
+ * *
+ * \endcode
+ * @param string $theme the name of the theme
+ * @return array
+ */
+
+if (! function_exists('get_theme_info')){
+function get_theme_info($theme){
$info=Array(
- 'name' => $plugin,
+ 'name' => $theme,
'description' => "",
'author' => array(),
- 'version' => ""
+ 'maintainer' => array(),
+ 'version' => "",
+ 'credits' => "",
+ 'experimental' => false,
+ 'unsupported' => false
);
-
+
+ if(file_exists("view/theme/$theme/experimental"))
+ $info['experimental'] = true;
+ if(file_exists("view/theme/$theme/unsupported"))
+ $info['unsupported'] = true;
+
+ if (!is_file("view/theme/$theme/theme.php")) return $info;
+
+ $a = get_app();
+ $stamp1 = microtime(true);
+ $f = file_get_contents("view/theme/$theme/theme.php");
+ $a->save_timestamp($stamp1, "file");
+
+ $r = preg_match("|/\*.*\*/|msU", $f, $m);
+
if ($r){
$ll = explode("\n", $m[0]);
foreach( $ll as $l ) {
list($k,$v) = array_map("trim", explode(":",$l,2));
$k= strtolower($k);
if ($k=="author"){
+
$r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
if ($r) {
$info['author'][] = array('name'=>$m[1], 'link'=>$m[2]);
} else {
$info['author'][] = array('name'=>$v);
}
+ }
+ elseif ($k=="maintainer"){
+ $r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
+ if ($r) {
+ $info['maintainer'][] = array('name'=>$m[1], 'link'=>$m[2]);
+ } else {
+ $info['maintainer'][] = array('name'=>$v);
+ }
} else {
if (array_key_exists($k,$info)){
$info[$k]=$v;
}
}
-
+
}
}
-
+
}
return $info;
}}
+/**
+ * @brief Returns the theme's screenshot.
+ *
+ * The screenshot is expected as view/theme/$theme/screenshot.[png|jpg].
+ *
+ * @param sring $theme The name of the theme
+ * @return string
+ */
+function get_theme_screenshot($theme) {
+ $a = get_app();
+ $exts = array('.png','.jpg');
+ foreach($exts as $ext) {
+ if(file_exists('view/theme/' . $theme . '/screenshot' . $ext))
+ return($a->get_baseurl() . '/view/theme/' . $theme . '/screenshot' . $ext);
+ }
+ return($a->get_baseurl() . '/images/blank.png');
+}
+
+// install and uninstall theme
+if (! function_exists('uninstall_theme')){
+function uninstall_theme($theme){
+ logger("Addons: uninstalling theme " . $theme);
+
+ @include_once("view/theme/$theme/theme.php");
+ if(function_exists("{$theme}_uninstall")) {
+ $func = "{$theme}_uninstall";
+ $func();
+ }
+}}
+
+if (! function_exists('install_theme')){
+function install_theme($theme) {
+ // silently fail if theme was removed
+
+ if(! file_exists("view/theme/$theme/theme.php"))
+ return false;
+
+ logger("Addons: installing theme $theme");
+
+ @include_once("view/theme/$theme/theme.php");
+
+ if(function_exists("{$theme}_install")) {
+ $func = "{$theme}_install";
+ $func();
+ return true;
+ }
+ else {
+ logger("Addons: FAILED installing theme $theme");
+ return false;
+ }
+
+}}
+
+
+
+// check service_class restrictions. If there are no service_classes defined, everything is allowed.
+// if $usage is supplied, we check against a maximum count and return true if the current usage is
+// less than the subscriber plan allows. Otherwise we return boolean true or false if the property
+// is allowed (or not) in this subscriber plan. An unset property for this service plan means
+// the property is allowed, so it is only necessary to provide negative properties for each plan,
+// or what the subscriber is not allowed to do.
+
+
+function service_class_allows($uid,$property,$usage = false) {
+
+ if($uid == local_user()) {
+ $service_class = $a->user['service_class'];
+ }
+ else {
+ $r = q("SELECT `service_class` FROM `user` WHERE `uid` = %d LIMIT 1",
+ intval($uid)
+ );
+ if($r !== false and count($r)) {
+ $service_class = $r[0]['service_class'];
+ }
+ }
+ if(! x($service_class))
+ return true; // everything is allowed
+
+ $arr = get_config('service_class',$service_class);
+ if(! is_array($arr) || (! count($arr)))
+ return true;
+
+ if($usage === false)
+ return ((x($arr[$property])) ? (bool) $arr['property'] : true);
+ else {
+ if(! array_key_exists($property,$arr))
+ return true;
+ return (((intval($usage)) < intval($arr[$property])) ? true : false);
+ }
+}
+
+
+function service_class_fetch($uid,$property) {
+
+ if($uid == local_user()) {
+ $service_class = $a->user['service_class'];
+ }
+ else {
+ $r = q("SELECT `service_class` FROM `user` WHERE `uid` = %d LIMIT 1",
+ intval($uid)
+ );
+ if($r !== false and count($r)) {
+ $service_class = $r[0]['service_class'];
+ }
+ }
+ if(! x($service_class))
+ return false; // everything is allowed
+
+ $arr = get_config('service_class',$service_class);
+ if(! is_array($arr) || (! count($arr)))
+ return false;
+
+ return((array_key_exists($property,$arr)) ? $arr[$property] : false);
+
+}
+
+function upgrade_link($bbcode = false) {
+ $l = get_config('service_class','upgrade_link');
+ if(! $l)
+ return '';
+ if($bbcode)
+ $t = sprintf('[url=%s]' . t('Click here to upgrade.') . '[/url]', $l);
+ else
+ $t = sprintf('<a href="%s">' . t('Click here to upgrade.') . '</div>', $l);
+ return $t;
+}
+
+function upgrade_message($bbcode = false) {
+ $x = upgrade_link($bbcode);
+ return t('This action exceeds the limits set by your subscription plan.') . (($x) ? ' ' . $x : '') ;
+}
+
+function upgrade_bool_message($bbcode = false) {
+ $x = upgrade_link($bbcode);
+ return t('This action is not available under your subscription plan.') . (($x) ? ' ' . $x : '') ;
+}
+
+/**
+ * @brief Get the full path to relevant theme files by filename
+ *
+ * This function search in the theme directory (and if not present in global theme directory)
+ * if there is a directory with the file extension and for a file with the given
+ * filename.
+ *
+ * @param string $file Filename
+ * @param string $root Full root path
+ * @return string Path to the file or empty string if the file isn't found
+ */
+function theme_include($file, $root = '') {
+ // Make sure $root ends with a slash / if it's not blank
+ if($root !== '' && $root[strlen($root)-1] !== '/')
+ $root = $root . '/';
+ $theme_info = $a->theme_info;
+ if(is_array($theme_info) AND array_key_exists('extends',$theme_info))
+ $parent = $theme_info['extends'];
+ else
+ $parent = 'NOPATH';
+ $theme = current_theme();
+ $thname = $theme;
+ $ext = substr($file,strrpos($file,'.')+1);
+ $paths = array(
+ "{$root}view/theme/$thname/$ext/$file",
+ "{$root}view/theme/$parent/$ext/$file",
+ "{$root}view/$ext/$file",
+ );
+ foreach($paths as $p) {
+ // strpos() is faster than strstr when checking if one string is in another (http://php.net/manual/en/function.strstr.php)
+ if(strpos($p,'NOPATH') !== false)
+ continue;
+ if(file_exists($p))
+ return $p;
+ }
+ return '';
+}