From: skodak <skodak>
Date: Thu, 7 Dec 2006 20:06:11 +0000 (+0000)
Subject: MDL-7839 Fixed use of capabilities in database entry rating
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=3b827a7e753654e90101440621494c8d3c1b98ed;p=moodle.git

MDL-7839 Fixed use of capabilities in database entry rating
---

diff --git a/mod/data/lib.php b/mod/data/lib.php
index 1fe7b9e7d7..c513aeb5a9 100755
--- a/mod/data/lib.php
+++ b/mod/data/lib.php
@@ -933,47 +933,36 @@ function data_print_ratings($data, $record) {
     $cm = get_coursemodule_from_instance('data', $data->id);
     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 
-    $ratingsmenuused = false;
-    if ($data->assessed and !empty($USER->id)) {
-        if ($ratings->scale = make_grades_menu($data->scale)) {
-            $ratings->allow = ($data->assessed and has_capability('mod/data:rate', $context));
-            if ($ratings->allow) {
-                echo '<div class="ratings" align="center">';
-                echo '<form name="form" method="post" action="rate.php">';
-                $useratings = true;
-
-                if ($useratings) {
-                    if (has_capability('mod/data:rate', $context) and !data_isowner($record->id)) {
-                        data_print_ratings_mean($record->id, $ratings->scale, has_capability('mod/data:rate', $context));
-                        if (!empty($ratings->allow)) {
-                            echo '&nbsp;';
-                            data_print_rating_menu($record->id, $USER->id, $ratings->scale);
-                            $ratingsmenuused = true;
-                        }
+    if ($data->assessed and !empty($USER->id)
+      and (has_capability('mod/data:rate', $context) or has_capability('mod/data:viewrating', $context) or data_isowner($record->id))) {
+        if ($ratingsscale = make_grades_menu($data->scale)) {
+            $ratingsmenuused = false;
 
-                    } else if (data_isowner($record->id)) {
-                        data_print_ratings_mean($record->id, $ratings->scale, true);
+            echo '<div class="ratings" align="center">';
+            echo '<form name="form" method="post" action="rate.php">';
 
-                    } else if (!empty($ratings->allow) ) {
-                        data_print_rating_menu($record->id, $USER->id, $ratings->scale);
-                        $ratingsmenuused = true;
-                    }
-                }
+            if (has_capability('mod/data:rate', $context) and !data_isowner($record->id)) {
+                data_print_ratings_mean($record->id, $ratingsscale, has_capability('mod/data:viewrating', $context));
+                echo '&nbsp;';
+                data_print_rating_menu($record->id, $USER->id, $ratingsscale);
+                $ratingsmenuused = true;
 
-                if ($data->scale < 0) {
-                    if ($scale = get_record("scale", "id", abs($data->scale))) {
-                        print_scale_menu_helpbutton($data->course, $scale );
-                    }
-                }
+            } else {
+                data_print_ratings_mean($record->id, $ratingsscale, true);
+            }
 
-                if ($ratingsmenuused) {
-                    echo '<input type="hidden" name="id" value="'.$data->course.'" />';
-                    echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
-                    echo "<input type=\"submit\" value=\"".get_string("sendinratings", "data")."\" />";
+            if ($data->scale < 0) {
+                if ($scale = get_record('scale', 'id', abs($data->scale))) {
+                    print_scale_menu_helpbutton($data->course, $scale );
                 }
-                echo "</form>";
-                echo '</div>';
             }
+
+            if ($ratingsmenuused) {
+                echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
+                echo '<input type="submit" value="'.get_string('sendinratings', 'data').'" />';
+            }
+            echo '</form>';
+            echo '</div>';
         }
     }
 }
diff --git a/mod/data/rate.php b/mod/data/rate.php
index 618ef77c87..bb89516250 100755
--- a/mod/data/rate.php
+++ b/mod/data/rate.php
@@ -1,54 +1,90 @@
 <?php  // $Id$
-    require_once("../../config.php");
-    require_once("lib.php");
+    require_once('../../config.php');
+    require_once('lib.php');
 
-    $id = required_param('id',PARAM_INT);  // The course these ratings are part of
-
-    if (! $course = get_record("course", "id", $id)) {
-        error("Course ID was incorrect");
+    if (!($data = data_submitted($CFG->wwwroot.'/mod/data/view.php')) or !confirm_sesskey()) {
+        error("This page was not accessed correctly");
     }
 
-    require_login($course->id);
+    $count = 0;
 
-    if (isguest()) {
-        error("Guests are not allowed to rate posts.", $_SERVER["HTTP_REFERER"]);
-    }
+    foreach ((array)$data as $recordid => $rating) {
+        if (!is_numeric($recordid)) {
+            continue;
+        }
+
+        if (!$record = get_record('data_records', 'id', $recordid)) {
+            error("Record ID is incorrect");
+        }
+        if (!$data = get_record('data', 'id', $record->dataid)) {
+            error("Data ID is incorrect");
+        }
+        if (!$course = get_record('course', 'id', $data->course)) {
+            error("Course is misconfigured");
+        }
+        if (!$cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
+            error("Course Module ID was incorrect");
+        }
 
