PHP qa_call_override函数代码示例

function qa_send_email($params)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    //	@error_log(print_r($params, true));
    require_once QA_INCLUDE_DIR . 'vendor/PHPMailer/PHPMailerAutoload.php';
    $mailer = new PHPMailer();
    $mailer->CharSet = 'utf-8';
    $mailer->From = $params['fromemail'];
    $mailer->Sender = $params['fromemail'];
    $mailer->FromName = $params['fromname'];
    $mailer->AddAddress($params['toemail'], $params['toname']);
    $mailer->Subject = $params['subject'];
    $mailer->Body = $params['body'];
    if ($params['html']) {
        $mailer->IsHTML(true);
    }
    if (qa_opt('smtp_active')) {
        $mailer->IsSMTP();
        $mailer->Host = qa_opt('smtp_address');
        $mailer->Port = qa_opt('smtp_port');
        if (qa_opt('smtp_secure')) {
            $mailer->SMTPSecure = qa_opt('smtp_secure');
        }
        if (qa_opt('smtp_authenticate')) {
            $mailer->SMTPAuth = true;
            $mailer->Username = qa_opt('smtp_username');
            $mailer->Password = qa_opt('smtp_password');
        }
    }
    return $mailer->Send();
}

function qa_db_blob_exists($blobid)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    return qa_db_read_one_value(qa_db_query_sub('SELECT COUNT(*) FROM ^blobs WHERE blobid=#', $blobid)) > 0;
}

function qa_q_list_page_content($questions, $pagesize, $start, $count, $sometitle, $nonetitle, $navcategories, $categoryid, $categoryqcount, $categorypathprefix, $feedpathprefix, $suggest, $pagelinkparams = null, $categoryparams = null, $dummy = null)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    require_once QA_INCLUDE_DIR . 'app/format.php';
    require_once QA_INCLUDE_DIR . 'app/updates.php';
    $userid = qa_get_logged_in_userid();
    //	Chop down to size, get user information for display
    if (isset($pagesize)) {
        $questions = array_slice($questions, 0, $pagesize);
    }
    $usershtml = qa_userids_handles_html(qa_any_get_userids_handles($questions));
    //	Prepare content for theme
    $qa_content = qa_content_prepare(true, array_keys(qa_category_path($navcategories, $categoryid)));
    $qa_content['q_list']['form'] = array('tags' => 'method="post" action="' . qa_self_html() . '"', 'hidden' => array('code' => qa_get_form_security_code('vote')));
    $qa_content['q_list']['qs'] = array();
    if (count($questions)) {
        $qa_content['title'] = $sometitle;
        $defaults = qa_post_html_defaults('Q');
        if (isset($categorypathprefix)) {
            $defaults['categorypathprefix'] = $categorypathprefix;
        }
        foreach ($questions as $question) {
            $fields = qa_any_to_q_html_fields($question, $userid, qa_cookie_get(), $usershtml, null, qa_post_html_options($question, $defaults));
            if (!empty($fields['raw']['closedbyid'])) {
                $fields['closed'] = array('state' => qa_lang_html('main/closed'));
            }
            $qa_content['q_list']['qs'][] = $fields;
        }
    } else {
        $qa_content['title'] = $nonetitle;
    }
    if (isset($userid) && isset($categoryid)) {
        $favoritemap = qa_get_favorite_non_qs_map();
        $categoryisfavorite = @$favoritemap['category'][$navcategories[$categoryid]['backpath']];
        $qa_content['favorite'] = qa_favorite_form(QA_ENTITY_CATEGORY, $categoryid, $categoryisfavorite, qa_lang_sub($categoryisfavorite ? 'main/remove_x_favorites' : 'main/add_category_x_favorites', $navcategories[$categoryid]['title']));
    }
    if (isset($count) && isset($pagesize)) {
        $qa_content['page_links'] = qa_html_page_links(qa_request(), $start, $pagesize, $count, qa_opt('pages_prev_next'), $pagelinkparams);
    }
    if (empty($qa_content['page_links'])) {
        $qa_content['suggest_next'] = $suggest;
    }
    if (qa_using_categories() && count($navcategories) && isset($categorypathprefix)) {
        $qa_content['navigation']['cat'] = qa_category_navigation($navcategories, $categoryid, $categorypathprefix, $categoryqcount, $categoryparams);
    }
    if (isset($feedpathprefix) && (qa_opt('feed_per_category') || !isset($categoryid))) {
        $qa_content['feed'] = array('url' => qa_path_html(qa_feed_request($feedpathprefix . (isset($categoryid) ? '/' . qa_category_path_request($navcategories, $categoryid) : ''))), 'label' => strip_tags($sometitle));
    }
    return $qa_content;
}

