From d0f8585da3b71ff1bb8758ef59c16f87d2b54ce4 Mon Sep 17 00:00:00 2001
From: moodler <moodler>
Date: Mon, 15 Sep 2008 06:56:08 +0000
Subject: [PATCH] MDL-13766  Cleaned up the formatting a bit for readability

---
 repository/ws.php | 312 +++++++++++++++++++++++-----------------------
 1 file changed, 155 insertions(+), 157 deletions(-)

diff --git a/repository/ws.php b/repository/ws.php
index 97b8a9398e..189130bcc7 100644
--- a/repository/ws.php
+++ b/repository/ws.php
@@ -1,178 +1,176 @@
-<?php
-set_time_limit(0);
-header("Cache-Control: no-cache, must-revalidate");
-header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
-require_once('../config.php');
-require_once('../lib/filelib.php');
-require_once('lib.php');
-// page or path
-$p     = optional_param('p', '', PARAM_INT);
-// opened in editor or moodleform
-$env   = optional_param('env', 'form', PARAM_ALPHA);
-// file to download
-$file  = optional_param('file', '', PARAM_RAW);
-// rename the file name
-$title = optional_param('title', '', PARAM_FILE);
-$action = optional_param('action', '', PARAM_ALPHA);
-$callback = optional_param('callback', '', PARAM_CLEANHTML);
-// repository ID
-$repo_id = optional_param('repo_id', 1, PARAM_INT);
-$ctx_id  = optional_param('ctx_id', SITEID, PARAM_INT);
-$userid  = $USER->id;
+<?php  // $Id$
 
-// check context id
-if (!repository_check_context($ctx_id)) {
-    $err = new stdclass;
-    $err->e = get_string('nopermissiontoaccess', 'repository');
-    die(json_encode($err));
-}
+/// The Web service script that is called from the filepicker front end
 
-/**
- * walk an array to attach repository ID
- */
-function attach_repository_id(&$value, $key, $id){
-    $value['repo_id'] = $id;
-}
+    set_time_limit(0);
+    header("Cache-Control: no-cache, must-revalidate");
+    header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
+    require_once('../config.php');
+    require_once('../lib/filelib.php');
+    require_once('lib.php');
 
-/**
- * these actions are requested without repository ID
- */
-switch ($action) {
-case 'gsearch':
-    // global search
-    $repos = repository_get_instances(array(get_context_instance_by_id($ctx_id), get_system_context()));
-    $list = array();
-    foreach($repos as $repo){
-        if ($repo->global_search()) {
-            try {
-                $ret = $repo->get_listing(null, $search);
-                array_walk($ret['list'], 'attach_repository_id', $repo->id);
-                $tmp = array_merge($list, $ret['list']);
-                $list = $tmp;
-            } catch (repository_exception $e) {
-                $err = new stdclass;
-                $err->e = $e->getMessage();
-                die(json_encode($err));
-            }
-        }
-    }
-    die(json_encode(array('list'=>$list)));
-    break;
-case 'ccache':
-    //clean cache
-    $cache = new curl_cache;
-    $cache->refresh();
-    $action = 'list';
-    break;
-}
+/// Parameters
+    $p     = optional_param('p', '', PARAM_INT);              // page or path
+    $env   = optional_param('env', 'form', PARAM_ALPHA);      // opened in editor or moodleform
+    $file  = optional_param('file', '', PARAM_RAW);           // file to download
+    $title = optional_param('title', '', PARAM_FILE);         // new file name
+    $action = optional_param('action', '', PARAM_ALPHA);
+    $ctx_id  = optional_param('ctx_id', SITEID, PARAM_INT);   // context ID
+    $repo_id = optional_param('repo_id', 1, PARAM_INT);       // repository ID
+    $callback = optional_param('callback', '', PARAM_CLEANHTML);
 
