Annotation of parser3/src/main/pa_common.C, revision 1.255
1.15 paf 1: /** @file
1.16 paf 2: Parser: commonly functions.
3:
1.242 misha 4: Copyright(c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.101 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.16 paf 6:
1.210 paf 7: * BASE64 part
8: * Authors: Michael Zucchi <notzed@ximian.com>
9: * Jeffrey Stedfast <fejj@ximian.com>
10: *
11: * Copyright 2000-2004 Ximian, Inc. (www.ximian.com)
12: *
13: * This program is free software; you can redistribute it and/or modify
14: * it under the terms of the GNU General Public License as published by
15: * the Free Software Foundation; either version 2 of the License, or
16: * (at your option) any later version.
17: *
18: * This program is distributed in the hope that it will be useful,
19: * but WITHOUT ANY WARRANTY; without even the implied warranty of
20: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21: * GNU General Public License for more details.
22: *
23: * You should have received a copy of the GNU General Public License
24: * along with this program; if not, write to the Free Software
25: * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
26: *
27: */
28:
1.255 ! misha 29: static const char * const IDENT_COMMON_C="$Date: 2009-10-06 00:49:28 $";
1.1 paf 30:
31: #include "pa_common.h"
1.4 paf 32: #include "pa_exception.h"
1.154 paf 33: #include "pa_hash.h"
1.14 paf 34: #include "pa_globals.h"
1.154 paf 35: #include "pa_charsets.h"
1.214 paf 36: #include "pa_http.h"
1.223 misha 37: #include "pa_request_charsets.h"
1.237 misha 38: #include "pcre.h"
1.241 misha 39: #include "pa_request.h"
1.98 paf 40:
1.93 paf 41: // some maybe-undefined constants
42:
1.82 paf 43: #ifndef _O_TEXT
44: # define _O_TEXT 0
45: #endif
46: #ifndef _O_BINARY
47: # define _O_BINARY 0
1.47 paf 48: #endif
1.80 paf 49:
1.138 paf 50: #ifdef HAVE_FTRUNCATE
51: # define PA_O_TRUNC 0
52: #else
53: # ifdef _O_TRUNC
54: # define PA_O_TRUNC _O_TRUNC
55: # else
56: # error you must have either ftruncate function or _O_TRUNC bit declared
57: # endif
1.154 paf 58: #endif
1.176 paf 59:
1.154 paf 60: // defines for globals
61:
62: #define FILE_STATUS_NAME "status"
63:
64: // globals
65:
66: const String file_status_name(FILE_STATUS_NAME);
67:
68: // functions
1.127 paf 69:
1.255 ! misha 70: bool capitalized(const char* s){
! 71: bool upper=true;
! 72: for(const char* c=s; *c; c++){
! 73: if(*c != (upper ? toupper((unsigned char)*c) : tolower((unsigned char)*c)))
! 74: return false;
! 75: upper=strchr("-_ ", *c) != 0;
! 76: }
! 77: return true;
! 78: }
! 79:
1.249 misha 80: const char* capitalize(const char* s){
1.255 ! misha 81: if(!s || capitalized(s))
! 82: return s;
! 83:
1.249 misha 84: char* result=pa_strdup(s);
85: if(result){
86: bool upper=true;
87: for(char* c=result; *c; c++){
88: *c=upper ? (char)toupper((unsigned char)*c) : (char)tolower((unsigned char)*c);
89: upper=strchr("-_ ", *c) != 0;
90: }
91: }
92: return (const char*)result;
93: }
94:
1.154 paf 95: void fix_line_breaks(char *str, size_t& length) {
1.87 paf 96: //_asm int 3;
1.154 paf 97: const char* const eob=str+length;
98: char* dest=str;
1.72 parser 99: // fix DOS: \r\n -> \n
100: // fix Macintosh: \r -> \n
1.154 paf 101: char* bol=str;
1.137 paf 102: while(char* eol=(char*)memchr(bol, '\r', eob -bol)) {
1.72 parser 103: size_t len=eol-bol;
104: if(dest!=bol)
1.126 paf 105: memcpy(dest, bol, len);
1.72 parser 106: dest+=len;
1.126 paf 107: *dest++='\n';
1.72 parser 108:
1.126 paf 109: if(&eol[1]<eob && eol[1]=='\n') { // \r, \n = DOS
