6 * Note that we use gzopen()/gzwrite() instead of gzcompress() even if
7 * gzcompress() is available. Gzcompress() puts out data with
8 * different headers --- in particular it includes an "adler-32"
9 * checksum rather than a "CRC32" checksum. Since we need the CRC-32
10 * checksum, and since not all PHP's have gzcompress(), we'll just
11 * stick with gzopen().
13 function gzip_cleanup () {
17 @unlink($gzip_tmpfile);
20 function gzip_tempnam () {
24 //FIXME: does this work on non-unix machines?
25 if (is_writable("/tmp"))
26 $gzip_tmpfile = tempnam("/tmp", "wkzip");
28 $gzip_tmpfile = tempnam(TEMP_DIR, "wkzip");
29 register_shutdown_function("gzip_cleanup");
34 function gzip_compress ($data) {
35 $filename = gzip_tempnam();
36 if (!($fp = gzopen($filename, "wb")))
37 trigger_error(sprintf("%s failed", 'gzopen'), E_USER_ERROR);
38 gzwrite($fp, $data, strlen($data));
40 trigger_error(sprintf("%s failed", 'gzclose'), E_USER_ERROR);
43 if (!($fp = fopen($filename,"rb"))) {
44 trigger_error(sprintf("%s failed", 'fopen'), E_USER_ERROR);
47 $z .= fread($fp,1024);
50 trigger_error(sprintf("%s failed", 'fclose'), E_USER_ERROR);
55 function gzip_uncompress ($data) {
56 $filename = gzip_tempnam();
57 if (!($fp = fopen($filename, "wb")))
58 trigger_error(sprintf("%s failed", 'fopen'), E_USER_ERROR);
59 fwrite($fp, $data, strlen($data));
61 trigger_error(sprintf("%s failed", 'fclose'), E_USER_ERROR);
63 if (!($fp = gzopen($filename, "rb")))
64 trigger_error(sprintf("%s failed", 'gzopen'), E_USER_ERROR);
66 while ($buf = gzread($fp, 4096))
69 trigger_error(sprintf("%s failed", 'gzclose'), E_USER_ERROR);
76 * CRC32 computation. Hacked from Info-zip's zip-2.3 source code.
79 function zip_crc32 ($str, $crc = 0)
81 static $zip_crc_table;
83 if (empty($zip_crc_table)) {
84 /* NOTE: The range of PHP ints seems to be -0x80000000 to 0x7fffffff.
85 * So, had to munge these constants.
88 = array (0x00000000, 0x77073096, -0x11f19ed4, -0x66f6ae46, 0x076dc419,
89 0x706af48f, -0x169c5acb, -0x619b6a5d, 0x0edb8832, 0x79dcb8a4,
90 -0x1f2a16e2, -0x682d2678, 0x09b64c2b, 0x7eb17cbd, -0x1847d2f9,
91 -0x6f40e26f, 0x1db71064, 0x6ab020f2, -0x0c468eb8, -0x7b41be22,
92 0x1adad47d, 0x6ddde4eb, -0x0b2b4aaf, -0x7c2c7a39, 0x136c9856,
93 0x646ba8c0, -0x029d0686, -0x759a3614, 0x14015c4f, 0x63066cd9,
94 -0x05f0c29d, -0x72f7f20b, 0x3b6e20c8, 0x4c69105e, -0x2a9fbe1c,
95 -0x5d988e8e, 0x3c03e4d1, 0x4b04d447, -0x2df27a03, -0x5af54a95,
96 0x35b5a8fa, 0x42b2986c, -0x2444362a, -0x534306c0, 0x32d86ce3,
97 0x45df5c75, -0x2329f231, -0x542ec2a7, 0x26d930ac, 0x51de003a,
98 -0x3728ae80, -0x402f9eea, 0x21b4f4b5, 0x56b3c423, -0x30456a67,
99 -0x47425af1, 0x2802b89e, 0x5f058808, -0x39f3264e, -0x4ef416dc,
100 0x2f6f7c87, 0x58684c11, -0x3e9ee255, -0x4999d2c3, 0x76dc4190,
101 0x01db7106, -0x672ddf44, -0x102aefd6, 0x71b18589, 0x06b6b51f,
