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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: http-support.c 7952 2008-09-17 00:56:20Z mike $" |
ef416fc2 | 3 | * |
71e16022 | 4 | * HTTP support routines for CUPS. |
ef416fc2 | 5 | * |
71e16022 | 6 | * Copyright 2007-2010 by Apple Inc. |
b86bc4cf | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
19 | * httpAssembleURI() - Assemble a uniform resource identifier from its | |
20 | * components. | |
21 | * httpAssembleURIf() - Assemble a uniform resource identifier from its | |
22 | * components with a formatted resource. | |
23 | * httpDecode64() - Base64-decode a string. | |
24 | * httpDecode64_2() - Base64-decode a string. | |
25 | * httpEncode64() - Base64-encode a string. | |
26 | * httpEncode64_2() - Base64-encode a string. | |
27 | * httpGetDateString() - Get a formatted date/time string from a time value. | |
28 | * httpGetDateString2() - Get a formatted date/time string from a time value. | |
29 | * httpGetDateTime() - Get a time value from a formatted date/time string. | |
30 | * httpSeparate() - Separate a Universal Resource Identifier into its | |
31 | * components. | |
32 | * httpSeparate2() - Separate a Universal Resource Identifier into its | |
33 | * components. | |
34 | * httpSeparateURI() - Separate a Universal Resource Identifier into its | |
35 | * components. | |
36 | * httpStatus() - Return a short string describing a HTTP status code. | |
37 | * _cups_hstrerror() - hstrerror() emulation function for Solaris and | |
38 | * others... | |
839a51c8 | 39 | * _httpEncodeURI() - Percent-encode a HTTP request URI. |
5eb9da71 | 40 | * _httpResolveURI() - Resolve a DNS-SD URI. |
ef416fc2 | 41 | * http_copy_decode() - Copy and decode a URI. |
42 | * http_copy_encode() - Copy and encode a URI. | |
5eb9da71 | 43 | * resolve_callback() - Build a device URI for the given service name. |
ef416fc2 | 44 | */ |
45 | ||
46 | /* | |
47 | * Include necessary headers... | |
48 | */ | |
49 | ||
71e16022 | 50 | #include "cups-private.h" |
5eb9da71 MS |
51 | #ifdef HAVE_DNSSD |
52 | # include <dns_sd.h> | |
6d2f911b MS |
53 | # ifdef WIN32 |
54 | # include <io.h> | |
55 | # elif defined(HAVE_POLL) | |
56 | # include <poll.h> | |
57 | # else | |
58 | # include <sys/select.h> | |
59 | # endif /* WIN32 */ | |
5eb9da71 MS |
60 | #endif /* HAVE_DNSSD */ |
61 | ||
62 | ||
63 | /* | |
64 | * Local types... | |
65 | */ | |
66 | ||
67 | typedef struct _http_uribuf_s /* URI buffer */ | |
68 | { | |
69 | char *buffer; /* Pointer to buffer */ | |
70 | size_t bufsize; /* Size of buffer */ | |
71 | } _http_uribuf_t; | |
ef416fc2 | 72 | |
73 | ||
74 | /* | |
75 | * Local globals... | |
76 | */ | |
77 | ||
78 | static const char * const http_days[7] = | |
79 | { | |
0a682745 MS |
80 | "Sun", |
81 | "Mon", | |
ef416fc2 | 82 | "Tue", |
83 | "Wed", | |
84 | "Thu", | |
85 | "Fri", | |
86 | "Sat" | |
87 | }; | |
88 | static const char * const http_months[12] = | |
89 | { | |
90 | "Jan", | |
91 | "Feb", | |
92 | "Mar", | |
93 | "Apr", | |
94 | "May", | |
95 | "Jun", | |
96 | "Jul", | |
97 | "Aug", | |
98 | "Sep", | |
99 | "Oct", | |
100 | "Nov", | |
101 | "Dec" | |
102 | }; | |
103 | ||
104 | ||
105 | /* | |
106 | * Local functions... | |
107 | */ | |
108 | ||
109 | static const char *http_copy_decode(char *dst, const char *src, | |
a4d04587 | 110 | int dstsize, const char *term, |
111 | int decode); | |
ef416fc2 | 112 | static char *http_copy_encode(char *dst, const char *src, |
a4d04587 | 113 | char *dstend, const char *reserved, |
114 | const char *term, int encode); | |
5eb9da71 | 115 | #ifdef HAVE_DNSSD |
6d2f911b | 116 | static void DNSSD_API resolve_callback(DNSServiceRef sdRef, |
5eb9da71 MS |
117 | DNSServiceFlags flags, |
118 | uint32_t interfaceIndex, | |
119 | DNSServiceErrorType errorCode, | |
120 | const char *fullName, | |
121 | const char *hostTarget, | |
122 | uint16_t port, uint16_t txtLen, | |
123 | const unsigned char *txtRecord, | |
124 | void *context); | |
125 | #endif /* HAVE_DNSSD */ | |
ef416fc2 | 126 | |
127 | ||
128 | /* | |
129 | * 'httpAssembleURI()' - Assemble a uniform resource identifier from its | |
130 | * components. | |
131 | * | |
ecdc0628 | 132 | * This function escapes reserved characters in the URI depending on the |
133 | * value of the "encoding" argument. You should use this function in | |
134 | * place of traditional string functions whenever you need to create a | |
135 | * URI string. | |
ef416fc2 | 136 | * |
426c6a59 | 137 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 138 | */ |
139 | ||
140 | http_uri_status_t /* O - URI status */ | |
a4d04587 | 141 | httpAssembleURI( |
142 | http_uri_coding_t encoding, /* I - Encoding flags */ | |
143 | char *uri, /* I - URI buffer */ | |
144 | int urilen, /* I - Size of URI buffer */ | |
145 | const char *scheme, /* I - Scheme name */ | |
146 | const char *username, /* I - Username */ | |
147 | const char *host, /* I - Hostname or address */ | |
148 | int port, /* I - Port number */ | |
149 | const char *resource) /* I - Resource */ | |
ef416fc2 | 150 | { |
151 | char *ptr, /* Pointer into URI buffer */ | |
152 | *end; /* End of URI buffer */ | |
ef416fc2 | 153 | |
154 | ||
155 | /* | |
156 | * Range check input... | |
157 | */ | |
158 | ||
159 | if (!uri || urilen < 1 || !scheme || port < 0) | |
160 | { | |
161 | if (uri) | |
162 | *uri = '\0'; | |
163 | ||
164 | return (HTTP_URI_BAD_ARGUMENTS); | |
165 | } | |
166 | ||
167 | /* | |
168 | * Assemble the URI starting with the scheme... | |
169 | */ | |
170 | ||
171 | end = uri + urilen - 1; | |
a4d04587 | 172 | ptr = http_copy_encode(uri, scheme, end, NULL, NULL, 0); |
ef416fc2 | 173 | |
174 | if (!ptr) | |
175 | goto assemble_overflow; | |
176 | ||
f7deaa1a | 177 | if (!strcmp(scheme, "mailto")) |
ef416fc2 | 178 | { |
179 | /* | |
180 | * mailto: only has :, no //... | |
181 | */ | |
182 | ||
183 | if (ptr < end) | |
184 | *ptr++ = ':'; | |
185 | else | |
186 | goto assemble_overflow; | |
187 | } | |
188 | else | |
189 | { | |
190 | /* | |
191 | * Schemes other than mailto: all have //... | |
192 | */ | |
193 | ||
194 | if ((ptr + 2) < end) | |
195 | { | |
196 | *ptr++ = ':'; | |
197 | *ptr++ = '/'; | |
198 | *ptr++ = '/'; | |
199 | } | |
200 | else | |
201 | goto assemble_overflow; | |
202 | } | |
203 | ||
204 | /* | |
205 | * Next the username and hostname, if any... | |
206 | */ | |
207 | ||
208 | if (host) | |
209 | { | |
210 | if (username && *username) | |
211 | { | |
212 | /* | |
213 | * Add username@ first... | |
214 | */ | |
215 | ||
a4d04587 | 216 | ptr = http_copy_encode(ptr, username, end, "/?@", NULL, |
217 | encoding & HTTP_URI_CODING_USERNAME); | |
ef416fc2 | 218 | |
219 | if (!ptr) | |
220 | goto assemble_overflow; | |
221 | ||
222 | if (ptr < end) | |
223 | *ptr++ = '@'; | |
224 | else | |
225 | goto assemble_overflow; | |
226 | } | |
227 | ||
228 | /* | |
229 | * Then add the hostname. Since IPv6 is a particular pain to deal | |
c9fc04c6 | 230 | * with, we have several special cases to deal with. If we get |
ef416fc2 | 231 | * an IPv6 address with brackets around it, assume it is already in |
c9fc04c6 MS |
232 | * URI format. Since DNS-SD service names can sometimes look like |
233 | * raw IPv6 addresses, we specifically look for "._tcp" in the name, | |
234 | * too... | |
ef416fc2 | 235 | */ |
236 | ||
c9fc04c6 | 237 | if (host[0] != '[' && strchr(host, ':') && !strstr(host, "._tcp")) |
ef416fc2 | 238 | { |
239 | /* | |
c9fc04c6 | 240 | * We have a raw IPv6 address... |
ef416fc2 | 241 | */ |
242 | ||
243 | if (strchr(host, '%')) | |
244 | { | |
245 | /* | |
246 | * We have a link-local address, add "[v1." prefix... | |
247 | */ | |
248 | ||
249 | if ((ptr + 4) < end) | |
250 | { | |
251 | *ptr++ = '['; | |
252 | *ptr++ = 'v'; | |
253 | *ptr++ = '1'; | |
254 | *ptr++ = '.'; | |
255 | } | |
256 | else | |
257 | goto assemble_overflow; | |
258 | } | |
259 | else | |
260 | { | |
261 | /* | |
262 | * We have a normal address, add "[" prefix... | |
263 | */ | |
264 | ||
265 | if (ptr < end) | |
266 | *ptr++ = '['; | |
267 | else | |
268 | goto assemble_overflow; | |
269 | } | |
270 | ||
271 | /* | |
272 | * Copy the rest of the IPv6 address, and terminate with "]". | |
273 | */ | |
274 | ||
275 | while (ptr < end && *host) | |
276 | { | |
277 | if (*host == '%') | |
278 | { | |
279 | *ptr++ = '+'; /* Convert zone separator */ | |
280 | host ++; | |
281 | } | |
282 | else | |
283 | *ptr++ = *host++; | |
284 | } | |
285 | ||
286 | if (*host) | |
287 | goto assemble_overflow; | |
288 | ||
289 | if (ptr < end) | |
290 | *ptr++ = ']'; | |
291 | else | |
292 | goto assemble_overflow; | |
293 | } | |
294 | else | |
295 | { | |
296 | /* | |
297 | * Otherwise, just copy the host string... | |
298 | */ | |
299 | ||
7cf5915e | 300 | ptr = http_copy_encode(ptr, host, end, ":/?#[]@\\\"", NULL, |
a4d04587 | 301 | encoding & HTTP_URI_CODING_HOSTNAME); |
ef416fc2 | 302 | |
303 | if (!ptr) | |
304 | goto assemble_overflow; | |
305 | } | |
306 | ||
307 | /* | |
308 | * Finish things off with the port number... | |
309 | */ | |
310 | ||
311 | if (port > 0) | |
312 | { | |
313 | snprintf(ptr, end - ptr + 1, ":%d", port); | |
314 | ptr += strlen(ptr); | |
315 | ||
316 | if (ptr >= end) | |
317 | goto assemble_overflow; | |
318 | } | |
319 | } | |
320 | ||
321 | /* | |
322 | * Last but not least, add the resource string... | |
323 | */ | |
324 | ||
a4d04587 | 325 | if (resource) |
ef416fc2 | 326 | { |
fa73b229 | 327 | char *query; /* Pointer to query string */ |
328 | ||
329 | ||
fa73b229 | 330 | /* |
a4d04587 | 331 | * Copy the resource string up to the query string if present... |
fa73b229 | 332 | */ |
333 | ||
a4d04587 | 334 | query = strchr(resource, '?'); |
335 | ptr = http_copy_encode(ptr, resource, end, NULL, "?", | |
336 | encoding & HTTP_URI_CODING_RESOURCE); | |
ef416fc2 | 337 | if (!ptr) |
338 | goto assemble_overflow; | |
fa73b229 | 339 | |
340 | if (query) | |
341 | { | |
342 | /* | |
343 | * Copy query string without encoding... | |
344 | */ | |
345 | ||
a4d04587 | 346 | ptr = http_copy_encode(ptr, query, end, NULL, NULL, |
347 | encoding & HTTP_URI_CODING_QUERY); | |
348 | if (!ptr) | |
349 | goto assemble_overflow; | |
fa73b229 | 350 | } |
ef416fc2 | 351 | } |
352 | else if (ptr < end) | |
353 | *ptr++ = '/'; | |
354 | else | |
355 | goto assemble_overflow; | |
356 | ||
357 | /* | |
358 | * Nul-terminate the URI buffer and return with no errors... | |
359 | */ | |
360 | ||
361 | *ptr = '\0'; | |
362 | ||
363 | return (HTTP_URI_OK); | |
364 | ||
365 | /* | |
366 | * Clear the URI string and return an overflow error; I don't usually | |
367 | * like goto's, but in this case it makes sense... | |
368 | */ | |
369 | ||
370 | assemble_overflow: | |
371 | ||
372 | *uri = '\0'; | |
373 | return (HTTP_URI_OVERFLOW); | |
374 | } | |
375 | ||
376 | ||
a4d04587 | 377 | /* |
378 | * 'httpAssembleURIf()' - Assemble a uniform resource identifier from its | |
379 | * components with a formatted resource. | |
380 | * | |
381 | * This function creates a formatted version of the resource string | |
ecdc0628 | 382 | * argument "resourcef" and escapes reserved characters in the URI |
383 | * depending on the value of the "encoding" argument. You should use | |
384 | * this function in place of traditional string functions whenever | |
385 | * you need to create a URI string. | |
a4d04587 | 386 | * |
426c6a59 | 387 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 388 | */ |
389 | ||
390 | http_uri_status_t /* O - URI status */ | |
391 | httpAssembleURIf( | |
392 | http_uri_coding_t encoding, /* I - Encoding flags */ | |
393 | char *uri, /* I - URI buffer */ | |
394 | int urilen, /* I - Size of URI buffer */ | |
395 | const char *scheme, /* I - Scheme name */ | |
396 | const char *username, /* I - Username */ | |
397 | const char *host, /* I - Hostname or address */ | |
398 | int port, /* I - Port number */ | |
399 | const char *resourcef, /* I - Printf-style resource */ | |
400 | ...) /* I - Additional arguments as needed */ | |
401 | { | |
402 | va_list ap; /* Pointer to additional arguments */ | |
403 | char resource[1024]; /* Formatted resource string */ | |
404 | int bytes; /* Bytes in formatted string */ | |
405 | ||
406 | ||
407 | /* | |
408 | * Range check input... | |
409 | */ | |
410 | ||
411 | if (!uri || urilen < 1 || !scheme || port < 0 || !resourcef) | |
412 | { | |
413 | if (uri) | |
414 | *uri = '\0'; | |
415 | ||
416 | return (HTTP_URI_BAD_ARGUMENTS); | |
417 | } | |
418 | ||
419 | /* | |
420 | * Format the resource string and assemble the URI... | |
421 | */ | |
422 | ||
423 | va_start(ap, resourcef); | |
424 | bytes = vsnprintf(resource, sizeof(resource), resourcef, ap); | |
425 | va_end(ap); | |
426 | ||
427 | if (bytes >= sizeof(resource)) | |
428 | { | |
429 | *uri = '\0'; | |
430 | return (HTTP_URI_OVERFLOW); | |
431 | } | |
432 | else | |
433 | return (httpAssembleURI(encoding, uri, urilen, scheme, username, host, | |
434 | port, resource)); | |
435 | } | |
436 | ||
437 | ||
ef416fc2 | 438 | /* |
439 | * 'httpDecode64()' - Base64-decode a string. | |
ecdc0628 | 440 | * |
441 | * This function is deprecated. Use the httpDecode64_2() function instead | |
442 | * which provides buffer length arguments. | |
443 | * | |
444 | * @deprecated@ | |
ef416fc2 | 445 | */ |
446 | ||
447 | char * /* O - Decoded string */ | |
448 | httpDecode64(char *out, /* I - String to write to */ | |
449 | const char *in) /* I - String to read from */ | |
450 | { | |
451 | int outlen; /* Output buffer length */ | |
452 | ||
453 | ||
454 | /* | |
455 | * Use the old maximum buffer size for binary compatibility... | |
456 | */ | |
457 | ||
458 | outlen = 512; | |
459 | ||
