backup/restore_check.html

   1 <?php //$Id$
   2     //This page receive all the restore_form data. Then, if existing course
   3     //has been selected, shows a list of courses to select one.
   4     //It cheks that the parammeter from restore_form are coherent.
   5     //It puts all the restore info in the session.
   6     //Finally, it calls restore_execute to do the hard work
   7     //Get objects from session
   8     if ($SESSION) {
   9         $info = $SESSION->info;
  10         $course_header = $SESSION->course_header;
  11         if (isset($SESSION->restore)) {
  12             $restore = $SESSION->restore;
  13         }
  14     }
  15
  16     //Detect if we are coming from the restore form
  17     $fromform = optional_param ('fromform', 0, PARAM_INT);
  18
  19     if ($form1 = data_submitted()) {
  20         $currentcourseshortname = $course_header->course_shortname; //"store_ShortName";
  21         $course_header->course_shortname =  $form1->shortname;  //"update_ShortName";
  22         $course_header->course_fullname =   $form1->fullname;   //"update_FullName";
  23         $form1->startdate = make_timestamp($form1->startyear, $form1->startmonth, $form1->startday);
  24         $currentcoursestartdate = $course_header->course_startdate;
  25         $coursestartdatedateoffset = $form1->startdate - $currentcoursestartdate;
  26         $restore->course_startdateoffset = $coursestartdatedateoffset; //change to restore
  27     }
  28
  29     ///Enforce SESSION->course_header rewrite (PHP 4.x needed because assigns are by value) MDL-8298
  30     $SESSION->course_header = $course_header;
  31
  32     //If restore session info exists, but we are coming from the form
  33     //it has prioriry
  34     if (isset($restore) and !empty($fromform)) {
  35         unset($restore);
  36     }
  37
  38     // check for session objects
  39     if (empty($info) or empty($course_header)) {
  40       error( 'important information missing from SESSION' );
  41     }
  42
  43
  44     //If the restore object doesn't exist, we are going
  45     //to check every variable individually and create it
  46
  47     if (!isset($restore)) {
  48         //Check that we have all we need
  49         //backup_unique_code
  50         $backup_unique_code = required_param( 'backup_unique_code' );
  51         //file
  52         $file = required_param( 'file');
  53         //Checks for the required restoremod parameters
  54         if ($allmods = get_records("modules")) {
  55             foreach ($allmods as $mod) {
  56                 $modname = $mod->name;
  57                 $var = "restore_".$modname;
  58                 $$var = optional_param( $var,0);
  59                 $var = "restore_user_info_".$modname;
  60                 $$var = optional_param( $var,0);
  61                 $instances = !empty($info->mods[$mod->name]->instances) ? $info->mods[$mod->name]->instances : NULL;
  62                 if ($instances === NULL) {
  63                     continue;
  64                 }
  65                 foreach ($instances as $instance) {
  66                     $var = 'restore_'.$modname.'_instance_'.$instance->id;
  67                     $$var = optional_param($var,0);
  68                     $var = 'restore_user_info_'.$modname.'_instance_'.$instance->id;
  69                     $$var = optional_param($var,0);
  70                 }
  71             }
  72         }
  73         //restoreto
  74         $restore_restoreto = required_param('restore_restoreto');
  75         //restore_metacourse
  76         $restore_metacourse = required_param('restore_metacourse');
  77         //restore_users
  78         $restore_users = required_param('restore_users');
  79         //restore_logs
  80         $restore_logs = required_param('restore_logs');
  81         //restore_user_files
  82         $restore_user_files = required_param('restore_user_files');
  83         //restore_course_files
  84         $restore_course_files = required_param('restore_course_files');
  85         //restore_messages
  86         $restore_messages = required_param('restore_messages');
  87
  88         //Check we've selected a course to restore to
  89         $course_id = optional_param('course_id', 0, PARAM_INT);
  90
  91         //We are here, having all we need !!