102 -0x60401b5b, -0x17472bcd, 0x7807c9a2, 0x0f00f934, -0x69f65772,
103 -0x1ef167e8, 0x7f6a0dbb, 0x086d3d2d, -0x6e9b9369, -0x199ca3ff,
104 0x6b6b51f4, 0x1c6c6162, -0x7a9acf28, -0x0d9dffb2, 0x6c0695ed,
105 0x1b01a57b, -0x7df70b3f, -0x0af03ba9, 0x65b0d9c6, 0x12b7e950,
106 -0x74414716, -0x03467784, 0x62dd1ddf, 0x15da2d49, -0x732c830d,
107 -0x042bb39b, 0x4db26158, 0x3ab551ce, -0x5c43ff8c, -0x2b44cf1e,
108 0x4adfa541, 0x3dd895d7, -0x5b2e3b93, -0x2c290b05, 0x4369e96a,
109 0x346ed9fc, -0x529877ba, -0x259f4730, 0x44042d73, 0x33031de5,
110 -0x55f5b3a1, -0x22f28337, 0x5005713c, 0x270241aa, -0x41f4eff0,
111 -0x36f3df7a, 0x5768b525, 0x206f85b3, -0x46992bf7, -0x319e1b61,
112 0x5edef90e, 0x29d9c998, -0x4f2f67de, -0x3828574c, 0x59b33d17,
113 0x2eb40d81, -0x4842a3c5, -0x3f459353, -0x12477ce0, -0x65404c4a,
114 0x03b6e20c, 0x74b1d29a, -0x152ab8c7, -0x622d8851, 0x04db2615,
115 0x73dc1683, -0x1c9cf4ee, -0x6b9bc47c, 0x0d6d6a3e, 0x7a6a5aa8,
116 -0x1bf130f5, -0x6cf60063, 0x0a00ae27, 0x7d079eb1, -0x0ff06cbc,
117 -0x78f75c2e, 0x1e01f268, 0x6906c2fe, -0x089da8a3, -0x7f9a9835,
118 0x196c3671, 0x6e6b06e7, -0x012be48a, -0x762cd420, 0x10da7a5a,
119 0x67dd4acc, -0x06462091, -0x71411007, 0x17b7be43, 0x60b08ed5,
120 -0x29295c18, -0x5e2e6c82, 0x38d8c2c4, 0x4fdff252, -0x2e44980f,
121 -0x5943a899, 0x3fb506dd, 0x48b2364b, -0x27f2d426, -0x50f5e4b4,
122 0x36034af6, 0x41047a60, -0x209f103d, -0x579820ab, 0x316e8eef,
123 0x4669be79, -0x349e4c74, -0x43997ce6, 0x256fd2a0, 0x5268e236,
124 -0x33f3886b, -0x44f4b8fd, 0x220216b9, 0x5505262f, -0x3a45c442,
125 -0x4d42f4d8, 0x2bb45a92, 0x5cb36a04, -0x3d280059, -0x4a2f30cf,
126 0x2cd99e8b, 0x5bdeae1d, -0x649b3d50, -0x139c0dda, 0x756aa39c,
127 0x026d930a, -0x63f6f957, -0x14f1c9c1, 0x72076785, 0x05005713,
128 -0x6a40b57e, -0x1d4785ec, 0x7bb12bae, 0x0cb61b38, -0x6d2d7165,
129 -0x1a2a41f3, 0x7cdcefb7, 0x0bdbdf21, -0x792c2d2c, -0x0e2b1dbe,
130 0x68ddb3f8, 0x1fda836e, -0x7e41e933, -0x0946d9a5, 0x6fb077e1,
131 0x18b74777, -0x77f7a51a, -0x00f09590, 0x66063bca, 0x11010b5c,
132 -0x709a6101, -0x079d5197, 0x616bffd3, 0x166ccf45, -0x5ff51d88,
133 -0x28f22d12, 0x4e048354, 0x3903b3c2, -0x5898d99f, -0x2f9fe909,
134 0x4969474d, 0x3e6e77db, -0x512e95b6, -0x2629a524, 0x40df0b66,
135 0x37d83bf0, -0x564351ad, -0x2144613b, 0x47b2cf7f, 0x30b5ffe9,
136 -0x42420de4, -0x35453d76, 0x53b39330, 0x24b4a3a6, -0x452fc9fb,
137 -0x3228f96d, 0x54de5729, 0x23d967bf, -0x4c9985d2, -0x3b9eb548,
138 0x5d681b02, 0x2a6f2b94, -0x4bf441c9, -0x3cf3715f, 0x5a05df1b,
143 for ($i = 0; $i < strlen($str); $i++) {
144 $crc = ( $zip_crc_table[($crc ^ ord($str[$i])) & 0xff]
145 ^ (($crc >> 8) & 0xffffff) );
150 define('GZIP_MAGIC', "\037\213");
151 define('GZIP_DEFLATE', 010);
153 function zip_deflate ($content)
155 // Compress content, and suck information from gzip header.