1.72 parser 110: bol=eol+2;
1.154 paf 111: length--;
1.126 paf 112: } else // \r, not \n = Macintosh
1.72 parser 113: bol=eol+1;
114: }
1.154 paf 115: // last piece without \r
1.72 parser 116: if(dest!=bol)
1.126 paf 117: memcpy(dest, bol, eob-bol);
1.154 paf 118: str[length]=0; // terminating
1.72 parser 119: }
1.18 paf 120:
1.154 paf 121: char* file_read_text(Request_charsets& charsets,
1.229 misha 122: const String& file_spec,
123: bool fail_on_read_problem,
1.234 misha 124: HashStringValue* params,
125: bool transcode_result) {
1.154 paf 126: File_read_result file=
1.234 misha 127: file_read(charsets, file_spec, true, params, fail_on_read_problem, 0, 0, 0, transcode_result);
1.154 paf 128: return file.success?file.str:0;
1.126 paf 129: }
130:
1.241 misha 131: char* file_load_text(Request& r,
132: const String& file_spec,
133: bool fail_on_read_problem,
134: HashStringValue* params,
135: bool transcode_result) {
136: File_read_result file=
137: file_load(r, file_spec, true, params, fail_on_read_problem, 0, 0, 0, transcode_result);
138: return file.success?file.str:0;
139: }
140:
1.206 paf 141: /// these options were handled but not checked elsewhere, now check them
1.239 misha 142: int pa_get_valid_file_options_count(HashStringValue& options) {
1.206 paf 143: int result=0;
144: if(options.get(PA_SQL_LIMIT_NAME))
145: result++;
146: if(options.get(PA_SQL_OFFSET_NAME))
147: result++;
148: if(options.get(PA_COLUMN_SEPARATOR_NAME))
149: result++;
150: if(options.get(PA_COLUMN_ENCLOSER_NAME))
151: result++;
1.223 misha 152: if(options.get(PA_CHARSET_NAME))
153: result++;
1.206 paf 154: return result;
155: }
156:
1.123 paf 157: #ifndef DOXYGEN
158: struct File_read_action_info {
1.154 paf 159: char **data; size_t *data_size;
1.188 paf 160: char* buf; size_t offset; size_t count;
1.126 paf 161: };
1.123 paf 162: #endif
1.154 paf 163: static void file_read_action(
1.229 misha 164: struct stat& finfo,
165: int f,
166: const String& file_spec, const char* /*fname*/, bool as_text,
167: void *context) {
1.126 paf 168: File_read_action_info& info=*static_cast<File_read_action_info *>(context);
1.188 paf 169: size_t to_read_size=info.count;
170: if(!to_read_size)
171: to_read_size=(size_t)finfo.st_size;
172: assert( !(info.buf && as_text) );
173: if(to_read_size) {
174: if(info.offset)
175: lseek(f, info.offset, SEEK_SET);
176: *info.data=info.buf
177: ? info.buf
1.253 misha 178: : (char *)pa_malloc_atomic(to_read_size+1);
1.126 paf 179: *info.data_size=(size_t)read(f, *info.data, to_read_size);
1.123 paf 180:
181: if(ssize_t(*info.data_size)<0 || *info.data_size>to_read_size)
1.238 misha 182: throw Exception("file.read",
1.123 paf 183: &file_spec,
1.173 paf 184: "read failed: actually read %u bytes count not in [0..%u] valid range",
1.126 paf 185: *info.data_size, to_read_size);
1.123 paf 186: } else { // empty file
1.209 paf 187: // for both, text and binary: for text we need that terminator, for binary we need nonzero pointer to be able to save such files
1.253 misha 188: *info.data=(char *)pa_malloc_atomic(1);
1.209 paf 189: *(char*)(*info.data)=0;
1.123 paf 190: *info.data_size=0;
191: return;
192: }
1.126 paf 193: }
1.241 misha 194:
1.154 paf 195: File_read_result file_read(Request_charsets& charsets, const String& file_spec,
1.229 misha 196: bool as_text, HashStringValue *params,
197: bool fail_on_read_problem,
1.234 misha 198: char* buf, size_t offset, size_t count, bool transcode_text_result) {
1.167 paf 199: File_read_result result={false, 0, 0, 0};
1.241 misha 200: if(params){
