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index.php
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index.php
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<?php // $Id$
/**
* file index.php
* index page to view blogs. if no blog is specified then site wide entries are shown
* if a blog id is specified then the latest entries from that blog are shown
*/
require_once('../config.php');
require_once($CFG->dirroot .'/blog/lib.php');
require_once($CFG->libdir .'/blocklib.php');
$id = optional_param('id', 0, PARAM_INT);
$start = optional_param('formstart', 0, PARAM_INT);
$userid = optional_param('userid',0,PARAM_INT);
$tag = optional_param('tag', '', PARAM_NOTAGS);
$tagid = optional_param('tagid', 0, PARAM_INT);
$postid = optional_param('postid',0,PARAM_INT);
$filtertype = optional_param('filtertype', '', PARAM_ALPHA);
$filterselect = optional_param('filterselect', 0, PARAM_INT);
$edit = optional_param('edit', -1, PARAM_BOOL);
$courseid = optional_param('courseid', 0, PARAM_INT); // needed for user tabs and course tracking
if (empty($CFG->bloglevel)) {
error('Blogging is disabled!');
}
$sitecontext = get_context_instance(CONTEXT_SYSTEM, SITEID);
// change block edit staus if not guest and logged in
if (isloggedin() and !isguest() and $edit != -1) {
$SESSION->blog_editing_enabled = $edit;
}
if (empty($filtertype)) {
if ($userid) { // default to user if specified
$filtertype = 'user';
$filterselect = $userid;
} else if (has_capability('moodle/blog:view', $sitecontext) and $CFG->bloglevel > BLOG_USER_LEVEL) {
$filtertype = 'site';
$filterselect = '';
} else {
// user might have capability to write blogs, but not read blogs at site level
// users might enter this url manually without parameters
$filtertype = 'user';
$filterselect = $USER->id;
}
}
/// check access and prepare filters
switch ($filtertype) {
case 'site':
if ($CFG->bloglevel < BLOG_SITE_LEVEL) {
error('Site blogs is not enabled');
}
if ($CFG->bloglevel < BLOG_GLOBAL_LEVEL) {
require_login();
}
if (!has_capability('moodle/blog:view', $sitecontext)) {
error('You do not have the required permissions to view all site blogs');
}
break;
case 'course':
if ($CFG->bloglevel < BLOG_COURSE_LEVEL) {
error('Course blogs is not enabled');
}
if (!$course = get_record('course', 'id', $filterselect)) {
error('Incorrect course id specified');
}
$courseid = $course->id;
$coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
require_login($course->id);
if (!has_capability('moodle/blog:view', $coursecontext)) {
error('You do not have the required permissions to view blogs in this course');
}
break;
case 'group':
if ($CFG->bloglevel < BLOG_GROUP_LEVEL) {
error('Group blogs is not enabled');
}
// fix for MDL-9268
if (! $group = groups_get_group($filterselect)) { //TODO:check.
error('Incorrect group id specified');
}
if (!$course = get_record('course', 'id', $group->courseid)) {
error('Incorrect course id specified');
}
$coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
$courseid = $course->id;
require_login($course->id);
if (!has_capability('moodle/blog:view', $coursecontext)) {
error('You do not have the required permissions to view blogs in this course/group');
}
if (groupmode($course) == SEPARATEGROUPS
and !has_capability('moodle/site:accessallgroups', $coursecontext)) {
if (!ismember($filterselect)) {
error ('You are not a member of this course group');
}
}
break;
case 'user':
if ($CFG->bloglevel < BLOG_USER_LEVEL) {
error('Blogs is not enabled');
}
if (!$user = get_record('user', 'id', $filterselect)) {
error('Incorrect user id');
}
if ($USER->id == $filterselect) {
if (!has_capability('moodle/blog:create', $sitecontext)
and !has_capability('moodle/blog:view', $sitecontext)) {
error('You do not have your own blog, sorry.');
}
} else {
$personalcontext = get_context_instance(CONTEXT_USER, $filterselect);
if (!has_capability('moodle/blog:view', $sitecontext)
and !has_capability('moodle/user:readuserblogs', $personalcontext)) {
error('You do not have the required permissions to read user blogs');
}
if (!blog_user_can_view_user_post($filterselect)) {
error('You can not view blog of this user, sorry.');
}
}
$userid = $filterselect;
break;
default:
error('Incorrect blog filter type specified');
break;
}
if (empty($courseid)) {
$courseid = SITEID;
}
include($CFG->dirroot .'/blog/header.php');
blog_print_html_formatted_entries($postid, $filtertype, $filterselect, $tagid, $tag);
add_to_log($courseid, 'blog', 'view', 'index.php?filtertype='.$filtertype.'&filterselect='.$filterselect.'&postid='.$postid.'&tagid='.$tagid.'&tag='.$tag, 'view blog entry');
include($CFG->dirroot .'/blog/footer.php');
?>