156 if (function_exists('gzencode'))
157 $z = gzencode($content);
159 $z = gzip_compress($content);
161 // Suck OS type byte from gzip header. FIXME: this smells bad.
163 extract(unpack("a2magic/Ccomp_type/Cflags/@9/Cos_type", $z));
165 if ($magic != GZIP_MAGIC)
166 trigger_error(sprintf("Bad %s", "gzip magic"), E_USER_ERROR);
167 if ($comp_type != GZIP_DEFLATE)
168 trigger_error(sprintf("Bad %s", "gzip comp type"), E_USER_ERROR);
169 if (($flags & 0x3e) != 0)
170 trigger_error(sprintf("Bad %s", sprintf("flags (0x%02x)", $flags)),
174 $gz_data_len = strlen($z) - $gz_header_len - 8;
175 if ($gz_data_len < 0)
176 trigger_error("not enough gzip output?", E_USER_ERROR);
178 extract(unpack("Vcrc32", substr($z, $gz_header_len + $gz_data_len)));
180 return array(substr($z, $gz_header_len, $gz_data_len), // gzipped data
186 function zip_inflate ($data, $crc32, $uncomp_size)
188 if (function_exists('gzinflate')) {
189 $data = gzinflate($data);
190 if (strlen($data) != $uncomp_size)
191 trigger_error("not enough output from gzinflate", E_USER_ERROR);
192 $zcrc32 = zip_crc32($data);
193 if ($zcrc32 < 0) { // force unsigned
194 $zcrc32 += 4294967296;
196 if ($crc32 < 0) { // force unsigned
197 $crc32 += 4294967296;
199 if ($zcrc32 != $crc32)
200 trigger_error("CRC32 mismatch: calculated=$zcrc32, expected=$crc32", E_USER_ERROR);
204 if (!function_exists('gzopen')) {
206 $request->finish(_("Can't inflate data: zlib support not enabled in this PHP"));
209 // Reconstruct gzip header and ungzip the data.
210 $mtime = time(); //(Bogus mtime)
212 return gzip_uncompress( pack("a2CxV@10", GZIP_MAGIC, GZIP_DEFLATE, $mtime)
214 . pack("VV", $crc32, $uncomp_size) );
217 function unixtime2dostime ($unix_time) {
219 $unix_time++; // Round up to even seconds.
221 list ($year,$month,$mday,$hour,$min,$sec)
222 = explode(" ", date("Y n j G i s", $unix_time));
225 list ($year,$month,$mday,$hour,$min,$sec) = array(1980, 1, 1, 0, 0, 0);
227 $dosdate = (($year - 1980) << 9) | ($month << 5) | $mday;
228 $dostime = ($hour << 11) | ($min << 5) | ($sec >> 1);
230 return array($dosdate, $dostime);
233 function dostime2unixtime ($dosdate, $dostime) {
234 $mday = $dosdate & 0x1f;
235 $month = ($dosdate >> 5) & 0x0f;
236 $year = 1980 + (($dosdate >> 9) & 0x7f);
238 $sec = ($dostime & 0x1f) * 2;
239 $min = ($dostime >> 5) & 0x3f;
240 $hour = ($dostime >> 11) & 0x1f;
242 return mktime($hour, $min, $sec, $month, $mday, $year);
247 * Class for zipfile creation.
