1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598
|
/*
* Explode.xs
* Last Modification: Mon Jun 5 14:13:27 WEST 2006
*
* Copyright (c) 2006 Henrique Dias <hdias@aesbuc.pt>. All rights reserved.
* This module is free software; you can redistribute it and/or modify
* it under the same terms as Perl itself.
*
*/
#ifndef WIN32
#include <unistd.h>
#endif
#ifdef OP_PROTOTYPE
#undef OP_PROTOTYPE
#endif
#define PERL_POLLUTE
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#define BUFFLEN 256
#define TMPBUFFLEN 2*256
#define ISTEXT 70
#define MBXHDRLEN 39
#define WSP 0176
#define JNK 0177
#define PAD 0100
#define DEC(Char) (((Char) - ' ') & 077)
#ifndef isGRAPH
#define isGRAPH(c) (isgraph(c))
#endif
typedef enum answers {NO = 0, MAYBE = 1, YES = 2} answers;
bool ismailbox(unsigned char *line) {
int i = 5, p = 0;
if(strlen(line) < MBXHDRLEN ||
line[0] != 'F' || line[1] != 'r' || line[2] != 'o' ||
line[3] != 'm' || line[4] != 0x20) return FALSE;
while(line[i] == ' ') i++;
p = i;
while(line[i] != '@') {
if(!isGRAPH(line[i])) return FALSE;
i++;
}
if(i-p < 1) return FALSE;
i += 1;
p = i;
while(line[i] != 0x20) {
if(!(isALNUM(line[i]) || line[i] == '_' || line[i] == '.' ||
line[i] == '-')) return FALSE;
i++;
}
if(i-p < 4) return FALSE;
i += 1;
while(line[i] == 0x20) i++;
return((isALPHA(line[i]) && isALPHA(line[i+1]) && isALPHA(line[i+2]) &&
line[i+3] == 0x20 && isALPHA(line[i+4]) && isALPHA(line[i+5]) &&
isALPHA(line[i+6]) && line[i+7] == 0x20 &&
(line[i+8] == 0x20 || isDIGIT(line[i+8])) && isDIGIT(line[i+9]) &&
line[i+10] == 0x20 && isDIGIT(line[i+11]) && isDIGIT(line[i+12]) &&
line[i+13] == ':' && isDIGIT(line[i+14]) && isDIGIT(line[i+15]) &&
line[i+16] == ':' && isDIGIT(line[i+17]) && isDIGIT(line[i+18]) &&
line[i+19] == 0x20 && isDIGIT(line[i+20]) && isDIGIT(line[i+21]) &&
isDIGIT(line[i+22]) && isDIGIT(line[i+23]) && (line[i+24] == 0x0A ||
(line[i+24] == 0x20 && (line[i+25] == '+' || line[i+25] == '-')&&
isDIGIT(line[i+26]) && isDIGIT(line[i+27]) &&
isDIGIT(line[i+28]) && isDIGIT(line[i+29]) &&
line[i+30] == 0x0A))) ? TRUE : FALSE);
}
bool istext(unsigned char *buff, unsigned long l) {
unsigned long i = 0, n = 0;
for(i = 0; i < l; i++)
if(isPRINT(buff[i])) n++;
return(((int)(100*((float)n/(float)l)) > ISTEXT) ? TRUE : FALSE);
}
unsigned char *str_to_lower(unsigned char *string) {
unsigned char *p = string;
while(*p = toLOWER(*p)) *p++;
return string;
}
static char *set_mime_type(unsigned char *buff, unsigned long len, char *base) {
if(!len) return base;
