1 /*
2  * Destination localization support for CUPS.
3  *
4  * Copyright 2012-2014 by Apple Inc.
5  *
6  * These coded instructions, statements, and computer programs are the
7  * property of Apple Inc. and are protected by Federal copyright
8  * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
9  * which should have been included with this file.  If this file is
10  * missing or damaged, see the license at "http://www.cups.org/".
11  *
12  * This file is subject to the Apple OS-Developed Software exception.
13  */
14 
15 /*
16  * Include necessary headers...
17  */
18 
19 #include "cups-private.h"
20 
21 
22 /*
23  * Local functions...
24  */
25 
26 static void	cups_create_localizations(http_t *http, cups_dinfo_t *dinfo);
27 static int	cups_read_strings(cups_file_t *fp, char *buffer, size_t bufsize,
28 		                  char **id, char **str);
29 static char	*cups_scan_strings(char *buffer);
30 
31 
32 /*
33  * 'cupsLocalizeDestMedia()' - Get the localized string for a destination media
34  *                             size.
35  *
36  * The returned string is stored in the destination information and will become
37  * invalid if the destination information is deleted.
38  *
39  * @since CUPS 2.0/macOS 10.10@
40  */
41 
42 const char *				/* O - Localized string */
cupsLocalizeDestMedia(http_t * http,cups_dest_t * dest,cups_dinfo_t * dinfo,unsigned flags,cups_size_t * size)43 cupsLocalizeDestMedia(
44     http_t       *http,			/* I - Connection to destination */
45     cups_dest_t  *dest,			/* I - Destination */
46     cups_dinfo_t *dinfo,		/* I - Destination information */
47     unsigned     flags,			/* I - Media flags */
48     cups_size_t  *size)			/* I - Media size */
49 {
50   cups_lang_t		*lang;		/* Standard localizations */
51   _cups_message_t	key,		/* Search key */
52 			*match;		/* Matching entry */
53   pwg_media_t		*pwg;		/* PWG media information */
54   cups_array_t		*db;		/* Media database */
55   _cups_media_db_t	*mdb;		/* Media database entry */
56   char			name[1024],	/* Size name */
57 			temp[256];	/* Temporary string */
58   const char		*lsize,		/* Localized media size */
59 			*lsource,	/* Localized media source */
60 			*ltype;		/* Localized media type */
61 
62 
63   DEBUG_printf(("cupsLocalizeDestMedia(http=%p, dest=%p, dinfo=%p, flags=%x, size=%p(\"%s\"))", (void *)http, (void *)dest, (void *)dinfo, flags, (void *)size, size ? size->media : "(null)"));
64 
65  /*
66   * Range check input...
67   */
68 
69   if (!http || !dest || !dinfo || !size)
70   {
71     DEBUG_puts("1cupsLocalizeDestMedia: Returning NULL.");
72     _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
73     return (NULL);
74   }
75 
76  /*
77   * See if the localization is cached...
78   */
79 
80   if (!dinfo->localizations)
81     cups_create_localizations(http, dinfo);
82 
83   key.id = size->media;
84   if ((match = (_cups_message_t *)cupsArrayFind(dinfo->localizations, &key)) != NULL)
85   {
86     DEBUG_printf(("1cupsLocalizeDestMedia: Returning \"%s\".", match->str));
87     return (match->str);
88   }
89 
90  /*
91   * If not, get the localized size, source, and type strings...
92   */
93 
94   lang = cupsLangDefault();
95 
96   snprintf(temp, sizeof(temp), "media.%s", size->media);
97   if ((lsize = _cupsLangString(lang, temp)) != NULL && strcmp(lsize, temp))
98   {
99     DEBUG_printf(("1cupsLocalizeDestMedia: Returning standard localization \"%s\".", lsize));
100     return (lsize);
101   }
102 
103   pwg  = pwgMediaForSize(size->width, size->length);
104 
105   if (pwg->ppd)
106     lsize = _cupsLangString(lang, pwg->ppd);
107   else
108     lsize = NULL;
109 
110   if (!lsize)
111   {
112     if ((size->width % 635) == 0 && (size->length % 635) == 0)
113     {
114      /*
115       * Use inches since the size is a multiple of 1/4 inch.
