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think-library/vendor/obs/esdk-obs-php/Obs/Internal/Signature/AbstractSignature.php

471 lines
15 KiB

<?php
/**
* Copyright 2019 Huawei Technologies Co.,Ltd.
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
*/
namespace Obs\Internal\Signature;
use Obs\Log\ObsLog;
use Obs\Internal\Resource\Constants;
use Obs\ObsException;
use Obs\Internal\Common\SchemaFormatter;
use GuzzleHttp\Psr7\Stream;
use Obs\Internal\Common\Model;
use Psr\Http\Message\StreamInterface;
use Obs\Internal\Common\ObsTransform;
use Obs\Internal\Common\V2Transform;
abstract class AbstractSignature implements SignatureInterface
{
protected $ak;
protected $sk;
protected $pathStyle;
protected $endpoint;
protected $methodName;
protected $securityToken;
protected $signature;
protected $isCname;
public static function urlencodeWithSafe($val, $safe='/'){
if(($len = strlen($val)) === 0){
return '';
}
$buffer = [];
for ($index=0;$index<$len;$index++){
$str = $val[$index];
$buffer[] = !($pos = strpos($safe, $str)) && $pos !== 0 ? rawurlencode($str) : $str;
}
return implode('', $buffer);
}
protected function __construct($ak, $sk, $pathStyle, $endpoint, $methodName, $signature, $securityToken=false, $isCname=false)
{
$this -> ak = $ak;
$this -> sk = $sk;
$this -> pathStyle = $pathStyle;
$this -> endpoint = $endpoint;
$this -> methodName = $methodName;
$this -> signature = $signature;
$this -> securityToken = $securityToken;
$this -> isCname = $isCname;
}
protected function transXmlByType($key, &$value, &$subParams, $transHolder)
{
$xml = [];
$treatAsString = false;
if(isset($value['type'])){
$type = $value['type'];
if($type === 'array'){
$name = isset($value['sentAs']) ? $value['sentAs'] : $key;
$subXml = [];
foreach($subParams as $item){
$temp = $this->transXmlByType($key, $value['items'], $item, $transHolder);
if($temp !== ''){
$subXml[] = $temp;
}
}
if(!empty($subXml)){
if(!isset($value['data']['xmlFlattened'])){
$xml[] = '<' . $name . '>';
$xml[] = implode('', $subXml);
$xml[] = '</' . $name . '>';
}else{
$xml[] = implode('', $subXml);
}
}
}else if($type === 'object'){
$name = isset($value['sentAs']) ? $value['sentAs'] : (isset($value['name']) ? $value['name'] : $key);
$properties = $value['properties'];
$subXml = [];
$attr = [];
foreach ($properties as $pkey => $pvalue){
if(isset($pvalue['required']) && $pvalue['required'] && !isset($subParams[$pkey])){
$obsException= new ObsException('param:' .$pkey. ' is required');
$obsException-> setExceptionType('client');
throw $obsException;
}
if(isset($subParams[$pkey])){
if(isset($pvalue['data']) && isset($pvalue['data']['xmlAttribute']) && $pvalue['data']['xmlAttribute']){
$attrValue = $this->xml_tansfer(trim(strval($subParams[$pkey])));
$attr[$pvalue['sentAs']] = '"' . $attrValue . '"';
if(isset($pvalue['data']['xmlNamespace'])){
$ns = substr($pvalue['sentAs'], 0, strpos($pvalue['sentAs'], ':'));
$attr['xmlns:' . $ns] = '"' . $pvalue['data']['xmlNamespace'] . '"';
}
}else{
$subXml[] = $this -> transXmlByType($pkey, $pvalue, $subParams[$pkey], $transHolder);
}
}
}
$val = implode('', $subXml);
if($val !== ''){
$_name = $name;
if(!empty($attr)){
foreach ($attr as $akey => $avalue){
$_name .= ' ' . $akey . '=' . $avalue;
}
}
if(!isset($value['data']['xmlFlattened'])){
$xml[] = '<' . $_name . '>';
$xml[] = $val;
$xml[] = '</' . $name . '>';
} else {
$xml[] = $val;
}
}
}else{
$treatAsString = true;
}
}else{
$treatAsString = true;
$type = null;
}
if($treatAsString){
if($type === 'boolean'){
if(!is_bool($subParams) && strval($subParams) !== 'false' && strval($subParams) !== 'true'){
$obsException= new ObsException('param:' .$key. ' is not a boolean value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}else if($type === 'numeric'){
if(!is_numeric($subParams)){
$obsException= new ObsException('param:' .$key. ' is not a numeric value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}else if($type === 'float'){
if(!is_float($subParams)){
$obsException= new ObsException('param:' .$key. ' is not a float value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}else if($type === 'int' || $type === 'integer'){
if(!is_int($subParams)){
$obsException= new ObsException('param:' .$key. ' is not a int value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}
