1: <?php
2:
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25: class FileResponse extends Object implements IPresenterResponse
26: {
27:
28: private $file;
29:
30:
31: private $contentType;
32:
33:
34: private $name;
35:
36:
37: public $resuming = TRUE;
38:
39:
40: 41: 42: 43: 44:
45: public function __construct($file, $name = NULL, $contentType = NULL)
46: {
47: if (!is_file($file)) {
48: throw new BadRequestException("File '$file' doesn't exist.");
49: }
50:
51: $this->file = $file;
52: $this->name = $name ? $name : basename($file);
53: $this->contentType = $contentType ? $contentType : 'application/octet-stream';
54: }
55:
56:
57:
58: 59: 60: 61:
62: final public function getFile()
63: {
64: return $this->file;
65: }
66:
67:
68:
69: 70: 71: 72:
73: final public function getName()
74: {
75: return $this->name;
76: }
77:
78:
79:
80: 81: 82: 83:
84: final public function getContentType()
85: {
86: return $this->contentType;
87: }
88:
89:
90:
91: 92: 93: 94:
95: public function send(IHttpRequest $httpRequest, IHttpResponse $httpResponse)
96: {
97: $httpResponse->setContentType($this->contentType);
98: $httpResponse->setHeader('Content-Disposition', 'attachment; filename="' . $this->name . '"');
99:
100: $filesize = $length = filesize($this->file);
101: $handle = fopen($this->file, 'r');
102:
103: if ($this->resuming) {
104: $httpResponse->setHeader('Accept-Ranges', 'bytes');
105: if (preg_match('#^bytes=(\d*)-(\d*)\z#', $httpRequest->getHeader('Range'), $matches)) {
106: list(, $start, $end) = $matches;
107: if ($start === '') {
108: $start = max(0, $filesize - $end);
109: $end = $filesize - 1;
110:
111: } elseif ($end === '' || $end > $filesize - 1) {
112: $end = $filesize - 1;
113: }
114: if ($end < $start) {
115: $httpResponse->setCode(416);
116: return;
117: }
118:
119: $httpResponse->setCode(206);
120: $httpResponse->setHeader('Content-Range', 'bytes ' . $start . '-' . $end . '/' . $filesize);
121: $length = $end - $start + 1;
122: fseek($handle, $start);
123:
124: } else {
125: $httpResponse->setHeader('Content-Range', 'bytes 0-' . ($filesize - 1) . '/' . $filesize);
126: }
127: }
128:
129: $httpResponse->setHeader('Content-Length', $length);
130: while (!feof($handle) && $length > 0) {
131: echo $s = fread($handle, min(4e6, $length));
132: $length -= strlen($s);
133: }
134: fclose($handle);
135: }
136:
137: }
138: