Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * xmlIO.c : implementation of the I/O interfaces used by the parser |
| 3 | * |
| 4 | * See Copyright for the status of this software. |
| 5 | * |
| 6 | * Daniel.Veillard@w3.org |
| 7 | * |
| 8 | * 14 Nov 2000 ht - for VMS, truncated name of long functions to under 32 char |
| 9 | */ |
| 10 | |
| 11 | #ifdef WIN32 |
| 12 | #include "win32config.h" |
| 13 | #else |
| 14 | #include "config.h" |
| 15 | #endif |
| 16 | |
| 17 | #include <stdio.h> |
| 18 | #include <string.h> |
| 19 | #include <errno.h> |
| 20 | |
| 21 | #ifdef HAVE_SYS_TYPES_H |
| 22 | #include <sys/types.h> |
| 23 | #endif |
| 24 | #ifdef HAVE_SYS_STAT_H |
| 25 | #include <sys/stat.h> |
| 26 | #endif |
| 27 | #ifdef HAVE_FCNTL_H |
| 28 | #include <fcntl.h> |
| 29 | #endif |
| 30 | #ifdef HAVE_UNISTD_H |
| 31 | #include <unistd.h> |
| 32 | #endif |
| 33 | #ifdef HAVE_STDLIB_H |
| 34 | #include <stdlib.h> |
| 35 | #endif |
| 36 | #ifdef HAVE_ZLIB_H |
| 37 | #include <zlib.h> |
| 38 | #endif |
| 39 | |
| 40 | /* Figure a portable way to know if a file is a directory. */ |
| 41 | #ifndef HAVE_STAT |
| 42 | # ifdef HAVE__STAT |
| 43 | # define stat(x,y) _stat(x,y) |
| 44 | # define HAVE_STAT |
| 45 | # endif |
| 46 | #endif |
| 47 | #ifdef HAVE_STAT |
| 48 | # ifndef S_ISDIR |
| 49 | # ifdef _S_ISDIR |
| 50 | # define S_ISDIR(x) _S_ISDIR(x) |
| 51 | # else |
| 52 | # ifdef S_IFDIR |
| 53 | # ifndef S_IFMT |
| 54 | # ifdef _S_IFMT |
| 55 | # define S_IFMT _S_IFMT |
| 56 | # endif |
| 57 | # endif |
| 58 | # ifdef S_IFMT |
| 59 | # define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
| 60 | # endif |
| 61 | # endif |
| 62 | # endif |
| 63 | # endif |
| 64 | #endif |
| 65 | |
| 66 | #include <libxml/xmlmemory.h> |
| 67 | #include <libxml/parser.h> |
| 68 | #include <libxml/parserInternals.h> |
| 69 | #include <libxml/xmlIO.h> |
| 70 | #include <libxml/nanohttp.h> |
| 71 | #include <libxml/nanoftp.h> |
| 72 | #include <libxml/xmlerror.h> |
| 73 | |
| 74 | #ifdef VMS |
| 75 | #define xmlRegisterDefaultInputCallbacks xmlRegisterDefInputCallbacks |
| 76 | #define xmlRegisterDefaultOutputCallbacks xmlRegisterDefOutputCallbacks |
| 77 | #endif |
| 78 | |
| 79 | /* #define VERBOSE_FAILURE */ |
| 80 | /* #define DEBUG_EXTERNAL_ENTITIES */ |
| 81 | /* #define DEBUG_INPUT */ |
| 82 | |
| 83 | #ifdef DEBUG_INPUT |
| 84 | #define MINLEN 40 |
| 85 | #else |
| 86 | #define MINLEN 4000 |
| 87 | #endif |
| 88 | |
| 89 | /* |
| 90 | * Input I/O callback sets |
| 91 | */ |
| 92 | typedef struct _xmlInputCallback { |
| 93 | xmlInputMatchCallback matchcallback; |
| 94 | xmlInputOpenCallback opencallback; |
| 95 | xmlInputReadCallback readcallback; |
| 96 | xmlInputCloseCallback closecallback; |
| 97 | } xmlInputCallback; |
| 98 | |
| 99 | #define MAX_INPUT_CALLBACK 15 |
| 100 | |
| 101 | xmlInputCallback xmlInputCallbackTable[MAX_INPUT_CALLBACK]; |
| 102 | int xmlInputCallbackNr = 0; |
| 103 | int xmlInputCallbackInitialized = 0; |
| 104 | |
| 105 | /* |
| 106 | * Output I/O callback sets |
| 107 | */ |
| 108 | typedef struct _xmlOutputCallback { |
| 109 | xmlOutputMatchCallback matchcallback; |
| 110 | xmlOutputOpenCallback opencallback; |
| 111 | xmlOutputWriteCallback writecallback; |
| 112 | xmlOutputCloseCallback closecallback; |
| 113 | } xmlOutputCallback; |
| 114 | |
| 115 | #define MAX_OUTPUT_CALLBACK 15 |
| 116 | |
| 117 | xmlOutputCallback xmlOutputCallbackTable[MAX_OUTPUT_CALLBACK]; |
| 118 | int xmlOutputCallbackNr = 0; |
| 119 | int xmlOutputCallbackInitialized = 0; |
| 120 | |
| 121 | /************************************************************************ |
| 122 | * * |
| 123 | * Standard I/O for file accesses * |
| 124 | * * |
| 125 | ************************************************************************/ |
| 126 | |
| 127 | /** |
| 128 | * xmlCheckFilename |
| 129 | * @path: the path to check |
| 130 | * |
| 131 | * function checks to see if @path is a valid source |
| 132 | * (file, socket...) for XML. |
| 133 | * |
| 134 | * if stat is not available on the target machine, |
| 135 | * returns 1. if stat fails, returns 0 (if calling |
| 136 | * stat on the filename fails, it can't be right). |
| 137 | * if stat succeeds and the file is a directory, |
| 138 | * sets errno to EISDIR and returns 0. otherwise |
| 139 | * returns 1. |
| 140 | */ |
| 141 | |
| 142 | static int |
| 143 | xmlCheckFilename (const char *path) |
| 144 | { |
| 145 | #ifdef HAVE_STAT |
| 146 | #ifdef S_ISDIR |
| 147 | struct stat stat_buffer; |
| 148 | |
| 149 | if (stat(path, &stat_buffer) == -1) |
| 150 | return 0; |
| 151 | |
| 152 | if (S_ISDIR(stat_buffer.st_mode)) { |
| 153 | errno = EISDIR; |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | #endif |
| 158 | #endif |
| 159 | return 1; |
| 160 | } |
| 161 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 162 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 163 | xmlNop(void) { |
| 164 | return(0); |
| 165 | } |
| 166 | |
| 167 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 168 | * xmlFdRead: |
| 169 | * @context: the I/O context |
| 170 | * @buffer: where to drop data |
| 171 | * @len: number of bytes to read |
| 172 | * |
| 173 | * Read @len bytes to @buffer from the I/O channel. |
| 174 | * |
| 175 | * Returns the number of bytes written |
| 176 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 177 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 178 | xmlFdRead (void * context, char * buffer, int len) { |
| 179 | return(read((int) context, &buffer[0], len)); |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * xmlFdWrite: |
| 184 | * @context: the I/O context |
| 185 | * @buffer: where to get data |
| 186 | * @len: number of bytes to write |
| 187 | * |
| 188 | * Write @len bytes from @buffer to the I/O channel. |
| 189 | * |
| 190 | * Returns the number of bytes written |
| 191 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 192 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 193 | xmlFdWrite (void * context, const char * buffer, int len) { |
| 194 | return(write((int) context, &buffer[0], len)); |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * xmlFdClose: |
| 199 | * @context: the I/O context |
| 200 | * |
| 201 | * Close an I/O channel |
| 202 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 203 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 204 | xmlFdClose (void * context) { |
| 205 | close((int) context); |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * xmlFileMatch: |
| 210 | * @filename: the URI for matching |
| 211 | * |
| 212 | * input from FILE * |
| 213 | * |
| 214 | * Returns 1 if matches, 0 otherwise |
| 215 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 216 | static int |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame^] | 217 | xmlFileMatch (const char *filename ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 218 | return(1); |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * xmlFileOpen: |
| 223 | * @filename: the URI for matching |
| 224 | * |
| 225 | * input from FILE *, supports compressed input |
| 226 | * if @filename is " " then the standard input is used |