116       */
117 
118       snprintf(temp, sizeof(temp), _cupsLangString(lang, _("%g x %g \"")), size->width / 2540.0, size->length / 2540.0);
119     }
120     else
121     {
122      /*
123       * Use millimeters since the size is not a multiple of 1/4 inch.
124       */
125 
126       snprintf(temp, sizeof(temp), _cupsLangString(lang, _("%d x %d mm")), (size->width + 50) / 100, (size->length + 50) / 100);
127     }
128 
129     lsize = temp;
130   }
131 
132   if (flags & CUPS_MEDIA_FLAGS_READY)
133     db = dinfo->ready_db;
134   else
135     db = dinfo->media_db;
136 
137   DEBUG_printf(("1cupsLocalizeDestMedia: size->media=\"%s\"", size->media));
138 
139   for (mdb = (_cups_media_db_t *)cupsArrayFirst(db); mdb; mdb = (_cups_media_db_t *)cupsArrayNext(db))
140   {
141     if (mdb->key && !strcmp(mdb->key, size->media))
142       break;
143     else if (mdb->size_name && !strcmp(mdb->size_name, size->media))
144       break;
145   }
146 
147   if (!mdb)
148   {
149     for (mdb = (_cups_media_db_t *)cupsArrayFirst(db); mdb; mdb = (_cups_media_db_t *)cupsArrayNext(db))
150     {
151       if (mdb->width == size->width && mdb->length == size->length && mdb->bottom == size->bottom && mdb->left == size->left && mdb->right == size->right && mdb->top == size->top)
152 	break;
153     }
154   }
155 
156   if (mdb)
157   {
158     DEBUG_printf(("1cupsLocalizeDestMedia: MATCH mdb%p [key=\"%s\" size_name=\"%s\" source=\"%s\" type=\"%s\" width=%d length=%d B%d L%d R%d T%d]", (void *)mdb, mdb->key, mdb->size_name, mdb->source, mdb->type, mdb->width, mdb->length, mdb->bottom, mdb->left, mdb->right, mdb->top));
159 
160     lsource = cupsLocalizeDestValue(http, dest, dinfo, "media-source", mdb->source);
161     ltype   = cupsLocalizeDestValue(http, dest, dinfo, "media-type", mdb->type);
162   }
163   else
164   {
165     lsource = NULL;
166     ltype   = NULL;
167   }
168 
169   if (!lsource && !ltype)
170   {
171     if (size->bottom || size->left || size->right || size->top)
172       snprintf(name, sizeof(name), _cupsLangString(lang, _("%s (Borderless)")), lsize);
173     else
174       strlcpy(name, lsize, sizeof(name));
175   }
176   else if (!lsource)
177   {
178     if (size->bottom || size->left || size->right || size->top)
179       snprintf(name, sizeof(name), _cupsLangString(lang, _("%s (Borderless, %s)")), lsize, ltype);
180     else
181       snprintf(name, sizeof(name), _cupsLangString(lang, _("%s (%s)")), lsize, ltype);
182   }
183   else if (!ltype)
184   {
185     if (size->bottom || size->left || size->right || size->top)
186       snprintf(name, sizeof(name), _cupsLangString(lang, _("%s (Borderless, %s)")), lsize, lsource);
187     else
188       snprintf(name, sizeof(name), _cupsLangString(lang, _("%s (%s)")), lsize, lsource);
189   }
190   else
191   {
192     if (size->bottom || size->left || size->right || size->top)
193       snprintf(name, sizeof(name), _cupsLangString(lang, _("%s (Borderless, %s, %s)")), lsize, ltype, lsource);
194     else
195       snprintf(name, sizeof(name), _cupsLangString(lang, _("%s (%s, %s)")), lsize, ltype, lsource);
196   }
197 
198   if ((match = (_cups_message_t *)calloc(1, sizeof(_cups_message_t))) == NULL)
199     return (NULL);
200 
201   match->id  = strdup(size->media);
202   match->str = strdup(name);
203 
204   cupsArrayAdd(dinfo->localizations, match);
205 
206   DEBUG_printf(("1cupsLocalizeDestMedia: Returning \"%s\".", match->str));
207 
208   return (match->str);
209 }
210 
211 
212 /*
213  * 'cupsLocalizeDestOption()' - Get the localized string for a destination
214  *                              option.
