php-curl封装[避免下传文件二义性Bug]

程序员文章站 2022-06-17 17:28:56
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php-curl封装[避免上传文件二义性Bug]
由于php的curl在curl_setopt($curl, CURLOPT_POSTFIELDS, xxx)时, 当xxx为数组时, 如果值的第一个字符是@, 则认为是文件上传, 当同时需要上传文件, [email protected], 存在冲突. 因此, 在api_common.php中的post数据的设置进行了封装
 TRUE, 	REQUEST_BEHAVIOR_MAX_REDIRECT				=> 5, 	REQUEST_BEHAVIOR_USER_AGENT					=> 'curl-lib', 	REQUEST_BEHAVIOR_AUTOREFERER				=> TRUE, 	REQUEST_BEHAVIOR_UPLOAD						=> FALSE, 	REQUEST_BEHAVIOR_CONNECTTIMEOUT				=> 3, 	REQUEST_BEHAVIOR_DNS_CACHE_TIMEOUT			=> 3600, 	REQUEST_BEHAVIOR_TIMEOUT					=> 3, 	REQUEST_BEHAVIOR_ENCODING					=> 'gzip', 	REQUEST_BEHAVIOR_ERROR_HANDLER				=> '__default_curl_error_handler', );define('MULTIPART_FORM_DATA_HEAD_FMT',				'Content-Type: multipart/form-data; boundary=----------------------------%s');define('MULTIPART_FORM_DATA_BODY_STRING',			"------------------------------%s\r\nContent-Disposition: form-data; name=\"%s\"\r\n\r\n%s\r\n");define('MULTIPART_FORM_DATA_BODY_FILE',				"------------------------------%s\r\nContent-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\nContent-Type: application/octet-stream\r\n\r\n%s\r\n");define('MULTIPART_FORM_DATA_BODY_END',				"------------------------------%s--\r\n\r\n");#响应键值define('RESP_CODE',									'resp_code');define('RESP_BODY',									'resp_body');define('RESP_HEADER',								'resp_header');#HTTP 1xx状态验证define('HTTP_1XX_RESP',								'/^HTTP\/1.[01] 1\d{2} \w+/');#默认错误处理的错误消息define('E_CURL_ERROR_FMT',								'curl "%s" error[%d]: %s');#默认的curl错误处理function __default_curl_error_handler($curl, $url, $errno, $errstr) {	trigger_error(sprintf(E_CURL_ERROR_FMT, $url, $errno, $errstr), E_USER_ERROR);}#切换CURL请求方法function __method_switch($curl, $method) {	switch ( $method) {		case REQUEST_METHOD_POST:			__curl_setopt($curl, CURLOPT_POST, TRUE);			break;		case REQUEST_METHOD_HEAD:			__curl_setopt($curl, CURLOPT_NOBODY, TRUE);			break;		case REQUEST_METHOD_GET:			__curl_setopt($curl, CURLOPT_HTTPGET, TRUE);			break;		default:			break;	}}#设置默认头信息function __default_header_set($curl) {	__curl_setopt($curl, CURLOPT_RETURNTRANSFER,			TRUE);	__curl_setopt($curl, CURLOPT_HEADER,					TRUE);	__curl_setopt($curl, CURLOPT_FOLLOWLOCATION,			(bool)curl_behavior(REQUEST_BEHAVIOR_ALLOW_REDIRECT));	__curl_setopt($curl, CURLOPT_MAXREDIRS,					(int)curl_behavior(REQUEST_BEHAVIOR_MAX_REDIRECT));	__curl_setopt($curl, CURLOPT_USERAGENT,					(string)curl_behavior(REQUEST_BEHAVIOR_USER_AGENT));	__curl_setopt($curl, CURLOPT_AUTOREFERER,				(bool)curl_behavior(REQUEST_BEHAVIOR_AUTOREFERER));	__curl_setopt($curl, CURLOPT_UPLOAD,					(bool)curl_behavior(REQUEST_BEHAVIOR_UPLOAD));	__curl_setopt($curl, CURLOPT_CONNECTTIMEOUT,			(int)curl_behavior(REQUEST_BEHAVIOR_CONNECTTIMEOUT));	__curl_setopt($curl, CURLOPT_DNS_CACHE_TIMEOUT,			(int)curl_behavior(REQUEST_BEHAVIOR_DNS_CACHE_TIMEOUT));	__curl_setopt($curl, CURLOPT_TIMEOUT,					(int)curl_behavior(REQUEST_BEHAVIOR_TIMEOUT));	__curl_setopt($curl, CURLOPT_ENCODING,					(string)curl_behavior(REQUEST_BEHAVIOR_ENCODING));}#设置用户自定义头信息function __custom_header_set($curl, $headers = NULL) {	if ( empty($headers) ) return ;	if ( is_string($headers) ) 		$headers	= explode("\r\n", $headers);	#类型修复	foreach ( $headers as &$header ) 		if ( is_array($header) ) 			$header	= sprintf('%s: %s', $header[0], $header[1]);	__curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);}#设置请求bodyfunction __datas_set($curl, $datas = NULL) {	if ( empty($datas) ) return ;	if ( is_array($datas) ) {		$custom_body		= FALSE;		$uniqid				= uniqid();		$custom_body_str	= '';		foreach ( $datas as $name => $data ) {			if ( is_array($data) && array_key_exists(API_CURL_UPLOAD_FILE, $data) ) {				$file	= $data[API_CURL_UPLOAD_FILE];				if ( file_exists($file) ) {					$custom_body		= TRUE;					$custom_body_str	.