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()
18 @unlink($gzip_tmpfile);
21 function gzip_tempnam()
26 //FIXME: does this work on non-unix machines?
27 if (is_writable("/tmp"))
28 $gzip_tmpfile = tempnam("/tmp", "wkzip");
30 $gzip_tmpfile = tempnam(TEMP_DIR, "wkzip");
31 register_shutdown_function("gzip_cleanup");
36 function gzip_compress($data)
38 $filename = gzip_tempnam();
39 if (!($fp = gzopen($filename, "wb")))
40 trigger_error(sprintf("%s failed", 'gzopen'), E_USER_ERROR);
41 gzwrite($fp, $data, strlen($data));
43 trigger_error(sprintf("%s failed", 'gzclose'), E_USER_ERROR);
46 if (!($fp = fopen($filename, "rb"))) {
47 trigger_error(sprintf("%s failed", 'fopen'), E_USER_ERROR);
50 $z .= fread($fp, 1024);
53 trigger_error(sprintf("%s failed", 'fclose'), E_USER_ERROR);
58 function gzip_uncompress($data)
60 $filename = gzip_tempnam();
61 if (!($fp = fopen($filename, "wb")))
62 trigger_error(sprintf("%s failed", 'fopen'), E_USER_ERROR);
63 fwrite($fp, $data, strlen($data));
65 trigger_error(sprintf("%s failed", 'fclose'), E_USER_ERROR);
67 if (!($fp = gzopen($filename, "rb")))
68 trigger_error(sprintf("%s failed", 'gzopen'), E_USER_ERROR);
70 while ($buf = gzread($fp, 4096))
73 trigger_error(sprintf("%s failed", 'gzclose'), E_USER_ERROR);
80 * CRC32 computation. Hacked from Info-zip's zip-2.3 source code.
83 function zip_crc32($str, $crc = 0)
85 static $zip_crc_table;
87 if (empty($zip_crc_table)) {
88 /* NOTE: The range of PHP ints seems to be -0x80000000 to 0x7fffffff.
89 * So, had to munge these constants.
92 = array(0x00000000, 0x77073096, -0x11f19ed4, -0x66f6ae46, 0x076dc419,
93 0x706af48f, -0x169c5acb, -0x619b6a5d, 0x0edb8832, 0x79dcb8a4,
94 -0x1f2a16e2, -0x682d2678, 0x09b64c2b, 0x7eb17cbd, -0x1847d2f9,
95 -0x6f40e26f, 0x1db71064, 0x6ab020f2, -0x0c468eb8, -0x7b41be22,
96 0x1adad47d, 0x6ddde4eb, -0x0b2b4aaf, -0x7c2c7a39, 0x136c9856,
97 0x646ba8c0, -0x029d0686, -0x759a3614, 0x14015c4f, 0x63066cd9,
98 -0x05f0c29d, -0x72f7f20b, 0x3b6e20c8, 0x4c69105e, -0x2a9fbe1c,
99 -0x5d988e8e, 0x3c03e4d1, 0x4b04d447, -0x2df27a03, -0x5af54a95,
100 0x35b5a8fa, 0x42b2986c, -0x2444362a, -0x534306c0, 0x32d86ce3,
101 0x45df5c75, -0x2329f231, -0x542ec2a7, 0x26d930ac, 0x51de003a,
102 -0x3728ae80, -0x402f9eea, 0x21b4f4b5, 0x56b3c423, -0x30456a67,
103 -0x47425af1, 0x2802b89e, 0x5f058808, -0x39f3264e, -0x4ef416dc,
104 0x2f6f7c87, 0x58684c11, -0x3e9ee255, -0x4999d2c3, 0x76dc4190,
105 0x01db7106, -0x672ddf44, -0x102aefd6, 0x71b18589, 0x06b6b51f,
106 -0x60401b5b, -0x17472bcd, 0x7807c9a2, 0x0f00f934, -0x69f65772,
107 -0x1ef167e8, 0x7f6a0dbb, 0x086d3d2d, -0x6e9b9369, -0x199ca3ff,
108 0x6b6b51f4, 0x1c6c6162, -0x7a9acf28, -0x0d9dffb2, 0x6c0695ed,
109 0x1b01a57b, -0x7df70b3f, -0x0af03ba9, 0x65b0d9c6, 0x12b7e950,
110 -0x74414716, -0x03467784, 0x62dd1ddf, 0x15da2d49, -0x732c830d,
111 -0x042bb39b, 0x4db26158, 0x3ab551ce, -0x5c43ff8c, -0x2b44cf1e,
112 0x4adfa541, 0x3dd895d7, -0x5b2e3b93, -0x2c290b05, 0x4369e96a,
113 0x346ed9fc, -0x529877ba, -0x259f4730, 0x44042d73, 0x33031de5,
114 -0x55f5b3a1, -0x22f28337, 0x5005713c, 0x270241aa, -0x41f4eff0,
115 -0x36f3df7a, 0x5768b525, 0x206f85b3, -0x46992bf7, -0x319e1b61,
116 0x5edef90e, 0x29d9c998, -0x4f2f67de, -0x3828574c, 0x59b33d17,
117 0x2eb40d81, -0x4842a3c5, -0x3f459353, -0x12477ce0, -0x65404c4a,
118 0x03b6e20c, 0x74b1d29a, -0x152ab8c7, -0x622d8851, 0x04db2615,
119 0x73dc1683, -0x1c9cf4ee, -0x6b9bc47c, 0x0d6d6a3e, 0x7a6a5aa8,
120 -0x1bf130f5, -0x6cf60063, 0x0a00ae27, 0x7d079eb1, -0x0ff06cbc,
121 -0x78f75c2e, 0x1e01f268, 0x6906c2fe, -0x089da8a3, -0x7f9a9835,
122 0x196c3671, 0x6e6b06e7, -0x012be48a, -0x762cd420, 0x10da7a5a,
123 0x67dd4acc, -0x06462091, -0x71411007, 0x17b7be43, 0x60b08ed5,
124 -0x29295c18, -0x5e2e6c82, 0x38d8c2c4, 0x4fdff252, -0x2e44980f,
125 -0x5943a899, 0x3fb506dd, 0x48b2364b, -0x27f2d426, -0x50f5e4b4,
126 0x36034af6, 0x41047a60, -0x209f103d, -0x579820ab, 0x316e8eef,
127 0x4669be79, -0x349e4c74, -0x43997ce6, 0x256fd2a0, 0x5268e236,
128 -0x33f3886b, -0x44f4b8fd, 0x220216b9, 0x5505262f, -0x3a45c442,
129 -0x4d42f4d8, 0x2bb45a92, 0x5cb36a04, -0x3d280059, -0x4a2f30cf,
130 0x2cd99e8b, 0x5bdeae1d, -0x649b3d50, -0x139c0dda, 0x756aa39c,
131 0x026d930a, -0x63f6f957, -0x14f1c9c1, 0x72076785, 0x05005713,
132 -0x6a40b57e, -0x1d4785ec, 0x7bb12bae, 0x0cb61b38, -0x6d2d7165,
133 -0x1a2a41f3, 0x7cdcefb7, 0x0bdbdf21, -0x792c2d2c, -0x0e2b1dbe,
134 0x68ddb3f8, 0x1fda836e, -0x7e41e933, -0x0946d9a5, 0x6fb077e1,
135 0x18b74777, -0x77f7a51a, -0x00f09590, 0x66063bca, 0x11010b5c,
136 -0x709a6101, -0x079d5197, 0x616bffd3, 0x166ccf45, -0x5ff51d88,
137 -0x28f22d12, 0x4e048354, 0x3903b3c2, -0x5898d99f, -0x2f9fe909,
138 0x4969474d, 0x3e6e77db, -0x512e95b6, -0x2629a524, 0x40df0b66,
139 0x37d83bf0, -0x564351ad, -0x2144613b, 0x47b2cf7f, 0x30b5ffe9,
140 -0x42420de4, -0x35453d76, 0x53b39330, 0x24b4a3a6, -0x452fc9fb,
141 -0x3228f96d, 0x54de5729, 0x23d967bf, -0x4c9985d2, -0x3b9eb548,
142 0x5d681b02, 0x2a6f2b94, -0x4bf441c9, -0x3cf3715f, 0x5a05df1b,
147 for ($i = 0; $i < strlen($str); $i++) {
148 $crc = ($zip_crc_table[($crc ^ ord($str[$i])) & 0xff]
149 ^ (($crc >> 8) & 0xffffff));
154 define('GZIP_MAGIC', "\037\213");
155 define('GZIP_DEFLATE', 010);
157 function zip_deflate($content)
159 // Compress content, and suck information from gzip header.
160 if (function_exists('gzencode'))
161 $z = gzencode($content);
163 $z = gzip_compress($content);
165 // Suck OS type byte from gzip header. FIXME: this smells bad.
167 extract(unpack("a2magic/Ccomp_type/Cflags/@9/Cos_type", $z));
169 if ($magic != GZIP_MAGIC)
170 trigger_error(sprintf("Bad %s", "gzip magic"), E_USER_ERROR);
171 if ($comp_type != GZIP_DEFLATE)
172 trigger_error(sprintf("Bad %s", "gzip comp type"), E_USER_ERROR);
173 if (($flags & 0x3e) != 0)
174 trigger_error(sprintf("Bad %s", sprintf("flags (0x%02x)", $flags)),
178 $gz_data_len = strlen($z) - $gz_header_len - 8;
179 if ($gz_data_len < 0)
180 trigger_error("not enough gzip output?", E_USER_ERROR);
182 extract(unpack("Vcrc32", substr($z, $gz_header_len + $gz_data_len)));
184 return array(substr($z, $gz_header_len, $gz_data_len), // gzipped data
190 function zip_inflate($data, $crc32, $uncomp_size)
192 if (function_exists('gzinflate')) {
193 $data = gzinflate($data);
194 if (strlen($data) != $uncomp_size)
195 trigger_error("not enough output from gzinflate", E_USER_ERROR);
196 $zcrc32 = zip_crc32($data);
197 if ($zcrc32 < 0) { // force unsigned
198 $zcrc32 += 4294967296;
200 if ($crc32 < 0) { // force unsigned
201 $crc32 += 4294967296;
203 if ($zcrc32 != $crc32)
204 trigger_error("CRC32 mismatch: calculated=$zcrc32, expected=$crc32", E_USER_ERROR);
208 if (!function_exists('gzopen')) {
210 $request->finish(_("Can't inflate data: zlib support not enabled in this PHP"));
213 // Reconstruct gzip header and ungzip the data.
214 $mtime = time(); //(Bogus mtime)
216 return gzip_uncompress(pack("a2CxV@10", GZIP_MAGIC, GZIP_DEFLATE, $mtime)
218 . pack("VV", $crc32, $uncomp_size));
221 function unixtime2dostime($unix_time)
224 $unix_time++; // Round up to even seconds.
226 list ($year, $month, $mday, $hour, $min, $sec)
227 = explode(" ", date("Y n j G i s", $unix_time));
230 list ($year, $month, $mday, $hour, $min, $sec) = array(1980, 1, 1, 0, 0, 0);
232 $dosdate = (($year - 1980) << 9) | ($month << 5) | $mday;
233 $dostime = ($hour << 11) | ($min << 5) | ($sec >> 1);
235 return array($dosdate, $dostime);
238 function dostime2unixtime($dosdate, $dostime)
240 $mday = $dosdate & 0x1f;
241 $month = ($dosdate >> 5) & 0x0f;
242 $year = 1980 + (($dosdate >> 9) & 0x7f);
244 $sec = ($dostime & 0x1f) * 2;
245 $min = ($dostime >> 5) & 0x3f;
246 $hour = ($dostime >> 11) & 0x1f;
248 return mktime($hour, $min, $sec, $month, $mday, $year);
252 * Class for zipfile creation.
254 define('ZIP_DEFLATE', GZIP_DEFLATE);
255 define('ZIP_STORE', 0);
256 define('ZIP_CENTHEAD_MAGIC', "PK\001\002");
257 define('ZIP_LOCHEAD_MAGIC', "PK\003\004");
258 define('ZIP_ENDDIR_MAGIC', "PK\005\006");
262 function ZipWriter($comment = "", $zipname = "archive.zip")
264 $this->comment = $comment;
266 $this->dir = ""; // "Central directory block"
267 $this->offset = 0; // Current file position.
269 $zipname = addslashes($zipname);
270 header("Content-Type: application/zip; name=\"$zipname\"");
271 header("Content-Disposition: attachment; filename=\"$zipname\"");
274 function addSrcFile($target, $src, $attrib = false)
276 if (empty($attrib['mtime']))
277 $attrib = array('mtime' => filemtime($src), 'is_ascii' => 0);
278 $this->addRegularFile($target, file_get_contents($src), $attrib);
281 function addRegularFile($filename, $content, $attrib = false)
286 $size = strlen($content);
287 if (function_exists('gzopen')) {
288 list ($data, $crc32, $os_type) = zip_deflate($content);
289 if (strlen($data) < $size) {
290 $content = $data; // Use compressed data.
291 $comp_type = ZIP_DEFLATE;
293 unset($crc32); // force plain store.
296 $os_type = 3; // 0 = FAT --- hopefully this is good enough.
297 /* (Another choice might be 3 = Unix) */
300 if (!isset($crc32)) {
301 $comp_type = ZIP_STORE;
302 $crc32 = zip_crc32($content);
305 if (!empty($attrib['write_protected']))
306 $atx = (0100444 << 16) | 1; // S_IFREG + read permissions to
309 $atx = (0100644 << 16); // Add owner write perms.
311 $ati = $attrib['is_ascii'] ? 1 : 0;
313 if (empty($attrib['mtime']))
314 $attrib['mtime'] = time();
315 list ($mod_date, $mod_time) = unixtime2dostime($attrib['mtime']);
317 // Construct parts common to "Local file header" and "Central
318 // directory file header."
319 if (!isset($attrib['extra_field']))
320 $attrib['extra_field'] = '';
321 if (!isset($attrib['file_comment']))
322 $attrib['file_comment'] = '';
324 $head = pack("vvvvvVVVvv",
325 20, // Version needed to extract (FIXME: is this right?)
326 0, // Gen purp bit flag
334 strlen($attrib['extra_field']));
336 // Construct the "Local file header"
337 $lheader = ZIP_LOCHEAD_MAGIC . $head . $filename
338 . $attrib['extra_field'];
340 // Construct the "central directory file header"
341 $this->dir .= pack("a4CC",
343 23, // Version made by (FIXME: is this right?)
346 $this->dir .= pack("vvvVV",
347 strlen($attrib['file_comment']),
348 0, // Disk number start
349 $ati, // Internal file attributes
350 $atx, // External file attributes
351 $this->offset); // Relative offset of local header
352 $this->dir .= $filename . $attrib['extra_field']
353 . $attrib['file_comment'];
355 // Output the "Local file header" and file contents.
359 $this->offset += strlen($lheader) + strlen($content);
365 // Output the central directory
368 // Construct the "End of central directory record"
369 echo ZIP_ENDDIR_MAGIC;
371 0, // Number of this disk.
372 0, // Number of disk with start of c dir
373 $this->nfiles, // Number entries on this disk
374 $this->nfiles, // Number entries
375 strlen($this->dir), // Size of central directory
376 $this->offset, // Offset of central directory
377 strlen($this->comment));
383 * Class for reading zip files. Handles buffers also.
387 * Many of the ExitWiki()'s should probably be warn()'s (eg. CRC mismatch).
389 * Only a subset of zip formats is recognized. (I think that
390 * unsupported formats will be recognized as such rather than silently
393 * We don't read the central directory. This means we don't see the
394 * file attributes (text? read-only?), or file comments.
396 * Right now we ignore the file mod date and time, since we don't need it.
400 function ZipReader($zipfile)
402 if (!is_string($zipfile)) { // filepointer: File already open
403 $this->fp = $zipfile;
405 } elseif (((ord($zipfile[0]) * 256 + ord($zipfile[1])) % 31 == 0) // buffer
406 and (substr($zipfile, 0, 2) == "\037\213")
407 or (substr($zipfile, 0, 2) == "x\332")
410 $this->buf = $zipfile;
414 $this->zipfile = $zipfile;
415 if (!($this->fp = fopen($zipfile, "rb"))) {
416 trigger_error(sprintf(_("Can't open zip file “%s” for reading"),
417 $zipfile), E_USER_ERROR);
422 function _read($nbytes)
425 $chunk = fread($this->fp, $nbytes);
426 if (strlen($chunk) != $nbytes)
427 trigger_error(_("Unexpected EOF in zip file"), E_USER_ERROR);
429 } elseif ($this->buf) {
430 if (strlen($this->buf) < $nbytes)
431 trigger_error(_("Unexpected EOF in zip file"), E_USER_ERROR);
432 $chunk = substr($this->buf, 0, $nbytes);
433 $this->buf = substr($this->buf, $nbytes);
449 $head = $this->_read(30); // FIXME: This is bad for gzip compressed buffers
451 extract(unpack("a4magic/vreq_version/vflags/vcomp_type"
452 . "/vmod_time/vmod_date"
453 . "/Vcrc32/Vcomp_size/Vuncomp_size"
454 . "/vfilename_len/vextrafld_len",
457 if ($magic != ZIP_LOCHEAD_MAGIC) {
459 //$x = substr($magic,0,3);
460 if (substr($magic, 0, 3) == "\037\213\225") //and (substr($magic,3,1) & 0x3e) == 0)
464 $this->fp = fopen($this->zipfile, "rb");
465 $content = $this->_read(filesize($this->fp));
467 $content = $this->buf;
470 $data = zip_deflate($content);
471 return array($filename, $data, $attrib);
473 if ($magic != ZIP_CENTHEAD_MAGIC)
474 // FIXME: better message?
475 ExitWiki(sprintf("Unsupported ZIP header type: %s", $magic));
476 return $this->done();
478 if (($flags & 0x21) != 0)
479 ExitWiki("Encryption and/or zip patches not supported.");
480 if (($flags & 0x08) != 0)
481 // FIXME: better message?
482 ExitWiki("Postponed CRC not yet supported.");
484 $filename = $this->_read($filename_len);
485 //FIXME: we should probably check $req_version.
486 $attrib['mtime'] = dostime2unixtime($mod_date, $mod_time);
487 if ($extrafld_len != 0)
488 $attrib['extra_field'] = $this->_read($extrafld_len);
490 $data = $this->_read($comp_size);
492 if ($comp_type == ZIP_DEFLATE) {
493 $data = zip_inflate($data, $crc32, $uncomp_size);
494 } elseif ($comp_type == ZIP_STORE) {
495 $crc = zip_crc32($data);
497 ExitWiki(sprintf("CRC mismatch %x != %x", $crc, $crc32));
499 ExitWiki(sprintf("Compression method %s unsupported",
502 if (strlen($data) != $uncomp_size)
503 ExitWiki(sprintf("Uncompressed size mismatch %d != %d",
504 strlen($data), $uncomp_size));
506 return array($filename, $data, $attrib);
511 * Routines for Mime mailification of pages.
513 //FIXME: these should go elsewhere (libmime?).
516 * Routines for quoted-printable en/decoding.
518 function QuotedPrintableEncode($string)
520 // Quote special characters in line.
523 // The complicated regexp is to force quoting of trailing spaces.
524 preg_match('/^([ !-<>-~]*)(?:([!-<>-~]$)|(.))/s', $string, $match);
525 $quoted .= $match[1] . $match[2];
526 if (!empty($match[3]))
527 $quoted .= sprintf("=%02X", ord($match[3]));
528 $string = substr($string, strlen($match[0]));
531 // This splits the line (preferably after white-space) into lines
532 // which are no longer than 76 chars (after adding trailing '=' for
533 // soft line break, but before adding \r\n.)
534 return preg_replace('/(?=.{77})(.{10,74}[ \t]|.{71,73}[^=][^=])/s',
535 "\\1=\r\n", $quoted);
538 function QuotedPrintableDecode($string)
540 // Eliminate soft line-breaks.
541 $string = preg_replace('/=[ \t\r]*\n/', '', $string);
542 return quoted_printable_decode($string);
545 define('MIME_TOKEN_REGEXP', "[-!#-'*+.0-9A-Z^-~]+");
547 function MimeContentTypeHeader($type, $subtype, $params)
549 $header = "Content-Type: $type/$subtype";
551 while (list($key, $val) = each($params)) {
552 //FIXME: what about non-ascii printables in $val?
553 if (!preg_match('/^' . MIME_TOKEN_REGEXP . '$/', $val))
554 $val = '"' . addslashes($val) . '"';
555 $header .= ";\r\n $key=$val";
557 return "$header\r\n";
560 function MimeMultipart($parts)
562 global $mime_multipart_count;
564 // The string "=_" can not occur in quoted-printable encoded data.
565 $boundary = "=_multipart_boundary_" . ++$mime_multipart_count;
567 $head = MimeContentTypeHeader('multipart', 'mixed',
568 array('boundary' => $boundary));
570 $sep = "\r\n--$boundary\r\n";
572 return $head . $sep . implode($sep, $parts) . "\r\n--${boundary}--\r\n";
577 * http://www.nacs.uci.edu/indiv/ehood/MIME/2045/rfc2045.html
578 * http://www.faqs.org/rfcs/rfc2045.html
579 * (RFC 1521 has been superceeded by RFC 2045 & others).
581 * Also see http://www.faqs.org/rfcs/rfc2822.html
584 * Notes on content-transfer-encoding.
586 * "7bit" means short lines of US-ASCII.
587 * "8bit" means short lines of octets with (possibly) the high-order bit set.
588 * "binary" means lines are not necessarily short enough for SMTP
589 * transport, and non-ASCII characters may be present.
591 * Only "7bit", "quoted-printable", and "base64" are universally safe
592 * for transport via e-mail. (Though many MTAs can/will be configured to
593 * automatically convert encodings to a safe type if they receive
594 * mail encoded in '8bit' and/or 'binary' encodings.
596 function MimeifyPageRevision(&$page, &$revision)
598 // $wikidb =& $revision->_wikidb;
599 // $page = $wikidb->getPage($revision->getName());
600 // FIXME: add 'hits' to $params
601 $params = array('pagename' => $page->getName(),
603 'author' => $revision->get('author'),
604 'owner' => $page->getOwner(),
605 'version' => $revision->getVersion(),
606 'lastmodified' => $revision->get('mtime'));
608 if ($page->get('mtime'))
609 $params['created'] = $page->get('mtime');
610 if ($page->get('locked'))
611 $params['flags'] = 'PAGE_LOCKED';
612 if (ENABLE_EXTERNAL_PAGES && $page->get('external'))
613 $params['flags'] = ($params['flags'] ? $params['flags'] . ',EXTERNAL_PAGE' : 'EXTERNAL_PAGE');
614 if ($revision->get('author_id'))
615 $params['author_id'] = $revision->get('author_id');
616 if ($revision->get('markup')) // what is the default? we must use 1
617 $params['markup'] = $revision->get('markup');
618 if ($revision->get('summary'))
619 $params['summary'] = $revision->get('summary');
620 if ($page->get('hits'))
621 $params['hits'] = $page->get('hits');
622 if ($page->get('owner'))
623 $params['owner'] = $page->get('owner');
624 if ($page->get('perm') and class_exists('PagePermission')) {
625 $acl = getPagePermissions($page);
626 $params['acl'] = $acl->asAclLines();
627 //TODO: convert to multiple lines? acl-view => groups,...; acl-edit => groups,...
