/class.s3.php
PHP | 331 lines | 255 code | 60 blank | 16 comment | 38 complexity | 07ca76b1d341c533bec462c570771c6b MD5 | raw file
- <?PHP
- // This is a fresh rewrite of the previous S3 class using PHP 5.
- // All transfers are done using PHP's native curl extension rather
- // than piping everything to the command line as before. (That was
- // a dirty hack in hindsight.) Copying S3 objects is now supported
- // as well. If you'd like to access the previous version, you may do
- // so here: http://code.google.com/p/php-aws/source/browse/branches/original-stable/
- class S3
- {
- private $key;
- private $privateKey;
- private $host;
- private $date;
- private $curlInfo;
- public function __construct($key, $private_key, $host = 's3.amazonaws.com')
- {
- $this->key = $key;
- $this->privateKey = $private_key;
- $this->host = $host;
- $this->date = gmdate('D, d M Y H:i:s T');
- return true;
- }
- public function listBuckets()
- {
- $request = array('verb' => 'GET', 'resource' => '/services/Walrus' . '/');
- $result = $this->sendRequest($request);
- $xml = simplexml_load_string($result);
- if($xml === false || !isset($xml->Buckets->Bucket))
- return false;
- $buckets = array();
- foreach($xml->Buckets->Bucket as $bucket)
- $buckets[] = (string) $bucket->Name;
- return $buckets;
- }
- public function createBucket($name)
- {
- $request = array('verb' => 'PUT', 'resource' => "/$name/");
- $result = $this->sendRequest($request);
- return $this->curlInfo['http_code'] == '200';
- }
- public function deleteBucket($name)
- {
- $request = array('verb' => 'DELETE', 'resource' => "/$name/");
- $result = $this->sendRequest($request);
- return $this->curlInfo['http_code'] == '204';
- }
- public function getBucketLocation($name)
- {
- $request = array('verb' => 'GET', 'resource' => "/$name/?location");
- $result = $this->sendRequest($request);
- $xml = simplexml_load_string($result);
- if($xml === false)
- return false;
- return (string) $xml->LocationConstraint;
- }
- public function getBucketContents($name, $prefix = null, $marker = null, $delimeter = null, $max_keys = null)
- {
- $contents = array();
- do
- {
- $q = array();
- if(!is_null($prefix)) $q[] = 'prefix=' . $prefix;
- if(!is_null($marker)) $q[] = 'marker=' . $marker;
- if(!is_null($delimeter)) $q[] = 'delimeter=' . $delimeter;
- if(!is_null($max_keys)) $q[] = 'max-keys=' . $max_keys;
- $q = implode('&', $q);
- if(strlen($q) > 0)
- $q = '?' . $q;
- $request = array('verb' => 'GET', 'resource' => "/$name/$q");
- $result = $this->sendRequest($request);
- $xml = simplexml_load_string($result);
- if($xml === false)
- return false;
- foreach($xml->Contents as $item)
- $contents[(string) $item->Key] = array('LastModified' => (string) $item->LastModified, 'ETag' => (string) $item->ETag, 'Size' => (string) $item->Size);
- $marker = (string) $xml->Marker;
- }
- while((string) $xml->IsTruncated == 'true' && is_null($max_keys));
- return $contents;
- }
- public function uploadFile($bucket_name, $s3_path, $fs_path, $web_accessible = false, $headers = null)
- {
- // Some useful headers you can set manually by passing in an associative array...