215  *
216  * The returned string is stored in the destination information and will become
217  * invalid if the destination information is deleted.
218  *
219  * @since CUPS 1.6/macOS 10.8@
220  */
221 
222 const char *				/* O - Localized string */
cupsLocalizeDestOption(http_t * http,cups_dest_t * dest,cups_dinfo_t * dinfo,const char * option)223 cupsLocalizeDestOption(
224     http_t       *http,			/* I - Connection to destination */
225     cups_dest_t  *dest,			/* I - Destination */
226     cups_dinfo_t *dinfo,		/* I - Destination information */
227     const char   *option)		/* I - Option to localize */
228 {
229   _cups_message_t	key,		/* Search key */
230 			*match;		/* Matching entry */
231   const char            *localized;     /* Localized string */
232 
233 
234   DEBUG_printf(("cupsLocalizeDestOption(http=%p, dest=%p, dinfo=%p, option=\"%s\")", (void *)http, (void *)dest, (void *)dinfo, option));
235 
236   if (!http || !dest || !dinfo)
237     return (option);
238 
239   if (!dinfo->localizations)
240     cups_create_localizations(http, dinfo);
241 
242   key.id = (char *)option;
243   if ((match = (_cups_message_t *)cupsArrayFind(dinfo->localizations,
244                                                 &key)) != NULL)
245     return (match->str);
246   else if ((localized = _cupsLangString(cupsLangDefault(), option)) != NULL)
247     return (localized);
248   else
249     return (option);
250 }
251 
252 
253 /*
254  * 'cupsLocalizeDestValue()' - Get the localized string for a destination
255  *                             option+value pair.
256  *
257  * The returned string is stored in the destination information and will become
258  * invalid if the destination information is deleted.
259  *
260  * @since CUPS 1.6/macOS 10.8@
261  */
262 
263 const char *				/* O - Localized string */
cupsLocalizeDestValue(http_t * http,cups_dest_t * dest,cups_dinfo_t * dinfo,const char * option,const char * value)264 cupsLocalizeDestValue(
265     http_t       *http,			/* I - Connection to destination */
266     cups_dest_t  *dest,			/* I - Destination */
267     cups_dinfo_t *dinfo,		/* I - Destination information */
268     const char   *option,		/* I - Option to localize */
269     const char   *value)		/* I - Value to localize */
270 {
271   _cups_message_t	key,		/* Search key */
272 			*match;		/* Matching entry */
273   char			pair[256];	/* option.value pair */
274   const char            *localized;     /* Localized string */
275 
276 
277   DEBUG_printf(("cupsLocalizeDestValue(http=%p, dest=%p, dinfo=%p, option=\"%s\", value=\"%s\")", (void *)http, (void *)dest, (void *)dinfo, option, value));
278 
279   if (!http || !dest || !dinfo)
280     return (value);
281 
282   if (!strcmp(option, "media"))
283   {
284     pwg_media_t *media = pwgMediaForPWG(value);
285     cups_size_t size;
286 
287     strlcpy(size.media, value, sizeof(size.media));
288     size.width  = media ? media->width : 0;
289     size.length = media ? media->length : 0;
290     size.left   = 0;
291     size.right  = 0;
292     size.bottom = 0;
293     size.top    = 0;
294 
295     return (cupsLocalizeDestMedia(http, dest, dinfo, CUPS_MEDIA_FLAGS_DEFAULT, &size));
296   }
297 
298   if (!dinfo->localizations)
299     cups_create_localizations(http, dinfo);
300 
301   snprintf(pair, sizeof(pair), "%s.%s", option, value);
302   key.id = pair;
303   if ((match = (_cups_message_t *)cupsArrayFind(dinfo->localizations,
304                                                 &key)) != NULL)
305     return (match->str);
306   else if ((localized = _cupsLangString(cupsLangDefault(), pair)) != NULL && strcmp(localized, pair))
307     return (localized);
308   else
309     return (value);
310 }
311 
312 
313 /*
314  * 'cups_create_localizations()' - Create the localizations array for a
315  *                                 destination.