function qa_db_cache_get($type, $cacheid)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    $content = qa_db_read_one_value(qa_db_query_sub('SELECT content FROM ^cache WHERE type=$ AND cacheid=#', $type, $cacheid), true);
    if (isset($content)) {
        qa_db_query_sub('UPDATE ^cache SET lastread=NOW() WHERE type=$ AND cacheid=#', $type, $cacheid);
    }
    return $content;
}

function qa_cookie_get_create()
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    require_once QA_INCLUDE_DIR . 'qa-db-cookies.php';
    $cookieid = qa_cookie_get();
    if (isset($cookieid) && qa_db_cookie_exists($cookieid)) {
    } else {
        $cookieid = qa_db_cookie_create(qa_remote_ip_address());
    }
    setcookie('qa_id', $cookieid, time() + 86400 * 365, '/', QA_COOKIE_DOMAIN);
    $_COOKIE['qa_id'] = $cookieid;
    return $cookieid;
}

function qa_db_hotness_update($firstpostid, $lastpostid = null, $viewincrement = false)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    if (qa_should_update_counts()) {
        if (!isset($lastpostid)) {
            $lastpostid = $firstpostid;
        }
        $query = "UPDATE ^posts AS x, (SELECT parents.postid, parents.created AS qcreated, COALESCE(MAX(children.created), parents.created) as acreated, COUNT(children.postid) AS acount, parents.netvotes, parents.views FROM ^posts AS parents LEFT JOIN ^posts AS children ON parents.postid=children.parentid AND children.type='A' WHERE parents.postid>=# AND parents.postid<=# AND LEFT(parents.type, 1)='Q' GROUP BY postid) AS a SET x.hotness=(" . '((TO_DAYS(a.qcreated)-734138)*86400.0+TIME_TO_SEC(a.qcreated))*# + ' . '((TO_DAYS(a.acreated)-734138)*86400.0+TIME_TO_SEC(a.acreated))*# + ' . '(a.acount+0.0)*# + ' . '(a.netvotes+0.0)*# + ' . '(a.views+0.0+#)*#' . ')' . ($viewincrement ? ', x.views=x.views+1, x.lastviewip=INET_ATON($)' : '') . ' WHERE x.postid=a.postid';
        //	Additional multiples based on empirical analysis of activity on Q2A meta site to give approx equal influence for all factors
        $arguments = array($firstpostid, $lastpostid, qa_opt('hot_weight_q_age'), qa_opt('hot_weight_a_age'), qa_opt('hot_weight_answers') * 160000, qa_opt('hot_weight_votes') * 160000, $viewincrement ? 1 : 0, qa_opt('hot_weight_views') * 4000);
        if ($viewincrement) {
            $arguments[] = qa_remote_ip_address();
        }
        qa_db_query_raw(qa_db_apply_sub($query, $arguments));
    }
}

function qa_get_max_upload_size()
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    $mindb = 16777215;
    // from MEDIUMBLOB column type
    $minphp = trim(ini_get('upload_max_filesize'));
    switch (strtolower(substr($minphp, -1))) {
        case 'g':
            $minphp *= 1024;
        case 'm':
            $minphp *= 1024;
        case 'k':
            $minphp *= 1024;
    }
    return min($mindb, $minphp);
}

function qa_wall_posts_add_rules($usermessages, $start)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    $userid = qa_get_logged_in_userid();
    $userdeleteall = !(qa_user_permit_error('permit_hide_show') || qa_user_permit_error('permit_delete_hidden'));
    // reuse "Hiding or showing any post" and "Deleting hidden posts" permissions
    $userrecent = $start == 0 && isset($userid);
    // User can delete all of the recent messages they wrote on someone's wall...
    foreach ($usermessages as $key => $message) {
        if ($message['fromuserid'] != $userid) {
            $userrecent = false;
        }
        // ... until we come across one that they didn't write (which could be a reply)
        $usermessages[$key]['deleteable'] = $message['touserid'] == $userid || $userrecent && $message['fromuserid'] == $userid || $userdeleteall;
        // if the user has enough permissions  to delete from any wall
    }
    return $usermessages;
}