| 227 | * |
| 228 | * Returns an I/O context or NULL in case of error |
| 229 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 230 | static void * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 231 | xmlFileOpen (const char *filename) { |
| 232 | const char *path = NULL; |
| 233 | FILE *fd; |
| 234 | |
| 235 | if (!strcmp(filename, "-")) { |
| 236 | fd = stdin; |
| 237 | return((void *) fd); |
| 238 | } |
| 239 | |
| 240 | if (!strncmp(filename, "file://localhost", 16)) |
| 241 | path = &filename[16]; |
| 242 | else if (!strncmp(filename, "file:///", 8)) |
| 243 | path = &filename[8]; |
| 244 | else |
| 245 | path = filename; |
| 246 | |
| 247 | if (path == NULL) |
| 248 | return(NULL); |
| 249 | if (!xmlCheckFilename(path)) |
| 250 | return(NULL); |
| 251 | |
| 252 | #ifdef WIN32 |
| 253 | fd = fopen(path, "rb"); |
| 254 | #else |
| 255 | fd = fopen(path, "r"); |
| 256 | #endif /* WIN32 */ |
| 257 | return((void *) fd); |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * xmlFileOpenW: |
| 262 | * @filename: the URI for matching |
| 263 | * |
| 264 | * output to from FILE *, |
| 265 | * if @filename is "-" then the standard output is used |
| 266 | * |
| 267 | * Returns an I/O context or NULL in case of error |
| 268 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 269 | static void * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 270 | xmlFileOpenW (const char *filename) { |
| 271 | const char *path = NULL; |
| 272 | FILE *fd; |
| 273 | |
| 274 | if (!strcmp(filename, "-")) { |
| 275 | fd = stdout; |
| 276 | return((void *) fd); |
| 277 | } |
| 278 | |
| 279 | if (!strncmp(filename, "file://localhost", 16)) |
| 280 | path = &filename[16]; |
| 281 | else if (!strncmp(filename, "file:///", 8)) |
| 282 | path = &filename[8]; |
| 283 | else |
| 284 | path = filename; |
| 285 | |
| 286 | if (path == NULL) |
| 287 | return(NULL); |
| 288 | |
| 289 | fd = fopen(path, "w"); |
| 290 | return((void *) fd); |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * xmlFileRead: |
| 295 | * @context: the I/O context |
| 296 | * @buffer: where to drop data |
| 297 | * @len: number of bytes to write |
| 298 | * |
| 299 | * Read @len bytes to @buffer from the I/O channel. |
| 300 | * |
| 301 | * Returns the number of bytes written |
| 302 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 303 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 304 | xmlFileRead (void * context, char * buffer, int len) { |
| 305 | return(fread(&buffer[0], 1, len, (FILE *) context)); |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * xmlFileWrite: |
| 310 | * @context: the I/O context |
| 311 | * @buffer: where to drop data |
| 312 | * @len: number of bytes to write |
| 313 | * |
| 314 | * Write @len bytes from @buffer to the I/O channel. |
| 315 | * |
| 316 | * Returns the number of bytes written |
| 317 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 318 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 319 | xmlFileWrite (void * context, const char * buffer, int len) { |
| 320 | return(fwrite(&buffer[0], 1, len, (FILE *) context)); |
| 321 | } |
| 322 | |
| 323 | /** |
| 324 | * xmlFileClose: |
| 325 | * @context: the I/O context |
| 326 | * |
| 327 | * Close an I/O channel |
| 328 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 329 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 330 | xmlFileClose (void * context) { |
| 331 | fclose((FILE *) context); |
| 332 | } |
| 333 | |
| 334 | /** |
| 335 | * xmlFileFlush: |
| 336 | * @context: the I/O context |
| 337 | * |
| 338 | * Flush an I/O channel |
| 339 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 340 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 341 | xmlFileFlush (void * context) { |
| 342 | fflush((FILE *) context); |
| 343 | } |
| 344 | |
| 345 | #ifdef HAVE_ZLIB_H |
| 346 | /************************************************************************ |
| 347 | * * |
| 348 | * I/O for compressed file accesses * |
| 349 | * * |
| 350 | ************************************************************************/ |
| 351 | /** |
| 352 | * xmlGzfileMatch: |
| 353 | * @filename: the URI for matching |
| 354 | * |
| 355 | * input from compressed file test |
| 356 | * |
| 357 | * Returns 1 if matches, 0 otherwise |
| 358 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 359 | static int |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame^] | 360 | xmlGzfileMatch (const char *filename ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 361 | return(1); |
| 362 | } |
| 363 | |
| 364 | /** |
| 365 | * xmlGzfileOpen: |
| 366 | * @filename: the URI for matching |
| 367 | * |
| 368 | * input from compressed file open |
| 369 | * if @filename is " " then the standard input is used |
| 370 | * |
| 371 | * Returns an I/O context or NULL in case of error |
| 372 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 373 | static void * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 374 | xmlGzfileOpen (const char *filename) { |
| 375 | const char *path = NULL; |
| 376 | gzFile fd; |
| 377 | |
| 378 | if (!strcmp(filename, "-")) { |
| 379 | fd = gzdopen(fileno(stdin), "rb"); |
| 380 | return((void *) fd); |
| 381 | } |
| 382 | |
| 383 | if (!strncmp(filename, "file://localhost", 16)) |
| 384 | path = &filename[16]; |
| 385 | else if (!strncmp(filename, "file:///", 8)) |
| 386 | path = &filename[7]; |
| 387 | else |
| 388 | path = filename; |
| 389 | |
| 390 | if (path == NULL) |
| 391 | return(NULL); |
| 392 | if (!xmlCheckFilename(path)) |
| 393 | return(NULL); |
| 394 | |
| 395 | fd = gzopen(path, "rb"); |
| 396 | return((void *) fd); |
| 397 | } |
| 398 | |
| 399 | /** |
| 400 | * xmlGzfileOpenW: |
| 401 | * @filename: the URI for matching |
| 402 | * @compression: the compression factor (0 - 9 included) |
| 403 | * |
| 404 | * input from compressed file open |
| 405 | * if @filename is " " then the standard input is used |
| 406 | * |
| 407 | * Returns an I/O context or NULL in case of error |
| 408 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 409 | static void * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 410 | xmlGzfileOpenW (const char *filename, int compression) { |
| 411 | const char *path = NULL; |
| 412 | char mode[15]; |
| 413 | gzFile fd; |
| 414 | |
| 415 | sprintf(mode, "wb%d", compression); |
| 416 | if (!strcmp(filename, "-")) { |
| 417 | fd = gzdopen(1, mode); |
| 418 | return((void *) fd); |
| 419 | } |
| 420 | |
| 421 | if (!strncmp(filename, "file://localhost", 16)) |
| 422 | path = &filename[16]; |
| 423 | else if (!strncmp(filename, "file:///", 8)) |
| 424 | path = &filename[8]; |
| 425 | else |
| 426 | path = filename; |
| 427 | |
| 428 | if (path == NULL) |
| 429 | return(NULL); |
| 430 | |
| 431 | fd = gzopen(path, mode); |
| 432 | return((void *) fd); |
| 433 | } |
| 434 | |
| 435 | /** |
| 436 | * xmlGzfileRead: |
| 437 | * @context: the I/O context |
| 438 | * @buffer: where to drop data |
| 439 | * @len: number of bytes to write |
| 440 | * |
| 441 | * Read @len bytes to @buffer from the compressed I/O channel. |
| 442 | * |
| 443 | * Returns the number of bytes written |