-// Get repository instance information
-$sql = 'SELECT i.name, i.typeid, r.type FROM {repository} r, {repository_instances} i WHERE i.id='.$repo_id.' AND i.typeid=r.id';
-if(!$repository = $DB->get_record_sql($sql)) {
-    $err = new stdclass;
-    $err->e = get_string('invalidrepositoryid', 'repository');
-    die(json_encode($err));
-} else {
-    $type = $repository->type;
-}
 
-if(file_exists($CFG->dirroot.'/repository/'.
-    $type.'/repository.class.php'))
-{
-    require_once($CFG->dirroot.'/repository/'.
-        $type.'/repository.class.php');
-    $classname = 'repository_' . $type;
-    try{
-        $repo = new $classname($repo_id, $ctx_id, array('ajax'=>true, 'name'=>$repository->name));
-    } catch (repository_exception $e){
+/// Check permissions
+    if (! (isloggedin() && repository_check_context($ctx_id)) ) {
         $err = new stdclass;
-        $err->e = $e->getMessage();
+        $err->e = get_string('nopermissiontoaccess', 'repository');
         die(json_encode($err));
     }
-} else {
-    $err = new stdclass;
-    $err->e = get_string('invalidplugin', 'repository');
-    die(json_encode($err));
-}
 
-if (!empty($callback)) {
-    // call opener window to refresh repository
-    // the callback url should be something like this:
-    // http://xx.moodle.com/repository/ws.php?callback=yes&repo_id=1&sid=xxx
-    // sid is the attached auth token from external source
-    $js  =<<<EOD
-<html><head><script type="text/javascript">
-window.opener.repository_callback($repo_id);
-window.close();
-</script><body></body></html>
-EOD;
-    echo $js;
-    die;
-}
+/// Check for actions that do not need repository ID
+    switch ($action) {
 