460 | return (httpDecode64_2(out, &outlen, in)); | |
461 | } | |
462 | ||
463 | ||
464 | /* | |
465 | * 'httpDecode64_2()' - Base64-decode a string. | |
466 | * | |
426c6a59 | 467 | * @since CUPS 1.1.21/Mac OS X 10.4@ |
ef416fc2 | 468 | */ |
469 | ||
470 | char * /* O - Decoded string */ | |
471 | httpDecode64_2(char *out, /* I - String to write to */ | |
472 | int *outlen, /* IO - Size of output string */ | |
473 | const char *in) /* I - String to read from */ | |
474 | { | |
475 | int pos, /* Bit position */ | |
476 | base64; /* Value of this character */ | |
477 | char *outptr, /* Output pointer */ | |
478 | *outend; /* End of output buffer */ | |
479 | ||
480 | ||
481 | /* | |
482 | * Range check input... | |
483 | */ | |
484 | ||
fa73b229 | 485 | if (!out || !outlen || *outlen < 1 || !in) |
ef416fc2 | 486 | return (NULL); |
487 | ||
fa73b229 | 488 | if (!*in) |
489 | { | |
490 | *out = '\0'; | |
491 | *outlen = 0; | |
492 | ||
493 | return (out); | |
494 | } | |
495 | ||
ef416fc2 | 496 | /* |
497 | * Convert from base-64 to bytes... | |
498 | */ | |
499 | ||
500 | for (outptr = out, outend = out + *outlen - 1, pos = 0; *in != '\0'; in ++) | |
501 | { | |
502 | /* | |
503 | * Decode this character into a number from 0 to 63... | |
504 | */ | |
505 | ||
506 | if (*in >= 'A' && *in <= 'Z') | |
507 | base64 = *in - 'A'; | |
508 | else if (*in >= 'a' && *in <= 'z') | |
509 | base64 = *in - 'a' + 26; | |
510 | else if (*in >= '0' && *in <= '9') | |
511 | base64 = *in - '0' + 52; | |
512 | else if (*in == '+') | |
513 | base64 = 62; | |
514 | else if (*in == '/') | |
515 | base64 = 63; | |
516 | else if (*in == '=') | |
517 | break; | |
518 | else | |
519 | continue; | |
520 | ||
521 | /* | |
522 | * Store the result in the appropriate chars... | |
523 | */ | |
524 | ||
525 | switch (pos) | |
526 | { | |
527 | case 0 : | |
528 | if (outptr < outend) | |
529 | *outptr = base64 << 2; | |
530 | pos ++; | |
531 | break; | |
532 | case 1 : | |
533 | if (outptr < outend) | |
534 | *outptr++ |= (base64 >> 4) & 3; | |
535 | if (outptr < outend) | |
536 | *outptr = (base64 << 4) & 255; | |
537 | pos ++; | |
538 | break; | |
539 | case 2 : | |
540 | if (outptr < outend) | |
541 | *outptr++ |= (base64 >> 2) & 15; | |
542 | if (outptr < outend) | |
543 | *outptr = (base64 << 6) & 255; | |
544 | pos ++; | |
545 | break; | |
546 | case 3 : | |
547 | if (outptr < outend) | |
548 | *outptr++ |= base64; | |
549 | pos = 0; | |
550 | break; | |
551 | } | |
552 | } | |
553 | ||
554 | *outptr = '\0'; | |
555 | ||
556 | /* | |
557 | * Return the decoded string and size... | |
558 | */ | |
559 | ||
560 | *outlen = (int)(outptr - out); | |
561 | ||
562 | return (out); | |
563 | } | |
564 | ||
565 | ||
566 | /* | |
567 | * 'httpEncode64()' - Base64-encode a string. | |
ecdc0628 | 568 | * |
569 | * This function is deprecated. Use the httpEncode64_2() function instead | |
570 | * which provides buffer length arguments. | |
571 | * | |
572 | * @deprecated@ | |
ef416fc2 | 573 | */ |
574 | ||
575 | char * /* O - Encoded string */ | |
576 | httpEncode64(char *out, /* I - String to write to */ | |
577 | const char *in) /* I - String to read from */ | |
578 | { | |
b86bc4cf | 579 | return (httpEncode64_2(out, 512, in, (int)strlen(in))); |
ef416fc2 | 580 | } |
581 | ||
582 | ||
583 | /* | |
584 | * 'httpEncode64_2()' - Base64-encode a string. | |
585 | * | |
426c6a59 | 586 | * @since CUPS 1.1.21/Mac OS X 10.4@ |
ef416fc2 | 587 | */ |
588 | ||
589 | char * /* O - Encoded string */ | |
590 | httpEncode64_2(char *out, /* I - String to write to */ | |
591 | int outlen, /* I - Size of output string */ | |
592 | const char *in, /* I - String to read from */ | |
593 | int inlen) /* I - Size of input string */ | |
594 | { | |
595 | char *outptr, /* Output pointer */ | |
596 | *outend; /* End of output buffer */ | |
597 | static const char base64[] = /* Base64 characters... */ | |
598 | { | |
599 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
600 | "abcdefghijklmnopqrstuvwxyz" | |
601 | "0123456789" | |
602 | "+/" | |
603 | }; | |
604 | ||
605 | ||
606 | /* | |
607 | * Range check input... | |
608 | */ | |
609 | ||
610 | if (!out || outlen < 1 || !in) | |
611 | return (NULL); | |
612 | ||
613 | /* | |
614 | * Convert bytes to base-64... | |
615 | */ | |
616 | ||
617 | for (outptr = out, outend = out + outlen - 1; inlen > 0; in ++, inlen --) | |
618 | { | |
619 | /* | |
620 | * Encode the up to 3 characters as 4 Base64 numbers... | |
621 | */ | |
622 | ||
623 | if (outptr < outend) | |
624 | *outptr ++ = base64[(in[0] & 255) >> 2]; | |
26d47ec6 | 625 | |
ef416fc2 | 626 | if (outptr < outend) |
26d47ec6 | 627 | { |
628 | if (inlen > 1) | |
629 | *outptr ++ = base64[(((in[0] & 255) << 4) | ((in[1] & 255) >> 4)) & 63]; | |
630 | else | |
631 | *outptr ++ = base64[((in[0] & 255) << 4) & 63]; | |
632 | } | |
ef416fc2 | 633 | |
634 | in ++; | |
635 | inlen --; | |
636 | if (inlen <= 0) | |
637 | { | |
638 | if (outptr < outend) | |
639 | *outptr ++ = '='; | |
640 | if (outptr < outend) | |
641 | *outptr ++ = '='; | |
642 | break; | |
643 | } | |
644 | ||
645 | if (outptr < outend) | |
26d47ec6 | 646 | { |
647 | if (inlen > 1) | |
648 | *outptr ++ = base64[(((in[0] & 255) << 2) | ((in[1] & 255) >> 6)) & 63]; | |
649 | else | |
650 | *outptr ++ = base64[((in[0] & 255) << 2) & 63]; | |
651 | } | |
ef416fc2 | 652 | |
653 | in ++; | |
654 | inlen --; | |
655 | if (inlen <= 0) | |
656 | { | |
657 | if (outptr < outend) | |
658 | *outptr ++ = '='; | |
659 | break; | |
660 | } | |
661 | ||
662 | if (outptr < outend) | |
663 | *outptr ++ = base64[in[0] & 63]; | |
664 | } | |
665 | ||
666 | *outptr = '\0'; | |
667 | ||
668 | /* | |
669 | * Return the encoded string... | |
670 | */ | |
671 | ||
672 | return (out); | |
673 | } | |
674 | ||
675 | ||
676 | /* | |
677 | * 'httpGetDateString()' - Get a formatted date/time string from a time value. | |
678 | * | |
679 | * @deprecated@ | |
680 | */ | |
681 | ||
682 | const char * /* O - Date/time string */ | |
683 | httpGetDateString(time_t t) /* I - UNIX time */ | |
684 | { | |
685 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
686 | ||
687 | ||
688 | return (httpGetDateString2(t, cg->http_date, sizeof(cg->http_date))); | |
689 | } | |
690 | ||
691 | ||
692 | /* | |
693 | * 'httpGetDateString2()' - Get a formatted date/time string from a time value. | |
694 | * | |
426c6a59 | 695 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 696 | */ |
697 | ||
698 | const char * /* O - Date/time string */ | |
699 | httpGetDateString2(time_t t, /* I - UNIX time */ | |
700 | char *s, /* I - String buffer */ | |
701 | int slen) /* I - Size of string buffer */ | |
702 | { | |
703 | struct tm *tdate; /* UNIX date/time data */ | |
704 | ||
705 | ||
706 | tdate = gmtime(&t); | |
707 | snprintf(s, slen, "%s, %02d %s %d %02d:%02d:%02d GMT", | |
708 | http_days[tdate->tm_wday], tdate->tm_mday, | |
709 | http_months[tdate->tm_mon], tdate->tm_year + 1900, | |
710 | tdate->tm_hour, tdate->tm_min, tdate->tm_sec); | |
711 | ||
712 | return (s); | |
713 | } | |
714 | ||
715 | ||
716 | /* | |
717 | * 'httpGetDateTime()' - Get a time value from a formatted date/time string. | |
718 | */ | |
719 | ||
720 | time_t /* O - UNIX time */ | |
721 | httpGetDateTime(const char *s) /* I - Date/time string */ | |
722 | { | |
723 | int i; /* Looping var */ | |
724 | char mon[16]; /* Abbreviated month name */ | |
725 | int day, year; /* Day of month and year */ | |
726 | int hour, min, sec; /* Time */ | |
727 | int days; /* Number of days since 1970 */ | |
728 | static const int normal_days[] = /* Days to a month, normal years */ | |
729 | { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }; | |
730 | static const int leap_days[] = /* Days to a month, leap years */ | |
731 | { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }; | |
732 | ||
733 | ||
e07d4801 | 734 | DEBUG_printf(("2httpGetDateTime(s=\"%s\")", s)); |
ef416fc2 | 735 | |
736 | /* | |
737 | * Extract the date and time from the formatted string... | |
738 | */ | |
739 | ||
740 | if (sscanf(s, "%*s%d%15s%d%d:%d:%d", &day, mon, &year, &hour, &min, &sec) < 6) | |
741 | return (0); | |
742 | ||
e07d4801 MS |
743 | DEBUG_printf(("4httpGetDateTime: day=%d, mon=\"%s\", year=%d, hour=%d, " |
744 | "min=%d, sec=%d", day, mon, year, hour, min, sec)); | |
ef416fc2 | 745 | |
746 | /* | |
747 | * Convert the month name to a number from 0 to 11. | |
748 | */ | |
749 | ||
750 | for (i = 0; i < 12; i ++) | |
751 | if (!strcasecmp(mon, http_months[i])) | |
752 | break; | |
753 | ||
754 | if (i >= 12) | |
755 | return (0); | |
756 | ||
e07d4801 | 757 | DEBUG_printf(("4httpGetDateTime: i=%d", i)); |
ef416fc2 | 758 | |
759 | /* | |
760 | * Now convert the date and time to a UNIX time value in seconds since | |
761 | * 1970. We can't use mktime() since the timezone may not be UTC but | |
762 | * the date/time string *is* UTC. | |
763 | */ | |
764 | ||
765 | if ((year & 3) == 0 && ((year % 100) != 0 || (year % 400) == 0)) | |
766 | days = leap_days[i] + day - 1; | |
767 | else | |
768 | days = normal_days[i] + day - 1; | |
769 | ||
e07d4801 | 770 | DEBUG_printf(("4httpGetDateTime: days=%d", days)); |
ef416fc2 | 771 | |
772 | days += (year - 1970) * 365 + /* 365 days per year (normally) */ | |
773 | ((year - 1) / 4 - 492) - /* + leap days */ | |
774 | ((year - 1) / 100 - 19) + /* - 100 year days */ | |
775 | ((year - 1) / 400 - 4); /* + 400 year days */ | |
776 | ||
e07d4801 | 777 | DEBUG_printf(("4httpGetDateTime: days=%d\n", days)); |
ef416fc2 | 778 | |
779 | return (days * 86400 + hour * 3600 + min * 60 + sec); | |
780 | } | |
781 | ||
782 | ||
783 | /* | |
784 | * 'httpSeparate()' - Separate a Universal Resource Identifier into its | |
785 | * components. | |
ecdc0628 | 786 | * |
787 | * This function is deprecated; use the httpSeparateURI() function instead. | |
788 | * | |
789 | * @deprecated@ | |
ef416fc2 | 790 | */ |
791 | ||
792 | void | |
793 | httpSeparate(const char *uri, /* I - Universal Resource Identifier */ | |
794 | char *scheme, /* O - Scheme [32] (http, https, etc.) */ | |
795 | char *username, /* O - Username [1024] */ | |
796 | char *host, /* O - Hostname [1024] */ | |
797 | int *port, /* O - Port number to use */ | |
798 | char *resource) /* O - Resource/filename [1024] */ | |
799 | { | |
a4d04587 | 800 | httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, 32, username, |
801 | HTTP_MAX_URI, host, HTTP_MAX_URI, port, resource, | |
802 | HTTP_MAX_URI); | |
ef416fc2 | 803 | } |
804 | ||
805 | ||
806 | /* | |
807 | * 'httpSeparate2()' - Separate a Universal Resource Identifier into its | |
808 | * components. | |
809 | * | |
ecdc0628 | 810 | * This function is deprecated; use the httpSeparateURI() function instead. |
811 | * | |
426c6a59 | 812 | * @since CUPS 1.1.21/Mac OS X 10.4@ |
ecdc0628 | 813 | * @deprecated@ |
ef416fc2 | 814 | */ |
815 | ||
816 | void | |
817 | httpSeparate2(const char *uri, /* I - Universal Resource Identifier */ | |
818 | char *scheme, /* O - Scheme (http, https, etc.) */ | |
819 | int schemelen, /* I - Size of scheme buffer */ | |
820 | char *username, /* O - Username */ | |
821 | int usernamelen, /* I - Size of username buffer */ | |
822 | char *host, /* O - Hostname */ | |
823 | int hostlen, /* I - Size of hostname buffer */ | |
824 | int *port, /* O - Port number to use */ | |
825 | char *resource, /* O - Resource/filename */ | |
826 | int resourcelen) /* I - Size of resource buffer */ | |
827 | { | |
a4d04587 | 828 | httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, schemelen, username, |
829 | usernamelen, host, hostlen, port, resource, resourcelen); | |
ef416fc2 | 830 | } |
831 | ||
832 | ||
833 | /* | |
834 | * 'httpSeparateURI()' - Separate a Universal Resource Identifier into its | |
835 | * components. | |
836 | * | |
426c6a59 | 837 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 838 | */ |
839 | ||
840 | http_uri_status_t /* O - Result of separation */ | |
a4d04587 | 841 | httpSeparateURI( |
842 | http_uri_coding_t decoding, /* I - Decoding flags */ | |
843 | const char *uri, /* I - Universal Resource Identifier */ | |
844 | char *scheme, /* O - Scheme (http, https, etc.) */ | |
845 | int schemelen, /* I - Size of scheme buffer */ | |
846 | char *username, /* O - Username */ | |
847 | int usernamelen, /* I - Size of username buffer */ | |
848 | char *host, /* O - Hostname */ | |
849 | int hostlen, /* I - Size of hostname buffer */ | |
850 | int *port, /* O - Port number to use */ | |
851 | char *resource, /* O - Resource/filename */ | |
852 | int resourcelen) /* I - Size of resource buffer */ | |
ef416fc2 | 853 | { |
854 | char *ptr, /* Pointer into string... */ | |
855 | *end; /* End of string */ | |
856 | const char *sep; /* Separator character */ | |
857 | http_uri_status_t status; /* Result of separation */ | |
858 | ||
859 | ||
860 | /* | |
861 | * Initialize everything to blank... | |
862 | */ | |
863 | ||
864 | if (scheme && schemelen > 0) | |
865 | *scheme = '\0'; | |
866 | ||
867 | if (username && usernamelen > 0) | |
868 | *username = '\0'; | |
869 | ||
870 | if (host && hostlen > 0) | |
871 | *host = '\0'; | |
872 | ||
873 | if (port) | |
874 | *port = 0; | |
875 | ||
876 | if (resource && resourcelen > 0) | |
877 | *resource = '\0'; | |
878 | ||
879 | /* | |
880 | * Range check input... | |
881 | */ | |
882 | ||
883 | if (!uri || !port || !scheme || schemelen <= 0 || !username || | |
884 | usernamelen <= 0 || !host || hostlen <= 0 || !resource || | |
885 | resourcelen <= 0) | |
886 | return (HTTP_URI_BAD_ARGUMENTS); | |
887 | ||
888 | if (!*uri) | |
889 | return (HTTP_URI_BAD_URI); | |
890 | ||
891 | /* | |
892 | * Grab the scheme portion of the URI... | |
893 | */ | |
894 | ||
895 | status = HTTP_URI_OK; | |
896 | ||
897 | if (!strncmp(uri, "//", 2)) | |
898 | { | |
899 | /* | |
900 | * Workaround for HP IPP client bug... | |
901 | */ | |
902 | ||
903 | strlcpy(scheme, "ipp", schemelen); | |
904 | status = HTTP_URI_MISSING_SCHEME; | |
905 | } | |
906 | else if (*uri == '/') | |
907 | { | |
908 | /* | |
909 | * Filename... | |
910 | */ | |
911 | ||
912 | strlcpy(scheme, "file", schemelen); | |
913 | status = HTTP_URI_MISSING_SCHEME; | |
914 | } | |
915 | else | |
916 | { | |
917 | /* | |
918 | * Standard URI with scheme... | |
919 | */ | |
920 | ||
921 | for (ptr = scheme, end = scheme + schemelen - 1; | |
922 | *uri && *uri != ':' && ptr < end;) | |
7cf5915e MS |
923 | if (strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
924 | "abcdefghijklmnopqrstuvwxyz" | |
925 | "0123456789-+.", *uri) != NULL) | |
ef416fc2 | 926 | *ptr++ = *uri++; |
927 | else | |
928 | break; | |
929 | ||
930 | *ptr = '\0'; | |
931 | ||
932 | if (*uri != ':') | |
933 | { | |
934 | *scheme = '\0'; | |
935 | return (HTTP_URI_BAD_SCHEME); | |
936 | } | |
937 | ||
938 | uri ++; | |
939 | } | |
940 | ||
941 | /* | |
942 | * Set the default port number... | |
943 | */ | |
944 | ||
945 | if (!strcmp(scheme, "http")) | |
946 | *port = 80; | |
947 | else if (!strcmp(scheme, "https")) | |
948 | *port = 443; | |
7cf5915e | 949 | else if (!strcmp(scheme, "ipp") || !strcmp(scheme, "ipps")) |
ef416fc2 | 950 | *port = 631; |
951 | else if (!strcasecmp(scheme, "lpd")) | |
952 | *port = 515; | |
953 | else if (!strcmp(scheme, "socket")) /* Not yet registered with IANA... */ | |
954 | *port = 9100; | |
955 | else if (strcmp(scheme, "file") && strcmp(scheme, "mailto")) | |
956 | status = HTTP_URI_UNKNOWN_SCHEME; | |
957 | ||
958 | /* | |
959 | * Now see if we have a hostname... | |
960 | */ | |
961 | ||
962 | if (!strncmp(uri, "//", 2)) | |
963 | { | |
964 | /* | |
965 | * Yes, extract it... | |
966 | */ | |
967 | ||
968 | uri += 2; | |
969 | ||
970 | /* | |
971 | * Grab the username, if any... | |
972 | */ | |
973 | ||
974 | if ((sep = strpbrk(uri, "@/")) != NULL && *sep == '@') | |
975 | { | |
976 | /* | |
977 | * Get a username:password combo... | |
978 | */ | |
979 | ||
a4d04587 | 980 | uri = http_copy_decode(username, uri, usernamelen, "@", |
981 | decoding & HTTP_URI_CODING_USERNAME); | |
ef416fc2 | 982 | |
983 | if (!uri) | |
984 | { | |
985 | *username = '\0'; | |
986 | return (HTTP_URI_BAD_USERNAME); | |
987 | } | |
988 | ||
989 | uri ++; | |
990 | } | |
991 | ||
992 | /* | |
993 | * Then the hostname/IP address... | |
994 | */ | |
995 | ||
996 | if (*uri == '[') | |
997 | { | |
998 | /* | |
999 | * Grab IPv6 address... | |
1000 | */ | |
1001 | ||
1002 | uri ++; | |
1003 | if (!strncmp(uri, "v1.", 3)) | |
1004 | uri += 3; /* Skip IPvN leader... */ | |
1005 | ||
a4d04587 | 1006 | uri = http_copy_decode(host, uri, hostlen, "]", |
1007 | decoding & HTTP_URI_CODING_HOSTNAME); | |
ef416fc2 | 1008 | |
1009 | if (!uri) | |
1010 | { | |
1011 | *host = '\0'; | |
1012 | return (HTTP_URI_BAD_HOSTNAME); | |
1013 | } | |
1014 | ||
1015 | /* | |
1016 | * Validate value... | |
1017 | */ | |
1018 | ||
1019 | if (*uri != ']') | |
1020 | { | |
1021 | *host = '\0'; | |
1022 | return (HTTP_URI_BAD_HOSTNAME); | |
1023 | } | |
1024 | ||
1025 | uri ++; | |
1026 | ||
1027 | for (ptr = host; *ptr; ptr ++) | |
1028 | if (*ptr == '+') | |
1029 | { | |
1030 | /* | |
1031 | * Convert zone separator to % and stop here... | |
1032 | */ | |
1033 | ||
1034 | *ptr = '%'; | |
1035 | break; | |
1036 | } | |
1037 | else if (*ptr != ':' && *ptr != '.' && !isxdigit(*ptr & 255)) | |
1038 | { | |
1039 | *host = '\0'; | |
1040 | return (HTTP_URI_BAD_HOSTNAME); | |
1041 | } | |
1042 | } | |
1043 | else | |
1044 | { | |
1045 | /* | |
b423cd4c | 1046 | * Validate the hostname or IPv4 address first... |
1047 | */ | |
1048 | ||
1049 | for (ptr = (char *)uri; *ptr; ptr ++) | |
1050 | if (strchr(":?/", *ptr)) | |
1051 | break; | |
1052 | else if (!strchr("abcdefghijklmnopqrstuvwxyz" | |
1053 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
1054 | "0123456789" | |
1055 | "-._~" | |
1056 | "%" | |
2fb76298 | 1057 | "!$&'()*+,;=\\", *ptr)) |
b423cd4c | 1058 | { |
1059 | *host = '\0'; | |
1060 | return (HTTP_URI_BAD_HOSTNAME); | |
1061 | } | |
1062 | ||
1063 | /* | |
1064 | * Then copy the hostname or IPv4 address to the buffer... | |
ef416fc2 | 1065 | */ |
1066 | ||
a4d04587 | 1067 | uri = http_copy_decode(host, uri, hostlen, ":?/", |
1068 | decoding & HTTP_URI_CODING_HOSTNAME); | |
ef416fc2 | 1069 | |
1070 | if (!uri) | |
1071 | { | |
1072 | *host = '\0'; | |
1073 | return (HTTP_URI_BAD_HOSTNAME); | |
1074 | } | |
ef416fc2 | 1075 | } |
1076 | ||
1077 | /* | |
1078 | * Validate hostname for file scheme - only empty and localhost are | |
1079 | * acceptable. | |
1080 | */ | |
1081 | ||
1082 | if (!strcmp(scheme, "file") && strcmp(host, "localhost") && host[0]) | |
1083 | { | |
1084 | *host = '\0'; | |
1085 | return (HTTP_URI_BAD_HOSTNAME); | |
1086 | } | |
1087 | ||
1088 | /* | |
1089 | * See if we have a port number... | |
1090 | */ | |
1091 | ||
1092 | if (*uri == ':') | |
1093 | { | |
1094 | /* | |
1095 | * Yes, collect the port number... | |
1096 | */ | |
1097 | ||
dfd5680b MS |
1098 | if (!isdigit(uri[1] & 255)) |
1099 | { | |
1100 | *port = 0; | |
1101 | return (HTTP_URI_BAD_PORT); | |
1102 | } | |
1103 | ||
ef416fc2 | 1104 | *port = strtol(uri + 1, (char **)&uri, 10); |
1105 | ||
d6ae789d | 1106 | if (*uri != '/' && *uri) |
ef416fc2 | 1107 | { |
1108 | *port = 0; | |
1109 | return (HTTP_URI_BAD_PORT); | |
1110 | } | |
1111 | } | |
1112 | } | |
1113 | ||
1114 | /* | |
1115 | * The remaining portion is the resource string... | |
1116 | */ | |
1117 | ||
1118 | if (*uri == '?' || !*uri) | |
1119 | { | |
1120 | /* | |
1121 | * Hostname but no path... | |
1122 | */ | |
1123 | ||
1124 | status = HTTP_URI_MISSING_RESOURCE; | |
1125 | *resource = '/'; | |
fa73b229 | 1126 | |
1127 | /* | |
a4d04587 | 1128 | * Copy any query string... |
fa73b229 | 1129 | */ |
1130 | ||
1131 | if (*uri == '?') | |
a4d04587 | 1132 | uri = http_copy_decode(resource + 1, uri, resourcelen - 1, NULL, |
1133 | decoding & HTTP_URI_CODING_QUERY); | |
fa73b229 | 1134 | else |
1135 | resource[1] = '\0'; | |
ef416fc2 | 1136 | } |
1137 | else | |
fa73b229 | 1138 | { |
a4d04587 | 1139 | uri = http_copy_decode(resource, uri, resourcelen, "?", |
1140 | decoding & HTTP_URI_CODING_RESOURCE); | |
fa73b229 | 1141 | |
1142 | if (uri && *uri == '?') | |
1143 | { | |
1144 | /* | |
a4d04587 | 1145 | * Concatenate any query string... |
fa73b229 | 1146 | */ |
1147 | ||
a4d04587 | 1148 | char *resptr = resource + strlen(resource); |
1149 | ||
b86bc4cf | 1150 | uri = http_copy_decode(resptr, uri, resourcelen - (int)(resptr - resource), |
a4d04587 | 1151 | NULL, decoding & HTTP_URI_CODING_QUERY); |
fa73b229 | 1152 | } |
1153 | } | |
ef416fc2 | 1154 | |