-    $returntoview = false;
+        require_login($course->id, false, $cm);
 
-    if (($data = data_submitted($CFG->wwwroot.'/mod/data/view.php')) and confirm_sesskey()) {
+        $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 
-        $lastrecordid = 0;
+        if (isguest()) {
+            error("Guests are not allowed to rate posts");
+        }
 
-        foreach ((array)$data as $recordid => $rating) {
-            if (($recordid == 'id') || ($recordid=='sesskey')) {
-                continue;
-            }
+        if (!$data->assessed or !has_capability('mod/data:rate', $context)) {
+            error("Not allowed to rate.");
+        }
 
-            $recordid = (int)$recordid;
-            $lastrecordid = $recordid;
-            if ($oldrating = get_record("data_ratings", "userid", $USER->id, "recordid", $recordid)) {
-                if ($rating != $oldrating->rating) {
-                    $oldrating->rating = $rating;
-                    if (! update_record("data_ratings", $oldrating)) {
-                        error("Could not update an old rating ($recordid = $rating)");
-                    }
-                }
-            } else if ($rating) {
-                unset($newrating);
-                $newrating->userid = $USER->id;
-                $newrating->recordid = $recordid;
-                $newrating->rating = $rating;
-                if (! insert_record("data_ratings", $newrating)) {
-                    error("Could not insert a new rating ($recordid = $rating)");
+        if ($record->userid == $USER->id) {
+            error("You can not rate your own data");
+        }
+
+        if (!$scale = make_grades_menu($data->scale)) {
+            error("Icorrect scale");
+        }
+
+        if (!array_key_exists($rating, $scale)) {
+            error("Icorrect rating value");
+        }
+
+        // input validation ok
+
+        $count++;
+
+        if ($oldrating = get_record('data_ratings', 'userid', $USER->id, 'recordid', $record->id)) {
+            if ($rating != $oldrating->rating) {
+                $oldrating->rating = $rating;
+                if (! update_record('data_ratings', $oldrating)) {
+                    error("Could not update an old rating ($record->id = $rating)");
                 }
             }
+        } else if ($rating) {
+            $newrating = new object();
+            $newrating->userid   = $USER->id;
+            $newrating->recordid = $record->id;
+            $newrating->rating   = $rating;
+            if (! insert_record('data_ratings', $newrating)) {
+                error("Could not insert a new rating ($record->id = $rating)");
+            }
         }
+    }
 
-        redirect($_SERVER["HTTP_REFERER"], get_string("ratingssaved", "data"));
-    } else {
-        error("This page was not accessed correctly");
+    if ($count == 0) {
+        error("Incorrect submitted ratings data");
     }
 
+    if (!empty($_SERVER['HTTP_REFERER'])) {
+        redirect($_SERVER['HTTP_REFERER'], get_string('ratingssaved', 'data'));
+    } else {
+        // try to guess where to return
+        if ($count == 1) {
+            redirect('view.php?mode=single&amp;rid='.$record->id, get_string('ratingssaved', 'data'));
+        } else {
+            redirect('view.php?d='.$data->id, get_string('ratingssaved', 'data'));
+        }
+    }
 
 ?>
diff --git a/mod/data/report.php b/mod/data/report.php
index 2e0098d1e3..197a399447 100755
--- a/mod/data/report.php
+++ b/mod/data/report.php
@@ -6,14 +6,27 @@
     require_once("lib.php");
 
     $id   = required_param('id',PARAM_INT);
-    $sort = optional_param('sort', '', PARAM_RAW);
+    $sort = optional_param('sort', '', PARAM_ALPHA);
 
-    if (!$record = get_record('data_records','id',$id)) {
-        error("rating ID was incorrect");
+    if (!$record = get_record('data_records', 'id', $id)) {
+        error("Record ID is incorrect");
     }
-    
-    if (!$data = get_record('data','id',$record->dataid)) {
-        error("rating ID was incorrect");
+    if (!$data = get_record('data', 'id', $record->dataid)) {
+        error("Data ID is incorrect");
+    }
+    if (!$course = get_record('course', 'id', $data->course)) {
+        error("Course is misconfigured");
+    }
+    if (!$cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
+        error("Course Module ID was incorrect");
+    }
+
+    require_login($course->id, false, $cm);
+
+    $context = get_context_instance(CONTEXT_MODULE, $cm->id);
+
+    if (!data_isowner($record->id) and !has_capability('mod/data:viewrating', $context) and !has_capability('mod/data:rate', $context)) {
+        error("You can not view ratings");
     }
 
     switch ($sort) {