  92         //Create the restore object and put it in the session
  93         $restore->backup_unique_code = $backup_unique_code;
  94         $restore->file = $file;
  95         if ($allmods = get_records("modules")) {
  96             foreach ($allmods as $mod) {
  97                 $modname = $mod->name;
  98                 $var = "restore_".$modname;
  99                 $restore->mods[$modname]->restore=$$var;
 100                 $var = "restore_user_info_".$modname;
 101                 $restore->mods[$modname]->userinfo=$$var;
 102                 $instances = !empty($info->mods[$mod->name]->instances) ? $info->mods[$mod->name]->instances : NULL;
 103                 if ($instances === NULL) {
 104                     continue;
 105                 }
 106                 foreach ($instances as $instance) {
 107                     $var = 'restore_'.$modname.'_instance_'.$instance->id;
 108                     $restore->mods[$modname]->instances[$instance->id]->restore = $$var;
 109                     $var = 'restore_user_info_'.$modname.'_instance_'.$instance->id;
 110                     $restore->mods[$modname]->instances[$instance->id]->userinfo = $$var;
 111                 }
 112             }
 113         }
 114         $restore->restoreto=$restore_restoreto;
 115         $restore->metacourse=$restore_metacourse;
 116         $restore->users=$restore_users;
 117         $restore->logs=$restore_logs;
 118         $restore->user_files=$restore_user_files;
 119         $restore->course_files=$restore_course_files;
 120         $restore->messages=$restore_messages;
 121         $restore->course_id=$course_id;
 122         //add new vars to restore object
 123         $restore->course_startdateoffset = $coursestartdatedateoffset;
 124         $restore->course_shortname = $currentcourseshortname;
 125
 126         // create role mappings, not sure all should be here
 127         if ($data2 = data_submitted()) {
 128             foreach ($data2 as $tempname=>$tempdata) {
 129                 if (strstr($tempname, 'roles_')) {
 130                     $temprole = explode('_', $tempname);
 131                     $oldroleid = $temprole[1];
 132                     $newroleid = $tempdata;
 133                     $restore->rolesmapping[$oldroleid] = $newroleid;
 134                 }
 135             }
 136         }
 137
 138         // default role mapping for moodle < 1.7
 139         if ($defaultteacheredit = optional_param('defaultteacheredit', 0, PARAM_INT)) {
 140             $restore->rolesmapping['defaultteacheredit'] = $defaultteacheredit;
 141         }
 142         if ($defaultteacher = optional_param('defaultteacher', 0, PARAM_INT)) {
 143             $restore->rolesmapping['defaultteacher'] = $defaultteacher;
 144         }
 145         if ($defaultstudent = optional_param('defaultstudent', 0, PARAM_INT)) {
 146             $restore->rolesmapping['defaultstudent'] = $defaultstudent;
 147         }
 148
 149     } else {
 150         //We have the object, so check if we have a new course_id
 151         //passed as parammeter
 152         $course_id = optional_param('course_id', 0, PARAM_INT);
 153         if ($course_id) {
 154             $restore->course_id=$course_id;
 155         }
 156     }
 157
 158     // pass in the course category param
 159     $cat_id = optional_param('restore_restorecatto', 0, PARAM_INT);
 160     if ($cat_id) {
 161         $restore->restore_restorecatto = $cat_id;
 162     }
 163
 164     //We have the object with data, put it in the session
 165     $SESSION->restore = $restore;
 166
 167     //From here to the end of the script, only use the $restore object
 168
 169     //Check login
 170     require_login();
 171
 172     //Check admin
 173     if (!empty($id)) {
 174         if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $id))) {
 175             error("You need to be a teacher or admin user to use this page.", "$CFG->wwwroot/login/index.php");
 176         }
 177     } else {
 178         if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 179             error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
 180         }
 181     }
 182
 183     //Check site
 184     if (!$site = get_site()) {
 185         error("Site not found!");
 186     }
 187
 188     //Depending the selected restoreto:
 189     // If user is a teacher (and not creator):
 190     //    0-Current course, deleting: Put $restore->course_id and $restore->deleting (true), create the restore object
 191     //    1-Current course, adding: Put $restore->course_id and $restore->deleting (false), create the restore object
 192     // If the uses is a creator:
 193     //    0-Existing course, deleting: Select the destination course and launch the check again, then
 194     //        put $restore->course_id and $restore->deleting (true), create the restore object.
 195     //    1-Existing course, adding: Select the destination course and launch the check again, then
 196     //        put $restore->course_id and $restore->deleting (false), create the restore object.
 197     //    2-New course: Create the restore object and launch the execute.