| 444 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 445 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 446 | xmlGzfileRead (void * context, char * buffer, int len) { |
| 447 | return(gzread((gzFile) context, &buffer[0], len)); |
| 448 | } |
| 449 | |
| 450 | /** |
| 451 | * xmlGzfileWrite: |
| 452 | * @context: the I/O context |
| 453 | * @buffer: where to drop data |
| 454 | * @len: number of bytes to write |
| 455 | * |
| 456 | * Write @len bytes from @buffer to the compressed I/O channel. |
| 457 | * |
| 458 | * Returns the number of bytes written |
| 459 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 460 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 461 | xmlGzfileWrite (void * context, const char * buffer, int len) { |
| 462 | return(gzwrite((gzFile) context, (char *) &buffer[0], len)); |
| 463 | } |
| 464 | |
| 465 | /** |
| 466 | * xmlGzfileClose: |
| 467 | * @context: the I/O context |
| 468 | * |
| 469 | * Close a compressed I/O channel |
| 470 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 471 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 472 | xmlGzfileClose (void * context) { |
| 473 | gzclose((gzFile) context); |
| 474 | } |
| 475 | #endif /* HAVE_ZLIB_H */ |
| 476 | |
| 477 | #ifdef LIBXML_HTTP_ENABLED |
| 478 | /************************************************************************ |
| 479 | * * |
| 480 | * I/O for HTTP file accesses * |
| 481 | * * |
| 482 | ************************************************************************/ |
| 483 | /** |
| 484 | * xmlIOHTTPMatch: |
| 485 | * @filename: the URI for matching |
| 486 | * |
| 487 | * check if the URI matches an HTTP one |
| 488 | * |
| 489 | * Returns 1 if matches, 0 otherwise |
| 490 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 491 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 492 | xmlIOHTTPMatch (const char *filename) { |
| 493 | if (!strncmp(filename, "http://", 7)) |
| 494 | return(1); |
| 495 | return(0); |
| 496 | } |
| 497 | |
| 498 | /** |
| 499 | * xmlIOHTTPOpen: |
| 500 | * @filename: the URI for matching |
| 501 | * |
| 502 | * open an HTTP I/O channel |
| 503 | * |
| 504 | * Returns an I/O context or NULL in case of error |
| 505 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 506 | static void * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 507 | xmlIOHTTPOpen (const char *filename) { |
| 508 | return(xmlNanoHTTPOpen(filename, NULL)); |
| 509 | } |
| 510 | |
| 511 | /** |
| 512 | * xmlIOHTTPRead: |
| 513 | * @context: the I/O context |
| 514 | * @buffer: where to drop data |
| 515 | * @len: number of bytes to write |
| 516 | * |
| 517 | * Read @len bytes to @buffer from the I/O channel. |
| 518 | * |
| 519 | * Returns the number of bytes written |
| 520 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 521 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 522 | xmlIOHTTPRead(void * context, char * buffer, int len) { |
| 523 | return(xmlNanoHTTPRead(context, &buffer[0], len)); |
| 524 | } |
| 525 | |
| 526 | /** |
| 527 | * xmlIOHTTPClose: |
| 528 | * @context: the I/O context |
| 529 | * |
| 530 | * Close an HTTP I/O channel |
| 531 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 532 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 533 | xmlIOHTTPClose (void * context) { |
| 534 | xmlNanoHTTPClose(context); |
| 535 | } |
| 536 | #endif /* LIBXML_HTTP_ENABLED */ |
| 537 | |
| 538 | #ifdef LIBXML_FTP_ENABLED |
| 539 | /************************************************************************ |
| 540 | * * |
| 541 | * I/O for FTP file accesses * |
| 542 | * * |
| 543 | ************************************************************************/ |
| 544 | /** |
| 545 | * xmlIOFTPMatch: |
| 546 | * @filename: the URI for matching |
| 547 | * |
| 548 | * check if the URI matches an FTP one |
| 549 | * |
| 550 | * Returns 1 if matches, 0 otherwise |
| 551 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 552 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 553 | xmlIOFTPMatch (const char *filename) { |
| 554 | if (!strncmp(filename, "ftp://", 6)) |
| 555 | return(1); |
| 556 | return(0); |
| 557 | } |
| 558 | |
| 559 | /** |
| 560 | * xmlIOFTPOpen: |
| 561 | * @filename: the URI for matching |
| 562 | * |
| 563 | * open an FTP I/O channel |
| 564 | * |
| 565 | * Returns an I/O context or NULL in case of error |
| 566 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 567 | static void * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 568 | xmlIOFTPOpen (const char *filename) { |
| 569 | return(xmlNanoFTPOpen(filename)); |
| 570 | } |
| 571 | |
| 572 | /** |
| 573 | * xmlIOFTPRead: |
| 574 | * @context: the I/O context |
| 575 | * @buffer: where to drop data |
| 576 | * @len: number of bytes to write |
| 577 | * |
| 578 | * Read @len bytes to @buffer from the I/O channel. |
| 579 | * |
| 580 | * Returns the number of bytes written |
| 581 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 582 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 583 | xmlIOFTPRead(void * context, char * buffer, int len) { |
| 584 | return(xmlNanoFTPRead(context, &buffer[0], len)); |
| 585 | } |
| 586 | |
| 587 | /** |
| 588 | * xmlIOFTPClose: |
| 589 | * @context: the I/O context |
| 590 | * |
| 591 | * Close an FTP I/O channel |
| 592 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 593 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 594 | xmlIOFTPClose (void * context) { |
| 595 | xmlNanoFTPClose(context); |
| 596 | } |
| 597 | #endif /* LIBXML_FTP_ENABLED */ |
| 598 | |
| 599 | |
| 600 | /** |
| 601 | * xmlRegisterInputCallbacks: |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 602 | * @matchFunc: the xmlInputMatchCallback |
| 603 | * @openFunc: the xmlInputOpenCallback |
| 604 | * @readFunc: the xmlInputReadCallback |
| 605 | * @closeFunc: the xmlInputCloseCallback |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 606 | * |
| 607 | * Register a new set of I/O callback for handling parser input. |
| 608 | * |
| 609 | * Returns the registered handler number or -1 in case of error |
| 610 | */ |
| 611 | int |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 612 | xmlRegisterInputCallbacks(xmlInputMatchCallback matchFunc, |
| 613 | xmlInputOpenCallback openFunc, xmlInputReadCallback readFunc, |
| 614 | xmlInputCloseCallback closeFunc) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 615 | if (xmlInputCallbackNr >= MAX_INPUT_CALLBACK) { |
| 616 | return(-1); |
| 617 | } |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 618 | xmlInputCallbackTable[xmlInputCallbackNr].matchcallback = matchFunc; |
| 619 | xmlInputCallbackTable[xmlInputCallbackNr].opencallback = openFunc; |
| 620 | xmlInputCallbackTable[xmlInputCallbackNr].readcallback = readFunc; |
| 621 | xmlInputCallbackTable[xmlInputCallbackNr].closecallback = closeFunc; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 622 | return(xmlInputCallbackNr++); |
| 623 | } |
| 624 | |
| 625 | /** |
| 626 | * xmlRegisterOutputCallbacks: |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 627 | * @matchFunc: the xmlOutputMatchCallback |
| 628 | * @openFunc: the xmlOutputOpenCallback |