249 define('ZIP_DEFLATE', GZIP_DEFLATE);
250 define('ZIP_STORE', 0);
251 define('ZIP_CENTHEAD_MAGIC', "PK\001\002");
252 define('ZIP_LOCHEAD_MAGIC', "PK\003\004");
253 define('ZIP_ENDDIR_MAGIC', "PK\005\006");
257 function ZipWriter ($comment = "", $zipname = "archive.zip") {
258 $this->comment = $comment;
260 $this->dir = ""; // "Central directory block"
261 $this->offset = 0; // Current file position.
263 $zipname = addslashes($zipname);
264 header("Content-Type: application/zip; name=\"$zipname\"");
265 header("Content-Disposition: attachment; filename=\"$zipname\"");
268 function addSrcFile ($target, $src, $attrib = false) {
269 if (empty($attrib['mtime']))
270 $attrib = array('mtime' => filemtime($src), 'is_ascii' => 0);
271 if (check_php_version(4,3))
272 $this->addRegularFile($target, file_get_contents($src), $attrib);
274 $this->addRegularFile($target, join('', file($src)), $attrib);
277 function addRegularFile ($filename, $content, $attrib = false) {
281 $size = strlen($content);
282 if (function_exists('gzopen')) {
283 list ($data, $crc32, $os_type) = zip_deflate($content);
284 if (strlen($data) < $size) {
285 $content = $data; // Use compressed data.
286 $comp_type = ZIP_DEFLATE;
289 unset($crc32); // force plain store.
293 $os_type = 3; // 0 = FAT --- hopefully this is good enough.
294 /* (Another choice might be 3 = Unix) */
297 if (!isset($crc32)) {
298 $comp_type = ZIP_STORE;
299 $crc32 = zip_crc32($content);
302 if (!empty($attrib['write_protected']))
303 $atx = (0100444 << 16) | 1; // S_IFREG + read permissions to
306 $atx = (0100644 << 16); // Add owner write perms.
308 $ati = $attrib['is_ascii'] ? 1 : 0;
310 if (empty($attrib['mtime']))
311 $attrib['mtime'] = time();
312 list ($mod_date, $mod_time) = unixtime2dostime($attrib['mtime']);
314 // Construct parts common to "Local file header" and "Central
315 // directory file header."
316 if (!isset($attrib['extra_field']))
317 $attrib['extra_field'] = '';
318 if (!isset($attrib['file_comment']))
319 $attrib['file_comment'] = '';
321 $head = pack("vvvvvVVVvv",
322 20, // Version needed to extract (FIXME: is this right?)
323 0, // Gen purp bit flag
331 strlen($attrib['extra_field']));
333 // Construct the "Local file header"
334 $lheader = ZIP_LOCHEAD_MAGIC . $head . $filename
335 . $attrib['extra_field'];
337 // Construct the "central directory file header"
338 $this->dir .= pack("a4CC",
340 23, // Version made by (FIXME: is this right?)
343 $this->dir .= pack("vvvVV",
344 strlen($attrib['file_comment']),
345 0, // Disk number start
346 $ati, // Internal file attributes
347 $atx, // External file attributes
348 $this->offset); // Relative offset of local header
349 $this->dir .= $filename . $attrib['extra_field']
350 . $attrib['file_comment'];
352 // Output the "Local file header" and file contents.
356 $this->offset += strlen($lheader) + strlen($content);
361 // Output the central directory
364 // Construct the "End of central directory record"
365 echo ZIP_ENDDIR_MAGIC;
367 0, // Number of this disk.
368 0, // Number of disk with start of c dir
369 $this->nfiles, // Number entries on this disk
370 $this->nfiles, // Number entries
371 strlen($this->dir), // Size of central directory
372 $this->offset, // Offset of central directory
373 strlen($this->comment));
380 * Class for reading zip files. Handles buffers also.
384 * Many of the ExitWiki()'s should probably be warn()'s (eg. CRC mismatch).
386 * Only a subset of zip formats is recognized. (I think that
387 * unsupported formats will be recognized as such rather than silently
390 * We don't read the central directory. This means we don't see the
391 * file attributes (text? read-only?), or file comments.