201: int valid_options=pa_get_valid_file_options_count(*params);
202: if(valid_options!=params->count())
1.224 misha 203: throw Exception(PARSER_RUNTIME,
1.203 paf 204: 0,
1.250 misha 205: INVALID_OPTION_PASSED);
1.241 misha 206: }
1.203 paf 207:
1.241 misha 208: File_read_action_info info={&result.str, &result.length, buf, offset, count};
1.161 paf 209:
1.241 misha 210: result.success=file_read_action_under_lock(file_spec,
211: "read", file_read_action, &info,
212: as_text, fail_on_read_problem);
1.223 misha 213:
1.241 misha 214: if(as_text){
215: if(result.success){
1.236 misha 216: if(result.length>=3 && strncmp(result.str, "\xEF\xBB\xBF", 3)==0){
1.240 misha 217: // skip UTF-8 signature (BOM code)
1.236 misha 218: result.str+=3;
219: result.length-=3;
220: }
221:
222: if(result.length && transcode_text_result && params){ // must be checked because transcode returns CONST string in case length==0, which contradicts hacking few lines below
1.240 misha 223: if(Value* vcharset_name=params->get(PA_CHARSET_NAME)){
1.236 misha 224: Charset asked_charset=::charsets.get(vcharset_name->as_string().
225: change_case(charsets.source(), String::CC_UPPER));
226:
227: String::C body=String::C(result.str, result.length);
228: body=Charset::transcode(body, asked_charset, charsets.source());
1.123 paf 229:
1.236 misha 230: result.str=const_cast<char*>(body.str); // hacking a little
231: result.length=body.length;
232: }
1.131 paf 233: }
234: }
1.241 misha 235: if(result.length)
236: fix_line_breaks(result.str, result.length);
1.123 paf 237: }
1.241 misha 238:
239: return result;
240: }
241:
242: File_read_result file_load(Request& r, const String& file_spec,
243: bool as_text, HashStringValue *params,
244: bool fail_on_read_problem,
245: char* buf, size_t offset, size_t count, bool transcode_text_result) {
246:
247: File_read_result result={false, 0, 0, 0};
248: if(file_spec.starts_with("http://")) {
249: if(offset || count)
250: throw Exception(PARSER_RUNTIME,
251: 0,
252: "offset and load options are not supported for HTTP:// file load");
253:
254: // fail on read problem
255: File_read_http_result http=pa_internal_file_read_http(r, file_spec, as_text, params, transcode_text_result);
256: result.success=true;
257: result.str=http.str;
258: result.length=http.length;
259: result.headers=http.headers;
260: } else
261: result=
262: file_read(r.charsets, file_spec, as_text, params, fail_on_read_problem, buf, offset, count, transcode_text_result);
1.126 paf 263:
264: return result;
1.123 paf 265: }
266:
1.154 paf 267: #ifdef PA_SAFE_MODE
268: void check_safe_mode(struct stat finfo, const String& file_spec, const char* fname) {
269: if(finfo.st_uid/*foreign?*/!=geteuid()
270: && finfo.st_gid/*foreign?*/!=getegid())
1.224 misha 271: throw Exception(PARSER_RUNTIME,
1.154 paf 272: &file_spec,
273: "parser is in safe mode: "
274: "reading files of foreign group and user disabled "
275: "[recompile parser with --disable-safe-mode configure option], "
276: "actual filename '%s', "
277: "fuid(%d)!=euid(%d) or fgid(%d)!=egid(%d)",
278: fname,
279: finfo.st_uid, geteuid(),
280: finfo.st_gid, getegid());
281: }
282: #endif
1.149 paf 283:
1.154 paf 284: bool file_read_action_under_lock(const String& file_spec,
1.126 paf 285: const char* action_name, File_read_action action, void *context,
286: bool as_text,
1.123 paf 287: bool fail_on_read_problem) {
1.247 misha 288: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
1.33 paf 289: int f;
290:
291: // first open, next stat:
1.45 paf 292: // directory update of NTFS hard links performed on open.