if(istext(buff, len)) {
if(len > 4 && buff[0] == '%' &&
!strnNE((char *)buff+1, "PDF-", 4))
return("application/pdf");
str_to_lower(buff);
if(len > 5) {
if(instr(buff, "<?xml ")) return("text/xml");
if(instr(buff, "<html>")) return("text/html");
}
return((!strnNE(base, "text/", 5)) ? base : "text/plain");
} else {
if(len > 1 && buff[0] == 0x4d && buff[1] == 0x5a)
return("application/octet-stream");
if(len > 2 && buff[0] == 0x47 && buff[1] == 0x49 && buff[2] == 0x46)
return("image/gif");
if(len > 3) {
if(buff[0] == 0x89 && buff[1] == 0x50 &&
buff[2] == 0x4e && buff[3] == 0x47)
return("image/png");
if(buff[0] == 0x50 && buff[1] == 0x4b &&
buff[2] == 0x03 && buff[3] == 0x04)
return("application/x-zip-compressed");
}
if(len > 4 && buff[0] == '%' &&
strnEQ((char *)buff+1, "PDF-", 4))
return("application/pdf");
if(len > 7 && buff[0] == 0xd0 && buff[1] == 0xcf &&
buff[2] == 0x11 && buff[3] == 0xe0 &&
buff[4] == 0xa1 && buff[5] == 0xb1 &&
buff[6] == 0x1a && buff[7] == 0xe1)
return("application/msword");
if(len > 9 && buff[0] == 0xff && buff[1] == 0xd8 &&
buff[2] == 0xff && buff[3] == 0xe0 &&
strnEQ((char *)&buff[6], "JFIF", 4))
return("image/jpeg");
if(len > 15 && buff[0] == 0x42 && buff[1] == 0x4d &&
buff[5] == 0x00 && buff[10] == 0x36 &&
buff[15] == 0x28)
return("image/bmp");
return(base ? base : "");
}
}
unsigned char *_rfc822_qprint(unsigned char *src,
unsigned long srcl, unsigned long *len) {
unsigned char *ret = NULL;
unsigned char *d = NULL;
unsigned char *t = NULL;
unsigned char *s = src;
unsigned char c, e;
New(1, ret, (size_t) srcl + 1, unsigned char);
d = ret;
t = d;
*len = 0;
while(((unsigned long) (s - src)) < srcl) {
switch(c = *s++) {
case '=':
if(((unsigned long) (s - src)) < srcl)
switch (c = *s++) {
case '\0':
*d++ = '=';
s--;
break;
case '\015':
if((((unsigned long) (s - src)) < srcl) && (*s == '\012')) s++;
case '\012':
t = d;
break;
default:
if(!(isxdigit(c) && (((unsigned long) (s - src)) < srcl) &&
(e = *s++) && isxdigit(e))) {
// Safefree(ret);
// return NULL;
*d++ = '=';
s -= 2;
if(*s == '=') s++;
t = d;
break;
}
if(isDIGIT(c)) c -= '0';
else c -= (isUPPER(c) ? 'A' - 10 : 'a' - 10);
if(isDIGIT(e)) e -= '0';
else e -= (isUPPER(e) ? 'A' - 10 : 'a' - 10);
*d++ = e + (c << 4);
t = d;
break;
} else {
*d++ = '=';
t = d;
}
break;
case ' ':
*d++ = c;
break;
case '\015':
case '\012':
d = t;
default:
*d++ = c;
t = d;
}
}
*d = '\0';
*len = d - ret;
return ret;
}
/*
* From imap-2004a/src/c-client/rfc822.c
* Author: Mark Crispin
* Copyright 1988-2004 University of Washington.