393 * Right now we ignore the file mod date and time, since we don't need it.
397 function ZipReader ($zipfile) {
398 if (!is_string($zipfile)) { // filepointer: File already open
399 $this->fp = $zipfile;
401 } elseif (((ord($zipfile[0]) * 256 + ord($zipfile[1])) % 31 == 0) // buffer
402 and (substr($zipfile,0,2) == "\037\213")
403 or (substr($zipfile,0,2) == "x\332")) { // 120, 218
405 $this->buf = $zipfile;
409 $this->zipfile = $zipfile;
410 if (!($this->fp = fopen($zipfile, "rb"))) {
411 trigger_error(sprintf(_("Can't open zip file '%s' for reading"),
412 $zipfile), E_USER_ERROR);
417 function _read ($nbytes) {
419 $chunk = fread($this->fp, $nbytes);
420 if (strlen($chunk) != $nbytes)
421 trigger_error(_("Unexpected EOF in zip file"), E_USER_ERROR);
423 } elseif ($this->buf) {
424 if (strlen($this->buf) < $nbytes)
425 trigger_error(_("Unexpected EOF in zip file"), E_USER_ERROR);
426 $chunk = substr($this->buf, 0, $nbytes);
427 $this->buf = substr($this->buf, $nbytes);
440 function readFile () {
441 $head = $this->_read(30); // FIXME: This is bad for gzip compressed buffers
443 extract(unpack("a4magic/vreq_version/vflags/vcomp_type"
444 . "/vmod_time/vmod_date"
445 . "/Vcrc32/Vcomp_size/Vuncomp_size"
446 . "/vfilename_len/vextrafld_len",
449 if ($magic != ZIP_LOCHEAD_MAGIC) {
451 //$x = substr($magic,0,3);
452 if (substr($magic,0,3) == "\037\213\225")
453 //and (substr($magic,3,1) & 0x3e) == 0)
457 $this->fp = fopen($this->zipfile, "rb");
458 $content = $this->_read(filesize($this->fp));
460 $content = $this->buf;
463 $data = zip_deflate($content);
464 return array($filename, $data, $attrib);
466 if ($magic != ZIP_CENTHEAD_MAGIC)
467 // FIXME: better message?
468 ExitWiki(sprintf("Unsupported ZIP header type: %s", $magic));
469 return $this->done();
471 if (($flags & 0x21) != 0)
472 ExitWiki("Encryption and/or zip patches not supported.");
473 if (($flags & 0x08) != 0)
474 // FIXME: better message?
475 ExitWiki("Postponed CRC not yet supported.");
477 $filename = $this->_read($filename_len);
478 //FIXME: we should probably check $req_version.
479 $attrib['mtime'] = dostime2unixtime($mod_date, $mod_time);
480 if ($extrafld_len != 0)
481 $attrib['extra_field'] = $this->_read($extrafld_len);
483 $data = $this->_read($comp_size);
485 if ($comp_type == ZIP_DEFLATE) {
486 $data = zip_inflate($data, $crc32, $uncomp_size);
488 else if ($comp_type == ZIP_STORE) {
489 $crc = zip_crc32($data);
491 ExitWiki(sprintf("CRC mismatch %x != %x", $crc, $crc32));
494 ExitWiki(sprintf("Compression method %s unsupported",
497 if (strlen($data) != $uncomp_size)
498 ExitWiki(sprintf("Uncompressed size mismatch %d != %d",
499 strlen($data), $uncomp_size));
501 return array($filename, $data, $attrib);
506 * Routines for Mime mailification of pages.
508 //FIXME: these should go elsewhere (libmime?).
511 * Routines for quoted-printable en/decoding.
513 function QuotedPrintableEncode ($string)
515 // Quote special characters in line.
518 // The complicated regexp is to force quoting of trailing spaces.
519 preg_match('/^([ !-<>-~]*)(?:([!-<>-~]$)|(.))/s', $string, $match);
520 $quoted .= $match[1] . $match[2];
521 if (!empty($match[3]))
522 $quoted .= sprintf("=%02X", ord($match[3]));
523 $string = substr($string, strlen($match[0]));
526 // This splits the line (preferably after white-space) into lines
527 // which are no longer than 76 chars (after adding trailing '=' for
528 // soft line break, but before adding \r\n.)