1.33 paf 293: // ex:
294: // a.html:^test[] and b.html hardlink to a.html
295: // user inserts ! before ^test in a.html
1.126 paf 296: // directory entry of b.html in NTFS not updated at once,
1.35 paf 297: // they delay update till open, so we would receive "!^test[" string
298: // if would do stat, next open.
1.123 paf 299: // later: it seems, even this does not help sometimes
1.229 misha 300: if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) {
1.123 paf 301: try {
1.162 paf 302: if(pa_lock_shared_blocking(f)!=0)
1.126 paf 303: throw Exception("file.lock",
1.123 paf 304: &file_spec,
305: "shared lock failed: %s (%d), actual filename '%s'",
1.154 paf 306: strerror(errno), errno, fname);
1.123 paf 307:
1.124 paf 308: struct stat finfo;
1.254 misha 309: if(fstat(f, &finfo)!=0)
1.124 paf 310: throw Exception("file.missing", // hardly possible: we just opened it OK
311: &file_spec,
312: "stat failed: %s (%d), actual filename '%s'",
1.154 paf 313: strerror(errno), errno, fname);
1.124 paf 314:
1.140 paf 315: #ifdef PA_SAFE_MODE
1.149 paf 316: check_safe_mode(finfo, file_spec, fname);
1.105 paf 317: #endif
1.32 paf 318:
1.154 paf 319: action(finfo, f, file_spec, fname, as_text, context);
1.123 paf 320: } catch(...) {
1.162 paf 321: pa_unlock(f);close(f);
1.123 paf 322: if(fail_on_read_problem)
1.154 paf 323: rethrow;
1.123 paf 324: return false;
325: }
1.87 paf 326:
1.162 paf 327: pa_unlock(f);close(f);
1.72 parser 328: return true;
1.229 misha 329: } else {
1.118 paf 330: if(fail_on_read_problem)
1.126 paf 331: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.118 paf 332: &file_spec,
1.123 paf 333: "%s failed: %s (%d), actual filename '%s'",
1.154 paf 334: action_name, strerror(errno), errno, fname);
1.118 paf 335: return false;
336: }
1.8 paf 337: }
338:
1.202 paf 339: void create_dir_for_file(const String& file_spec) {
1.63 parser 340: size_t pos_after=1;
1.154 paf 341: size_t pos_before;
342: while((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND) {
1.247 misha 343: mkdir(file_spec.mid(0, pos_before).taint_cstr(String::L_FILE_SPEC), 0775);
1.63 parser 344: pos_after=pos_before+1;
345: }
346: }
347:
1.98 paf 348: bool file_write_action_under_lock(
1.28 paf 349: const String& file_spec,
1.225 misha 350: const char* action_name,
351: File_write_action action,
352: void *context,
1.126 paf 353: bool as_text,
354: bool do_append,
355: bool do_block,
1.110 paf 356: bool fail_on_lock_problem) {
1.247 misha 357: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
1.28 paf 358: int f;
1.80 paf 359: if(access(fname, W_OK)!=0) // no
1.126 paf 360: create_dir_for_file(file_spec);
1.50 paf 361:
1.80 paf 362: if((f=open(fname,
363: O_CREAT|O_RDWR
364: |(as_text?_O_TEXT:_O_BINARY)
1.138 paf 365: |(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) {
1.162 paf 366: if((do_block?pa_lock_exclusive_blocking(f):pa_lock_exclusive_nonblocking(f))!=0) {
1.126 paf 367: Exception e("file.lock",
1.110 paf 368: &file_spec,
369: "shared lock failed: %s (%d), actual filename '%s'",
1.154 paf 370: strerror(errno), errno, fname);
1.126 paf 371: close(f);
1.110 paf 372: if(fail_on_lock_problem)
373: throw e;
1.98 paf 374: return false;
375: }
1.96 paf 376:
1.158 paf 377: try {
1.254 misha 378: #if (defined(HAVE_FCHMOD) && defined(PA_SAFE_MODE))
379: struct stat finfo;
380: if(fstat(f, &finfo)==0 && finfo.st_mode & 0111)
381: fchmod(f, finfo.st_mode & 0666/*clear executable bits*/); // backward: ignore errors if any
382: #endif
383: action(f, context);
1.158 paf 384: } catch(...) {
1.138 paf 385: #ifdef HAVE_FTRUNCATE
1.104 paf 386: if(!do_append)
1.125 paf 387: ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower
1.138 paf 388: #endif
1.162 paf 389: pa_unlock(f);close(f);
1.154 paf 390: rethrow;
1.158 paf 391: }
1.80 paf 392:
1.138 paf 393: #ifdef HAVE_FTRUNCATE
1.104 paf 394: if(!do_append)
1.125 paf 395: ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov <virtan@rotabanner.com> for discovering]
1.138 paf 396: #endif
1.162 paf 397: pa_unlock(f);close(f);
1.98 paf 398: return true;
1.80 paf 399: } else
1.126 paf 400: throw Exception(errno==EACCES?"file.access":0,
1.80 paf 401: &file_spec,
1.96 paf 402: "%s failed: %s (%d), actual filename '%s'",
1.154 paf 403: action_name, strerror(errno), errno, fname);
1.96 paf 404: // here should be nothing, see rethrow above
405: }
406:
407: #ifndef DOXYGEN
408: struct File_write_action_info {
1.250 misha 409: const char* str;
410: size_t length;
1.126 paf 411: };
1.96 paf 412: #endif
413: static void file_write_action(int f, void *context) {
1.126 paf 414: File_write_action_info& info=*static_cast<File_write_action_info *>(context);
1.154 paf 415: if(info.length) {
416: int written=write(f, info.str, info.length);
1.116 paf 417: if(written<0)
1.238 misha 418: throw Exception("file.access",
1.126 paf 419: 0,
420: "write failed: %s (%d)", strerror(errno), errno);
1.113 paf 421: }
1.96 paf 422: }
423: void file_write(
1.250 misha 424: Request_charsets& charsets,
425: const String& file_spec,
426: const char* data,
427: size_t size,
1.126 paf 428: bool as_text,
1.250 misha 429: bool do_append,
430: Charset* asked_charset) {
431:
432: if(as_text && asked_charset){
433: String::C body=String::C(data, size);
434: body=Charset::transcode(body, charsets.source(), *asked_charset);
435: data=body.str;
436: size=body.length;
437: };
438:
1.126 paf 439: File_write_action_info info={data, size};
1.225 misha 440:
1.98 paf 441: file_write_action_under_lock(
1.154 paf 442: file_spec,
1.225 misha 443: "write",
444: file_write_action,
445: &info,
1.154 paf 446: as_text,
447: do_append);
1.30 paf 448: }
449:
1.63 parser 450: // throws nothing! [this is required in file_move & file_delete]
1.50 paf 451: static void rmdir(const String& file_spec, size_t pos_after) {
1.154 paf 452: size_t pos_before;
453: if((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND)
1.126 paf 454: rmdir(file_spec, pos_before+1);
1.50 paf 455:
1.247 misha 456: rmdir(file_spec.mid(0, pos_after-1/* / */).taint_cstr(String::L_FILE_SPEC));
1.50 paf 457: }
1.239 misha 458:
1.164 paf 459: bool file_delete(const String& file_spec, bool fail_on_problem) {
1.247 misha 460: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
1.54 parser 461: if(unlink(fname)!=0)
1.164 paf 462: if(fail_on_problem)
1.126 paf 463: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.93 paf 464: &file_spec,
465: "unlink failed: %s (%d), actual filename '%s'",
1.154 paf 466: strerror(errno), errno, fname);
1.93 paf 467: else
468: return false;
1.50 paf 469:
1.126 paf 470: rmdir(file_spec, 1);
1.93 paf 471: return true;
1.60 parser 472: }
1.239 misha 473:
1.95 paf 474: void file_move(const String& old_spec, const String& new_spec) {
1.247 misha 475: const char* old_spec_cstr=old_spec.taint_cstr(String::L_FILE_SPEC);
476: const char* new_spec_cstr=new_spec.taint_cstr(String::L_FILE_SPEC);
1.63 parser 477:
1.126 paf 478: create_dir_for_file(new_spec);