*/
void *_rfc822_base64(unsigned char *src, unsigned long srcl,
unsigned long *len) {
char c;
char *d;
int e;
void *ret;
static unsigned char decode[256] = {
WSP,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,WSP,WSP,JNK,WSP,WSP,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
WSP,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,076,JNK,JNK,JNK,077,
064,065,066,067,070,071,072,073,074,075,JNK,JNK,JNK,PAD,JNK,JNK,
JNK,000,001,002,003,004,005,006,007,010,011,012,013,014,015,016,
017,020,021,022,023,024,025,026,027,030,031,JNK,JNK,JNK,JNK,JNK,
JNK,032,033,034,035,036,037,040,041,042,043,044,045,046,047,050,
051,052,053,054,055,056,057,060,061,062,063,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,
JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK,JNK
};
New(0, ret, (size_t) (*len = 4 + ((srcl * 3) / 4)), void);
d = (char *)ret;
memset(ret,0,(size_t)*len);
*len = 0;
for(e = 0; srcl--; )
switch(c = decode[*src++]) {
default:
switch (e++) {
case 0:
*d = c << 2;
break;
case 1:
*d++ |= c >> 4;
*d = c << 4;
break;
case 2:
*d++ |= c >> 2;
*d = c << 6;
break;
case 3:
*d++ |= c;
e = 0;
break;
}
break;
case WSP:
break;
case PAD:
switch (e++) {
case 3:
for(; srcl; --srcl)
switch (decode[*src++]) {
case WSP: case JNK: case PAD:
break;
default:
warn("Possible data truncation in _rfc822_base64(): %.80s", (char *)src-1);
srcl = 1;
break;
}
break;
case 2:
if(srcl && (*src == '=')) break;
default:
Safefree(ret);
return NULL;
}
break;
case JNK:
Safefree(ret);
return NULL;
}
*len = d - (char *) ret;
return ret;
}
void *uu_decode(char *buff, unsigned long srcl, unsigned long *len) {
char *p;
int n;
void *ret = NULL;
char *d = NULL;
p = buff;
n = DEC(*p);
ret = New(2, ret, (size_t) (*len = n + ((3*srcl-6)/4) + 1), void);
d = (char *)ret;
memset(ret,0,(size_t)*len);
*len = 0;
if(n <= 0) return("");
for(++p; n > 0; p += 4, n -= 3) {
if(n >= 3) {
*d++ = DEC(p[0]) << 2 | DEC (p[1]) >> 4;
*d++ = DEC(p[1]) << 4 | DEC (p[2]) >> 2;
*d++ = DEC(p[2]) << 6 | DEC (p[3]);
} else {
if(n >= 1)
*d++ = DEC(p[0]) << 2 | DEC (p[1]) >> 4;
if(n >= 2)
*d++ = DEC(p[1]) << 4 | DEC (p[2]) >> 2;
}
}
*d = '\0';
*len = d - (char *)ret;
return(ret);
}
void data_cat(char* tmp, char* data,
unsigned long *tmplen, unsigned long len) {
unsigned int i = 0;
for(i = 0; i < len; i++) {
if(*tmplen > TMPBUFFLEN-1) break;
tmp[*tmplen] = data[i];
(*tmplen)++;
}
tmp[*tmplen] = '\0';
}
MODULE = MIME::Explode PACKAGE = MIME::Explode PREFIX = exp_
PROTOTYPES: DISABLE
void
exp_rfc822_qprint(source)
SV *source
PREINIT:
STRLEN srcl;
unsigned long len;
unsigned char *s;
PPCODE:
s = (unsigned char*)SvPV(source, srcl);
if(s = _rfc822_qprint(s, (unsigned long)srcl, &len)) {
XPUSHs(sv_2mortal(newSVpv((char*)s, (STRLEN)len)));
Safefree(s);
}
void
exp_rfc822_base64(source)
SV *source
PREINIT:
STRLEN srcl;
unsigned long len;
unsigned char *s;
PPCODE:
s = (unsigned char*)SvPV(source, srcl);
if(s = _rfc822_base64(s, (unsigned long)srcl, &len)) {
XPUSHs(sv_2mortal(newSVpv((char*)s, (STRLEN)len)));
Safefree(s);
}
void
exp_set_content_type(source, ...)
SV *source
PREINIT:
STRLEN srcl;
unsigned char *s;
char *base = NULL;
char *mt;
PPCODE:
if(items == 2) base = SvPV(ST(1), na);
s = (unsigned char*)SvPV(source, srcl);
mt = set_mime_type(s, (unsigned long)srcl, base);
XPUSHs(sv_2mortal(newSVpv(mt, (STRLEN)strlen(mt))));
void
exp_uu_file(fhs, filename, mode, ...)