529 return preg_replace('/(?=.{77})(.{10,74}[ \t]|.{71,73}[^=][^=])/s',
530 "\\1=\r\n", $quoted);
533 function QuotedPrintableDecode ($string)
535 // Eliminate soft line-breaks.
536 $string = preg_replace('/=[ \t\r]*\n/', '', $string);
537 return quoted_printable_decode($string);
540 define('MIME_TOKEN_REGEXP', "[-!#-'*+.0-9A-Z^-~]+");
542 function MimeContentTypeHeader ($type, $subtype, $params)
544 $header = "Content-Type: $type/$subtype";
546 while (list($key, $val) = each($params)) {
547 //FIXME: what about non-ascii printables in $val?
548 if (!preg_match('/^' . MIME_TOKEN_REGEXP . '$/', $val))
549 $val = '"' . addslashes($val) . '"';
550 $header .= ";\r\n $key=$val";
552 return "$header\r\n";
555 function MimeMultipart ($parts)
557 global $mime_multipart_count;
559 // The string "=_" can not occur in quoted-printable encoded data.
560 $boundary = "=_multipart_boundary_" . ++$mime_multipart_count;
562 $head = MimeContentTypeHeader('multipart', 'mixed',
563 array('boundary' => $boundary));
565 $sep = "\r\n--$boundary\r\n";
567 return $head . $sep . implode($sep, $parts) . "\r\n--${boundary}--\r\n";
572 * http://www.nacs.uci.edu/indiv/ehood/MIME/2045/rfc2045.html
573 * http://www.faqs.org/rfcs/rfc2045.html
574 * (RFC 1521 has been superceeded by RFC 2045 & others).
576 * Also see http://www.faqs.org/rfcs/rfc2822.html
579 * Notes on content-transfer-encoding.
581 * "7bit" means short lines of US-ASCII.
582 * "8bit" means short lines of octets with (possibly) the high-order bit set.
583 * "binary" means lines are not necessarily short enough for SMTP
584 * transport, and non-ASCII characters may be present.
586 * Only "7bit", "quoted-printable", and "base64" are universally safe
587 * for transport via e-mail. (Though many MTAs can/will be configured to
588 * automatically convert encodings to a safe type if they receive
589 * mail encoded in '8bit' and/or 'binary' encodings.
591 function MimeifyPageRevision (&$page, &$revision) {
592 // $wikidb =& $revision->_wikidb;
593 // $page = $wikidb->getPage($revision->getName());
594 // FIXME: add 'hits' to $params
595 $params = array('pagename' => $page->getName(),
597 'author' => $revision->get('author'),
598 'owner' => $page->getOwner(),
599 'version' => $revision->getVersion(),
600 'lastmodified' => $revision->get('mtime'));
602 if ($page->get('mtime'))
603 $params['created'] = $page->get('mtime');
604 if ($page->get('locked'))
605 $params['flags'] = 'PAGE_LOCKED';
606 if (ENABLE_EXTERNAL_PAGES && $page->get('external'))
607 $params['flags'] = ($params['flags'] ? $params['flags'] . ',EXTERNAL_PAGE' : 'EXTERNAL_PAGE');
608 if ($revision->get('author_id'))
609 $params['author_id'] = $revision->get('author_id');
610 if ($revision->get('markup')) // what is the default? we must use 1
611 $params['markup'] = $revision->get('markup');
612 if ($revision->get('summary'))
613 $params['summary'] = $revision->get('summary');
614 if ($page->get('hits'))
615 $params['hits'] = $page->get('hits');
616 if ($page->get('owner'))
617 $params['owner'] = $page->get('owner');
618 if ($page->get('perm') and class_exists('PagePermission')) {
619 $acl = getPagePermissions($page);
620 $params['acl'] = $acl->asAclLines();
621 //TODO: convert to multiple lines? acl-view => groups,...; acl-edit => groups,...
624 $params['charset'] = $GLOBALS['charset'];
626 // Non-US-ASCII is not allowed in Mime headers (at least not without
627 // special handling) --- so we urlencode all parameter values.