316  */
317 
318 static void
cups_create_localizations(http_t * http,cups_dinfo_t * dinfo)319 cups_create_localizations(
320     http_t       *http,			/* I - Connection to destination */
321     cups_dinfo_t *dinfo)		/* I - Destination informations */
322 {
323   http_t		*http2;		/* Connection for strings file */
324   http_status_t		status;		/* Request status */
325   ipp_attribute_t	*attr;		/* "printer-strings-uri" attribute */
326   char			scheme[32],	/* URI scheme */
327   			userpass[256],	/* Username/password info */
328   			hostname[256],	/* Hostname */
329   			resource[1024],	/* Resource */
330   			http_hostname[256],
331   					/* Hostname of connection */
332 			tempfile[1024];	/* Temporary filename */
333   int			port;		/* Port number */
334   http_encryption_t	encryption;	/* Encryption to use */
335   cups_file_t		*temp;		/* Temporary file */
336 
337 
338  /*
339   * Create an empty message catalog...
340   */
341 
342   dinfo->localizations = _cupsMessageNew(NULL);
343 
344  /*
345   * See if there are any localizations...
346   */
347 
348   if ((attr = ippFindAttribute(dinfo->attrs, "printer-strings-uri",
349                                IPP_TAG_URI)) == NULL)
350   {
351    /*
352     * Nope...
353     */
354 
355     DEBUG_puts("4cups_create_localizations: No printer-strings-uri (uri) "
356                "value.");
357     return;				/* Nope */
358   }
359 
360  /*
361   * Pull apart the URI and determine whether we need to try a different
362   * server...
363   */
364 
365   if (httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[0].string.text,
366                       scheme, sizeof(scheme), userpass, sizeof(userpass),
367                       hostname, sizeof(hostname), &port, resource,
368                       sizeof(resource)) < HTTP_URI_STATUS_OK)
369   {
370     DEBUG_printf(("4cups_create_localizations: Bad printer-strings-uri value "
371                   "\"%s\".", attr->values[0].string.text));
372     return;
373   }
374 
375   httpGetHostname(http, http_hostname, sizeof(http_hostname));
376 
377   if (!_cups_strcasecmp(http_hostname, hostname) &&
378       port == httpAddrPort(http->hostaddr))
379   {
380    /*
381     * Use the same connection...
382     */
383 
384     http2 = http;
385   }
386   else
387   {
388    /*
389     * Connect to the alternate host...
390     */
391 
392     if (!strcmp(scheme, "https"))
393       encryption = HTTP_ENCRYPTION_ALWAYS;
394     else
395       encryption = HTTP_ENCRYPTION_IF_REQUESTED;
396 
397     if ((http2 = httpConnect2(hostname, port, NULL, AF_UNSPEC, encryption, 1,
398                               30000, NULL)) == NULL)
399     {
400       DEBUG_printf(("4cups_create_localizations: Unable to connect to "
401                     "%s:%d: %s", hostname, port, cupsLastErrorString()));
402       return;
403     }
404   }
405 
406  /*
407   * Get a temporary file...
408   */
409 
410   if ((temp = cupsTempFile2(tempfile, sizeof(tempfile))) == NULL)
411   {
412     DEBUG_printf(("4cups_create_localizations: Unable to create temporary "
413                   "file: %s", cupsLastErrorString()));
414     if (http2 != http)
415       httpClose(http2);
416     return;
417   }
418 
419   status = cupsGetFd(http2, resource, cupsFileNumber(temp));
420 
421   DEBUG_printf(("4cups_create_localizations: GET %s = %s", resource,
422                 httpStatus(status)));
423 
424   if (status == HTTP_STATUS_OK)
425   {
426    /*
427     * Got the file, read it...