-switch ($action) {
-case 'searchform':
-    $repo->print_search();
-    break;
-case 'login':
-    try {
-        echo json_encode($repo->print_login());
-    } catch (repository_exception $e){
-        $err = new stdclass;
-        $err->e = $e->getMessage();
-        die(json_encode($err));
+        case 'gsearch':     //  Global Search
+            $repos = repository_get_instances(array(get_context_instance_by_id($ctx_id), get_system_context()));
+            $list = array();
+            foreach($repos as $repo){
+                if ($repo->global_search()) {
+                    try {
+                        $ret = $repo->get_listing(null, $search);
+                        array_walk($ret['list'], 'repository_attach_id', $repo->id);  // See function below
+                        $tmp = array_merge($list, $ret['list']);
+                        $list = $tmp;
+                    } catch (repository_exception $e) {
+                        $err = new stdclass;
+                        $err->e = $e->getMessage();
+                        die(json_encode($err));
+                    }
+                }
+            }
+            die(json_encode(array('list'=>$list)));
+            break;
+
+        case 'ccache':      // Clean cache
+            $cache = new curl_cache;
+            $cache->refresh();
+            $action = 'list';
+            break;
     }
-    break;
-case 'search':
-    try {
-        echo json_encode($repo->search());
-    } catch (repository_exception $e) {
+
+/// Get repository instance information
+    $sql = 'SELECT i.name, i.typeid, r.type FROM {repository} r, {repository_instances} i '.
+           'WHERE i.id='.$repo_id.' AND i.typeid=r.id';
+    if (!$repository = $DB->get_record_sql($sql)) {
         $err = new stdclass;
-        $err->e = $e->getMessage();
+        $err->e = get_string('invalidrepositoryid', 'repository');
         die(json_encode($err));
+    } else {
+        $type = $repository->type;
     }
-    break;
-case 'list':
-    try {
-        if(!empty($p)) {
-            echo json_encode($repo->get_listing($p));
-        } else {
-            echo json_encode($repo->get_listing());
+
+    if (file_exists($CFG->dirroot.'/repository/'.$type.'/repository.class.php')) {
+        require_once($CFG->dirroot.'/repository/'.$type.'/repository.class.php');
+        $classname = 'repository_' . $type;
+        try {
+            $repo = new $classname($repo_id, $ctx_id, array('ajax'=>true, 'name'=>$repository->name));
+        } catch (repository_exception $e){
+            $err = new stdclass;
+            $err->e = $e->getMessage();
+            die(json_encode($err));
         }
-    } catch (repository_exception $e) {
+    } else {
         $err = new stdclass;
-        $err->e = $e->getMessage();
+        $err->e = get_string('invalidplugin', 'repository');
         die(json_encode($err));
     }
-    break;
-case 'download':
-    $path = $repo->get_file($file, $title);
-    $itemid = (int)substr(hexdec(uniqid()), 0, 9)+rand(1,100);
-    try {
-        $info = repository_move_to_filepool($path, $title, $itemid);
-        if($env == 'form'){
-            echo json_encode($info);
-        } elseif($env == 'editor') {
-            echo json_encode($info);
-        } else {
-        }
-    } catch (repository_exception $e){
-        $err = new stdclass;
-        $err->e = $e->getMessage();
-        die(json_encode($err));
-    } catch (Exception $e) {
-        $err = new stdclass;
-        $err->e = $e->getMessage();
-        die(json_encode($err));
+
+    if (!empty($callback)) {
+        // call opener window to refresh repository
+        // the callback url should be something like this:
+        // http://xx.moodle.com/repository/ws.php?callback=yes&repo_id=1&sid=xxx
+        // sid is the attached auth token from external source
+        $js  =<<<EOD
+<html><head><script type="text/javascript">
+    window.opener.repository_callback($repo_id);
+    window.close();
+</script><body></body></html>
+EOD;
+        echo $js;
+        die;
     }
-    break;
-case 'upload':
-    try {
-        echo json_encode($repo->get_listing());
-    } catch (repository_exception $e){
-        $err = new stdclass;
-        $err->e = $e->getMessage();
-        die(json_encode($err));
+
+
+/// These actions all occur on the currently active repository instance
+    switch ($action) {
+        case 'searchform':
+            $repo->print_search();
+            break;
+        case 'login':
+            try {
+                echo json_encode($repo->print_login());
+            } catch (repository_exception $e){
+                $err = new stdclass;
+                $err->e = $e->getMessage();
+                die(json_encode($err));
+            }
+            break;
+        case 'search':
+            try {
+                echo json_encode($repo->search());
+            } catch (repository_exception $e) {
+                $err = new stdclass;
+                $err->e = $e->getMessage();
+                die(json_encode($err));
+            }
+            break;
+        case 'list':
+            try {
+                if (!empty($p)) {
+                    echo json_encode($repo->get_listing($p));
+                } else {
+                    echo json_encode($repo->get_listing());
+                }
+            } catch (repository_exception $e) {
+                $err = new stdclass;
+                $err->e = $e->getMessage();
+                die(json_encode($err));
+            }
+            break;
+        case 'download':
+            $path = $repo->get_file($file, $title);
+            $itemid = (int)substr(hexdec(uniqid()), 0, 9)+rand(1,100);
+            try {
+                $info = repository_move_to_filepool($path, $title, $itemid);
+                if ($env == 'form'){
+                    echo json_encode($info);
+                } else if ($env == 'editor') {
+                    echo json_encode($info);
+                } else {
+                }
+            } catch (repository_exception $e){
+                $err = new stdclass;
+                $err->e = $e->getMessage();
+                die(json_encode($err));
+            } catch (Exception $e) {
+                $err = new stdclass;
+                $err->e = $e->getMessage();
+                die(json_encode($err));
+            }
+            break;
+        case 'upload':
+            try {
+                echo json_encode($repo->get_listing());
+            } catch (repository_exception $e){
+                $err = new stdclass;
+                $err->e = $e->getMessage();
+                die(json_encode($err));
+            }
+            break;
     }
-    break;
+
+/**
+ * Small function to walk an array to attach repository ID
+ */
+function repository_attach_id(&$value, $key, $id){
+    $value['repo_id'] = $id;
 }
-- 
2.39.5