$name = isset($value['sentAs']) ? $value['sentAs'] : $key;
if(is_bool($subParams)){
$val = $subParams ? 'true' : 'false';
}else{
$val = strval($subParams);
}
if(isset($value['format'])){
$val = SchemaFormatter::format($value['format'], $val);
}
if (isset($value['transform'])) {
$val = $transHolder->transform($value['transform'], $val);
}
if(isset($val) && $val !== ''){
$val = $this->xml_tansfer($val);
if(!isset($value['data']['xmlFlattened'])){
$xml[] = '<' . $name . '>';
$xml[] = $val;
$xml[] = '</' . $name . '>';
} else {
$xml[] = $val;
}
}else if(isset($value['canEmpty']) && $value['canEmpty']){
$xml[] = '<' . $name . '>';
$xml[] = $val;
$xml[] = '</' . $name . '>';
}
}
$ret = implode('', $xml);
if(isset($value['wrapper'])){
$ret = '<'. $value['wrapper'] . '>' . $ret . '</'. $value['wrapper'] . '>';
}
return $ret;
}
private function xml_tansfer($tag) {
$search = array('&', '<', '>', '\'', '"');
$repalce = array('&amp;', '&lt;', '&gt;', '&apos;', '&quot;');
$transferXml = str_replace($search, $repalce, $tag);
return $transferXml;
}
protected function prepareAuth(array &$requestConfig, array &$params, Model $model)
{
$transHolder = strcasecmp($this-> signature, 'obs') === 0 ? ObsTransform::getInstance() : V2Transform::getInstance();
$method = $requestConfig['httpMethod'];
$requestUrl = $this->endpoint;
$headers = [];
$pathArgs = [];
$dnsParam = null;
$uriParam = null;
$body = [];
$xml = [];
if(isset($requestConfig['specialParam'])){
$pathArgs[$requestConfig['specialParam']] = '';
}
$result = ['body' => null];
$url = parse_url($requestUrl);
$host = $url['host'];
$fileFlag = false;
if(isset($requestConfig['requestParameters'])){
$paramsMetadata = $requestConfig['requestParameters'];
foreach ($paramsMetadata as $key => $value){
if(isset($value['required']) && $value['required'] && !isset($params[$key])){
$obsException= new ObsException('param:' .$key. ' is required');
$obsException-> setExceptionType('client');
throw $obsException;
}
if(isset($params[$key]) && isset($value['location'])){
$location = $value['location'];
$val = $params[$key];
$type = 'string';
if($val !== '' && isset($value['type'])){
$type = $value['type'];
if($type === 'boolean'){
if(!is_bool($val) && strval($val) !== 'false' && strval($val) !== 'true'){
$obsException= new ObsException('param:' .$key. ' is not a boolean value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}else if($type === 'numeric'){
if(!is_numeric($val)){
$obsException= new ObsException('param:' .$key. ' is not a numeric value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}else if($type === 'float'){
if(!is_float($val)){
$obsException= new ObsException('param:' .$key. ' is not a float value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}else if($type === 'int' || $type === 'integer'){
if(!is_int($val)){
$obsException= new ObsException('param:' .$key. ' is not a int value');
$obsException-> setExceptionType('client');
throw $obsException;
}
}
}
if($location === 'header'){
if($type === 'object'){
if(is_array($val)){
$sentAs = strtolower($value['sentAs']);
foreach ($val as $k => $v){
$k = self::urlencodeWithSafe(strtolower($k), ' ;/?:@&=+$,');
$name = strpos($k, $sentAs) === 0 ? $k : $sentAs . $k;
$headers[$name] = self::urlencodeWithSafe($v, ' ;/?:@&=+$,\'*');
}
}
}else if($type === 'array'){
if(is_array($val)){
$name = isset($value['sentAs']) ? $value['sentAs'] : (isset($value['items']['sentAs']) ? $value['items']['sentAs'] : $key);
$temp = [];
foreach ($val as $v){
if(($v = strval($v)) !== ''){
$temp[] = self::urlencodeWithSafe($val, ' ;/?:@&=+$,\'*');
}
}
$headers[$name] = $temp;
}
}else if($type === 'password'){
if(($val = strval($val)) !== ''){
$name = isset($value['sentAs']) ? $value['sentAs'] : $key;
$pwdName = isset($value['pwdSentAs']) ? $value['pwdSentAs'] : $name . '-MD5';
$val1 = base64_encode($val);
$val2 = base64_encode(md5($val, true));
$headers[$name] = $val1;
$headers[$pwdName] = $val2;
}
}else{
if (isset($value['transform'])) {
$val = $transHolder->transform($value['transform'], strval($val));
}
if(isset($val)){
if(is_bool($val)){
$val = $val ? 'true' : 'false';
}else{
$val = strval($val);
}
if($val !== ''){
