Merge pull request #461 from pixelroot/master

[friendica.git] / include / plugin.php

diff --git a/include/plugin.php b/include/plugin.php
index c6b61ae6e92fe45a54920cfa5faf672a34c2e95b..3eeb0ccaa8c1097f4104c2e6da579af58c77d46d 100644 (file)
--- a/include/plugin.php
+++ b/include/plugin.php
@@ -8,7 +8,10 @@ function uninstall_plugin($plugin){
        q("DELETE FROM `addon` WHERE `name` = '%s' ",
                dbesc($plugin)
        );
-
+    
+       // define THISPLUGIN, make life easy to plugin devs :-)
+       define("THISPLUGIN", 'addon/' . $plugin . '/' . $plugin . '.php');
+       
        @include_once('addon/' . $plugin . '/' . $plugin . '.php');
        if(function_exists($plugin . '_uninstall')) {
                $func = $plugin . '_uninstall';
@@ -18,9 +21,11 @@ function uninstall_plugin($plugin){
 
 if (! function_exists('install_plugin')){
 function install_plugin($plugin) {
-
        // silently fail if plugin was removed
 
+       // define THISPLUGIN, make life easy to plugin devs :-)
+       define("THISPLUGIN", 'addon/' . $plugin . '/' . $plugin . '.php');
+
        if(! file_exists('addon/' . $plugin . '/' . $plugin . '.php'))
                return false;
        logger("Addons: installing " . $plugin);
@@ -77,7 +82,10 @@ function reload_plugins() {
                                $pl = trim($pl);
 
                                $fname = 'addon/' . $pl . '/' . $pl . '.php';
-                               
+
+                               // define THISPLUGIN, make life easy to plugin devs :-)
+                               define("THISPLUGIN", $fname);
+
                                if(file_exists($fname)) {
                                        $t = @filemtime($fname);
                                        foreach($installed as $i) {
@@ -111,7 +119,7 @@ function reload_plugins() {
 
 
 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),
@@ -121,10 +129,11 @@ function register_hook($hook,$file,$function) {
        if(count($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;
 }}
@@ -145,7 +154,7 @@ if(! function_exists('load_hooks')) {
 function load_hooks() {
        $a = get_app();
        $a->hooks = array();
-       $r = q("SELECT * FROM `hook` WHERE 1");
+       $r = q("SELECT * FROM `hook` WHERE 1 ORDER BY `priority` DESC");
        if(count($r)) {
                foreach($r as $rr) {
                        if(! array_key_exists($rr['hook'],$a->hooks))
@@ -162,6 +171,8 @@ function call_hooks($name, &$data = null) {
 
        if((is_array($a->hooks)) && (array_key_exists($name,$a->hooks))) {
                foreach($a->hooks[$name] as $hook) {
+                       // define THISPLUGIN, make life easy to plugin devs :-)
+                       define("THISPLUGIN", $hook[0]);
                        @include_once($hook[0]);
                        if(function_exists($hook[1])) {
                                $func = $hook[1];
@@ -255,6 +266,7 @@ function get_theme_info($theme){
                'author' => array(),
                'maintainer' => array(),
                'version' => "",
+               'credits' => "",
                'experimental' => false,
                'unsupported' => false
        );
@@ -316,3 +328,87 @@ function get_theme_screenshot($theme) {
        }
        return($a->get_baseurl() . '/images/blank.png');
 }
+
+
+// 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 : '') ;
+}