628 foreach ($params as $key => $val)
629 $params[$key] = rawurlencode($val);
630 if (isset($params['acl']))
631 // default: "view:_EVERY; edit:_AUTHENTICATED; create:_AUTHENTICATED,_BOGOUSER; ".
632 // "list:_EVERY; remove:_ADMIN,_OWNER; change:_ADMIN,_OWNER; dump:_EVERY; "
633 $params['acl'] = str_replace(array("%3A","%3B%20","%2C"),array(":","; ",","),$params['acl']);
635 $out = MimeContentTypeHeader('application', 'x-phpwiki', $params);
636 $out .= sprintf("Content-Transfer-Encoding: %s\r\n",
637 STRICT_MAILABLE_PAGEDUMPS ? 'quoted-printable' : 'binary');
641 foreach ($revision->getContent() as $line) {
642 // This is a dirty hack to allow saving binary text files. See above.
643 $line = rtrim($line);
644 if (STRICT_MAILABLE_PAGEDUMPS)
645 $line = QuotedPrintableEncode(rtrim($line));
652 * Routines for parsing Mime-ified phpwiki pages.
654 function ParseRFC822Headers (&$string)
656 if (preg_match("/^From (.*)\r?\n/", $string, $match)) {
657 $headers['from '] = preg_replace('/^\s+|\s+$/', '', $match[1]);
658 $string = substr($string, strlen($match[0]));
661 while (preg_match('/^([!-9;-~]+) [ \t]* : [ \t]* '
662 . '( .* \r?\n (?: [ \t] .* \r?\n)* )/x',
665 $headers[strtolower($match[1])]
666 = preg_replace('/^\s+|\s+$/', '', $match[2]);
667 $string = substr($string, strlen($match[0]));
673 if (strlen($string) > 0) {
674 if (! preg_match("/^\r?\n/", $string, $match)) {
675 // No blank line after headers.
678 $string = substr($string, strlen($match[0]));
685 function ParseMimeContentType ($string)
687 // FIXME: Remove (RFC822 style comments).
690 if (!preg_match(':^\s*(' . MIME_TOKEN_REGEXP . ')\s*'
692 . '\s*(' . MIME_TOKEN_REGEXP . ')\s*:x',
694 ExitWiki(sprintf("Bad %s",'MIME content-type'));
696 $type = strtolower($match[1]);
697 $subtype = strtolower($match[2]);
698 $string = substr($string, strlen($match[0]));
701 while (preg_match('/^;\s*(' . MIME_TOKEN_REGEXP . ')\s*=\s*'
702 . '(?:(' . MIME_TOKEN_REGEXP . ')|"((?:[^"\\\\]|\\.)*)") \s*/sx',
704 //" <--kludge for brain-dead syntax coloring
705 if (strlen($match[2]))
708 $val = preg_replace('/[\\\\](.)/s', '\\1', $match[3]);
710 $param[strtolower($match[1])] = $val;
712 $string = substr($string, strlen($match[0]));
715 return array($type, $subtype, $param);
718 function ParseMimeMultipart($data, $boundary)
721 ExitWiki("No boundary?");
723 $boundary = preg_quote($boundary);
725 while (preg_match("/^(|.*?\n)--$boundary((?:--)?)[^\n]*\n/s",
728 $data = substr($data, strlen($match[0]));
729 if ( ! isset($parts) )
730 $parts = array(); // First time through: discard leading chaff
732 if ($content = ParseMimeifiedPages($match[1]))
733 for (reset($content); $p = current($content); next($content))
738 return $parts; // End boundary found.
740 ExitWiki("No end boundary?");
743 function GenerateFootnotesFromRefs($params)
745 $footnotes = array();
747 while (list($p, $reference) = each($params)) {
748 if (preg_match('/^ref([1-9][0-9]*)$/', $p, $m))
749 $footnotes[$m[1]] = sprintf(_("[%d] See [%s]"),
750 $m[1], rawurldecode($reference));
753 if (sizeof($footnotes) > 0) {
756 . "!" ._("References") . "\n"
757 . join("\n%%%\n", $footnotes) . "\n";
762 // counterpart to $acl->asAclLines() and rawurl undecode
763 // default: "view:_EVERY; edit:_AUTHENTICATED; create:_AUTHENTICATED,_BOGOUSER; ".