630 // Non-US-ASCII is not allowed in Mime headers (at least not without
631 // special handling) --- so we urlencode all parameter values.
632 foreach ($params as $key => $val)
633 $params[$key] = rawurlencode($val);
634 if (isset($params['acl']))
635 // default: "view:_EVERY; edit:_AUTHENTICATED; create:_AUTHENTICATED,_BOGOUSER; ".
636 // "list:_EVERY; remove:_ADMIN,_OWNER; change:_ADMIN,_OWNER; dump:_EVERY; "
637 $params['acl'] = str_replace(array("%3A", "%3B%20", "%2C"), array(":", "; ", ","), $params['acl']);
639 $out = MimeContentTypeHeader('application', 'x-phpwiki', $params);
640 $out .= sprintf("Content-Transfer-Encoding: %s\r\n",
641 STRICT_MAILABLE_PAGEDUMPS ? 'quoted-printable' : 'binary');
645 foreach ($revision->getContent() as $line) {
646 // This is a dirty hack to allow saving binary text files. See above.
647 $line = rtrim($line);
648 if (STRICT_MAILABLE_PAGEDUMPS)
649 $line = QuotedPrintableEncode(rtrim($line));
656 * Routines for parsing Mime-ified phpwiki pages.
658 function ParseRFC822Headers(&$string)
660 if (preg_match("/^From (.*)\r?\n/", $string, $match)) {
661 $headers['from '] = preg_replace('/^\s+|\s+$/', '', $match[1]);
662 $string = substr($string, strlen($match[0]));
665 while (preg_match('/^([!-9;-~]+) [ \t]* : [ \t]* '
666 . '( .* \r?\n (?: [ \t] .* \r?\n)* )/x',
668 $headers[strtolower($match[1])]
669 = preg_replace('/^\s+|\s+$/', '', $match[2]);
670 $string = substr($string, strlen($match[0]));
676 if (strlen($string) > 0) {
677 if (!preg_match("/^\r?\n/", $string, $match)) {
678 // No blank line after headers.
681 $string = substr($string, strlen($match[0]));
687 function ParseMimeContentType($string)
689 // FIXME: Remove (RFC822 style comments).
692 if (!preg_match(':^\s*(' . MIME_TOKEN_REGEXP . ')\s*'
694 . '\s*(' . MIME_TOKEN_REGEXP . ')\s*:x',
697 ExitWiki(sprintf("Bad %s", 'MIME content-type'));
699 $type = strtolower($match[1]);
700 $subtype = strtolower($match[2]);
701 $string = substr($string, strlen($match[0]));
704 while (preg_match('/^;\s*(' . MIME_TOKEN_REGEXP . ')\s*=\s*'
705 . '(?:(' . MIME_TOKEN_REGEXP . ')|"((?:[^"\\\\]|\\.)*)") \s*/sx',
707 //" <--kludge for brain-dead syntax coloring
708 if (strlen($match[2]))
711 $val = preg_replace('/[\\\\](.)/s', '\\1', $match[3]);
713 $param[strtolower($match[1])] = $val;
715 $string = substr($string, strlen($match[0]));
718 return array($type, $subtype, $param);
721 function ParseMimeMultipart($data, $boundary)
724 ExitWiki("No boundary?");
726 $boundary = preg_quote($boundary);
728 while (preg_match("/^(|.*?\n)--$boundary((?:--)?)[^\n]*\n/s",
730 $data = substr($data, strlen($match[0]));
732 $parts = array(); // First time through: discard leading chaff
734 if ($content = ParseMimeifiedPages($match[1]))
735 for (reset($content); $p = current($content); next($content))
740 return $parts; // End boundary found.