| 629 | * @writeFunc: the xmlOutputWriteCallback |
| 630 | * @closeFunc: the xmlOutputCloseCallback |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 631 | * |
| 632 | * Register a new set of I/O callback for handling output. |
| 633 | * |
| 634 | * Returns the registered handler number or -1 in case of error |
| 635 | */ |
| 636 | int |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 637 | xmlRegisterOutputCallbacks(xmlOutputMatchCallback matchFunc, |
| 638 | xmlOutputOpenCallback openFunc, xmlOutputWriteCallback writeFunc, |
| 639 | xmlOutputCloseCallback closeFunc) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 640 | if (xmlOutputCallbackNr >= MAX_INPUT_CALLBACK) { |
| 641 | return(-1); |
| 642 | } |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 643 | xmlOutputCallbackTable[xmlOutputCallbackNr].matchcallback = matchFunc; |
| 644 | xmlOutputCallbackTable[xmlOutputCallbackNr].opencallback = openFunc; |
| 645 | xmlOutputCallbackTable[xmlOutputCallbackNr].writecallback = writeFunc; |
| 646 | xmlOutputCallbackTable[xmlOutputCallbackNr].closecallback = closeFunc; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 647 | return(xmlOutputCallbackNr++); |
| 648 | } |
| 649 | |
| 650 | /** |
| 651 | * xmlRegisterDefaultInputCallbacks: |
| 652 | * |
| 653 | * Registers the default compiled-in I/O handlers. |
| 654 | */ |
| 655 | void |
| 656 | #ifdef VMS |
| 657 | xmlRegisterDefInputCallbacks |
| 658 | #else |
| 659 | xmlRegisterDefaultInputCallbacks |
| 660 | #endif |
| 661 | (void) { |
| 662 | if (xmlInputCallbackInitialized) |
| 663 | return; |
| 664 | |
| 665 | xmlRegisterInputCallbacks(xmlFileMatch, xmlFileOpen, |
| 666 | xmlFileRead, xmlFileClose); |
| 667 | #ifdef HAVE_ZLIB_H |
| 668 | xmlRegisterInputCallbacks(xmlGzfileMatch, xmlGzfileOpen, |
| 669 | xmlGzfileRead, xmlGzfileClose); |
| 670 | #endif /* HAVE_ZLIB_H */ |
| 671 | |
| 672 | #ifdef LIBXML_HTTP_ENABLED |
| 673 | xmlRegisterInputCallbacks(xmlIOHTTPMatch, xmlIOHTTPOpen, |
| 674 | xmlIOHTTPRead, xmlIOHTTPClose); |
| 675 | #endif /* LIBXML_HTTP_ENABLED */ |
| 676 | |
| 677 | #ifdef LIBXML_FTP_ENABLED |
| 678 | xmlRegisterInputCallbacks(xmlIOFTPMatch, xmlIOFTPOpen, |
| 679 | xmlIOFTPRead, xmlIOFTPClose); |
| 680 | #endif /* LIBXML_FTP_ENABLED */ |
| 681 | xmlInputCallbackInitialized = 1; |
| 682 | } |
| 683 | |
| 684 | /** |
| 685 | * xmlRegisterDefaultOutputCallbacks: |
| 686 | * |
| 687 | * Registers the default compiled-in I/O handlers. |
| 688 | */ |
| 689 | void |
| 690 | #ifdef VMS |
| 691 | xmlRegisterDefOutputCallbacks |
| 692 | #else |
| 693 | xmlRegisterDefaultOutputCallbacks |
| 694 | #endif |
| 695 | (void) { |
| 696 | if (xmlOutputCallbackInitialized) |
| 697 | return; |
| 698 | |
| 699 | xmlRegisterOutputCallbacks(xmlFileMatch, xmlFileOpenW, |
| 700 | xmlFileWrite, xmlFileClose); |
| 701 | /********************************* |
| 702 | No way a-priori to distinguish between gzipped files from |
| 703 | uncompressed ones except opening if existing then closing |
| 704 | and saving with same compression ratio ... a pain. |
| 705 | |
| 706 | #ifdef HAVE_ZLIB_H |
| 707 | xmlRegisterOutputCallbacks(xmlGzfileMatch, xmlGzfileOpen, |
| 708 | xmlGzfileWrite, xmlGzfileClose); |
| 709 | #endif |
| 710 | No HTTP PUT support yet, patches welcome |
| 711 | |
| 712 | #ifdef LIBXML_HTTP_ENABLED |
| 713 | xmlRegisterOutputCallbacks(xmlIOHTTPMatch, xmlIOHTTPOpen, |
| 714 | xmlIOHTTPWrite, xmlIOHTTPClose); |
| 715 | #endif |
| 716 | |
| 717 | Nor FTP PUT .... |
| 718 | #ifdef LIBXML_FTP_ENABLED |
| 719 | xmlRegisterOutputCallbacks(xmlIOFTPMatch, xmlIOFTPOpen, |
| 720 | xmlIOFTPWrite, xmlIOFTPClose); |
| 721 | #endif |
| 722 | **********************************/ |
| 723 | xmlOutputCallbackInitialized = 1; |
| 724 | } |
| 725 | |
| 726 | /** |
| 727 | * xmlAllocParserInputBuffer: |
| 728 | * @enc: the charset encoding if known |
| 729 | * |
| 730 | * Create a buffered parser input for progressive parsing |
| 731 | * |
| 732 | * Returns the new parser input or NULL |
| 733 | */ |
| 734 | xmlParserInputBufferPtr |
| 735 | xmlAllocParserInputBuffer(xmlCharEncoding enc) { |
| 736 | xmlParserInputBufferPtr ret; |
| 737 | |
| 738 | ret = (xmlParserInputBufferPtr) xmlMalloc(sizeof(xmlParserInputBuffer)); |
| 739 | if (ret == NULL) { |
| 740 | xmlGenericError(xmlGenericErrorContext, |
| 741 | "xmlAllocParserInputBuffer : out of memory!\n"); |
| 742 | return(NULL); |
| 743 | } |
| 744 | memset(ret, 0, (size_t) sizeof(xmlParserInputBuffer)); |
| 745 | ret->buffer = xmlBufferCreate(); |
| 746 | if (ret->buffer == NULL) { |
| 747 | xmlFree(ret); |
| 748 | return(NULL); |
| 749 | } |
| 750 | ret->buffer->alloc = XML_BUFFER_ALLOC_DOUBLEIT; |
| 751 | ret->encoder = xmlGetCharEncodingHandler(enc); |
| 752 | if (ret->encoder != NULL) |
| 753 | ret->raw = xmlBufferCreate(); |
| 754 | else |
| 755 | ret->raw = NULL; |
| 756 | ret->readcallback = NULL; |
| 757 | ret->closecallback = NULL; |
| 758 | ret->context = NULL; |
| 759 | |
| 760 | return(ret); |
| 761 | } |
| 762 | |
| 763 | /** |
| 764 | * xmlAllocOutputBuffer: |
| 765 | * @encoder: the encoding converter or NULL |
| 766 | * |
| 767 | * Create a buffered parser output |
| 768 | * |
| 769 | * Returns the new parser output or NULL |
| 770 | */ |
| 771 | xmlOutputBufferPtr |
| 772 | xmlAllocOutputBuffer(xmlCharEncodingHandlerPtr encoder) { |
| 773 | xmlOutputBufferPtr ret; |
| 774 | |
| 775 | ret = (xmlOutputBufferPtr) xmlMalloc(sizeof(xmlOutputBuffer)); |
| 776 | if (ret == NULL) { |
| 777 | xmlGenericError(xmlGenericErrorContext, |
| 778 | "xmlAllocOutputBuffer : out of memory!\n"); |
| 779 | return(NULL); |
| 780 | } |
| 781 | memset(ret, 0, (size_t) sizeof(xmlOutputBuffer)); |
| 782 | ret->buffer = xmlBufferCreate(); |
| 783 | if (ret->buffer == NULL) { |
| 784 | xmlFree(ret); |
| 785 | return(NULL); |
| 786 | } |
| 787 | ret->buffer->alloc = XML_BUFFER_ALLOC_DOUBLEIT; |
| 788 | ret->encoder = encoder; |
| 789 | if (encoder != NULL) { |
| 790 | ret->conv = xmlBufferCreateSize(4000); |
| 791 | /* |
| 792 | * This call is designed to initiate the encoder state |
| 793 | */ |
| 794 | xmlCharEncOutFunc(encoder, ret->conv, NULL); |
| 795 | } else |
| 796 | ret->conv = NULL; |
| 797 | ret->writecallback = NULL; |
| 798 | ret->closecallback = NULL; |
| 799 | ret->context = NULL; |
| 800 | ret->written = 0; |
| 801 | |
| 802 | return(ret); |
| 803 | } |
| 804 | |
| 805 | /** |
| 806 | * xmlFreeParserInputBuffer: |
| 807 | * @in: a buffered parser input |
| 808 | * |
| 809 | * Free up the memory used by a buffered parser input |
| 810 | */ |
| 811 | void |
| 812 | xmlFreeParserInputBuffer(xmlParserInputBufferPtr in) { |
| 813 | if (in->raw) { |
| 814 | xmlBufferFree(in->raw); |
| 815 | in->raw = NULL; |
| 816 | } |
| 817 | if (in->encoder != NULL) { |
| 818 | xmlCharEncCloseFunc(in->encoder); |
| 819 | } |
| 820 | if (in->closecallback != NULL) { |
| 821 | in->closecallback(in->context); |
| 822 | } |
| 823 | if (in->buffer != NULL) { |
| 824 | xmlBufferFree(in->buffer); |
| 825 | in->buffer = NULL; |
| 826 | } |
| 827 | |
