/blog/index.php
PHP | 293 lines | 217 code | 47 blank | 29 comment | 90 complexity | 7249cbdaea59ba1eab5d399c83ebf81e MD5 | raw file
- <?php
- // This file is part of Moodle - http://moodle.org/
- //
- // Moodle is free software: you can redistribute it and/or modify
- // it under the terms of the GNU General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // Moodle is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License
- // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
- /**
- * 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(__DIR__ . '/../config.php');
- require_once($CFG->dirroot .'/blog/lib.php');
- require_once($CFG->dirroot .'/blog/locallib.php');
- require_once($CFG->dirroot .'/course/lib.php');
- require_once($CFG->dirroot .'/comment/lib.php');
- $id = optional_param('id', null, PARAM_INT);
- $start = optional_param('formstart', 0, PARAM_INT);
- $tag = optional_param('tag', '', PARAM_NOTAGS);
- $userid = optional_param('userid', null, PARAM_INT);
- $tagid = optional_param('tagid', null, PARAM_INT);
- $modid = optional_param('modid', null, PARAM_INT);
- $entryid = optional_param('entryid', null, PARAM_INT);
- $groupid = optional_param('groupid', null, PARAM_INT);
- $courseid = optional_param('courseid', null, PARAM_INT);
- $search = optional_param('search', null, PARAM_RAW);
- comment::init();
- $urlparams = compact('id', 'start', 'tag', 'userid', 'tagid', 'modid', 'entryid', 'groupid', 'courseid', 'search');
- foreach ($urlparams as $var => $val) {
- if (empty($val)) {
- unset($urlparams[$var]);
- }
- }
- $PAGE->set_url('/blog/index.php', $urlparams);
- // Correct tagid if a text tag is provided as a param.
- if (!empty($tag)) {
- if ($tagrec = $DB->get_record('tag', array('name' => $tag))) {
- $tagid = $tagrec->id;
- } else {
- unset($tagid);
- }
- }
- // Set the userid to the entry author if we have the entry ID.
- if ($entryid and !isset($userid)) {
- $entry = new blog_entry($entryid);
- $userid = $entry->userid;
- }
- if (isset($userid) && empty($courseid) && empty($modid)) {
- $context = context_user::instance($userid);
- } else if (!empty($courseid) && $courseid != SITEID) {
- $context = context_course::instance($courseid);
- } else {
- $context = context_system::instance();
- }
- $PAGE->set_context($context);
- $sitecontext = context_system::instance();
- if (isset($userid) && $USER->id == $userid) {
- $blognode = $PAGE->navigation->find('siteblog', null);
- if ($blognode) {
- $blognode->make_inactive();
- }
- }
- // Check basic permissions.
- if ($CFG->bloglevel == BLOG_GLOBAL_LEVEL) {
- // Everybody can see anything - no login required unless site is locked down using forcelogin.
- if ($CFG->forcelogin) {
- require_login();
- }
- } else if ($CFG->bloglevel == BLOG_SITE_LEVEL) {
- // Users must log in and can not be guests.
- require_login();
- if (isguestuser()) {
- // They must have entered the url manually.
- print_error('noguest');
- }
- } else if ($CFG->bloglevel == BLOG_USER_LEVEL) {
- // Users can see own blogs only! with the exception of people with special cap.
- require_login();
- } else {
- // Weird!
- print_error('blogdisable', 'blog');
- }
- if (empty($CFG->enableblogs)) {
- print_error('blogdisable', 'blog');
- }
- // Add courseid if modid or groupid is specified: This is used for navigation and title.