function qa_page_q_post_rules($post, $parentpost = null, $siblingposts = null, $childposts = null)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    $userid = qa_get_logged_in_userid();
    $cookieid = qa_cookie_get();
    $rules['isbyuser'] = qa_post_is_by_user($post, $userid, $cookieid);
    $rules['queued'] = substr($post['type'], 1) == '_QUEUED';
    $rules['closed'] = $post['basetype'] == 'Q' && (isset($post['closedbyid']) || isset($post['selchildid']) && qa_opt('do_close_on_select'));
    //	Cache some responses to the user permission checks
    $permiterror_post_q = qa_user_permit_error('permit_post_q');
    $permiterror_post_a = qa_user_permit_error('permit_post_a');
    $permiterror_post_c = qa_user_permit_error('permit_post_c');
    $permiterror_edit = qa_user_permit_error($post['basetype'] == 'Q' ? 'permit_edit_q' : ($post['basetype'] == 'A' ? 'permit_edit_a' : 'permit_edit_c'));
    $permiterror_retagcat = qa_user_permit_error('permit_retag_cat');
    $permiterror_hide_show = qa_user_permit_error($rules['isbyuser'] ? null : 'permit_hide_show');
    $permiterror_close_open = qa_user_permit_error($rules['isbyuser'] ? null : 'permit_close_q');
    $permiterror_moderate = qa_user_permit_error('permit_moderate');
    //	General permissions
    $rules['authorlast'] = !isset($post['lastuserid']) || $post['lastuserid'] === $post['userid'];
    $rules['viewable'] = $post['hidden'] ? !$permiterror_hide_show : ($rules['queued'] ? $rules['isbyuser'] || !$permiterror_moderate : true);
    //	Answer, comment and edit might show the button even if the user still needs to do something (e.g. log in)
    $rules['answerbutton'] = $post['type'] == 'Q' && $permiterror_post_a != 'level' && !$rules['closed'] && (qa_opt('allow_self_answer') || !$rules['isbyuser']);
    $rules['commentbutton'] = ($post['type'] == 'Q' || $post['type'] == 'A') && $permiterror_post_c != 'level' && qa_opt($post['type'] == 'Q' ? 'comment_on_qs' : 'comment_on_as');
    $rules['commentable'] = $rules['commentbutton'] && !$permiterror_post_c;
    $rules['editbutton'] = !$post['hidden'] && ($rules['isbyuser'] || $permiterror_edit != 'level' && !$rules['queued']) && !$rules['closed'];
    $rules['editable'] = $rules['editbutton'] && ($rules['isbyuser'] || !$permiterror_edit);
    $rules['retagcatbutton'] = $post['basetype'] == 'Q' && (qa_using_tags() || qa_using_categories()) && !$post['hidden'] && ($rules['isbyuser'] || $permiterror_retagcat != 'level');
    $rules['retagcatable'] = $rules['retagcatbutton'] && ($rules['isbyuser'] || !$permiterror_retagcat);
    if ($rules['editbutton'] && $rules['retagcatbutton']) {
        // only show one button since they lead to the same form
        if ($rules['retagcatable'] && !$rules['editable']) {
            $rules['editbutton'] = false;
        } else {
            $rules['retagcatbutton'] = false;
        }
    }
    $rules['aselectable'] = $post['type'] == 'Q' && !qa_user_permit_error($rules['isbyuser'] ? null : 'permit_select_a');
    $rules['flagbutton'] = qa_opt('flagging_of_posts') && !$rules['isbyuser'] && !$post['hidden'] && !$rules['queued'] && !@$post['userflag'] && qa_user_permit_error('permit_flag') != 'level';
    $rules['flagtohide'] = $rules['flagbutton'] && !qa_user_permit_error('permit_flag') && $post['flagcount'] + 1 >= qa_opt('flagging_hide_after');
    $rules['unflaggable'] = @$post['userflag'] && !$post['hidden'];
