2 * "$Id: getputfile.c 7359 2008-02-29 19:01:35Z mike $"
4 * Get/put file functions for CUPS.
6 * Copyright 2007-2013 by Apple Inc.
7 * Copyright 1997-2006 by Easy Software Products.
9 * These coded instructions, statements, and computer programs are the
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/".
15 * This file is subject to the Apple OS-Developed Software exception.
19 * cupsGetFd() - Get a file from the server.
20 * cupsGetFile() - Get a file from the server.
21 * cupsPutFd() - Put a file on the server.
22 * cupsPutFile() - Put a file on the server.
26 * Include necessary headers...
29 #include "cups-private.h"
32 #if defined(WIN32) || defined(__EMX__)
36 #endif /* WIN32 || __EMX__ */
40 * 'cupsGetFd()' - Get a file from the server.
42 * This function returns @code HTTP_STATUS_OK@ when the file is successfully retrieved.
44 * @since CUPS 1.1.20/OS X 10.4@
47 http_status_t
/* O - HTTP status */
48 cupsGetFd(http_t
*http
, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
49 const char *resource
, /* I - Resource name */
50 int fd
) /* I - File descriptor */
52 int bytes
; /* Number of bytes read */
53 char buffer
[8192]; /* Buffer for file */
54 http_status_t status
; /* HTTP status from server */
55 char if_modified_since
[HTTP_MAX_VALUE
];
56 /* If-Modified-Since header */
60 * Range check input...
63 DEBUG_printf(("cupsGetFd(http=%p, resource=\"%s\", fd=%d)", http
,
66 if (!resource
|| fd
< 0)
71 return (HTTP_STATUS_ERROR
);
75 if ((http
= _cupsConnect()) == NULL
)
76 return (HTTP_STATUS_SERVICE_UNAVAILABLE
);
79 * Then send GET requests to the HTTP server...
82 strlcpy(if_modified_since
, httpGetField(http
, HTTP_FIELD_IF_MODIFIED_SINCE
),
83 sizeof(if_modified_since
));
87 httpClearFields(http
);
88 httpSetField(http
, HTTP_FIELD_AUTHORIZATION
, http
->authstring
);
89 httpSetField(http
, HTTP_FIELD_IF_MODIFIED_SINCE
, if_modified_since
);
91 if (httpGet(http
, resource
))
93 if (httpReconnect2(http
, 30000, NULL
))
95 status
= HTTP_STATUS_ERROR
;
100 status
= HTTP_STATUS_UNAUTHORIZED
;
105 while ((status
= httpUpdate(http
)) == HTTP_STATUS_CONTINUE
);
107 if (status
== HTTP_STATUS_UNAUTHORIZED
)
110 * Flush any error message...
116 * See if we can do authentication...
119 if (cupsDoAuthentication(http
, "GET", resource
))
121 status
= HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED
;
125 if (httpReconnect2(http
, 30000, NULL
))
127 status
= HTTP_STATUS_ERROR
;
134 else if (status
== HTTP_STATUS_UPGRADE_REQUIRED
)
136 /* Flush any error message... */
140 if (httpReconnect2(http
, 30000, NULL
))
142 status
= HTTP_STATUS_ERROR
;
146 /* Upgrade with encryption... */
147 httpEncryption(http
, HTTP_ENCRYPTION_REQUIRED
);
149 /* Try again, this time with encryption enabled... */
152 #endif /* HAVE_SSL */
154 while (status
== HTTP_STATUS_UNAUTHORIZED
|| status
== HTTP_STATUS_UPGRADE_REQUIRED
);
157 * See if we actually got the file or an error...
160 if (status
== HTTP_STATUS_OK
)
163 * Yes, copy the file...
166 while ((bytes
= httpRead2(http
, buffer
, sizeof(buffer
))) > 0)
167 write(fd
, buffer
, bytes
);
171 _cupsSetHTTPError(status
);
176 * Return the request status...
179 DEBUG_printf(("1cupsGetFd: Returning %d...", status
));
186 * 'cupsGetFile()' - Get a file from the server.
188 * This function returns @code HTTP_STATUS_OK@ when the file is successfully retrieved.
190 * @since CUPS 1.1.20/OS X 10.4@
193 http_status_t
/* O - HTTP status */
194 cupsGetFile(http_t
*http
, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
195 const char *resource
, /* I - Resource name */
196 const char *filename
) /* I - Filename */
198 int fd
; /* File descriptor */
199 http_status_t status
; /* Status */
203 * Range check input...
206 if (!http
|| !resource
|| !filename
)
209 http
->error
= EINVAL
;
211 return (HTTP_STATUS_ERROR
);
218 if ((fd
= open(filename
, O_WRONLY
| O_EXCL
| O_TRUNC
)) < 0)
221 * Couldn't open the file!
226 return (HTTP_STATUS_ERROR
);
233 status
= cupsGetFd(http
, resource
, fd
);
236 * If the file couldn't be gotten, then remove the file...
241 if (status
!= HTTP_STATUS_OK
)
245 * Return the HTTP status code...