- if (!empty($modid) && empty($courseid)) {
- $courseid = $DB->get_field('course_modules', 'course', array('id' => $modid));
- }
- if (!empty($groupid) && empty($courseid)) {
- $courseid = $DB->get_field('groups', 'courseid', array('id' => $groupid));
- }
- if (!$userid && has_capability('moodle/blog:view', $sitecontext) && $CFG->bloglevel > BLOG_USER_LEVEL) {
- if ($entryid) {
- if (!$entryobject = $DB->get_record('post', array('id' => $entryid))) {
- print_error('nosuchentry', 'blog');
- }
- $userid = $entryobject->userid;
- }
- } else if (!$userid) {
- $userid = $USER->id;
- }
- if (!empty($modid)) {
- if ($CFG->bloglevel < BLOG_SITE_LEVEL) {
- print_error(get_string('nocourseblogs', 'blog'));
- }
- if (!$mod = $DB->get_record('course_modules', array('id' => $modid))) {
- print_error(get_string('invalidmodid', 'blog'));
- }
- $courseid = $mod->course;
- }
- if ((empty($courseid) ? true : $courseid == SITEID) && empty($userid)) {
- if ($CFG->bloglevel < BLOG_SITE_LEVEL) {
- print_error('siteblogdisable', 'blog');
- }
- if (!has_capability('moodle/blog:view', $sitecontext)) {
- print_error('cannotviewsiteblog', 'blog');
- }
- $COURSE = $DB->get_record('course', array('format' => 'site'));
- $courseid = $COURSE->id;
- }
- if (!empty($courseid)) {
- if (!$course = $DB->get_record('course', array('id' => $courseid))) {
- print_error('invalidcourseid');
- }
- $courseid = $course->id;
- require_login($course);
- if (!has_capability('moodle/blog:view', $sitecontext)) {
- print_error('cannotviewcourseblog', 'blog');
- }
- } else {
- $coursecontext = context_course::instance(SITEID);
- }
- if (!empty($groupid)) {
- if ($CFG->bloglevel < BLOG_SITE_LEVEL) {
- print_error('groupblogdisable', 'blog');
- }
- if (! $group = groups_get_group($groupid)) {
- print_error(get_string('invalidgroupid', 'blog'));
- }
- if (!$course = $DB->get_record('course', array('id' => $group->courseid))) {
- print_error('invalidcourseid');
- }
- $coursecontext = context_course::instance($course->id);
- $courseid = $course->id;
- require_login($course);
- if (!has_capability('moodle/blog:view', $sitecontext)) {
- print_error(get_string('cannotviewcourseorgroupblog', 'blog'));
- }
- if (groups_get_course_groupmode($course) == SEPARATEGROUPS && !has_capability('moodle/site:accessallgroups', $coursecontext)) {
- if (!groups_is_member($groupid)) {
- print_error('notmemberofgroup');
- }
- }
- }
- if (!empty($userid)) {
- if ($CFG->bloglevel < BLOG_USER_LEVEL) {
- print_error('blogdisable', 'blog');
- }
- if (!$user = $DB->get_record('user', array('id' => $userid))) {
- print_error('invaliduserid');
- }
- if ($user->deleted) {
- echo $OUTPUT->header();
- echo $OUTPUT->heading(get_string('userdeleted'));
- echo $OUTPUT->footer();
- die;
- }
- if ($USER->id == $userid) {
- if (!has_capability('moodle/blog:create', $sitecontext)
- && !has_capability('moodle/blog:view', $sitecontext)) {
- print_error('donothaveblog', 'blog');
- }
- } else {
- if (!has_capability('moodle/blog:view', $sitecontext) || !blog_user_can_view_user_entry($userid)) {
- print_error('cannotviewcourseblog', 'blog');
- }
- $PAGE->navigation->extend_for_user($user);
- }
- }
- $courseid = (empty($courseid)) ? SITEID : $courseid;
- $blogheaders = blog_get_headers();
- $rsscontext = null;
- $filtertype = null;
- $thingid = null;
- $rsstitle = '';
- if ($CFG->enablerssfeeds) {
- list($thingid, $rsscontext, $filtertype) = blog_rss_get_params($blogheaders['filters']);
- if (empty($rsscontext)) {
- $rsscontext = context_system::instance();
- }
- $rsstitle = $blogheaders['heading'];
- // Check we haven't started output by outputting an error message.
- if ($PAGE->state == moodle_page::STATE_BEFORE_HEADER) {
- blog_rss_add_http_header($rsscontext, $rsstitle, $filtertype, $thingid, $tagid);
- }
- }
- $usernode = $PAGE->navigation->find('user'.$userid, null);
- if ($usernode && $courseid != SITEID) {
- $courseblogsnode = $PAGE->navigation->find('courseblogs', null);
- if ($courseblogsnode) {
- $courseblogsnode->remove();
- }
- $blogurl = new moodle_url($PAGE->url);
- $blognode = $usernode->add(get_string('blogscourse', 'blog'), $blogurl);
- $blognode->make_active();
- }
- if ($courseid != SITEID) {
- $PAGE->set_heading($course->fullname);
- echo $OUTPUT->header();
- if (!empty($user)) {
- $headerinfo = array('heading' => fullname($user), 'user' => $user);
- echo $OUTPUT->context_header($headerinfo, 2);
- }
- } else if (isset($userid)) {
- $PAGE->set_heading(fullname($user));
- echo $OUTPUT->header();
- } else if ($courseid == SITEID) {
- echo $OUTPUT->header();
- }
- echo $OUTPUT->heading($blogheaders['heading'], 2);
- $bloglisting = new blog_listing($blogheaders['filters']);
- $bloglisting->print_entries();
- if ($CFG->enablerssfeeds) {
- blog_rss_print_link($rsscontext, $filtertype, $thingid, $tagid, get_string('rssfeed', 'blog'));
- }
- echo $OUTPUT->footer();
- $eventparams = array(
- 'other' => array('entryid' => $entryid, 'tagid' => $tagid, 'userid' => $userid, 'modid' => $modid, 'groupid' => $groupid,
- 'search' => $search, 'fromstart' => $start)
- );
- if (!empty($userid)) {
- $eventparams['relateduserid'] = $userid;
- }
- $eventparams['other']['courseid'] = ($courseid === SITEID) ? 0 : $courseid;
- $event = \core\event\blog_entries_viewed::create($eventparams);
- $event->trigger();