function get_cached_image($url)
{
$file_cache_r = fetch_url_file_cache_r($url, 'ITEM', INCLUDE_EXPIRED);
if ($file_cache_r != FALSE) {
//$imagefile = file_cache_get_cache_file_thumbnail($file_cache_r);
$imagefile = file_cache_get_cache_file($file_cache_r);
if ($imagefile != FALSE) {
return $imagefile;
}
}
//else
return NULL;
}
function &fetchURI($URI, $http_cache = TRUE)
{
@set_time_limit(600);
$URI = trim($URI);
$this->__debug('fetchURI', "URI: {$URI}");
$this->_file_cache_r = NULL;
$overwrite_cache_entry = FALSE;
if ($http_cache !== FALSE && $this->_file_cache_enabled) {
// see if we can find the cache file.
$this->_file_cache_r = fetch_url_file_cache_r($URI, 'HTTP');
if ($this->_file_cache_r !== FALSE) {
$file_location = file_cache_get_cache_file($this->_file_cache_r);
if ($file_location !== FALSE) {
$this->_file_cache_r['content'] = file_get_contents($file_location);
if (strlen($this->_file_cache_r['content']) == 0) {
$this->__debug('fetchURI', 'URL cache invalid');
$overwrite_cache_entry = TRUE;
unset($this->_file_cache_r);
}
} else {
unset($this->_file_cache_r);
}
}
}
if (is_not_empty_array($this->_file_cache_r)) {
$this->__debug('fetchURI', 'URL cached');
return $this->_file_cache_r['content'];
} else {
$this->__debug('fetchURI', 'URL NOT cached');
if ($this->fetch($URI) && $this->status >= 200 && $this->status < 300) {
opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($URI));
$this->_file_cache_r['url'] = $URI;
$this->_file_cache_r['content'] = $this->results;
$this->results = NULL;
if (strlen($this->_file_cache_r['content']) > 0) {
$this->__debug('fetchURI', 'URL fetched (Size=' . strlen($this->_file_cache_r['content']) . ')');
// assume a default.
$this->_file_cache_r['content_type'] = 'text/html';
if (is_array($this->headers) && count($this->headers) > 0) {
for ($i = 0; $i < count($this->headers); $i++) {
if (preg_match("/^([^:]*):([^\$]*)\$/i", $this->headers[$i], $matches)) {
if (strcasecmp(trim($matches[1]), 'content-type') === 0) {
$this->_file_cache_r['content_type'] = trim($matches[2]);
break;
}
}
}
}
$this->_file_cache_r['location'] = $this->lastredirectaddr;
if ($http_cache !== FALSE && $this->_file_cache_enabled) {
if (file_cache_insert_file($this->_file_cache_r['url'], $this->_file_cache_r['location'], $this->_file_cache_r['content_type'], $this->_file_cache_r['content'], 'HTTP', $overwrite_cache_entry) !== FALSE) {
$this->__debug('fetchURI', "Added {$URI} to file cache");
} else {
$this->__debug('fetchURI', "Failed to add {$URI} to file cache");
}
}
//if($http_cache!==FALSE && $this->_file_cache_enabled)
}
//if(strlen($_file_cache_r['content'])>0)
return $this->_file_cache_r['content'];
} else {
$this->__debug('fetchURI', "Failed to fetch {$URI}", ifempty($this->error, 'Status ' . $this->status));
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, ifempty($this->error, 'Status ' . $this->status), array($URI));
return FALSE;
}
}
}
function file_cache_insert_file($url, $location, $content_type, $content, $cache_type = 'HTTP', $overwrite = FALSE)
{
$cache_config_r = file_cache_get_config($cache_type);
if (is_array($cache_config_r) && $cache_config_r['enable'] !== FALSE) {
$directory = $cache_config_r['directory'];
if ($directory === FALSE) {
return FALSE;
}
// we need to know whether we are overwriting existing URL or not
$file_cache_r = fetch_url_file_cache_r($url, $cache_type, INCLUDE_EXPIRED);
if (is_array($file_cache_r)) {
if (!file_cache_get_cache_file($file_cache_r)) {
opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, 'Cache file record exists, but there is no cache file - will recreate', $file_cache_r);
$file_cache_r['cache_file'] = NULL;
// delete thumbnail if it exists
if (!($thumbnail_file = file_cache_get_cache_file_thumbnail($file_cache_r))) {
delete_file($thumbnail_file);
}
$file_cache_r['cache_file_thumb'] = NULL;
} else {
if (!$overwrite) {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, 'File cache record exists and cannot be overwritten', $file_cache_r);