= sprintf(MULTIPART_FORM_DATA_BODY_FILE, 										$uniqid, $name, 										$file, file_get_contents($file));				}			} else {				$custom_body_str		.= sprintf(MULTIPART_FORM_DATA_BODY_STRING, 										$uniqid, $name, $data);			}		}		if ( $custom_body ) {			curl_setopt($curl, CURLOPT_HTTPHEADER, array(sprintf(MULTIPART_FORM_DATA_HEAD_FMT, $uniqid)));			$datas				= $custom_body_str . sprintf(MULTIPART_FORM_DATA_BODY_END, $uniqid);		}	}	__curl_setopt($curl, CURLOPT_POSTFIELDS, $datas);}#对curl_setopt的封装function __curl_setopt($curl, $optname, $optval) {	curl_setopt($curl, $optname, $optval);	__curl_error($curl);}#curl错误检查处理function __curl_error($curl) {	if ( curl_errno($curl) ) {		$url	= curl_getinfo($curl, CURLINFO_EFFECTIVE_URL);		$errno	= curl_errno($curl);		$errstr	= curl_error($curl);		$errh	= curl_behavior(REQUEST_BEHAVIOR_ERROR_HANDLER);		if ( function_exists($errh) )			$errh($curl, $url, $errno, $errstr);	}}#api默认行为切换function curl_behavior($names, $values = NULL) {	if ( !is_string($names) && !is_array($names) ) return ;	if ( !is_null($values) ) {		if ( is_string($names) ) 			$GLOBALS[REQUEST_BEHAVIORS][$names]	= $values;		else if ( is_array($names) && !is_array($values) )			foreach ( $names as $name )				$GLOBALS[REQUEST_BEHAVIORS][$name]	= $values;		else if ( is_array($names) && is_array($values) )			foreach ( $names as $k => $name ) 				$GLOBALS[REQUEST_BEHAVIORS][$name]	= $values[$k];	}	if ( is_string($names) ) {		$return	= $GLOBALS[REQUEST_BEHAVIORS][$names];	} else if ( is_array($names) ) {		$return	= array();		foreach ( $names as $name ) 			$return[$name]	= array_key_exists($name, $GLOBALS[REQUEST_BEHAVIORS]) 							? $GLOBALS[REQUEST_BEHAVIORS][$name]							: NULL;	}	return $return;}#请求入口function curl_request($url, $method, $datas = NULL, $headers = NULL) {	$curl	= curl_init($url);	__method_switch($curl, $method);	__default_header_set($curl);	__custom_header_set($curl, $headers);	__datas_set($curl, $datas);	$response	= curl_exec($curl);	__curl_error($curl);	$status_code	= curl_getinfo($curl, CURLINFO_HTTP_CODE);	$components		= explode("\r\n\r\n", $response);	$i				= -1;	while ( ++ $i  $status_code, 		RESP_HEADER	=> $headers, 		RESP_BODY	=> $body, 	);}#GET请求function curl_get($url, $headers = NULL) {	return curl_request($url, REQUEST_METHOD_GET, NULL, $headers);}#POST请求function curl_post($url, $datas = NULL, $headers = NULL) {	return curl_request($url, REQUEST_METHOD_POST, $datas, $headers);}#HEAD请求function curl_head($url, $headers = NULL) {	return curl_request($url, REQUEST_METHOD_HEAD, NULL, $headers);}#构造上传文件字段function curl_post_file($file) {	return array(		API_CURL_UPLOAD_FILE	=> $file, 	);}#读取响应码function curl_resp_code($resp) {	return $resp[RESP_CODE];}#读取响应头function curl_resp_header($resp) {	return $resp[RESP_HEADER];}#读取响应体function curl_resp_body($resp) {	return $resp[RESP_BODY];}
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