- // Cache-Control
- // Content-Type
- // Content-Disposition (alternate filename to present during web download)
- // Content-Encoding
- // x-amz-meta-*
- // x-amz-acl (private, public-read, public-read-write, authenticated-read)
- $request = array('verb' => 'PUT',
- 'resource' => "/$bucket_name/$s3_path",
- 'content-md5' => $this->base64(md5_file($fs_path)));
- $fh = fopen($fs_path, 'r');
- $curl_opts = array('CURLOPT_PUT' => true,
- 'CURLOPT_INFILE' => $fh,
- 'CURLOPT_INFILESIZE' => filesize($fs_path),
- 'CURLOPT_CUSTOMREQUEST' => 'PUT');
- if(is_null($headers))
- $headers = array();
- $headers['Content-MD5'] = $request['content-md5'];
- if($web_accessible === true && !isset($headers['x-amz-acl']))
- $headers['x-amz-acl'] = 'public-read';
- if(!isset($headers['Content-Type']))
- {
- $ext = strtolower(pathinfo($fs_path, PATHINFO_EXTENSION));
- $headers['Content-Type'] = isset($this->mimeTypes[$ext]) ? $this->mimeTypes[$ext] : 'application/octet-stream';
- }
- $request['content-type'] = $headers['Content-Type'];
- $result = $this->sendRequest($request, $headers, $curl_opts);
- fclose($fh);
- return $this->curlInfo['http_code'] == '200';
- }
- public function deleteObject($bucket_name, $s3_path)
- {
- $request = array('verb' => 'DELETE', 'resource' => "/$bucket_name/$s3_path");
- $result = $this->sendRequest($request);
- return $this->curlInfo['http_code'] == '204';
- }
- public function copyObject($bucket_name, $s3_path, $dest_bucket_name, $dest_s3_path)
- {
- $request = array('verb' => 'PUT', 'resource' => "/$dest_bucket_name/$dest_s3_path");
- $headers = array('x-amz-copy-source' => "/$bucket_name/$s3_path");
- $result = $this->sendRequest($request, $headers);
- if($this->curlInfo['http_code'] != '200')
- return false;
- $xml = simplexml_load_string($result);
- if($xml === false)
- return false;
- return isset($xml->LastModified);
- }
- public function getObjectInfo($bucket_name, $s3_path)
- {
- $request = array('verb' => 'HEAD', 'resource' => "/$bucket_name/$s3_path");
- $curl_opts = array('CURLOPT_HEADER' => true, 'CURLOPT_NOBODY' => true);
- $result = $this->sendRequest($request, null, $curl_opts);
- $xml = @simplexml_load_string($result);
- if($xml !== false)
- return false;
- preg_match_all('/^(\S*?): (.*?)$/ms', $result, $matches);
- $info = array();
- for($i = 0; $i < count($matches[1]); $i++)
- $info[$matches[1][$i]] = $matches[2][$i];
- if(!isset($info['Last-Modified']))
- return false;
- return $info;
- }
- public function downloadFile($bucket_name, $s3_path, $fs_path)
- {
- $request = array('verb' => 'GET', 'resource' => "/$bucket_name/$s3_path");
- $fh = fopen($fs_path, 'w');
- $curl_opts = array('CURLOPT_FILE' => $fh);
- if(is_null($headers))
- $headers = array();
- $result = $this->sendRequest($request, $headers, $curl_opts);
- fclose($fh);
- return $this->curlInfo['http_code'] == '200';
- }
- public function getAuthenticatedURLRelative($bucket_name, $s3_path, $seconds_till_expires = 3600)
- {
- return $this->getAuthenticatedURL($bucket_name, $s3_path, gmmktime() + $seconds_till_expires);
- }
- public function getAuthenticatedURL($bucket_name, $s3_path, $expires_on)
- {
- // $expires_on must be a GMT Unix timestamp
- $request = array('verb' => 'GET', 'resource' => "/$bucket_name/$s3_path", 'date' => $expires_on);
- $signature = urlencode($this->signature($request));
-
- $url = sprintf("http://%s.s3.amazonaws.com/%s?AWSAccessKeyId=%s&Expires=%s&Signature=%s",
- $bucket_name,
- $s3_path,
- $this->key,
- $expires_on,
- $signature);
- return $url;
- }
- private function sendRequest($request, $headers = null, $curl_opts = null)
- {
- if(is_null($headers))
- $headers = array();
- $headers['Date'] = $this->date;
- $headers['Authorization'] = 'AWS ' . $this->key . ':' . $this->signature($request, $headers);
- foreach($headers as $k => $v)
- $headers[$k] = "$k: $v";
- $uri = 'http://' . $this->host . $request['resource'];
- $ch = curl_init();
- curl_setopt($ch, CURLOPT_URL, $uri);
- curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $request['verb']);
- curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
- // curl_setopt($ch, CURLOPT_VERBOSE, true);
- if(is_array($curl_opts))
- {
- foreach($curl_opts as $k => $v)
- curl_setopt($ch, constant($k), $v);
- }
- $result = curl_exec($ch);
- $this->curlInfo = curl_getinfo($ch);
- curl_close($ch);
- return $result;
- }
- private function signature($request, $headers = null)
- {
- if(is_null($headers))
- $headers = array();
- $CanonicalizedAmzHeadersArr = array();
- $CanonicalizedAmzHeadersStr = '';
- foreach($headers as $k => $v)
- {
- $k = strtolower($k);
- if(substr($k, 0, 5) != 'x-amz') continue;
- if(isset($CanonicalizedAmzHeadersArr[$k]))
- $CanonicalizedAmzHeadersArr[$k] .= ',' . trim($v);
- else
- $CanonicalizedAmzHeadersArr[$k] = trim($v);
- }
- ksort($CanonicalizedAmzHeadersArr);
- foreach($CanonicalizedAmzHeadersArr as $k => $v)
- $CanonicalizedAmzHeadersStr .= "$k:$v\n";
- $str = $request['verb'] . "\n";
- $str .= isset($request['content-md5']) ? $request['content-md5'] . "\n" : "\n";
- $str .= isset($request['content-type']) ? $request['content-type'] . "\n" : "\n";
- $str .= isset($request['date']) ? $request['date'] . "\n" : $this->date . "\n";
- $str .= $CanonicalizedAmzHeadersStr . preg_replace('/\?.*/', '', $request['resource']);
- $sha1 = $this->hasher($str);
- return $this->base64($sha1);
- }
- // Algorithm adapted (stolen) from http://pear.php.net/package/Crypt_HMAC/)
- private function hasher($data)
- {
- $key = $this->privateKey;
- if(strlen($key) > 64)
- $key = pack('H40', sha1($key));
- if(strlen($key) < 64)
- $key = str_pad($key, 64, chr(0));
- $ipad = (substr($key, 0, 64) ^ str_repeat(chr(0x36), 64));
- $opad = (substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64));
- return sha1($opad . pack('H40', sha1($ipad . $data)));
- }
- private function base64($str)
- {
- $ret = '';
- for($i = 0; $i < strlen($str); $i += 2)
- $ret .= chr(hexdec(substr($str, $i, 2)));
- return base64_encode($ret);
- }
- private function match($regex, $str, $i = 0)
- {
- if(preg_match($regex, $str, $match) == 1)
- return $match[$i];
- else
- return false;
- }
- private $mimeTypes = array("323" => "text/h323", "acx" => "application/internet-property-stream", "ai" => "application/postscript", "aif" => "audio/x-aiff", "aifc" => "audio/x-aiff", "aiff" => "audio/x-aiff",
- "asf" => "video/x-ms-asf", "asr" => "video/x-ms-asf", "asx" => "video/x-ms-asf", "au" => "audio/basic", "avi" => "video/quicktime", "axs" => "application/olescript", "bas" => "text/plain", "bcpio" => "application/x-bcpio", "bin" => "application/octet-stream", "bmp" => "image/bmp",
- "c" => "text/plain", "cat" => "application/vnd.ms-pkiseccat", "cdf" => "application/x-cdf", "cer" => "application/x-x509-ca-cert", "class" => "application/octet-stream", "clp" => "application/x-msclip", "cmx" => "image/x-cmx", "cod" => "image/cis-cod", "cpio" => "application/x-cpio", "crd" => "application/x-mscardfile",
- "crl" => "application/pkix-crl", "crt" => "application/x-x509-ca-cert", "csh" => "application/x-csh", "css" => "text/css", "dcr" => "application/x-director", "der" => "application/x-x509-ca-cert", "dir" => "application/x-director", "dll" => "application/x-msdownload", "dms" => "application/octet-stream", "doc" => "application/msword",
- "dot" => "application/msword", "dvi" => "application/x-dvi", "dxr" => "application/x-director", "eps" => "application/postscript", "etx" => "text/x-setext", "evy" => "application/envoy", "exe" => "application/octet-stream", "fif" => "application/fractals", "flr" => "x-world/x-vrml", "gif" => "image/gif",
- "gtar" => "application/x-gtar", "gz" => "application/x-gzip", "h" => "text/plain", "hdf" => "application/x-hdf", "hlp" => "application/winhlp", "hqx" => "application/mac-binhex40", "hta" => "application/hta", "htc" => "text/x-component", "htm" => "text/html", "html" => "text/html",
- "htt" => "text/webviewhtml", "ico" => "image/x-icon", "ief" => "image/ief", "iii" => "application/x-iphone", "ins" => "application/x-internet-signup", "isp" => "application/x-internet-signup", "jfif" => "image/pipeg", "jpe" => "image/jpeg", "jpeg" => "image/jpeg", "jpg" => "image/jpeg",