SV *fhs;
char *filename;
char *mode;
PREINIT:
PerlIO *fpin = NULL;
PerlIO *fptmp = NULL;
PerlIO *fpout = NULL;
I32 avlen = 0;
AV *av_fhs = (AV*)SvRV(fhs);
HV *hvtypes;
SV *buff_sv = newSV(BUFFLEN);
unsigned long len = 0;
unsigned char *decoded = NULL;
bool verify = TRUE;
bool exclude = FALSE;
bool action = TRUE;
char mimetype[BUFFLEN] = "";
AV *av_ret = newAV();
char tmp[TMPBUFFLEN];
unsigned long tmplen = 0;
PPCODE:
if((avlen = av_len(av_fhs)) != -1) {
fpin = IoIFP(sv_2io(*av_fetch(av_fhs, 0, 0)));
if(avlen == 1)
fptmp = IoIFP(sv_2io(*av_fetch(av_fhs, 1, 0)));
} else
croak("Null Array Reference");
if(items == 4) {
HV *hv = (HV*)SvRV(ST(3));
if(hv_exists(hv, "action", 6)) {
SV **value = hv_fetch(hv, "action", 6, 0);
action = SvIVx(*value) ? TRUE : FALSE;
}
if(hv_exists(hv, "mimetypes", 9)) {
SV **value = hv_fetch(hv, "mimetypes", 9, 0);
hvtypes = (HV*)SvRV(*value);
}
}
if((fpout = PerlIO_open(filename, "wb")) == NULL)
croak("Failed to open file \"%s\"", filename);
while(sv_gets(buff_sv, fpin, 0)) {
STRLEN l = SvCUR(buff_sv);
char *line = SvGROW(buff_sv, l);
if(line[l-1] != 0x0a) break;
if(fptmp != NULL) PerlIO_write(fptmp, line, l);
if(instr(line, "end\n") || line[0] == 0x0a) break;
if(!exclude) {
decoded = uu_decode(line, l, &len);
if(len) PerlIO_write(fpout, decoded, len);
}
if(verify) {
if(line[0] == 0x20 || line[0] == 0x0a || line[0] == 0x0d) {
// nothing to do...
} else {
data_cat(tmp, decoded, &tmplen, len);
if(tmplen >= TMPBUFFLEN) {
strcpy(mimetype, set_mime_type(tmp, tmplen, mimetype));
exclude = hv_exists(hvtypes, mimetype, strlen(mimetype)) ? (action ? FALSE : TRUE) :
hv_iterinit(hvtypes) ? (action ? TRUE : FALSE) : (action ? FALSE : TRUE);
verify = FALSE;
}
}
}
if (decoded) {
Safefree(decoded);
decoded = NULL;
len = 0;
}
}
PerlIO_close(fpout);
if(verify) {
strcpy(mimetype, set_mime_type(tmp, tmplen, mimetype));
exclude = hv_exists(hvtypes, mimetype, strlen(mimetype)) ? (action ? FALSE : TRUE) :
hv_iterinit(hvtypes) ? (action ? TRUE : FALSE) : (action ? FALSE : TRUE);
}
if(exclude)
if(unlink(filename))
croak("Failed to delete file \"%s\"", filename);
av_push(av_ret, mimetype ? newSVpv(mimetype, 0) : newSVsv(&sv_undef));
av_push(av_ret, newSViv(exclude ? 1 : 0));
XPUSHs(sv_2mortal(newRV_noinc((SV*)av_ret)));
SvREFCNT_dec(buff_sv);
void
exp_decode_content(fhs, encoding="base64", filename, boundary="", ...)
