c1dd2b6009
git-svn-id: file:///home/shish/svn/shimmie2/trunk@270 7f39781d-f577-437e-ae19-be835c7a54ca
400 lines
9.9 KiB
PHP
400 lines
9.9 KiB
PHP
<?php
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* Input / Output Sanitising *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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function html_escape($input) {
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return htmlentities($input, ENT_QUOTES, "UTF-8");
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}
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function int_escape($input) {
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return (int)$input;
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}
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function url_escape($input) {
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$input = rawurlencode($input);
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return $input;
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}
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function sql_escape($input) {
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global $database;
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return $database->db->Quote($input);
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}
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function parse_shorthand_int($limit) {
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if(is_numeric($limit)) {
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return (int)$limit;
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}
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if(preg_match('/^([\d\.]+)([gmk])?b?$/i', "$limit", $m)) {
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$value = $m[1];
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if (isset($m[2])) {
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switch(strtolower($m[2])) {
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case 'g': $value *= 1024; # fallthrough
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case 'm': $value *= 1024; # fallthrough
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case 'k': $value *= 1024; break;
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default: $value = -1;
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}
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}
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return (int)$value;
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} else {
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return -1;
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}
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}
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function to_shorthand_int($int) {
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if($int >= pow(1024, 3)) {
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return sprintf("%.1fGB", $int / pow(1024, 3));
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}
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else if($int >= pow(1024, 2)) {
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return sprintf("%.1fMB", $int / pow(1024, 2));
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}
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else if($int >= 1024) {
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return sprintf("%.1fKB", $int / 1024);
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}
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else {
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return "$int";
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}
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}
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function tag_explode($tags) {
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if(is_string($tags)) {
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$tags = explode(' ', $tags);
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}
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else if(is_array($tags)) {
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// do nothing
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}
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else {
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die("tag_explode only takes strings or arrays");
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}
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$tags = array_map("trim", $tags);
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$tag_array = array();
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foreach($tags as $tag) {
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if(is_string($tag) && strlen($tag) > 0) {
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$tag_array[] = $tag;
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}
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}
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if(count($tag_array) == 0) {
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$tag_array = array("tagme");
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}
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return $tag_array;
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}
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* HTML Generation *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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function make_link($page, $query=null) {
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global $config;
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$base = $config->get_string('base_href');
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if(is_null($query)) {
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return "$base/$page";
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}
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else {
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if(strpos($base, "?")) {
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return "$base/$page&$query";
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}
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else {
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return "$base/$page?$query";
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}
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}
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}
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function build_thumb_html($image, $query=null) {
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global $config;
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$h_view_link = make_link("post/view/{$image->id}", $query);
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$h_tip = html_escape($image->get_tooltip());
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$h_thumb_link = $image->get_thumb_link();
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$tsize = get_thumbnail_size($image->width, $image->height);
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return "<a href='$h_view_link'><img title='$h_tip' alt='$h_tip'
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width='{$tsize[0]}' height='{$tsize[1]}' src='$h_thumb_link' /></a>\n";
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}
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* Misc *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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function get_thumbnail_size($orig_width, $orig_height) {
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global $config;
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if($orig_width == 0) $orig_width = 192;
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if($orig_height == 0) $orig_height = 192;
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$max_width = $config->get_int('thumb_width');
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$max_height = $config->get_int('thumb_height');
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$xscale = ($max_height / $orig_height);
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$yscale = ($max_width / $orig_width);
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$scale = ($xscale < $yscale) ? $xscale : $yscale;
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if($scale > 1 && $config->get_bool('thumb_upscale')) {
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return array($orig_width, $orig_height);
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}
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else {
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return array($orig_width*$scale, $orig_height*$scale);
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}
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}
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# $db is the connection object
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function _count_execs($db, $sql, $inputarray) {
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global $_execs;
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if(DEBUG) {
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$fp = fopen("sql.log", "a");
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fwrite($fp, preg_replace('/\s+/msi', ' ', $sql)."\n");
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fclose($fp);
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}
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if (!is_array($inputarray)) $_execs++;
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# handle 2-dimensional input arrays
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else if (is_array(reset($inputarray))) $_execs += sizeof($inputarray);
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else $_execs++;
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# in PHP4.4 and PHP5, we need to return a value by reference
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$null = null; return $null;
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}
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function get_theme_object($file, $class) {
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global $config;
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$theme = $config->get_string("theme", "default");
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if(file_exists("themes/$theme/$file.theme.php")) {
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require_once "themes/$theme/$file.theme.php";
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return new $class();
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}
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else {
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require_once "ext/$file/theme.php";
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return new $class();
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}
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}
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function blockcmp($a, $b) {
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if($a->position == $b->position) {
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return 0;
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}
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else {
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return ($a->position > $b->position);
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}
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}
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function get_memory_limit() {
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global $config;
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// thumbnail generation requires lots of memory
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$default_limit = 8*1024*1024;
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$shimmie_limit = parse_shorthand_int($config->get_int("thumb_mem_limit"));
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if($shimmie_limit < 3*1024*1024) {
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// we aren't going to fit, override
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$shimmie_limit = $default_limit;
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}
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ini_set("memory_limit", $shimmie_limit);
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$memory = parse_shorthand_int(ini_get("memory_limit"));
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// changing of memory limit is disabled / failed
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if($memory == -1) {
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$memory = $default_limit;
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}
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assert($memory > 0);
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return $memory;
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}
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* Debugging functions *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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function get_debug_info() {
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global $config;
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if($config->get_bool('debug_enabled')) {
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if(function_exists('memory_get_usage')) {
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$i_mem = sprintf("%5.2f", ((memory_get_usage()+512)/1024)/1024);
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}
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else {
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$i_mem = "???";
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}
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if(function_exists('getrusage')) {
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$ru = getrusage();
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$i_utime = sprintf("%5.2f", ($ru["ru_utime.tv_sec"]*1e6+$ru["ru_utime.tv_usec"])/1000000);
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$i_stime = sprintf("%5.2f", ($ru["ru_stime.tv_sec"]*1e6+$ru["ru_stime.tv_usec"])/1000000);
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}
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else {
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$i_utime = "???";
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$i_stime = "???";
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}
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$i_files = count(get_included_files());
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global $_execs;
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$debug = "<br>Took $i_utime + $i_stime seconds and {$i_mem}MB of RAM";
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$debug .= "; Used $i_files files and $_execs queries";
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}
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else {
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$debug = "";
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}
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return $debug;
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}
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function print_obj($array,$title="Object Information") {
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global $user, $page;
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if(DEBUG && isset($_GET['debug']) && $user->is_admin()) {
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// big test:
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// $debug_active to be able to kill the function from the file system.