return FALSE;
}
}
} else {
$file_cache_r['cache_type'] = $cache_type;
}
if ($content == NULL && is_url_absolute($url)) {
$httpClient = new OpenDbSnoopy();
$content = $httpClient->fetchURI($url, FALSE);
if ($content !== FALSE) {
$location = $httpClient->getLocation();
$content_type = $httpClient->getContentType();
unset($httpClient);
} else {
unset($httpClient);
// http client logs error
return FALSE;
}
}
$file_cache_r['url'] = ifempty($url, $file_cache_r['url']);
$file_cache_r['location'] = ifempty($location, $file_cache_r['location']);
$file_cache_r['content_type'] = validate_content_type(ifempty($content_type, $file_cache_r['content_type']));
$thumbnail_support = FALSE;
if (strlen($file_cache_r['content_type']) > 0) {
$file_type_r = fetch_file_type_r($file_cache_r['content_type']);
$file_cache_r['extension'] = $file_type_r['extension'];
$thumbnail_support = $file_type_r['thumbnail_support_ind'] == 'Y';
} else {
$extension = get_file_ext($file_cache_r['url']);
if (strlen($extension) > 0 && ($ext_content_type = fetch_file_type_for_extension($extension)) !== FALSE) {
$content_type = $ext_content_type;
} else {
$content_type = validate_content_type($content_type);
}
$file_type_r = fetch_file_type_r($content_type);
if (!is_array($file_type_r)) {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, 'Content type not supported', array($url, $location, $content_type, $cache_type, $overwrite));
return FALSE;
}
$file_cache_r['content_type'] = $content_type;
$file_cache_r['extension'] = $file_type_r['extension'];
$thumbnail_support = $file_type_r['thumbnail_support_ind'] == 'Y';
}
$file_cache_r['content_length'] = 0;
if (($uploadFile = get_item_input_file_upload_url($url)) !== FALSE) {
$file_cache_r['content_length'] = @filesize($uploadFile);
$file_cache_r['cache_file'] = basename($uploadFile);
$file_cache_r['upload_file_ind'] = 'Y';
} else {
if (strlen($content) > 0) {
$file_cache_r['content_length'] = strlen($content);
$file_cache_r['upload_file_ind'] = 'N';
}
}
if ($file_cache_r['content_length'] > 0) {
if (!is_numeric($file_cache_r['sequence_number'])) {
$file_cache_r['sequence_number'] = insert_file_cache($cache_type, $file_cache_r['upload_file_ind'], $file_cache_r['url'], $file_cache_r['location'], $file_cache_r['content_type']);
if ($file_cache_r['sequence_number'] === FALSE) {
return FALSE;
}
}
if ($file_cache_r['cache_file'] == NULL) {
$file_cache_r['cache_file'] = filecache_generate_cache_filename($file_cache_r);
}
if ($content != NULL) {
$directory = file_cache_get_cache_type_directory($file_cache_r['cache_type']);
$cacheFile = $directory . '/' . $file_cache_r['cache_file'];
if (!file_put_contents($cacheFile, $content) !== FALSE) {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, 'Cache file not written', array($cacheFile));
return FALSE;
}
}
if ($thumbnail_support) {
if (strlen($file_cache_r['cache_file_thumb']) == 0) {
$file_cache_r['cache_file_thumb'] = filecache_generate_cache_filename($file_cache_r, TRUE);
}
}
if ($file_cache_r['upload_file_ind'] != 'Y') {
$expire_date = is_numeric($cache_config_r['lifetime']) ? "NOW()+ INTERVAL " . $cache_config_r['lifetime'] . " SECOND" : NULL;
} else {
$expire_date = NULL;
}
// do not expire uploaded file records.
if (!update_file_cache($file_cache_r['sequence_number'], $file_cache_r['content_length'], $expire_date, $file_cache_r['cache_file'], $file_cache_r['cache_file_thumb'])) {
return FALSE;
}
if ($thumbnail_support) {
file_cache_save_thumbnail_file($file_cache_r, $errors);
}
return TRUE;
} else {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, 'File content length is zero', array($url, $location, $content_type, $cache_type, $overwrite));
return FALSE;
}
} else {
if (!is_array($cache_config_r)) {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, 'No file cache configuration', array($url, $location, $content_type, $cache_type, $overwrite));
return FALSE;
} else {
// file cache is disabled
return TRUE;
}
}
}