Daniel Veillard | 48b2f89 | 2001-02-25 16:11:03 +0000 | [diff] [blame] | 828 | MEM_CLEANUP(in, (size_t) sizeof(xmlParserInputBuffer)); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 829 | xmlFree(in); |
| 830 | } |
| 831 | |
| 832 | /** |
| 833 | * xmlOutputBufferClose: |
| 834 | * @out: a buffered output |
| 835 | * |
| 836 | * flushes and close the output I/O channel |
| 837 | * and free up all the associated resources |
| 838 | * |
| 839 | * Returns the number of byte written or -1 in case of error. |
| 840 | */ |
| 841 | int |
| 842 | xmlOutputBufferClose(xmlOutputBufferPtr out) { |
| 843 | int written; |
| 844 | |
| 845 | if (out == NULL) |
| 846 | return(-1); |
| 847 | if (out->writecallback != NULL) |
| 848 | xmlOutputBufferFlush(out); |
| 849 | if (out->closecallback != NULL) { |
| 850 | out->closecallback(out->context); |
| 851 | } |
| 852 | written = out->written; |
| 853 | if (out->conv) { |
| 854 | xmlBufferFree(out->conv); |
| 855 | out->conv = NULL; |
| 856 | } |
| 857 | if (out->encoder != NULL) { |
| 858 | xmlCharEncCloseFunc(out->encoder); |
| 859 | } |
| 860 | if (out->buffer != NULL) { |
| 861 | xmlBufferFree(out->buffer); |
| 862 | out->buffer = NULL; |
| 863 | } |
| 864 | |
Daniel Veillard | 48b2f89 | 2001-02-25 16:11:03 +0000 | [diff] [blame] | 865 | MEM_CLEANUP(out, (size_t) sizeof(xmlOutputBuffer)); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 866 | xmlFree(out); |
| 867 | return(written); |
| 868 | } |
| 869 | |
| 870 | /** |
| 871 | * xmlParserInputBufferCreateFilename: |
| 872 | * @URI: a C string containing the URI or filename |
| 873 | * @enc: the charset encoding if known |
| 874 | * |
| 875 | * Create a buffered parser input for the progressive parsing of a file |
| 876 | * If filename is "-' then we use stdin as the input. |
| 877 | * Automatic support for ZLIB/Compress compressed document is provided |
| 878 | * by default if found at compile-time. |
| 879 | * Do an encoding check if enc == XML_CHAR_ENCODING_NONE |
| 880 | * |
| 881 | * Returns the new parser input or NULL |
| 882 | */ |
| 883 | xmlParserInputBufferPtr |
| 884 | #ifdef VMS |
| 885 | xmlParserInputBufferCreateFname |
| 886 | #else |
| 887 | xmlParserInputBufferCreateFilename |
| 888 | #endif |
| 889 | (const char *URI, xmlCharEncoding enc) { |
| 890 | xmlParserInputBufferPtr ret; |
| 891 | int i; |
| 892 | void *context = NULL; |
| 893 | |
| 894 | if (xmlInputCallbackInitialized == 0) |
| 895 | xmlRegisterDefaultInputCallbacks(); |
| 896 | |
| 897 | if (URI == NULL) return(NULL); |
| 898 | |
| 899 | /* |
| 900 | * Try to find one of the input accept method accepting taht scheme |
| 901 | * Go in reverse to give precedence to user defined handlers. |
| 902 | */ |
| 903 | for (i = xmlInputCallbackNr - 1;i >= 0;i--) { |
| 904 | if ((xmlInputCallbackTable[i].matchcallback != NULL) && |
| 905 | (xmlInputCallbackTable[i].matchcallback(URI) != 0)) { |
| 906 | context = xmlInputCallbackTable[i].opencallback(URI); |
| 907 | if (context != NULL) |
| 908 | break; |
| 909 | } |
| 910 | } |
| 911 | if (context == NULL) { |
| 912 | return(NULL); |
| 913 | } |
| 914 | |
| 915 | /* |
| 916 | * Allocate the Input buffer front-end. |
| 917 | */ |
| 918 | ret = xmlAllocParserInputBuffer(enc); |
| 919 | if (ret != NULL) { |
| 920 | ret->context = context; |
| 921 | ret->readcallback = xmlInputCallbackTable[i].readcallback; |
| 922 | ret->closecallback = xmlInputCallbackTable[i].closecallback; |
| 923 | } |
| 924 | return(ret); |
| 925 | } |
| 926 | |
| 927 | /** |
| 928 | * xmlOutputBufferCreateFilename: |
| 929 | * @URI: a C string containing the URI or filename |
| 930 | * @encoder: the encoding converter or NULL |
| 931 | * @compression: the compression ration (0 none, 9 max). |
| 932 | * |
| 933 | * Create a buffered output for the progressive saving of a file |
| 934 | * If filename is "-' then we use stdout as the output. |
| 935 | * Automatic support for ZLIB/Compress compressed document is provided |
| 936 | * by default if found at compile-time. |
| 937 | * TODO: currently if compression is set, the library only support |
| 938 | * writing to a local file. |
| 939 | * |
| 940 | * Returns the new output or NULL |
| 941 | */ |
| 942 | xmlOutputBufferPtr |
| 943 | xmlOutputBufferCreateFilename(const char *URI, |
| 944 | xmlCharEncodingHandlerPtr encoder, |
| 945 | int compression) { |
| 946 | xmlOutputBufferPtr ret; |
| 947 | int i; |
| 948 | void *context = NULL; |
| 949 | |
| 950 | if (xmlOutputCallbackInitialized == 0) |
| 951 | xmlRegisterDefaultOutputCallbacks(); |
| 952 | |
| 953 | if (URI == NULL) return(NULL); |
| 954 | |
| 955 | #ifdef HAVE_ZLIB_H |
| 956 | if ((compression > 0) && (compression <= 9)) { |
| 957 | context = xmlGzfileOpenW(URI, compression); |
| 958 | if (context != NULL) { |
| 959 | ret = xmlAllocOutputBuffer(encoder); |
| 960 | if (ret != NULL) { |
| 961 | ret->context = context; |
| 962 | ret->writecallback = xmlGzfileWrite; |
| 963 | ret->closecallback = xmlGzfileClose; |
| 964 | } |
| 965 | return(ret); |
| 966 | } |
| 967 | } |
| 968 | #endif |
| 969 | |
| 970 | /* |
| 971 | * Try to find one of the output accept method accepting taht scheme |
| 972 | * Go in reverse to give precedence to user defined handlers. |
| 973 | */ |
| 974 | for (i = xmlOutputCallbackNr - 1;i >= 0;i--) { |
| 975 | if ((xmlOutputCallbackTable[i].matchcallback != NULL) && |
| 976 | (xmlOutputCallbackTable[i].matchcallback(URI) != 0)) { |
| 977 | context = xmlOutputCallbackTable[i].opencallback(URI); |
| 978 | if (context != NULL) |
| 979 | break; |
| 980 | } |
| 981 | } |
| 982 | if (context == NULL) { |
| 983 | return(NULL); |
| 984 | } |
| 985 | |
| 986 | /* |
| 987 | * Allocate the Output buffer front-end. |
| 988 | */ |
| 989 | ret = xmlAllocOutputBuffer(encoder); |
| 990 | if (ret != NULL) { |
| 991 | ret->context = context; |
| 992 | ret->writecallback = xmlOutputCallbackTable[i].writecallback; |
| 993 | ret->closecallback = xmlOutputCallbackTable[i].closecallback; |
| 994 | } |
| 995 | return(ret); |
| 996 | } |
| 997 | |
| 998 | /** |
| 999 | * xmlParserInputBufferCreateFile: |
| 1000 | * @file: a FILE* |
| 1001 | * @enc: the charset encoding if known |
| 1002 | * |
| 1003 | * Create a buffered parser input for the progressive parsing of a FILE * |
| 1004 | * buffered C I/O |
| 1005 | * |
| 1006 | * Returns the new parser input or NULL |
| 1007 | */ |
| 1008 | xmlParserInputBufferPtr |
| 1009 | xmlParserInputBufferCreateFile(FILE *file, xmlCharEncoding enc) { |
| 1010 | xmlParserInputBufferPtr ret; |
| 1011 | |
| 1012 | if (xmlInputCallbackInitialized == 0) |
| 1013 | xmlRegisterDefaultInputCallbacks(); |
| 1014 | |
| 1015 | if (file == NULL) return(NULL); |
| 1016 | |
| 1017 | ret = xmlAllocParserInputBuffer(enc); |
| 1018 | if (ret != NULL) { |
| 1019 | ret->context = file; |
| 1020 | ret->readcallback = xmlFileRead; |
| 1021 | ret->closecallback = xmlFileFlush; |
| 1022 | } |
| 1023 | |
| 1024 | return(ret); |
| 1025 | } |
| 1026 | |
| 1027 | /** |
| 1028 | * xmlOutputBufferCreateFile: |
| 1029 | * @file: a FILE* |
| 1030 | * @encoder: the encoding converter or NULL |
| 1031 | * |
| 1032 | * Create a buffered output for the progressive saving to a FILE * |
| 1033 | * buffered C I/O |
| 1034 | * |