 198
 199     //If the user is a teacher and not a creator
 200
 201
 202     //if (!has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 203
 204     if (!user_can_create_courses()) {
 205         $restore->course_id = $id;
 206         if ($restore->restoreto == 0) {
 207             $restore->deleting = true;
 208         } else {
 209             $restore->deleting = false;
 210         }
 211     }
 212
 213     //If the user is a creator (or admin)
 214     //if (has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 215     if (user_can_create_courses()) {
 216         //Set restore->deleting as needed
 217         if ($restore->restoreto == 0) {
 218             $restore->deleting = true;
 219         } else {
 220             $restore->deleting = false;
 221         }
 222     }
 223
 224     //Now, select the course if needed
 225     //if (($restore->restoreto == 0 or $restore->restoreto == 1) and ($restore->course_id == 0) and get_capability_courses('moodle/site:restore')) {
 226     if (($restore->restoreto == 0 or $restore->restoreto == 1) and ($restore->course_id == 0)) {
 227
 228         if ($courses = get_courses("all","c.fullname","c.id,c.fullname,c.shortname,c.visible")) {
 229             print_heading(get_string("choosecourse"));
 230             print_simple_box_start("center");
 231             foreach ($courses as $course) {
 232                 if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $course->id))) {
 233                     continue;
 234                 }
 235                 if (empty($course->visible)) {
 236                     $optdimmed = ' class="dimmed" ';
 237                 } else {
 238                     $optdimmed = '';
 239                 }
 240                 echo "<a $optdimmed href=\"restore.php?course_id=$course->id&launch=check&id=$id&file=$file\">".format_string($course->fullname).' ('.format_string($course->shortname).')</a><br />'."\n";
 241             }
 242             print_simple_box_end();
 243         } else {
 244             print_heading(get_string("nocoursesyet"));
 245             print_continue("$CFG->wwwroot/$CFG->admin/index.php");
 246         }
 247     //Checks everything and execute restore
 248     } else if ((($restore->restoreto == 0 or $restore->restoreto == 1) and ($restore->course_id != 0)) or ($restore->restoreto == 2)) {
 249         //Final access control check
 250         if ($restore->course_id == 0 and !user_can_create_courses()) {
 251             error("You need to be a creator or admin to restore into new course!");
 252         } else if ($restore->course_id != 0 and !has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $restore->course_id))) {
 253             error("You need to be an edit teacher or admin to restore into selected course!");
 254         }
 255         $show_continue_button = true;
 256         //Check if we've selected any mod's user info and restore->users
 257         //is set to none. Change it to course and inform.
 258         if ($restore->users == 2) {
 259             $changed = false;
 260             $mods = $restore->mods;
 261             foreach ($mods as $mod) {
 262                 if ($mod->userinfo) {
 263                     $changed = true;
 264                 }
 265             }
 266             //If we have selected user files or messages, then users must be restored too
 267             if ($restore->user_files || $restore->messages) {
 268                 $changed = 1;
 269             }
 270             if ($changed) {
 271                 echo get_string ("noteuserschangednonetocourse");
 272                 echo "<hr noshade size=\"1\">";
 273                 $restore->users = 1;
 274             }
 275         }
 276         //Save the restore session object
 277         $SESSION->restore = $restore;
 278         if ($show_continue_button) {
 279             //Print the continue button to execute the restore NOW !!!!
 280             //All is prepared !!!
 281             echo "<div style='text-align:center'>";
 282             $hidden["launch"]             = "execute";
 283             $hidden["file"]               =  $file;
 284             $hidden["id"]                 =  $id;
 285             print_string('longtimewarning','admin');
 286
 287             if ($restore->users && !empty($info->mnet_externalusers)
 288                 && $info->mnet_externalusers === 'true') {
 289                 if ($info->original_wwwroot === $CFG->wwwroot) {
 290                     print '<p>'.get_string('mnetrestore_extusers','admin').'</p>';
 291                 } else {
 292                     print '<p>'. get_string('mnetrestore_extusers_mismatch','admin').'</p>';
 293                 }
 294             }
 295             print_single_button("restore.php", $hidden, get_string("restorecoursenow"),"post");
 296             echo "</div>";
 297         } else {
 298             //Show error
 299             error ("Something was wrong checking restore preferences");
 300         }
 301
 302     //If we are here. Something must be wrong. Debug !!!
 303     } else {
 304         print_object($restore);
 305         print_object($info);
 306         print_object($course_header);
 307         error ("Something must be wrong");
 308     }
 309
 310 ?>