- "js" => "application/x-javascript", "latex" => "application/x-latex", "lha" => "application/octet-stream", "lsf" => "video/x-la-asf", "lsx" => "video/x-la-asf", "lzh" => "application/octet-stream", "m13" => "application/x-msmediaview", "m14" => "application/x-msmediaview", "m3u" => "audio/x-mpegurl", "man" => "application/x-troff-man",
- "mdb" => "application/x-msaccess", "me" => "application/x-troff-me", "mht" => "message/rfc822", "mhtml" => "message/rfc822", "mid" => "audio/mid", "mny" => "application/x-msmoney", "mov" => "video/quicktime", "movie" => "video/x-sgi-movie", "mp2" => "video/mpeg", "mp3" => "audio/mpeg",
- "mpa" => "video/mpeg", "mpe" => "video/mpeg", "mpeg" => "video/mpeg", "mpg" => "video/mpeg", "mpp" => "application/vnd.ms-project", "mpv2" => "video/mpeg", "ms" => "application/x-troff-ms", "mvb" => "application/x-msmediaview", "nws" => "message/rfc822", "oda" => "application/oda",
- "p10" => "application/pkcs10", "p12" => "application/x-pkcs12", "p7b" => "application/x-pkcs7-certificates", "p7c" => "application/x-pkcs7-mime", "p7m" => "application/x-pkcs7-mime", "p7r" => "application/x-pkcs7-certreqresp", "p7s" => "application/x-pkcs7-signature", "pbm" => "image/x-portable-bitmap", "pdf" => "application/pdf", "pfx" => "application/x-pkcs12",
- "pgm" => "image/x-portable-graymap", "pko" => "application/ynd.ms-pkipko", "pma" => "application/x-perfmon", "pmc" => "application/x-perfmon", "pml" => "application/x-perfmon", "pmr" => "application/x-perfmon", "pmw" => "application/x-perfmon", "png" => "image/png", "pnm" => "image/x-portable-anymap", "pot" => "application/vnd.ms-powerpoint", "ppm" => "image/x-portable-pixmap",
- "pps" => "application/vnd.ms-powerpoint", "ppt" => "application/vnd.ms-powerpoint", "prf" => "application/pics-rules", "ps" => "application/postscript", "pub" => "application/x-mspublisher", "qt" => "video/quicktime", "ra" => "audio/x-pn-realaudio", "ram" => "audio/x-pn-realaudio", "ras" => "image/x-cmu-raster", "rgb" => "image/x-rgb",
- "rmi" => "audio/mid", "roff" => "application/x-troff", "rtf" => "application/rtf", "rtx" => "text/richtext", "scd" => "application/x-msschedule", "sct" => "text/scriptlet", "setpay" => "application/set-payment-initiation", "setreg" => "application/set-registration-initiation", "sh" => "application/x-sh", "shar" => "application/x-shar",
- "sit" => "application/x-stuffit", "snd" => "audio/basic", "spc" => "application/x-pkcs7-certificates", "spl" => "application/futuresplash", "src" => "application/x-wais-source", "sst" => "application/vnd.ms-pkicertstore", "stl" => "application/vnd.ms-pkistl", "stm" => "text/html", "svg" => "image/svg+xml", "sv4cpio" => "application/x-sv4cpio",
- "sv4crc" => "application/x-sv4crc", "t" => "application/x-troff", "tar" => "application/x-tar", "tcl" => "application/x-tcl", "tex" => "application/x-tex", "texi" => "application/x-texinfo", "texinfo" => "application/x-texinfo", "tgz" => "application/x-compressed", "tif" => "image/tiff", "tiff" => "image/tiff",
- "tr" => "application/x-troff", "trm" => "application/x-msterminal", "tsv" => "text/tab-separated-values", "txt" => "text/plain", "uls" => "text/iuls", "ustar" => "application/x-ustar", "vcf" => "text/x-vcard", "vrml" => "x-world/x-vrml", "wav" => "audio/x-wav", "wcm" => "application/vnd.ms-works",
- "wdb" => "application/vnd.ms-works", "wks" => "application/vnd.ms-works", "wmf" => "application/x-msmetafile", "wps" => "application/vnd.ms-works", "wri" => "application/x-mswrite", "wrl" => "x-world/x-vrml", "wrz" => "x-world/x-vrml", "xaf" => "x-world/x-vrml", "xbm" => "image/x-xbitmap", "xla" => "application/vnd.ms-excel",
- "xlc" => "application/vnd.ms-excel", "xlm" => "application/vnd.ms-excel", "xls" => "application/vnd.ms-excel", "xlt" => "application/vnd.ms-excel", "xlw" => "application/vnd.ms-excel", "xof" => "x-world/x-vrml", "xpm" => "image/x-xpixmap", "xwd" => "image/x-xwindowdump", "z" => "application/x-compress", "zip" => "application/zip");
- }