| 1035 | * Returns the new parser output or NULL |
| 1036 | */ |
| 1037 | xmlOutputBufferPtr |
| 1038 | xmlOutputBufferCreateFile(FILE *file, xmlCharEncodingHandlerPtr encoder) { |
| 1039 | xmlOutputBufferPtr ret; |
| 1040 | |
| 1041 | if (xmlOutputCallbackInitialized == 0) |
| 1042 | xmlRegisterDefaultOutputCallbacks(); |
| 1043 | |
| 1044 | if (file == NULL) return(NULL); |
| 1045 | |
| 1046 | ret = xmlAllocOutputBuffer(encoder); |
| 1047 | if (ret != NULL) { |
| 1048 | ret->context = file; |
| 1049 | ret->writecallback = xmlFileWrite; |
| 1050 | ret->closecallback = xmlFileFlush; |
| 1051 | } |
| 1052 | |
| 1053 | return(ret); |
| 1054 | } |
| 1055 | |
| 1056 | /** |
| 1057 | * xmlParserInputBufferCreateFd: |
| 1058 | * @fd: a file descriptor number |
| 1059 | * @enc: the charset encoding if known |
| 1060 | * |
| 1061 | * Create a buffered parser input for the progressive parsing for the input |
| 1062 | * from a file descriptor |
| 1063 | * |
| 1064 | * Returns the new parser input or NULL |
| 1065 | */ |
| 1066 | xmlParserInputBufferPtr |
| 1067 | xmlParserInputBufferCreateFd(int fd, xmlCharEncoding enc) { |
| 1068 | xmlParserInputBufferPtr ret; |
| 1069 | |
| 1070 | if (fd < 0) return(NULL); |
| 1071 | |
| 1072 | ret = xmlAllocParserInputBuffer(enc); |
| 1073 | if (ret != NULL) { |
| 1074 | ret->context = (void *) fd; |
| 1075 | ret->readcallback = xmlFdRead; |
| 1076 | ret->closecallback = xmlFdClose; |
| 1077 | } |
| 1078 | |
| 1079 | return(ret); |
| 1080 | } |
| 1081 | |
| 1082 | /** |
| 1083 | * xmlParserInputBufferCreateMem: |
| 1084 | * @mem: the memory input |
| 1085 | * @size: the length of the memory block |
| 1086 | * @enc: the charset encoding if known |
| 1087 | * |
| 1088 | * Create a buffered parser input for the progressive parsing for the input |
| 1089 | * from a memory area. |
| 1090 | * |
| 1091 | * Returns the new parser input or NULL |
| 1092 | */ |
| 1093 | xmlParserInputBufferPtr |
| 1094 | xmlParserInputBufferCreateMem(const char *mem, int size, xmlCharEncoding enc) { |
| 1095 | xmlParserInputBufferPtr ret; |
| 1096 | |
| 1097 | if (size <= 0) return(NULL); |
| 1098 | if (mem == NULL) return(NULL); |
| 1099 | |
| 1100 | ret = xmlAllocParserInputBuffer(enc); |
| 1101 | if (ret != NULL) { |
| 1102 | ret->context = (void *) mem; |
| 1103 | ret->readcallback = (xmlInputReadCallback) xmlNop; |
| 1104 | ret->closecallback = NULL; |
| 1105 | xmlBufferAdd(ret->buffer, (const xmlChar *) mem, size); |
| 1106 | } |
| 1107 | |
| 1108 | return(ret); |
| 1109 | } |
| 1110 | |
| 1111 | /** |
| 1112 | * xmlOutputBufferCreateFd: |
| 1113 | * @fd: a file descriptor number |
| 1114 | * @encoder: the encoding converter or NULL |
| 1115 | * |
| 1116 | * Create a buffered output for the progressive saving |
| 1117 | * to a file descriptor |
| 1118 | * |
| 1119 | * Returns the new parser output or NULL |
| 1120 | */ |
| 1121 | xmlOutputBufferPtr |
| 1122 | xmlOutputBufferCreateFd(int fd, xmlCharEncodingHandlerPtr encoder) { |
| 1123 | xmlOutputBufferPtr ret; |
| 1124 | |
| 1125 | if (fd < 0) return(NULL); |
| 1126 | |
| 1127 | ret = xmlAllocOutputBuffer(encoder); |
| 1128 | if (ret != NULL) { |
| 1129 | ret->context = (void *) fd; |
| 1130 | ret->writecallback = xmlFdWrite; |
| 1131 | ret->closecallback = xmlFdClose; |
| 1132 | } |
| 1133 | |
| 1134 | return(ret); |
| 1135 | } |
| 1136 | |
| 1137 | /** |
| 1138 | * xmlParserInputBufferCreateIO: |
| 1139 | * @ioread: an I/O read function |
| 1140 | * @ioclose: an I/O close function |
| 1141 | * @ioctx: an I/O handler |
| 1142 | * @enc: the charset encoding if known |
| 1143 | * |
| 1144 | * Create a buffered parser input for the progressive parsing for the input |
| 1145 | * from an I/O handler |
| 1146 | * |
| 1147 | * Returns the new parser input or NULL |
| 1148 | */ |
| 1149 | xmlParserInputBufferPtr |
| 1150 | xmlParserInputBufferCreateIO(xmlInputReadCallback ioread, |
| 1151 | xmlInputCloseCallback ioclose, void *ioctx, xmlCharEncoding enc) { |
| 1152 | xmlParserInputBufferPtr ret; |
| 1153 | |
| 1154 | if (ioread == NULL) return(NULL); |
| 1155 | |
| 1156 | ret = xmlAllocParserInputBuffer(enc); |
| 1157 | if (ret != NULL) { |
| 1158 | ret->context = (void *) ioctx; |
| 1159 | ret->readcallback = ioread; |
| 1160 | ret->closecallback = ioclose; |
| 1161 | } |
| 1162 | |
| 1163 | return(ret); |
| 1164 | } |
| 1165 | |
| 1166 | /** |
| 1167 | * xmlOutputBufferCreateIO: |
| 1168 | * @iowrite: an I/O write function |
| 1169 | * @ioclose: an I/O close function |
| 1170 | * @ioctx: an I/O handler |
| 1171 | * @enc: the charset encoding if known |
| 1172 | * |
| 1173 | * Create a buffered output for the progressive saving |
| 1174 | * to an I/O handler |
| 1175 | * |
| 1176 | * Returns the new parser output or NULL |
| 1177 | */ |
| 1178 | xmlOutputBufferPtr |
| 1179 | xmlOutputBufferCreateIO(xmlOutputWriteCallback iowrite, |
| 1180 | xmlOutputCloseCallback ioclose, void *ioctx, |
| 1181 | xmlCharEncodingHandlerPtr encoder) { |
| 1182 | xmlOutputBufferPtr ret; |
| 1183 | |
| 1184 | if (iowrite == NULL) return(NULL); |
| 1185 | |
| 1186 | ret = xmlAllocOutputBuffer(encoder); |
| 1187 | if (ret != NULL) { |
| 1188 | ret->context = (void *) ioctx; |
| 1189 | ret->writecallback = iowrite; |
| 1190 | ret->closecallback = ioclose; |
| 1191 | } |
| 1192 | |
| 1193 | return(ret); |
| 1194 | } |
| 1195 | |
| 1196 | /** |
| 1197 | * xmlParserInputBufferPush: |
| 1198 | * @in: a buffered parser input |
| 1199 | * @len: the size in bytes of the array. |
| 1200 | * @buf: an char array |
| 1201 | * |
| 1202 | * Push the content of the arry in the input buffer |
| 1203 | * This routine handle the I18N transcoding to internal UTF-8 |
| 1204 | * This is used when operating the parser in progressive (push) mode. |
| 1205 | * |
| 1206 | * Returns the number of chars read and stored in the buffer, or -1 |
| 1207 | * in case of error. |
| 1208 | */ |
| 1209 | int |
| 1210 | xmlParserInputBufferPush(xmlParserInputBufferPtr in, |
| 1211 | int len, const char *buf) { |
| 1212 | int nbchars = 0; |
| 1213 | |
| 1214 | if (len < 0) return(0); |
| 1215 | if (in->encoder != NULL) { |
| 1216 | /* |
| 1217 | * Store the data in the incoming raw buffer |
| 1218 | */ |
| 1219 | if (in->raw == NULL) { |
| 1220 | in->raw = xmlBufferCreate(); |
| 1221 | } |
| 1222 | xmlBufferAdd(in->raw, (const xmlChar *) buf, len); |
| 1223 | |
| 1224 | /* |
| 1225 | * convert as much as possible to the parser reading buffer. |
| 1226 | */ |
| 1227 | nbchars = xmlCharEncInFunc(in->encoder, in->buffer, in->raw); |
| 1228 | if (nbchars < 0) { |
| 1229 | xmlGenericError(xmlGenericErrorContext, |
| 1230 | "xmlParserInputBufferPush: encoder error\n"); |
| 1231 | return(-1); |
| 1232 | } |
| 1233 | } else { |
| 1234 | nbchars = len; |
| 1235 | xmlBufferAdd(in->buffer, (xmlChar *) buf, nbchars); |
| 1236 | } |
| 1237 | #ifdef DEBUG_INPUT |
| 1238 | xmlGenericError(xmlGenericErrorContext, |
| 1239 | "I/O: pushed %d chars, buffer %d/%d\n", |
| 1240 | nbchars, in->buffer->use, in->buffer->size); |
| 1241 | #endif |
| 1242 | return(nbchars); |
| 1243 | } |
| 1244 | |
| 1245 | /** |
| 1246 | * xmlParserInputBufferGrow: |