1155 | if (!uri) | |
1156 | { | |
1157 | *resource = '\0'; | |
1158 | return (HTTP_URI_BAD_RESOURCE); | |
1159 | } | |
1160 | ||
1161 | /* | |
1162 | * Return the URI separation status... | |
1163 | */ | |
1164 | ||
1165 | return (status); | |
1166 | } | |
1167 | ||
1168 | ||
1169 | /* | |
1170 | * 'httpStatus()' - Return a short string describing a HTTP status code. | |
9f5eb9be MS |
1171 | * |
1172 | * The returned string is localized to the current POSIX locale and is based | |
1173 | * on the status strings defined in RFC 2616. | |
ef416fc2 | 1174 | */ |
1175 | ||
9f5eb9be | 1176 | const char * /* O - Localized status string */ |
ef416fc2 | 1177 | httpStatus(http_status_t status) /* I - HTTP status code */ |
1178 | { | |
9f5eb9be MS |
1179 | const char *s; /* Status string */ |
1180 | _cups_globals_t *cg = _cupsGlobals(); /* Global data */ | |
1181 | ||
1182 | ||
1183 | if (!cg->lang_default) | |
1184 | cg->lang_default = cupsLangDefault(); | |
1185 | ||
ef416fc2 | 1186 | switch (status) |
1187 | { | |
1188 | case HTTP_CONTINUE : | |
9f5eb9be MS |
1189 | s = _("Continue"); |
1190 | break; | |
ef416fc2 | 1191 | case HTTP_SWITCHING_PROTOCOLS : |
9f5eb9be MS |
1192 | s = _("Switching Protocols"); |
1193 | break; | |
ef416fc2 | 1194 | case HTTP_OK : |
9f5eb9be MS |
1195 | s = _("OK"); |
1196 | break; | |
ef416fc2 | 1197 | case HTTP_CREATED : |
9f5eb9be MS |
1198 | s = _("Created"); |
1199 | break; | |
ef416fc2 | 1200 | case HTTP_ACCEPTED : |
9f5eb9be MS |
1201 | s = _("Accepted"); |
1202 | break; | |
ef416fc2 | 1203 | case HTTP_NO_CONTENT : |
9f5eb9be MS |
1204 | s = _("No Content"); |
1205 | break; | |
d6ae789d | 1206 | case HTTP_MOVED_PERMANENTLY : |
9f5eb9be MS |
1207 | s = _("Moved Permanently"); |
1208 | break; | |
d6ae789d | 1209 | case HTTP_SEE_OTHER : |
9f5eb9be MS |
1210 | s = _("See Other"); |
1211 | break; | |
ef416fc2 | 1212 | case HTTP_NOT_MODIFIED : |
9f5eb9be MS |
1213 | s = _("Not Modified"); |
1214 | break; | |
ef416fc2 | 1215 | case HTTP_BAD_REQUEST : |
9f5eb9be MS |
1216 | s = _("Bad Request"); |
1217 | break; | |
ef416fc2 | 1218 | case HTTP_UNAUTHORIZED : |
f11a948a | 1219 | case HTTP_AUTHORIZATION_CANCELED : |
9f5eb9be MS |
1220 | s = _("Unauthorized"); |
1221 | break; | |
ef416fc2 | 1222 | case HTTP_FORBIDDEN : |
9f5eb9be MS |
1223 | s = _("Forbidden"); |
1224 | break; | |
ef416fc2 | 1225 | case HTTP_NOT_FOUND : |
9f5eb9be MS |
1226 | s = _("Not Found"); |
1227 | break; | |
ef416fc2 | 1228 | case HTTP_REQUEST_TOO_LARGE : |
9f5eb9be MS |
1229 | s = _("Request Entity Too Large"); |
1230 | break; | |
ef416fc2 | 1231 | case HTTP_URI_TOO_LONG : |
9f5eb9be MS |
1232 | s = _("URI Too Long"); |
1233 | break; | |
ef416fc2 | 1234 | case HTTP_UPGRADE_REQUIRED : |
9f5eb9be MS |
1235 | s = _("Upgrade Required"); |
1236 | break; | |
ef416fc2 | 1237 | case HTTP_NOT_IMPLEMENTED : |
9f5eb9be MS |
1238 | s = _("Not Implemented"); |
1239 | break; | |
ef416fc2 | 1240 | case HTTP_NOT_SUPPORTED : |
9f5eb9be MS |
1241 | s = _("Not Supported"); |
1242 | break; | |
b423cd4c | 1243 | case HTTP_EXPECTATION_FAILED : |
9f5eb9be MS |
1244 | s = _("Expectation Failed"); |
1245 | break; | |
1246 | case HTTP_SERVICE_UNAVAILABLE : | |
1247 | s = _("Service Unavailable"); | |
1248 | break; | |
94da7e34 MS |
1249 | case HTTP_SERVER_ERROR : |
1250 | s = _("Internal Server Error"); | |
1251 | break; | |
7cf5915e MS |
1252 | case HTTP_PKI_ERROR : |
1253 | s = _("SSL/TLS Negotiation Error"); | |
1254 | break; | |
b423cd4c | 1255 | |
ef416fc2 | 1256 | default : |
9f5eb9be MS |
1257 | s = _("Unknown"); |
1258 | break; | |
ef416fc2 | 1259 | } |
9f5eb9be MS |
1260 | |
1261 | return (_cupsLangString(cg->lang_default, s)); | |
ef416fc2 | 1262 | } |
1263 | ||
1264 | ||
1265 | #ifndef HAVE_HSTRERROR | |
1266 | /* | |
1267 | * '_cups_hstrerror()' - hstrerror() emulation function for Solaris and others... | |
1268 | */ | |
1269 | ||
1270 | const char * /* O - Error string */ | |
1271 | _cups_hstrerror(int error) /* I - Error number */ | |
1272 | { | |
1273 | static const char * const errors[] = /* Error strings */ | |
1274 | { | |
1275 | "OK", | |
1276 | "Host not found.", | |
1277 | "Try again.", | |
1278 | "Unrecoverable lookup error.", | |
1279 | "No data associated with name." | |
1280 | }; | |
1281 | ||
1282 | ||
1283 | if (error < 0 || error > 4) | |
1284 | return ("Unknown hostname lookup error."); | |
1285 | else | |
1286 | return (errors[error]); | |
1287 | } | |
1288 | #endif /* !HAVE_HSTRERROR */ | |
1289 | ||
1290 | ||
839a51c8 MS |
1291 | /* |
1292 | * '_httpEncodeURI()' - Percent-encode a HTTP request URI. | |
1293 | */ | |
1294 | ||
1295 | char * /* O - Encoded URI */ | |
1296 | _httpEncodeURI(char *dst, /* I - Destination buffer */ | |
1297 | const char *src, /* I - Source URI */ | |
1298 | size_t dstsize) /* I - Size of destination buffer */ | |
1299 | { | |
1300 | http_copy_encode(dst, src, dst + dstsize - 1, NULL, NULL, 1); | |
1301 | return (dst); | |
1302 | } | |
1303 | ||
1304 | ||
5eb9da71 MS |
1305 | /* |
1306 | * '_httpResolveURI()' - Resolve a DNS-SD URI. | |
1307 | */ | |
1308 | ||
1309 | const char * /* O - Resolved URI */ | |
1310 | _httpResolveURI( | |
1311 | const char *uri, /* I - DNS-SD URI */ | |
1312 | char *resolved_uri, /* I - Buffer for resolved URI */ | |
1f0275e3 | 1313 | size_t resolved_size, /* I - Size of URI buffer */ |
dfd5680b | 1314 | int logit) /* I - Log progress to stderr? */ |
5eb9da71 MS |
1315 | { |
1316 | char scheme[32], /* URI components... */ | |
1317 | userpass[256], | |
1318 | hostname[1024], | |
1319 | resource[1024]; | |
1320 | int port; | |
b19ccc9e | 1321 | #ifdef DEBUG |
1f0275e3 | 1322 | http_uri_status_t status; /* URI decode status */ |
b19ccc9e | 1323 | #endif /* DEBUG */ |
5eb9da71 MS |
1324 | |
1325 | ||
e07d4801 MS |
1326 | DEBUG_printf(("4_httpResolveURI(uri=\"%s\", resolved_uri=%p, " |
1327 | "resolved_size=" CUPS_LLFMT ")", uri, resolved_uri, | |
1f0275e3 MS |
1328 | CUPS_LLCAST resolved_size)); |
1329 | ||
5eb9da71 MS |
1330 | /* |
1331 | * Get the device URI... | |
1332 | */ | |
1333 | ||
b19ccc9e | 1334 | #ifdef DEBUG |
1f0275e3 MS |
1335 | if ((status = httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, |
1336 | sizeof(scheme), userpass, sizeof(userpass), | |
1337 | hostname, sizeof(hostname), &port, resource, | |
1338 | sizeof(resource))) < HTTP_URI_OK) | |
b19ccc9e MS |
1339 | #else |
1340 | if (httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, | |
1341 | sizeof(scheme), userpass, sizeof(userpass), | |
1342 | hostname, sizeof(hostname), &port, resource, | |
1343 | sizeof(resource)) < HTTP_URI_OK) | |
1344 | #endif /* DEBUG */ | |
1f0275e3 | 1345 | { |
dfd5680b | 1346 | if (logit) |
4d301e69 | 1347 | _cupsLangPrintf(stderr, _("Bad device URI \"%s\"\n"), uri); |
1f0275e3 | 1348 | |
e07d4801 MS |
1349 | DEBUG_printf(("6_httpResolveURI: httpSeparateURI returned %d!", status)); |
1350 | DEBUG_puts("5_httpResolveURI: Returning NULL"); | |
5eb9da71 | 1351 | return (NULL); |
1f0275e3 | 1352 | } |
5eb9da71 MS |
1353 | |
1354 | /* | |
1355 | * Resolve it as needed... | |
1356 | */ | |
1357 | ||
1358 | if (strstr(hostname, "._tcp")) | |
1359 | { | |
1360 | #ifdef HAVE_DNSSD | |
c7017ecc MS |
1361 | # ifdef WIN32 |
1362 | # pragma comment(lib, "dnssd.lib") | |
1363 | # endif /* WIN32 */ | |
38e73f87 MS |
1364 | DNSServiceRef ref, /* DNS-SD master service reference */ |
1365 | domainref, /* DNS-SD service reference for domain */ | |
1366 | localref; /* DNS-SD service reference for .local */ | |
6c48a6ca MS |
1367 | int domainsent = 0, /* Send the domain resolve? */ |
1368 | offline = 0; /* offline-report state set? */ | |
5eb9da71 MS |
1369 | char *regtype, /* Pointer to type in hostname */ |
1370 | *domain; /* Pointer to domain in hostname */ | |
1371 | _http_uribuf_t uribuf; /* URI buffer */ | |
6d2f911b | 1372 | #ifdef HAVE_POLL |
38e73f87 | 1373 | struct pollfd polldata; /* Polling data */ |
6d2f911b MS |
1374 | #else /* select() */ |
1375 | fd_set input_set; /* Input set for select() */ | |
1376 | struct timeval stimeout; /* Timeout value for select() */ | |
1377 | #endif /* HAVE_POLL */ | |
38e73f87 MS |
1378 | |
1379 | if (logit) | |
1380 | fprintf(stderr, "DEBUG: Resolving \"%s\"...\n", hostname); | |
5eb9da71 MS |
1381 | |
1382 | /* | |
1383 | * Separate the hostname into service name, registration type, and domain... | |
1384 | */ | |
1385 | ||
1f0275e3 MS |
1386 | for (regtype = strstr(hostname, "._tcp") - 2; |
1387 | regtype > hostname; | |
1388 | regtype --) | |
1389 | if (regtype[0] == '.' && regtype[1] == '_') | |
1390 | { | |
1391 | /* | |
1392 | * Found ._servicetype in front of ._tcp... | |
1393 | */ | |
1394 | ||
1395 | *regtype++ = '\0'; | |
1396 | break; | |
1397 | } | |
1398 | ||
1399 | if (regtype <= hostname) | |
1400 | { | |
e07d4801 | 1401 | DEBUG_puts("5_httpResolveURI: Bad hostname, returning NULL"); |
1f0275e3 MS |
1402 | return (NULL); |
1403 | } | |
5eb9da71 | 1404 | |
5eb9da71 MS |
1405 | for (domain = strchr(regtype, '.'); |
1406 | domain; | |
1407 | domain = strchr(domain + 1, '.')) | |
1408 | if (domain[1] != '_') | |
1409 | break; | |
1410 | ||
1411 | if (domain) | |
1412 | *domain++ = '\0'; | |
1413 | ||
1414 | uribuf.buffer = resolved_uri; | |
1415 | uribuf.bufsize = resolved_size; | |
1416 | ||
1417 | resolved_uri[0] = '\0'; | |
1418 | ||
e07d4801 | 1419 | DEBUG_printf(("6_httpResolveURI: Resolving hostname=\"%s\", regtype=\"%s\", " |
1f0275e3 | 1420 | "domain=\"%s\"\n", hostname, regtype, domain)); |
dfd5680b | 1421 | if (logit) |
1f0275e3 MS |
1422 | { |
1423 | fputs("STATE: +connecting-to-device\n", stderr); | |
38e73f87 MS |
1424 | fprintf(stderr, "DEBUG: Resolving \"%s\", regtype=\"%s\", " |
1425 | "domain=\"local.\"...\n", hostname, regtype); | |
1f0275e3 MS |
1426 | } |
1427 | ||
38e73f87 MS |
1428 | uri = NULL; |
1429 | ||
1430 | if (DNSServiceCreateConnection(&ref) == kDNSServiceErr_NoError) | |
5eb9da71 | 1431 | { |
38e73f87 MS |
1432 | localref = ref; |
1433 | if (DNSServiceResolve(&localref, kDNSServiceFlagsShareConnection, 0, | |
1434 | hostname, regtype, "local.", resolve_callback, | |
1435 | &uribuf) == kDNSServiceErr_NoError) | |
1436 | { | |
acb056cb MS |
1437 | int fds; /* Number of ready descriptors */ |
1438 | time_t timeout, /* Poll timeout */ | |
1439 | start_time = time(NULL);/* Start time */ | |
1440 | ||
1441 | for (;;) | |
38e73f87 | 1442 | { |
acb056cb MS |
1443 | if (logit) |
1444 | _cupsLangPuts(stderr, _("INFO: Looking for printer...\n")); | |
1445 | ||
38e73f87 | 1446 | /* |
acb056cb MS |
1447 | * For the first minute, wakeup every 2 seconds to emit a |
1448 | * "looking for printer" message... | |
38e73f87 MS |
1449 | */ |
1450 | ||
acb056cb MS |
1451 | timeout = (time(NULL) < (start_time + 60)) ? 2000 : -1; |
1452 | ||
6d2f911b | 1453 | #ifdef HAVE_POLL |
38e73f87 MS |
1454 | polldata.fd = DNSServiceRefSockFD(ref); |
1455 | polldata.events = POLLIN; | |
1456 | ||
acb056cb MS |
1457 | fds = poll(&polldata, 1, timeout); |
1458 | ||
6d2f911b MS |
1459 | #else /* select() */ |
1460 | FD_ZERO(&input_set); | |
1461 | FD_SET(DNSServiceRefSockFD(ref), &input_set); | |
1462 | ||
1463 | stimeout.tv_sec = ((int)timeout) / 1000; | |
1464 | stimeout.tv_usec = ((int)(timeout) * 1000) % 1000000; | |
1465 | ||
1466 | fds = select(DNSServiceRefSockFD(ref)+1, &input_set, NULL, NULL, | |
1467 | timeout < 0.0 ? NULL : &stimeout); | |
1468 | #endif /* HAVE_POLL */ | |
1469 | ||
acb056cb MS |
1470 | if (fds < 0) |
1471 | { | |
1472 | if (errno != EINTR && errno != EAGAIN) | |
1473 | { | |
1474 | DEBUG_printf(("5_httpResolveURI: poll error: %s", strerror(errno))); | |
1475 | break; | |
1476 | } | |
1477 | } | |
1478 | else if (fds == 0) | |
38e73f87 MS |
1479 | { |
1480 | /* | |
acb056cb MS |
1481 | * Wait 2 seconds for a response to the local resolve; if nothing |
1482 | * comes in, do an additional domain resolution... | |
38e73f87 MS |
1483 | */ |
1484 | ||
acb056cb MS |
1485 | if (domainsent == 0 && strcasecmp(domain, "local.")) |
1486 | { | |
1487 | if (logit) | |
1488 | fprintf(stderr, | |
1489 | "DEBUG: Resolving \"%s\", regtype=\"%s\", " | |
1490 | "domain=\"%s\"...\n", hostname, regtype, domain); | |
1491 | ||
1492 | domainref = ref; | |
1493 | if (DNSServiceResolve(&domainref, kDNSServiceFlagsShareConnection, 0, | |
1494 | hostname, regtype, domain, resolve_callback, | |
1495 | &uribuf) == kDNSServiceErr_NoError) | |
1496 | domainsent = 1; | |
1497 | } | |
6c48a6ca MS |
1498 | |
1499 | /* | |
1500 | * If it hasn't resolved within 5 seconds set the offline-report | |
1501 | * printer-state-reason... | |
1502 | */ | |
1503 | ||
1504 | if (logit && offline == 0 && time(NULL) > (start_time + 5)) | |
1505 | { | |
1506 | fputs("STATE: +offline-report\n", stderr); | |
1507 | offline = 1; | |
1508 | } | |
38e73f87 | 1509 | } |
acb056cb MS |
1510 | else |
1511 | { | |
1512 | if (DNSServiceProcessResult(ref) == kDNSServiceErr_NoError) | |
1513 | { | |
1514 | uri = resolved_uri; | |
1515 | break; | |
1516 | } | |
1517 | } | |
1518 | } | |
38e73f87 MS |
1519 | |
1520 | if (domainsent) | |
1521 | DNSServiceRefDeallocate(domainref); | |
1522 | ||
1523 | DNSServiceRefDeallocate(localref); | |
1524 | } | |
5eb9da71 MS |
1525 | |
1526 | DNSServiceRefDeallocate(ref); | |
1527 | } | |
1f0275e3 | 1528 | |
dfd5680b | 1529 | if (logit) |
38e73f87 MS |
1530 | { |
1531 | if (uri) | |
38e73f87 | 1532 | fprintf(stderr, "DEBUG: Resolved as \"%s\"...\n", uri); |
f11a948a | 1533 | else |
4d301e69 | 1534 | fputs("DEBUG: Unable to resolve URI\n", stderr); |
38e73f87 | 1535 | |
6c48a6ca | 1536 | fputs("STATE: -connecting-to-device,offline-report\n", stderr); |
38e73f87 | 1537 | } |
1f0275e3 MS |
1538 | |
1539 | #else | |
1540 | /* | |
1541 | * No DNS-SD support... | |
1542 | */ | |