428     */
429 
430     char		buffer[8192],	/* Message buffer */
431     			*id,		/* ID string */
432     			*str;		/* Translated message */
433     _cups_message_t	*m;		/* Current message */
434 
435     lseek(cupsFileNumber(temp), 0, SEEK_SET);
436 
437     while (cups_read_strings(temp, buffer, sizeof(buffer), &id, &str))
438     {
439       if ((m = malloc(sizeof(_cups_message_t))) == NULL)
440         break;
441 
442       m->id  = strdup(id);
443       m->str = strdup(str);
444 
445       if (m->id && m->str)
446         cupsArrayAdd(dinfo->localizations, m);
447       else
448       {
449         if (m->id)
450           free(m->id);
451 
452         if (m->str)
453           free(m->str);
454 
455         free(m);
456         break;
457       }
458     }
459   }
460 
461   DEBUG_printf(("4cups_create_localizations: %d messages loaded.",
462                 cupsArrayCount(dinfo->localizations)));
463 
464  /*
465   * Cleanup...
466   */
467 
468   unlink(tempfile);
469   cupsFileClose(temp);
470 
471   if (http2 != http)
472     httpClose(http2);
473 }
474 
475 
476 /*
477  * 'cups_read_strings()' - Read a pair of strings from a .strings file.
478  */
479 
480 static int				/* O - 1 on success, 0 on failure */
cups_read_strings(cups_file_t * strings,char * buffer,size_t bufsize,char ** id,char ** str)481 cups_read_strings(cups_file_t *strings,	/* I - .strings file */
482                   char        *buffer,	/* I - Line buffer */
483                   size_t      bufsize,	/* I - Size of line buffer */
484 		  char        **id,	/* O - Pointer to ID string */
485 		  char        **str)	/* O - Pointer to translation string */
486 {
487   char	*bufptr;			/* Pointer into buffer */
488 
489 
490   while (cupsFileGets(strings, buffer, bufsize))
491   {
492     if (buffer[0] != '\"')
493       continue;
494 
495     *id    = buffer + 1;
496     bufptr = cups_scan_strings(buffer);
497 
498     if (*bufptr != '\"')
499       continue;
500 
501     *bufptr++ = '\0';
502 
503     while (*bufptr && *bufptr != '\"')
504       bufptr ++;
505 
506     if (!*bufptr)
507       continue;
508 
509     *str   = bufptr + 1;
510     bufptr = cups_scan_strings(bufptr);
511 
512     if (*bufptr != '\"')
513       continue;
514 
515     *bufptr = '\0';
516 
517     return (1);
518   }
519 
520   return (0);
521 }
522 
523 
524 /*
525  * 'cups_scan_strings()' - Scan a quoted string.
526  */
527 
528 static char *				/* O - End of string */
cups_scan_strings(char * buffer)529 cups_scan_strings(char *buffer)		/* I - Start of string */
530 {
531   char	*bufptr;			/* Pointer into string */
532 
533 
534   for (bufptr = buffer + 1; *bufptr && *bufptr != '\"'; bufptr ++)
535   {
536     if (*bufptr == '\\')
537     {
538       if (bufptr[1] >= '0' && bufptr[1] <= '3' &&
539 	  bufptr[2] >= '0' && bufptr[2] <= '7' &&
540 	  bufptr[3] >= '0' && bufptr[3] <= '7')
541       {
542        /*
543 	* Decode \nnn octal escape...
544 	*/
545 
546 	*bufptr = (char)(((((bufptr[1] - '0') << 3) | (bufptr[2] - '0')) << 3) | (bufptr[3] - '0'));
547 	_cups_strcpy(bufptr + 1, bufptr + 4);
548       }
549       else
550       {
551        /*
552 	* Decode \C escape...
553 	*/
554 
555 	_cups_strcpy(bufptr, bufptr + 1);
556 	if (*bufptr == 'n')
557 	  *bufptr = '\n';
558 	else if (*bufptr == 'r')
559 	  *bufptr = '\r';
560 	else if (*bufptr == 't')
561 	  *bufptr = '\t';
562       }
563     }
564   }
565 
566   return (bufptr);
567 }
568