| 1247 | * @in: a buffered parser input |
| 1248 | * @len: indicative value of the amount of chars to read |
| 1249 | * |
| 1250 | * Grow up the content of the input buffer, the old data are preserved |
| 1251 | * This routine handle the I18N transcoding to internal UTF-8 |
| 1252 | * This routine is used when operating the parser in normal (pull) mode |
| 1253 | * |
| 1254 | * TODO: one should be able to remove one extra copy by copying directy |
| 1255 | * onto in->buffer or in->raw |
| 1256 | * |
| 1257 | * Returns the number of chars read and stored in the buffer, or -1 |
| 1258 | * in case of error. |
| 1259 | */ |
| 1260 | int |
| 1261 | xmlParserInputBufferGrow(xmlParserInputBufferPtr in, int len) { |
| 1262 | char *buffer = NULL; |
| 1263 | int res = 0; |
| 1264 | int nbchars = 0; |
| 1265 | int buffree; |
| 1266 | |
| 1267 | if ((len <= MINLEN) && (len != 4)) |
| 1268 | len = MINLEN; |
| 1269 | buffree = in->buffer->size - in->buffer->use; |
| 1270 | if (buffree <= 0) { |
| 1271 | xmlGenericError(xmlGenericErrorContext, |
| 1272 | "xmlParserInputBufferGrow : buffer full !\n"); |
| 1273 | return(0); |
| 1274 | } |
| 1275 | if (len > buffree) |
| 1276 | len = buffree; |
| 1277 | |
| 1278 | buffer = (char *) xmlMalloc((len + 1) * sizeof(char)); |
| 1279 | if (buffer == NULL) { |
| 1280 | xmlGenericError(xmlGenericErrorContext, |
| 1281 | "xmlParserInputBufferGrow : out of memory !\n"); |
| 1282 | return(-1); |
| 1283 | } |
| 1284 | |
| 1285 | /* |
| 1286 | * Call the read method for this I/O type. |
| 1287 | */ |
| 1288 | if (in->readcallback != NULL) { |
| 1289 | res = in->readcallback(in->context, &buffer[0], len); |
| 1290 | } else { |
| 1291 | xmlGenericError(xmlGenericErrorContext, |
| 1292 | "xmlParserInputBufferGrow : no input !\n"); |
| 1293 | xmlFree(buffer); |
| 1294 | return(-1); |
| 1295 | } |
| 1296 | if (res < 0) { |
| 1297 | perror ("read error"); |
| 1298 | xmlFree(buffer); |
| 1299 | return(-1); |
| 1300 | } |
| 1301 | len = res; |
| 1302 | if (in->encoder != NULL) { |
| 1303 | /* |
| 1304 | * Store the data in the incoming raw buffer |
| 1305 | */ |
| 1306 | if (in->raw == NULL) { |
| 1307 | in->raw = xmlBufferCreate(); |
| 1308 | } |
| 1309 | xmlBufferAdd(in->raw, (const xmlChar *) buffer, len); |
| 1310 | |
| 1311 | /* |
| 1312 | * convert as much as possible to the parser reading buffer. |
| 1313 | */ |
| 1314 | nbchars = xmlCharEncInFunc(in->encoder, in->buffer, in->raw); |
| 1315 | if (nbchars < 0) { |
| 1316 | xmlGenericError(xmlGenericErrorContext, |
| 1317 | "xmlParserInputBufferGrow: encoder error\n"); |
| 1318 | return(-1); |
| 1319 | } |
| 1320 | } else { |
| 1321 | nbchars = len; |
| 1322 | buffer[nbchars] = 0; |
| 1323 | xmlBufferAdd(in->buffer, (xmlChar *) buffer, nbchars); |
| 1324 | } |
| 1325 | #ifdef DEBUG_INPUT |
| 1326 | xmlGenericError(xmlGenericErrorContext, |
| 1327 | "I/O: read %d chars, buffer %d/%d\n", |
| 1328 | nbchars, in->buffer->use, in->buffer->size); |
| 1329 | #endif |
| 1330 | xmlFree(buffer); |
| 1331 | return(nbchars); |
| 1332 | } |
| 1333 | |
| 1334 | /** |
| 1335 | * xmlParserInputBufferRead: |
| 1336 | * @in: a buffered parser input |
| 1337 | * @len: indicative value of the amount of chars to read |
| 1338 | * |
| 1339 | * Refresh the content of the input buffer, the old data are considered |
| 1340 | * consumed |
| 1341 | * This routine handle the I18N transcoding to internal UTF-8 |
| 1342 | * |
| 1343 | * Returns the number of chars read and stored in the buffer, or -1 |
| 1344 | * in case of error. |
| 1345 | */ |
| 1346 | int |
| 1347 | xmlParserInputBufferRead(xmlParserInputBufferPtr in, int len) { |
| 1348 | /* xmlBufferEmpty(in->buffer); */ |
| 1349 | if (in->readcallback != NULL) |
| 1350 | return(xmlParserInputBufferGrow(in, len)); |
| 1351 | else |
| 1352 | return(-1); |
| 1353 | } |
| 1354 | |
| 1355 | /** |
| 1356 | * xmlOutputBufferWrite: |
| 1357 | * @out: a buffered parser output |
| 1358 | * @len: the size in bytes of the array. |
| 1359 | * @buf: an char array |
| 1360 | * |
| 1361 | * Write the content of the array in the output I/O buffer |
| 1362 | * This routine handle the I18N transcoding from internal UTF-8 |
| 1363 | * The buffer is lossless, i.e. will store in case of partial |
| 1364 | * or delayed writes. |
| 1365 | * |
| 1366 | * Returns the number of chars immediately written, or -1 |
| 1367 | * in case of error. |
| 1368 | */ |
| 1369 | int |
| 1370 | xmlOutputBufferWrite(xmlOutputBufferPtr out, int len, const char *buf) { |
| 1371 | int nbchars = 0; /* number of chars to output to I/O */ |
| 1372 | int ret; /* return from function call */ |
| 1373 | int written = 0; /* number of char written to I/O so far */ |
| 1374 | int chunk; /* number of byte curreent processed from buf */ |
| 1375 | |
| 1376 | if (len < 0) return(0); |
| 1377 | |
| 1378 | do { |
| 1379 | chunk = len; |
| 1380 | if (chunk > 4 * MINLEN) |
| 1381 | chunk = 4 * MINLEN; |
| 1382 | |
| 1383 | /* |
| 1384 | * first handle encoding stuff. |
| 1385 | */ |
| 1386 | if (out->encoder != NULL) { |
| 1387 | /* |
| 1388 | * Store the data in the incoming raw buffer |
| 1389 | */ |
| 1390 | if (out->conv == NULL) { |
| 1391 | out->conv = xmlBufferCreate(); |
| 1392 | } |
| 1393 | xmlBufferAdd(out->buffer, (const xmlChar *) buf, chunk); |
| 1394 | |
| 1395 | if ((out->buffer->use < MINLEN) && (chunk == len)) |
| 1396 | goto done; |
| 1397 | |
| 1398 | /* |
| 1399 | * convert as much as possible to the parser reading buffer. |
| 1400 | */ |
| 1401 | ret = xmlCharEncOutFunc(out->encoder, out->conv, out->buffer); |
| 1402 | if (ret < 0) { |
| 1403 | xmlGenericError(xmlGenericErrorContext, |
| 1404 | "xmlOutputBufferWrite: encoder error\n"); |
| 1405 | return(-1); |
| 1406 | } |
| 1407 | nbchars = out->conv->use; |
| 1408 | } else { |
| 1409 | xmlBufferAdd(out->buffer, (const xmlChar *) buf, chunk); |
| 1410 | nbchars = out->buffer->use; |
| 1411 | } |
| 1412 | buf += chunk; |
| 1413 | len -= chunk; |
| 1414 | |
| 1415 | if ((nbchars < MINLEN) && (len <= 0)) |
| 1416 | goto done; |
| 1417 | |
| 1418 | if (out->writecallback) { |
| 1419 | /* |
| 1420 | * second write the stuff to the I/O channel |
| 1421 | */ |
| 1422 | if (out->encoder != NULL) { |
| 1423 | ret = out->writecallback(out->context, |
| 1424 | (const char *)out->conv->content, nbchars); |
| 1425 | if (ret >= 0) |
| 1426 | xmlBufferShrink(out->conv, nbchars); |
| 1427 | } else { |
| 1428 | ret = out->writecallback(out->context, |
| 1429 | (const char *)out->buffer->content, nbchars); |
| 1430 | if (ret >= 0) |
| 1431 | xmlBufferShrink(out->buffer, nbchars); |
| 1432 | } |
| 1433 | if (ret < 0) { |
| 1434 | xmlGenericError(xmlGenericErrorContext, |
| 1435 | "I/O: error %d writing %d bytes\n", ret, nbchars); |
| 1436 | return(ret); |
| 1437 | } |
| 1438 | out->written += ret; |
| 1439 | } |
| 1440 | written += nbchars; |
| 1441 | } while (len > 0); |
| 1442 | |
| 1443 | done: |
| 1444 | #ifdef DEBUG_INPUT |
| 1445 | xmlGenericError(xmlGenericErrorContext, |
| 1446 | "I/O: wrote %d chars\n", written); |
| 1447 | #endif |
| 1448 | return(written); |
| 1449 | } |
| 1450 | |
| 1451 | /** |
| 1452 | * xmlOutputBufferWriteString: |