5eb9da71 MS |
1543 | |
1544 | uri = NULL; | |
1f0275e3 MS |
1545 | #endif /* HAVE_DNSSD */ |
1546 | ||
dfd5680b | 1547 | if (logit && !uri) |
4d301e69 | 1548 | _cupsLangPuts(stderr, _("Unable to find printer\n")); |
5eb9da71 MS |
1549 | } |
1550 | ||
e07d4801 | 1551 | DEBUG_printf(("5_httpResolveURI: Returning \"%s\"", uri)); |
1f0275e3 | 1552 | |
5eb9da71 MS |
1553 | return (uri); |
1554 | } | |
1555 | ||
1556 | ||
ef416fc2 | 1557 | /* |
1558 | * 'http_copy_decode()' - Copy and decode a URI. | |
1559 | */ | |
1560 | ||
1561 | static const char * /* O - New source pointer or NULL on error */ | |
1562 | http_copy_decode(char *dst, /* O - Destination buffer */ | |
1563 | const char *src, /* I - Source pointer */ | |
1564 | int dstsize, /* I - Destination size */ | |
a4d04587 | 1565 | const char *term, /* I - Terminating characters */ |
1566 | int decode) /* I - Decode %-encoded values */ | |
ef416fc2 | 1567 | { |
1568 | char *ptr, /* Pointer into buffer */ | |
1569 | *end; /* End of buffer */ | |
1570 | int quoted; /* Quoted character */ | |
1571 | ||
1572 | ||
1573 | /* | |
1574 | * Copy the src to the destination until we hit a terminating character | |
1575 | * or the end of the string. | |
1576 | */ | |
1577 | ||
e00b005a | 1578 | for (ptr = dst, end = dst + dstsize - 1; |
1579 | *src && (!term || !strchr(term, *src)); | |
1580 | src ++) | |
ef416fc2 | 1581 | if (ptr < end) |
1582 | { | |
a4d04587 | 1583 | if (*src == '%' && decode) |
ef416fc2 | 1584 | { |
1585 | if (isxdigit(src[1] & 255) && isxdigit(src[2] & 255)) | |
1586 | { | |
1587 | /* | |
1588 | * Grab a hex-encoded character... | |
1589 | */ | |
1590 | ||
1591 | src ++; | |
1592 | if (isalpha(*src)) | |
1593 | quoted = (tolower(*src) - 'a' + 10) << 4; | |
1594 | else | |
1595 | quoted = (*src - '0') << 4; | |
1596 | ||
1597 | src ++; | |
1598 | if (isalpha(*src)) | |
1599 | quoted |= tolower(*src) - 'a' + 10; | |
1600 | else | |
1601 | quoted |= *src - '0'; | |
1602 | ||
1603 | *ptr++ = quoted; | |
1604 | } | |
1605 | else | |
1606 | { | |
1607 | /* | |
1608 | * Bad hex-encoded character... | |
1609 | */ | |
1610 | ||
1611 | *ptr = '\0'; | |
1612 | return (NULL); | |
1613 | } | |
1614 | } | |
1615 | else | |
1616 | *ptr++ = *src; | |
1617 | } | |
1618 | ||
1619 | *ptr = '\0'; | |
1620 | ||
1621 | return (src); | |
1622 | } | |
1623 | ||
1624 | ||
1625 | /* | |
1626 | * 'http_copy_encode()' - Copy and encode a URI. | |
1627 | */ | |
1628 | ||
1629 | static char * /* O - End of current URI */ | |
1630 | http_copy_encode(char *dst, /* O - Destination buffer */ | |
1631 | const char *src, /* I - Source pointer */ | |
1632 | char *dstend, /* I - End of destination buffer */ | |
a4d04587 | 1633 | const char *reserved, /* I - Extra reserved characters */ |
1634 | const char *term, /* I - Terminating characters */ | |
1635 | int encode) /* I - %-encode reserved chars? */ | |
ef416fc2 | 1636 | { |
ac884b6a | 1637 | static const char hex[] = "0123456789ABCDEF"; |
ef416fc2 | 1638 | |
1639 | ||
1640 | while (*src && dst < dstend) | |
1641 | { | |
a4d04587 | 1642 | if (term && *src == *term) |
1643 | return (dst); | |
1644 | ||
1645 | if (encode && (*src == '%' || *src <= ' ' || *src & 128 || | |
1646 | (reserved && strchr(reserved, *src)))) | |
ef416fc2 | 1647 | { |
1648 | /* | |
1649 | * Hex encode reserved characters... | |
1650 | */ | |
1651 | ||
1652 | if ((dst + 2) >= dstend) | |
1653 | break; | |
1654 | ||
1655 | *dst++ = '%'; | |
1656 | *dst++ = hex[(*src >> 4) & 15]; | |
1657 | *dst++ = hex[*src & 15]; | |
1658 | ||
1659 | src ++; | |
1660 | } | |
1661 | else | |
1662 | *dst++ = *src++; | |
1663 | } | |
1664 | ||
839a51c8 MS |
1665 | *dst = '\0'; |
1666 | ||
ef416fc2 | 1667 | if (*src) |
1668 | return (NULL); | |
1669 | else | |
1670 | return (dst); | |
1671 | } | |
1672 | ||
1673 | ||
5eb9da71 MS |
1674 | #ifdef HAVE_DNSSD |
1675 | /* | |
1676 | * 'resolve_callback()' - Build a device URI for the given service name. | |
1677 | */ | |
1678 | ||
6d2f911b | 1679 | static void DNSSD_API |
5eb9da71 MS |
1680 | resolve_callback( |
1681 | DNSServiceRef sdRef, /* I - Service reference */ | |
1682 | DNSServiceFlags flags, /* I - Results flags */ | |
1683 | uint32_t interfaceIndex, /* I - Interface number */ | |
1684 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
1685 | const char *fullName, /* I - Full service name */ | |
1686 | const char *hostTarget, /* I - Hostname */ | |
1687 | uint16_t port, /* I - Port number */ | |
1688 | uint16_t txtLen, /* I - Length of TXT record */ | |
1689 | const unsigned char *txtRecord, /* I - TXT record data */ | |
1690 | void *context) /* I - Pointer to URI buffer */ | |
1691 | { | |
1692 | const char *scheme; /* URI scheme */ | |
1693 | char rp[257]; /* Remote printer */ | |
1694 | const void *value; /* Value from TXT record */ | |
1695 | uint8_t valueLen; /* Length of value */ | |
1696 | _http_uribuf_t *uribuf; /* URI buffer */ | |
1697 | ||
1698 | ||
e07d4801 | 1699 | DEBUG_printf(("7resolve_callback(sdRef=%p, flags=%x, interfaceIndex=%u, " |
5eb9da71 | 1700 | "errorCode=%d, fullName=\"%s\", hostTarget=\"%s\", port=%u, " |
e07d4801 | 1701 | "txtLen=%u, txtRecord=%p, context=%p)", sdRef, flags, |
5eb9da71 MS |
1702 | interfaceIndex, errorCode, fullName, hostTarget, port, txtLen, |
1703 | txtRecord, context)); | |
1704 | ||
1705 | /* | |
1706 | * Figure out the scheme from the full name... | |
1707 | */ | |
1708 | ||
f11a948a | 1709 | if (strstr(fullName, "._ipp") || strstr(fullName, "._fax-ipp")) |
5eb9da71 MS |
1710 | scheme = "ipp"; |
1711 | else if (strstr(fullName, "._printer.")) | |
1712 | scheme = "lpd"; | |
1713 | else if (strstr(fullName, "._pdl-datastream.")) | |
1714 | scheme = "socket"; | |
1715 | else | |
1716 | scheme = "riousbprint"; | |
1717 | ||
1718 | /* | |
1719 | * Extract the "remote printer" key from the TXT record... | |
1720 | */ | |
1721 | ||
1722 | if ((value = TXTRecordGetValuePtr(txtLen, txtRecord, "rp", | |
1723 | &valueLen)) != NULL) | |
1724 | { | |
1725 | /* | |
1726 | * Convert to resource by concatenating with a leading "/"... | |
1727 | */ | |
1728 | ||
1729 | rp[0] = '/'; | |
1730 | memcpy(rp + 1, value, valueLen); | |
1731 | rp[valueLen + 1] = '\0'; | |
1732 | } | |
1733 | else | |
1734 | rp[0] = '\0'; | |
1735 | ||
1736 | /* | |
1737 | * Assemble the final device URI... | |
1738 | */ | |
1739 | ||
1740 | uribuf = (_http_uribuf_t *)context; | |
1741 | ||
1742 | httpAssembleURI(HTTP_URI_CODING_ALL, uribuf->buffer, uribuf->bufsize, scheme, | |
1743 | NULL, hostTarget, ntohs(port), rp); | |
1744 | ||
e07d4801 | 1745 | DEBUG_printf(("8resolve_callback: Resolved URI is \"%s\"...", |
5eb9da71 MS |
1746 | uribuf->buffer)); |
1747 | } | |
1748 | #endif /* HAVE_DNSSD */ | |
1749 | ||
1750 | ||
ef416fc2 | 1751 | /* |
b19ccc9e | 1752 | * End of "$Id: http-support.c 7952 2008-09-17 00:56:20Z mike $". |
ef416fc2 | 1753 | */ |