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// Look for ?debug (GET type data) to prevent the debug from appearing to regular browsing.
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// Finally an admin check, because variables may contain sensitive data.
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// once all that is cleared, make a block:
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$page->add_block(
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new Block(
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$title,
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str_replace(" ",
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"<span style='opacity:0; -moz-opacity:0; alpha:0;'>__</span>",
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str_replace("\n","<br/>",html_escape(print_r($array,true)))),
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"main",1000
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)
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);
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}
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// print_r is called with the return option (not echo-style) to get a string
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// output to work with.
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// Then two str_replaces turn newlines into <br/> tags and indent spaces into
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// rendered underscores (which are then hidden.)
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// Finally the entire thing is packaged into a block and mailed to the main
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// section at the bottom of the pile.
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}
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// preset tests.
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// Prints the contents of $event->args, even though they are clearly visible in
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// the URL bar.
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function print_url_args() {
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global $event;
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print_obj($event->args,"URL Arguments");
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}
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// Prints all the POST data.
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function print_POST() {
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print_obj($_POST,"\$_POST");
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}
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// Prints GET, though this is also visible in the url ( url?var&var&var)
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function print_GET() {
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print_obj($_GET,"\$_GET");
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}
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* Things which should be in the core API *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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function array_remove($array, $to_remove) {
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$array = array_unique($array);
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$a2 = array();
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foreach($array as $existing) {
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if($existing != $to_remove) {
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$a2[] = $existing;
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}
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}
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return $a2;
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}
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function array_add($array, $element) {
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$array[] = $element;
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$array = array_unique($array);
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return $array;
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}
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* Event API *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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$_event_listeners = array();
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function add_event_listener($extension, $pos=50) {
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global $_event_listeners;
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while(isset($_event_listeners[$pos])) {
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$pos++;
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}
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$_event_listeners[$pos] = $extension;
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}
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function send_event($event) {
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global $_event_listeners;
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$my_event_listeners = $_event_listeners; // http://bugs.php.net/bug.php?id=35106
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ksort($my_event_listeners);
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foreach($my_event_listeners as $listener) {
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$listener->receive_event($event);
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if($event->vetoed) break;
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}
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}
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
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* Request initialisation stuff *
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\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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function _get_query_parts() {
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if(isset($_GET["q"])) {
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$path = $_GET["q"];
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}
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else if(isset($_SERVER["PATH_INFO"])) {
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$path = $_SERVER["PATH_INFO"];
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}
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else {
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$path = "";
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}
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while(strlen($path) > 0 && $path[0] == '/') {
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$path = substr($path, 1);
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}
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return split('/', $path);
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}
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function _get_page_request($page_object) {
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global $config;
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$args = _get_query_parts();
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if(count($args) == 0 || strlen($args[0]) == 0) {
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$page = $config->get_string('front_page', 'index');
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$args = array();
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}
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else if(count($args) == 1) {
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$page = $args[0];
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$args = array();
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}
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else {
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$page = $args[0];
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$args = array_slice($args, 1);
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}
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return new PageRequestEvent($page, $args, $page_object);
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}
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function _get_user() {
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global $database;
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global $config;
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$user = null;
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if(isset($_COOKIE["shm_user"]) && isset($_COOKIE["shm_session"])) {
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$tmp_user = $database->get_user_session($_COOKIE["shm_user"], $_COOKIE["shm_session"]);
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if(!is_null($tmp_user) && $tmp_user->is_enabled()) {
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$user = $tmp_user;
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}
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}
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if(is_null($user)) {
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$user = $database->get_user_by_id($config->get_int("anon_id", 0));
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}
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assert(!is_null($user));
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return $user;
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}
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?>
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