742 ExitWiki("No end boundary?");
745 function GenerateFootnotesFromRefs($params)
747 $footnotes = array();
749 while (list($p, $reference) = each($params)) {
750 if (preg_match('/^ref([1-9][0-9]*)$/', $p, $m))
751 $footnotes[$m[1]] = sprintf(_("[%d] See [%s]"),
752 $m[1], rawurldecode($reference));
755 if (sizeof($footnotes) > 0) {
758 . "!" . _("References") . "\n"
759 . join("\n%%%\n", $footnotes) . "\n";
764 // counterpart to $acl->asAclLines() and rawurl undecode
765 // default: "view:_EVERY; edit:_AUTHENTICATED; create:_AUTHENTICATED,_BOGOUSER; ".
766 // "list:_EVERY; remove:_ADMIN,_OWNER; change:_ADMIN,_OWNER; dump:_EVERY; "
767 function ParseMimeifiedPerm($string)
769 if (!class_exists('PagePermission')) {
773 foreach (explode(";", trim($string)) as $accessgroup) {
774 list($access, $groupstring) = explode(":", trim($accessgroup));
775 $access = trim($access);
776 $groups = explode(",", trim($groupstring));
777 foreach ($groups as $group) {
778 $group = trim($group);
779 $bool = (boolean)(substr($group, 0, 1) != '-');
780 if (substr($group, 0, 1) == '-' or substr($group, 0, 1) == '+')
781 $group = substr($group, 1);
782 $hash[$access][$group] = $bool;
785 $perm = new PagePermission($hash);
787 return serialize($perm->perm);
790 // Convert references in meta-data to footnotes.
791 // Only zip archives generated by phpwiki 1.2.x or earlier should have
793 function ParseMimeifiedPages($data)
795 if (!($headers = ParseRFC822Headers($data))
796 || empty($headers['content-type'])
798 //trigger_error( sprintf(_("Can't find %s"),'content-type header'),
802 $typeheader = $headers['content-type'];
804 if (!(list ($type, $subtype, $params) = ParseMimeContentType($typeheader))) {
805 trigger_error(sprintf("Can't parse %s: (%s)",
806 'content-type', $typeheader),
810 if ("$type/$subtype" == 'multipart/mixed') {
811 return ParseMimeMultipart($data, $params['boundary']);
812 } elseif ("$type/$subtype" != 'application/x-phpwiki') {
813 trigger_error(sprintf("Bad %s", "content-type: $type/$subtype"),
818 // FIXME: more sanity checking?
821 $versiondata = array();
822 if (isset($headers['date']))
823 $pagedata['date'] = strtotime($headers['date']);
825 //DONE: support owner and acl
826 foreach ($params as $key => $value) {
829 $value = rawurldecode($value);
833 $page[$key] = $value;
836 if (preg_match('/PAGE_LOCKED/', $value))
837 $pagedata['locked'] = 'yes';
838 if (ENABLE_EXTERNAL_PAGES && preg_match('/EXTERNAL_PAGE/', $value))
839 $pagedata['external'] = 'yes';
844 $pagedata[$key] = $value;
848 if (class_exists('PagePermission')) {
849 $pagedata['perm'] = ParseMimeifiedPerm($value);
853 $versiondata['mtime'] = $value;
860 $versiondata[$key] = $value;
865 // FIXME: do we need to try harder to find a pagename if we
866 // haven't got one yet?
867 if (!isset($versiondata['author'])) {
869 if (is_object($request)) {
870 $user = $request->getUser();
871 $versiondata['author'] = $user->getId(); //FIXME:?
875 $encoding = strtolower($headers['content-transfer-encoding']);
876 if ($encoding == 'quoted-printable')
877 $data = QuotedPrintableDecode($data);
878 else if ($encoding && $encoding != 'binary')
879 ExitWiki(sprintf("Unknown %s", 'encoding type: $encoding'));
881 $data .= GenerateFootnotesFromRefs($params);
883 $page['content'] = preg_replace('/[ \t\r]*\n/', "\n", chop($data));
884 $page['pagedata'] = $pagedata;
885 $page['versiondata'] = $versiondata;
894 // c-hanging-comment-ender-p: nil
895 // indent-tabs-mode: nil