SV *fhs;
char *encoding;
char *filename;
char *boundary;
PREINIT:
PerlIO *fpin = NULL;
PerlIO *fptmp = NULL;
PerlIO *fpout = NULL;
unsigned char *decoded = NULL;
unsigned char *rest = NULL;
SV *buff_sv = newSV(BUFFLEN);
SV *part = newSVsv(&sv_undef);
char mt[BUFFLEN] = "";
bool exclude = FALSE;
bool verify = TRUE;
bool checktype = FALSE;
bool action = TRUE;
bool last = FALSE;
I32 avlen = 0;
HV *hvtypes;
AV *av_ret = newAV();
AV *av_fhs = (AV*)SvRV(fhs);
unsigned long len = 0;
char tmp[TMPBUFFLEN];
unsigned long tmplen = 0;
answers findmbox = NO;
answers endbase64 = NO;
char *mimetype;
PPCODE:
if((avlen = av_len(av_fhs)) != -1) {
fpin = IoIFP(sv_2io(*av_fetch(av_fhs, 0, 0)));
if(avlen == 1)
fptmp = IoIFP(sv_2io(*av_fetch(av_fhs, 1, 0)));
} else
croak("Null Array Reference");
if(items == 5) {
HV *hv = (HV*)SvRV(ST(4));
if(hv_exists(hv, "mimetype", 8)) {
SV **value = hv_fetch(hv, "mimetype", 8, 0);
mimetype = SvPVx(*value, na);
}
if(hv_exists(hv, "checktype", 9)) {
SV **value = hv_fetch(hv, "checktype", 9, 0);
if(SvIVx(*value)) checktype = TRUE;
}
if(hv_exists(hv, "action", 6)) {
SV **value = hv_fetch(hv, "action", 6, 0);
action = SvIVx(*value) ? TRUE : FALSE;
}
if(hv_exists(hv, "mimetypes", 9)) {
SV **value = hv_fetch(hv, "mimetypes", 9, 0);
hvtypes = (HV*)SvRV(*value);
}
if(hv_exists(hv, "mailbox", 7)) {
SV **value = hv_fetch(hv, "mailbox", 7, 0);
if(SvIVx(*value)) findmbox = MAYBE;
}
}
if((fpout = PerlIO_open(filename, "wb")) == NULL)
croak("Failed to open file \"%s\"", filename);
while(!last && sv_gets(buff_sv, fpin, 0)) {
STRLEN l = SvCUR(buff_sv);
char *line = SvGROW(buff_sv, l);
if(fptmp != NULL) PerlIO_write(fptmp, line, l);
if(findmbox == YES) {
if(ismailbox(line)) {
sv_setsv(part, buff_sv);
break;
}
findmbox = MAYBE;
}
if(line[0] == 0x0a && findmbox == MAYBE) {
findmbox = YES;
if(encoding[0] == 'b') continue;
}
if(encoding[0] == 'b') {
if(boundary[0] != '\0' && line[l-1] != 0x0a) break;
if(line[l-2] == '=' && line[l-1] == 0x0a) endbase64 = MAYBE;
}
if(boundary[0] != '\0' && (rest = instr(line, boundary))) {
sv_setpvn(part, rest, strlen(rest));
l -= SvCUR(part);
if(l == 0) break;
line[l] = '\0';
last = TRUE;
} else if(endbase64 == YES && line[0] != 0x0a) {
sv_setpvn(part, line, l);
break;
}
if(!exclude) {
decoded = (encoding[0] == 'q') ?
_rfc822_qprint(line, l, &len) : _rfc822_base64(line, l, &len);
if(len) PerlIO_write(fpout, decoded, len);
}
if(!last) {
if(endbase64 == MAYBE) endbase64 = YES;
if(verify) {
if((encoding[0] == 'b' && line[0] == 0x20) || line[0] == 0x0a || line[0] == 0x0d) {
// nothing to do...
} else {
data_cat(tmp, decoded, &tmplen, len);
if(tmplen >= TMPBUFFLEN) {
strcpy(mt, (checktype) ? set_mime_type(tmp, tmplen, mimetype) : mimetype);
exclude = hv_exists(hvtypes, mt, strlen(mt)) ? (action ? FALSE : TRUE) :
hv_iterinit(hvtypes) ? (action ? TRUE : FALSE) : (action ? FALSE : TRUE);
verify = FALSE;
}
}
}
}
if(decoded) {
Safefree(decoded);
decoded = NULL;
len = 0;
}
}
PerlIO_close(fpout);
if(verify) {
strcpy(mt, (checktype) ? set_mime_type(tmp, tmplen, mimetype) : mimetype);
exclude = hv_exists(hvtypes, mt, strlen(mt)) ? (action ? FALSE : TRUE) :
hv_iterinit(hvtypes) ? (action ? TRUE : FALSE) : (action ? FALSE : TRUE);
}
if(exclude)
if(unlink(filename))
croak("Failed to delete file \"%s\"", filename);
av_push(av_ret, part);
av_push(av_ret, mt ? newSVpv(mt, 0) : newSVsv(&sv_undef));
av_push(av_ret, newSViv(exclude ? 1 : 0));
XPUSHs(sv_2mortal(newRV_noinc((SV*)av_ret)));
SvREFCNT_dec(buff_sv);
|