764 // "list:_EVERY; remove:_ADMIN,_OWNER; change:_ADMIN,_OWNER; dump:_EVERY; "
765 function ParseMimeifiedPerm($string) {
766 if (!class_exists('PagePermission')) {
770 foreach (split(";",trim($string)) as $accessgroup) {
771 list($access,$groupstring) = split(":",trim($accessgroup));
772 $access = trim($access);
773 $groups = split(",",trim($groupstring));
774 foreach ($groups as $group) {
775 $group = trim($group);
776 $bool = (boolean) (substr($group,0,1) != '-');
777 if (substr($group,0,1) == '-' or substr($group,0,1) == '+')
778 $group = substr($group,1);
779 $hash[$access][$group] = $bool;
782 $perm = new PagePermission($hash);
784 return serialize($perm->perm);
787 // Convert references in meta-data to footnotes.
788 // Only zip archives generated by phpwiki 1.2.x or earlier should have
790 function ParseMimeifiedPages ($data)
792 if (!($headers = ParseRFC822Headers($data))
793 || empty($headers['content-type'])) {
794 //trigger_error( sprintf(_("Can't find %s"),'content-type header'),
798 $typeheader = $headers['content-type'];
800 if (!(list ($type, $subtype, $params) = ParseMimeContentType($typeheader))) {
801 trigger_error( sprintf("Can't parse %s: (%s)",
802 'content-type', $typeheader),
806 if ("$type/$subtype" == 'multipart/mixed') {
807 return ParseMimeMultipart($data, $params['boundary']);
809 else if ("$type/$subtype" != 'application/x-phpwiki') {
810 trigger_error( sprintf("Bad %s","content-type: $type/$subtype"),
815 // FIXME: more sanity checking?
818 $versiondata = array();
819 if (isset($headers['date']))
820 $pagedata['date'] = strtotime($headers['date']);
822 //DONE: support owner and acl
823 foreach ($params as $key => $value) {
826 $value = rawurldecode($value);
830 $page[$key] = $value;
833 if (preg_match('/PAGE_LOCKED/', $value))
834 $pagedata['locked'] = 'yes';
835 if (ENABLE_EXTERNAL_PAGES && preg_match('/EXTERNAL_PAGE/', $value))
836 $pagedata['external'] = 'yes';
841 $pagedata[$key] = $value;
845 if (class_exists('PagePermission')) {
846 $pagedata['perm'] = ParseMimeifiedPerm($value);
850 $versiondata['mtime'] = $value;
857 $versiondata[$key] = $value;
862 // FIXME: do we need to try harder to find a pagename if we
863 // haven't got one yet?
864 if (!isset($versiondata['author'])) {
866 if (is_object($request)) {
867 $user = $request->getUser();
868 $versiondata['author'] = $user->getId(); //FIXME:?
872 $encoding = strtolower($headers['content-transfer-encoding']);
873 if ($encoding == 'quoted-printable')
874 $data = QuotedPrintableDecode($data);
875 else if ($encoding && $encoding != 'binary')
876 ExitWiki( sprintf("Unknown %s", 'encoding type: $encoding') );
878 if (empty($params['charset']))
879 $params['charset'] = 'utf-8';
881 // compare to target charset
882 if (strtolower($params['charset']) != strtolower($GLOBALS['charset'])) {
883 $data = charset_convert($params['charset'], $GLOBALS['charset'], $data);
884 //$page['pagename'] = charset_convert($params['charset'], $GLOBALS['charset'], $page['pagename']);
885 if (isset($versiondata['summary']))
886 $versiondata['summary'] = charset_convert($params['charset'], $GLOBALS['charset'], $versiondata['summary']);
890 $data .= GenerateFootnotesFromRefs($params);
892 $page['content'] = preg_replace('/[ \t\r]*\n/', "\n", chop($data));
893 $page['pagedata'] = $pagedata;
894 $page['versiondata'] = $versiondata;
903 // c-hanging-comment-ender-p: nil
904 // indent-tabs-mode: nil