    $rules['clearflaggable'] = $post['flagcount'] >= (@$post['userflag'] ? 2 : 1) && !qa_user_permit_error('permit_hide_show');
    //	Other actions only show the button if it's immediately possible
    $notclosedbyother = !($rules['closed'] && isset($post['closedbyid']) && !$rules['authorlast']);
    $nothiddenbyother = !($post['hidden'] && !$rules['authorlast']);
    $rules['closeable'] = qa_opt('allow_close_questions') && $post['type'] == 'Q' && !$rules['closed'] && !$permiterror_close_open;
    $rules['reopenable'] = $rules['closed'] && isset($post['closedbyid']) && !$permiterror_close_open && !$post['hidden'] && ($notclosedbyother || !qa_user_permit_error('permit_close_q'));
    // cannot reopen a question if it's been hidden, or if it was closed by someone else and you don't have global closing permissions
    $rules['moderatable'] = $rules['queued'] && !$permiterror_moderate;
    $rules['hideable'] = !$post['hidden'] && ($rules['isbyuser'] || !$rules['queued']) && !$permiterror_hide_show && ($notclosedbyother || !qa_user_permit_error('permit_hide_show'));
    // cannot hide a question if it was closed by someone else and you don't have global hiding permissions
    $rules['reshowable'] = $post['hidden'] && !$permiterror_hide_show && !qa_user_moderation_reason() && ($nothiddenbyother && !$post['flagcount'] || !qa_user_permit_error('permit_hide_show'));
    // cannot reshow a question if it was hidden by someone else, or if it has flags - unless you have global hiding permissions
    $rules['deleteable'] = $post['hidden'] && !qa_user_permit_error('permit_delete_hidden');
    $rules['claimable'] = !isset($post['userid']) && isset($userid) && strlen(@$post['cookieid']) && strcmp(@$post['cookieid'], $cookieid) == 0 && !($post['basetype'] == 'Q' ? $permiterror_post_q : ($post['basetype'] == 'A' ? $permiterror_post_a : $permiterror_post_c));
    $rules['followable'] = $post['type'] == 'A' ? qa_opt('follow_on_as') : false;
    //	Check for claims that could break rules about self answering and mulltiple answers
    if ($rules['claimable'] && $post['basetype'] == 'A') {
        if (!qa_opt('allow_self_answer') && isset($parentpost) && qa_post_is_by_user($parentpost, $userid, $cookieid)) {
            $rules['claimable'] = false;
        }
        if (isset($siblingposts) && !qa_opt('allow_multi_answers')) {
            foreach ($siblingposts as $siblingpost) {
                if ($siblingpost['parentid'] == $post['parentid'] && $siblingpost['basetype'] == 'A' && qa_post_is_by_user($siblingpost, $userid, $cookieid)) {
                    $rules['claimable'] = false;
                }
            }
        }
    }
    //	Now make any changes based on the child posts
    if (isset($childposts)) {
        foreach ($childposts as $childpost) {
            if ($childpost['parentid'] == $post['postid'] && ($childpost['basetype'] == 'A' || $childpost['basetype'] == 'C')) {
                $rules['deleteable'] = false;
                if ($childpost['basetype'] == 'A' && qa_post_is_by_user($childpost, $userid, $cookieid)) {
                    if (!qa_opt('allow_multi_answers')) {
                        $rules['answerbutton'] = false;
                    }
                    if (!qa_opt('allow_self_answer')) {
                        $rules['claimable'] = false;
                    }
                }
            }
        }
    }
    //	Return the resulting rules
    return $rules;
}

function qa_get_gravatar_html($email, $size)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    if ($size > 0) {
        return '<img src="' . (qa_is_https_probably() ? 'https' : 'http') . '://www.gravatar.com/avatar/' . md5(strtolower(trim($email))) . '?s=' . (int) $size . '" width="' . (int) $size . '" height="' . (int) $size . '" class="qa-avatar-image" alt=""/>';
    } else {
        return null;
    }
}

function qa_upload_file($localfilename, $sourcefilename, $maxfilesize = null, $onlyimage = false, $imagemaxwidth = null, $imagemaxheight = null)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    $result = array();
    //	Check per-user upload limits
    require_once QA_INCLUDE_DIR . 'qa-app-users.php';
    require_once QA_INCLUDE_DIR . 'qa-app-limits.php';
    switch (qa_user_permit_error(null, QA_LIMIT_UPLOADS)) {
        case 'limit':
            $result['error'] = qa_lang('main/upload_limit');
            return $result;
        case false:
            qa_limits_increment(qa_get_logged_in_userid(), QA_LIMIT_UPLOADS);
            break;
        default:
            $result['error'] = qa_lang('users/no_permission');
            return $result;
    }
    //	Check the uploaded file is not too large
    $filesize = filesize($localfilename);
    if (isset($maxfilesize)) {
        $maxfilesize = min($maxfilesize, qa_get_max_upload_size());
    } else {
        $maxfilesize = qa_get_max_upload_size();
    }
    if ($filesize <= 0 || $filesize > $maxfilesize) {
        // if file was too big for PHP, $filesize will be zero
        $result['error'] = qa_lang_sub('main/max_upload_size_x', number_format($maxfilesize / 1048576, 1) . 'MB');
        return $result;
    }
    //	Find out what type of source file was uploaded and if appropriate, check it's an image and get preliminary size measure
    $pathinfo = pathinfo($sourcefilename);
    $format = strtolower(@$pathinfo['extension']);
    $isimage = $format == 'png' || $format == 'gif' || $format == 'jpeg' || $format == 'jpg';
    // allowed image extensions
    if ($isimage) {
        $imagesize = @getimagesize($localfilename);
        if (is_array($imagesize)) {
            $result['width'] = $imagesize[0];
            $result['height'] = $imagesize[1];
            switch ($imagesize['2']) {
                // reassign format based on actual content, if we can
                case IMAGETYPE_GIF:
                    $format = 'gif';
                    break;
                case IMAGETYPE_JPEG:
                    $format = 'jpeg';
                    break;
                case IMAGETYPE_PNG:
                    $format = 'png';
                    break;
            }
        }
    }
    $result['format'] = $format;
    if ($onlyimage) {
        if (!$isimage || !is_array($imagesize)) {
            $result['error'] = qa_lang_sub('main/image_not_read', 'GIF, JPG, PNG');
            return $result;
        }
    }
    //	Read in the raw file contents
    $content = file_get_contents($localfilename);
    //	If appropriate, get more accurate image size and apply constraints to it
    require_once QA_INCLUDE_DIR . 'qa-util-image.php';
    if ($isimage && qa_has_gd_image()) {
        $image = @imagecreatefromstring($content);
        if (is_resource($image)) {
            $result['width'] = $width = imagesx($image);
            $result['height'] = $height = imagesy($image);
            if (isset($imagemaxwidth) || isset($imagemaxheight)) {
                if (qa_image_constrain($width, $height, isset($imagemaxwidth) ? $imagemaxwidth : $width, isset($imagemaxheight) ? $imagemaxheight : $height)) {
                    qa_gd_image_resize($image, $width, $height);
                    if (is_resource($image)) {
                        $content = qa_gd_image_jpeg($image);
                        $result['format'] = $format = 'jpeg';
                        $result['width'] = $width;
                        $result['height'] = $height;
                    }
                }
            }
            if (is_resource($image)) {
                // might have been lost
                imagedestroy($image);
            }
        }
    }
    //	Create the blob and return
    require_once QA_INCLUDE_DIR . 'qa-app-blobs.php';
    $userid = qa_get_logged_in_userid();
    $cookieid = isset($userid) ? qa_cookie_get() : qa_cookie_get_create();
    $result['blobid'] = qa_create_blob($content, $format, $sourcefilename, $userid, $cookieid, qa_remote_ip_address());
    if (!isset($result['blobid'])) {
        $result['error'] = qa_lang('main/general_error');
        return $result;
    }
    $result['bloburl'] = qa_get_blob_url($result['blobid'], true);
//.........这里部分代码省略.........

function qw_request_text($field)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    return isset($_REQUEST[$field]) ? preg_replace('/\\r\\n?/', "\n", trim(qa_gpc_to_string($_REQUEST[$field]))) : null;
}

function qa_report_event($event, $userid, $handle, $cookieid, $params = array())
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    global $qa_event_reports_suspended;
    if ($qa_event_reports_suspended > 0) {
        return;
    }
    $eventmodules = qa_load_modules_with('event', 'process_event');
    foreach ($eventmodules as $eventmodule) {
        $eventmodule->process_event($event, $userid, $handle, $cookieid, $params);
    }
}

function qa_wall_posts_add_rules($usermessages, $start, $userid)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    $deleteable = $start == 0 && isset($userid);
    // can delete all of the most recent messages...
    foreach ($usermessages as $key => $message) {
        if ($message['touserid'] != $userid && $message['fromuserid'] != $userid) {
            $deleteable = false;
        }
        // ... until we come across one that doesn't involve me
        $usermessages[$key]['deleteable'] = $deleteable;
    }
    return $usermessages;
}

/**
 * Return the full name (with prefix) of database table $rawname, usually if it used after a ^ symbol.
 */
function qa_db_add_table_prefix($rawname)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    $prefix = QA_MYSQL_TABLE_PREFIX;
    if (defined('QA_MYSQL_USERS_PREFIX')) {
        switch (strtolower($rawname)) {
            case 'users':
            case 'userlogins':
            case 'userprofile':
            case 'userfields':
            case 'messages':
            case 'cookies':
            case 'blobs':
            case 'cache':
            case 'userlogins_ibfk_1':
                // also special cases for constraint names
            // also special cases for constraint names
            case 'userprofile_ibfk_1':
                $prefix = QA_MYSQL_USERS_PREFIX;
                break;
        }
    }
    return $prefix . $rawname;
}