253 * 'cupsPutFd()' - Put a file on the server.
255 * This function returns @code HTTP_STATUS_CREATED@ when the file is stored
258 * @since CUPS 1.1.20/OS X 10.4@
261 http_status_t
/* O - HTTP status */
262 cupsPutFd(http_t
*http
, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
263 const char *resource
, /* I - Resource name */
264 int fd
) /* I - File descriptor */
266 int bytes
, /* Number of bytes read */
267 retries
; /* Number of retries */
268 char buffer
[8192]; /* Buffer for file */
269 http_status_t status
; /* HTTP status from server */
273 * Range check input...
276 DEBUG_printf(("cupsPutFd(http=%p, resource=\"%s\", fd=%d)", http
,
279 if (!resource
|| fd
< 0)
282 http
->error
= EINVAL
;
284 return (HTTP_STATUS_ERROR
);
288 if ((http
= _cupsConnect()) == NULL
)
289 return (HTTP_STATUS_SERVICE_UNAVAILABLE
);
292 * Then send PUT requests to the HTTP server...
299 DEBUG_printf(("2cupsPutFd: starting attempt, authstring=\"%s\"...",
302 httpClearFields(http
);
303 httpSetField(http
, HTTP_FIELD_AUTHORIZATION
, http
->authstring
);
304 httpSetField(http
, HTTP_FIELD_TRANSFER_ENCODING
, "chunked");
305 httpSetExpect(http
, HTTP_STATUS_CONTINUE
);
307 if (httpPut(http
, resource
))
309 if (httpReconnect2(http
, 30000, NULL
))
311 status
= HTTP_STATUS_ERROR
;
316 status
= HTTP_STATUS_UNAUTHORIZED
;
322 * Wait up to 1 second for a 100-continue response...
325 if (httpWait(http
, 1000))
326 status
= httpUpdate(http
);
328 status
= HTTP_STATUS_CONTINUE
;
330 if (status
== HTTP_STATUS_CONTINUE
)
336 lseek(fd
, 0, SEEK_SET
);
338 while ((bytes
= read(fd
, buffer
, sizeof(buffer
))) > 0)
341 if ((status
= httpUpdate(http
)) != HTTP_STATUS_CONTINUE
)
345 httpWrite2(http
, buffer
, bytes
);
348 if (status
== HTTP_STATUS_CONTINUE
)
350 httpWrite2(http
, buffer
, 0);
352 while ((status
= httpUpdate(http
)) == HTTP_STATUS_CONTINUE
);
355 if (status
== HTTP_STATUS_ERROR
&& !retries
)
357 DEBUG_printf(("2cupsPutFd: retry on status %d", status
));
361 /* Flush any error message... */
365 if (httpReconnect2(http
, 30000, NULL
))
367 status
= HTTP_STATUS_ERROR
;
375 DEBUG_printf(("2cupsPutFd: status=%d", status
));
377 if (status
== HTTP_STATUS_UNAUTHORIZED
)
380 * Flush any error message...
386 * See if we can do authentication...
389 if (cupsDoAuthentication(http
, "PUT", resource
))
391 status
= HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED
;
395 if (httpReconnect2(http
, 30000, NULL
))
397 status
= HTTP_STATUS_ERROR
;
404 else if (status
== HTTP_STATUS_UPGRADE_REQUIRED
)
406 /* Flush any error message... */
410 if (httpReconnect2(http
, 30000, NULL
))
412 status
= HTTP_STATUS_ERROR
;
416 /* Upgrade with encryption... */
417 httpEncryption(http
, HTTP_ENCRYPTION_REQUIRED
);
419 /* Try again, this time with encryption enabled... */
422 #endif /* HAVE_SSL */
424 while (status
== HTTP_STATUS_UNAUTHORIZED
|| status
== HTTP_STATUS_UPGRADE_REQUIRED
||
425 (status
== HTTP_STATUS_ERROR
&& retries
< 2));
428 * See if we actually put the file or an error...
431 if (status
!= HTTP_STATUS_CREATED
)
433 _cupsSetHTTPError(status
);
437 DEBUG_printf(("1cupsPutFd: Returning %d...", status
));
444 * 'cupsPutFile()' - Put a file on the server.
446 * This function returns @code HTTP_CREATED@ when the file is stored
449 * @since CUPS 1.1.20/OS X 10.4@
452 http_status_t
/* O - HTTP status */
453 cupsPutFile(http_t
*http
, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
454 const char *resource
, /* I - Resource name */
455 const char *filename
) /* I - Filename */
457 int fd
; /* File descriptor */
458 http_status_t status
; /* Status */
462 * Range check input...
465 if (!http
|| !resource
|| !filename
)
468 http
->error
= EINVAL
;
470 return (HTTP_STATUS_ERROR
);
474 * Open the local file...
477 if ((fd
= open(filename
, O_RDONLY
)) < 0)
480 * Couldn't open the file!
485 return (HTTP_STATUS_ERROR
);
492 status
= cupsPutFd(http
, resource
, fd
);
501 * End of "$Id: getputfile.c 7359 2008-02-29 19:01:35Z mike $".