$name = isset($value['sentAs']) ? $value['sentAs'] : $key;
if(isset($value['format'])){
$val = SchemaFormatter::format($value['format'], $val);
}
$headers[$name] = self::urlencodeWithSafe($val, ' ;/?:@&=+$,\'*');
}
}
}
}else if($location === 'uri' && $uriParam === null){
$uriParam = self::urlencodeWithSafe($val);
}else if($location === 'dns' && $dnsParam === null){
$dnsParam = $val;
}else if($location === 'query'){
$name = isset($value['sentAs']) ? $value['sentAs'] : $key;
if(strval($val) !== ''){
if (strcasecmp ( $this->signature, 'v4' ) === 0) {
$pathArgs[rawurlencode($name)] = rawurlencode(strval($val));
} else {
$pathArgs[self::urlencodeWithSafe($name)] = self::urlencodeWithSafe(strval($val));
}
}
}else if($location === 'xml'){
$val = $this->transXmlByType($key, $value, $val, $transHolder);
if($val !== ''){
$xml[] = $val;
}
}else if($location === 'body'){
if(isset($result['body'])){
$obsException= new ObsException('duplicated body provided');
$obsException-> setExceptionType('client');
throw $obsException;
}
if($type === 'file'){
if(!file_exists($val)){
$obsException= new ObsException('file[' .$val. '] does not exist');
$obsException-> setExceptionType('client');
throw $obsException;
}
$result['body'] = new Stream(fopen($val, 'r'));
$fileFlag = true;
}else if($type === 'stream'){
$result['body'] = $val;
} else if ($type === 'json') {
//TODO
$jsonData = json_encode($val);
if (!$jsonData) {
$obsException= new ObsException('input is invalid, since it is not json data');
$obsException-> setExceptionType('client');
throw $obsException;
}
$result['body'] = strval($jsonData);
} else{
$result['body'] = strval($val);
}
}else if($location === 'response'){
$model[$key] = ['value' => $val, 'type' => $type];
}
}
}
if($dnsParam){
if($this -> pathStyle){
$requestUrl = $requestUrl . '/' . $dnsParam;
}else{
$defaultPort = strtolower($url['scheme']) === 'https' ? '443' : '80';
$host = $this -> isCname ? $host : $dnsParam. '.' . $host;
$requestUrl = $url['scheme'] . '://' . $host . ':' . (isset($url['port']) ? $url['port'] : $defaultPort);
}
}
if($uriParam){
$requestUrl = $requestUrl . '/' . $uriParam;
}
if(!empty($pathArgs)){
$requestUrl .= '?';
$_pathArgs = [];
foreach ($pathArgs as $key => $value){
$_pathArgs[] = $value === null || $value === '' ? $key : $key . '=' . $value;
}
$requestUrl .= implode('&', $_pathArgs);
}
}
if($xml || (isset($requestConfig['data']['xmlAllowEmpty']) && $requestConfig['data']['xmlAllowEmpty'])){
$body[] = '<';
$xmlRoot = $requestConfig['data']['xmlRoot']['name'];
$body[] = $xmlRoot;
$body[] = '>';
$body[] = implode('', $xml);
$body[] = '</';
$body[] = $xmlRoot;
$body[] = '>';
$headers['Content-Type'] = 'application/xml';
$result['body'] = implode('', $body);
ObsLog::commonLog(DEBUG, 'request content ' . $result['body']);
if(isset($requestConfig['data']['contentMd5']) && $requestConfig['data']['contentMd5']){
$headers['Content-MD5'] = base64_encode(md5($result['body'],true));
}
}
if($fileFlag && ($result['body'] instanceof StreamInterface)){
if($this->methodName === 'uploadPart' && (isset($model['Offset']) || isset($model['PartSize']))){
$bodySize = $result['body'] ->getSize();
if(isset($model['Offset'])){
$offset = intval($model['Offset']['value']);
$offset = $offset >= 0 && $offset < $bodySize ? $offset : 0;
}else{
$offset = 0;
}
if(isset($model['PartSize'])){
$partSize = intval($model['PartSize']['value']);
$partSize = $partSize > 0 && $partSize <= ($bodySize - $offset) ? $partSize : $bodySize - $offset;
}else{
$partSize = $bodySize - $offset;
}
$result['body'] -> rewind();
$result['body'] -> seek($offset);
$headers['Content-Length'] = $partSize;
}else if(isset($headers['Content-Length'])){
$bodySize = $result['body'] -> getSize();
if(intval($headers['Content-Length']) > $bodySize){
$headers['Content-Length'] = $bodySize;
}
}
}
$constants = Constants::selectConstants($this -> signature);
if($this->securityToken){
$headers[$constants::SECURITY_TOKEN_HEAD] = $this->securityToken;
}
$headers['Host'] = $host;
$result['host'] = $host;
$result['method'] = $method;
$result['headers'] = $headers;
$result['pathArgs'] = $pathArgs;
$result['dnsParam'] = $dnsParam;
$result['uriParam'] = $uriParam;
$result['requestUrl'] = $requestUrl;
return $result;
}
}