| 1453 | * @out: a buffered parser output |
| 1454 | * @str: a zero terminated C string |
| 1455 | * |
| 1456 | * Write the content of the string in the output I/O buffer |
| 1457 | * This routine handle the I18N transcoding from internal UTF-8 |
| 1458 | * The buffer is lossless, i.e. will store in case of partial |
| 1459 | * or delayed writes. |
| 1460 | * |
| 1461 | * Returns the number of chars immediately written, or -1 |
| 1462 | * in case of error. |
| 1463 | */ |
| 1464 | int |
| 1465 | xmlOutputBufferWriteString(xmlOutputBufferPtr out, const char *str) { |
| 1466 | int len; |
| 1467 | |
| 1468 | if (str == NULL) |
| 1469 | return(-1); |
| 1470 | len = strlen(str); |
| 1471 | |
| 1472 | if (len > 0) |
| 1473 | return(xmlOutputBufferWrite(out, len, str)); |
| 1474 | return(len); |
| 1475 | } |
| 1476 | |
| 1477 | /** |
| 1478 | * xmlOutputBufferFlush: |
| 1479 | * @out: a buffered output |
| 1480 | * |
| 1481 | * flushes the output I/O channel |
| 1482 | * |
| 1483 | * Returns the number of byte written or -1 in case of error. |
| 1484 | */ |
| 1485 | int |
| 1486 | xmlOutputBufferFlush(xmlOutputBufferPtr out) { |
| 1487 | int nbchars = 0, ret = 0; |
| 1488 | |
| 1489 | /* |
| 1490 | * first handle encoding stuff. |
| 1491 | */ |
| 1492 | if ((out->conv != NULL) && (out->encoder != NULL)) { |
| 1493 | /* |
| 1494 | * convert as much as possible to the parser reading buffer. |
| 1495 | */ |
| 1496 | nbchars = xmlCharEncOutFunc(out->encoder, out->conv, out->buffer); |
| 1497 | if (nbchars < 0) { |
| 1498 | xmlGenericError(xmlGenericErrorContext, |
| 1499 | "xmlOutputBufferWrite: encoder error\n"); |
| 1500 | return(-1); |
| 1501 | } |
| 1502 | } |
| 1503 | |
| 1504 | /* |
| 1505 | * second flush the stuff to the I/O channel |
| 1506 | */ |
| 1507 | if ((out->conv != NULL) && (out->encoder != NULL) && |
| 1508 | (out->writecallback != NULL)) { |
| 1509 | ret = out->writecallback(out->context, |
| 1510 | (const char *)out->conv->content, out->conv->use); |
| 1511 | if (ret >= 0) |
| 1512 | xmlBufferShrink(out->conv, ret); |
| 1513 | } else if (out->writecallback != NULL) { |
| 1514 | ret = out->writecallback(out->context, |
| 1515 | (const char *)out->buffer->content, out->buffer->use); |
| 1516 | if (ret >= 0) |
| 1517 | xmlBufferShrink(out->buffer, ret); |
| 1518 | } |
| 1519 | if (ret < 0) { |
| 1520 | xmlGenericError(xmlGenericErrorContext, |
| 1521 | "I/O: error %d flushing %d bytes\n", ret, nbchars); |
| 1522 | return(ret); |
| 1523 | } |
| 1524 | out->written += ret; |
| 1525 | |
| 1526 | #ifdef DEBUG_INPUT |
| 1527 | xmlGenericError(xmlGenericErrorContext, |
| 1528 | "I/O: flushed %d chars\n", ret); |
| 1529 | #endif |
| 1530 | return(ret); |
| 1531 | } |
| 1532 | |
| 1533 | /* |
| 1534 | * xmlParserGetDirectory: |
| 1535 | * @filename: the path to a file |
| 1536 | * |
| 1537 | * lookup the directory for that file |
| 1538 | * |
| 1539 | * Returns a new allocated string containing the directory, or NULL. |
| 1540 | */ |
| 1541 | char * |
| 1542 | xmlParserGetDirectory(const char *filename) { |
| 1543 | char *ret = NULL; |
| 1544 | char dir[1024]; |
| 1545 | char *cur; |
| 1546 | char sep = '/'; |
| 1547 | |
| 1548 | if (xmlInputCallbackInitialized == 0) |
| 1549 | xmlRegisterDefaultInputCallbacks(); |
| 1550 | |
| 1551 | if (filename == NULL) return(NULL); |
| 1552 | #ifdef WIN32 |
| 1553 | sep = '\\'; |
| 1554 | #endif |
| 1555 | |
| 1556 | strncpy(dir, filename, 1023); |
| 1557 | dir[1023] = 0; |
| 1558 | cur = &dir[strlen(dir)]; |
| 1559 | while (cur > dir) { |
| 1560 | if (*cur == sep) break; |
| 1561 | cur --; |
| 1562 | } |
| 1563 | if (*cur == sep) { |
| 1564 | if (cur == dir) dir[1] = 0; |
| 1565 | else *cur = 0; |
| 1566 | ret = xmlMemStrdup(dir); |
| 1567 | } else { |
| 1568 | if (getcwd(dir, 1024) != NULL) { |
| 1569 | dir[1023] = 0; |
| 1570 | ret = xmlMemStrdup(dir); |
| 1571 | } |
| 1572 | } |
| 1573 | return(ret); |
| 1574 | } |
| 1575 | |
| 1576 | /**************************************************************** |
| 1577 | * * |
| 1578 | * External entities loading * |
| 1579 | * * |
| 1580 | ****************************************************************/ |
| 1581 | |
| 1582 | /* |
| 1583 | * xmlDefaultExternalEntityLoader: |
| 1584 | * @URL: the URL for the entity to load |
| 1585 | * @ID: the System ID for the entity to load |
| 1586 | * @ctxt: the context in which the entity is called or NULL |
| 1587 | * |
| 1588 | * By default we don't load external entitites, yet. |
| 1589 | * |
| 1590 | * Returns a new allocated xmlParserInputPtr, or NULL. |
| 1591 | */ |
| 1592 | static |
| 1593 | xmlParserInputPtr |
| 1594 | xmlDefaultExternalEntityLoader(const char *URL, const char *ID, |
| 1595 | xmlParserCtxtPtr ctxt) { |
| 1596 | xmlParserInputPtr ret = NULL; |
| 1597 | |
| 1598 | #ifdef DEBUG_EXTERNAL_ENTITIES |
| 1599 | xmlGenericError(xmlGenericErrorContext, |
| 1600 | "xmlDefaultExternalEntityLoader(%s, xxx)\n", URL); |
| 1601 | #endif |
| 1602 | if (URL == NULL) { |
| 1603 | if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL)) |
| 1604 | ctxt->sax->warning(ctxt, |
| 1605 | "failed to load external entity \"%s\"\n", ID); |
| 1606 | return(NULL); |
| 1607 | } |
| 1608 | ret = xmlNewInputFromFile(ctxt, URL); |
| 1609 | if (ret == NULL) { |
| 1610 | if ((ctxt->sax != NULL) && (ctxt->sax->warning != NULL)) |
| 1611 | ctxt->sax->warning(ctxt, |
| 1612 | "failed to load external entity \"%s\"\n", URL); |
| 1613 | } |
| 1614 | return(ret); |
| 1615 | } |
| 1616 | |
| 1617 | static xmlExternalEntityLoader xmlCurrentExternalEntityLoader = |
| 1618 | xmlDefaultExternalEntityLoader; |
| 1619 | |
| 1620 | /* |
| 1621 | * xmlSetExternalEntityLoader: |
| 1622 | * @f: the new entity resolver function |
| 1623 | * |
| 1624 | * Changes the defaultexternal entity resolver function for the application |
| 1625 | */ |
| 1626 | void |
| 1627 | xmlSetExternalEntityLoader(xmlExternalEntityLoader f) { |
| 1628 | xmlCurrentExternalEntityLoader = f; |
| 1629 | } |
| 1630 | |
| 1631 | /* |
| 1632 | * xmlGetExternalEntityLoader: |
| 1633 | * |
| 1634 | * Get the default external entity resolver function for the application |
| 1635 | * |
| 1636 | * Returns the xmlExternalEntityLoader function pointer |
| 1637 | */ |
| 1638 | xmlExternalEntityLoader |
| 1639 | xmlGetExternalEntityLoader(void) { |
| 1640 | return(xmlCurrentExternalEntityLoader); |
| 1641 | } |
| 1642 | |
| 1643 | /* |
| 1644 | * xmlLoadExternalEntity: |
| 1645 | * @URL: the URL for the entity to load |
| 1646 | * @ID: the System ID for the entity to load |
| 1647 | * @ctxt: the context in which the entity is called or NULL |
| 1648 | * |
| 1649 | * Load an external entity, note that the use of this function for |
| 1650 | * unparsed entities may generate problems |
| 1651 | * TODO: a more generic External entitiy API must be designed |
| 1652 | * |
| 1653 | * Returns the xmlParserInputPtr or NULL |
| 1654 | */ |
| 1655 | xmlParserInputPtr |
| 1656 | xmlLoadExternalEntity(const char *URL, const char *ID, |
| 1657 | xmlParserCtxtPtr ctxt) { |
| 1658 | return(xmlCurrentExternalEntityLoader(URL, ID, ctxt)); |
| 1659 | } |
| 1660 | |