1.63 parser 479:
1.60 parser 480: if(rename(old_spec_cstr, new_spec_cstr)!=0)
1.126 paf 481: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.60 parser 482: &old_spec,
483: "rename failed: %s (%d), actual filename '%s' to '%s'",
1.154 paf 484: strerror(errno), errno, old_spec_cstr, new_spec_cstr);
1.63 parser 485:
1.126 paf 486: rmdir(old_spec, 1);
1.31 paf 487: }
488:
1.51 paf 489:
1.126 paf 490: bool entry_exists(const char* fname, struct stat *afinfo) {
1.118 paf 491: struct stat lfinfo;
492: bool result=stat(fname, &lfinfo)==0;
493: if(afinfo)
494: *afinfo=lfinfo;
495: return result;
1.119 paf 496: }
497:
498: bool entry_exists(const String& file_spec) {
1.247 misha 499: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
1.126 paf 500: return entry_exists(fname, 0);
1.118 paf 501: }
502:
1.51 paf 503: static bool entry_readable(const String& file_spec, bool need_dir) {
1.247 misha 504: char* fname=file_spec.taint_cstrm(String::L_FILE_SPEC);
1.120 paf 505: if(need_dir) {
1.126 paf 506: size_t size=strlen(fname);
1.120 paf 507: while(size) {
1.126 paf 508: char c=fname[size-1];
1.120 paf 509: if(c=='/' || c=='\\')
510: fname[--size]=0;
511: else
512: break;
513: }
514: }
1.51 paf 515: struct stat finfo;
1.118 paf 516: if(access(fname, R_OK)==0 && entry_exists(fname, &finfo)) {
1.109 paf 517: bool is_dir=(finfo.st_mode&S_IFDIR) != 0;
1.51 paf 518: return is_dir==need_dir;
519: }
520: return false;
521: }
1.239 misha 522:
1.215 paf 523: bool file_exist(const String& file_spec) {
1.126 paf 524: return entry_readable(file_spec, false);
1.51 paf 525: }
1.239 misha 526:
1.215 paf 527: bool dir_exists(const String& file_spec) {
1.126 paf 528: return entry_readable(file_spec, true);
1.65 parser 529: }
1.239 misha 530:
1.215 paf 531: const String* file_exist(const String& path, const String& name) {
1.154 paf 532: String& result=*new String(path);
533: result << "/";
534: result << name;
1.215 paf 535: return file_exist(result)?&result:0;
1.43 paf 536: }
1.239 misha 537:
1.43 paf 538: bool file_executable(const String& file_spec) {
1.247 misha 539: return access(file_spec.taint_cstr(String::L_FILE_SPEC), X_OK)==0;
1.44 paf 540: }
541:
1.64 parser 542: bool file_stat(const String& file_spec,
1.229 misha 543: size_t& rsize,
544: time_t& ratime,
545: time_t& rmtime,
546: time_t& rctime,
547: bool fail_on_read_problem) {
1.247 misha 548: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
1.154 paf 549: struct stat finfo;
1.44 paf 550: if(stat(fname, &finfo)!=0)
1.64 parser 551: if(fail_on_read_problem)
1.126 paf 552: throw Exception("file.missing",
1.67 parser 553: &file_spec,
554: "getting file size failed: %s (%d), real filename '%s'",
1.154 paf 555: strerror(errno), errno, fname);
1.64 parser 556: else
557: return false;
1.58 parser 558: rsize=finfo.st_size;
559: ratime=finfo.st_atime;
560: rmtime=finfo.st_mtime;
561: rctime=finfo.st_ctime;
1.64 parser 562: return true;
1.18 paf 563: }
564:
1.126 paf 565: char* getrow(char* *row_ref, char delim) {
1.229 misha 566: char* result=*row_ref;
567: if(result) {
1.126 paf 568: *row_ref=strchr(result, delim);
1.8 paf 569: if(*row_ref)
570: *((*row_ref)++)=0;
571: else if(!*result)
572: return 0;
1.229 misha 573: }
574: return result;
1.8 paf 575: }
576:
1.126 paf 577: char* lsplit(char* string, char delim) {
1.229 misha 578: if(string) {
1.126 paf 579: char* v=strchr(string, delim);
1.8 paf 580: if(v) {
581: *v=0;
582: return v+1;
583: }
1.229 misha 584: }
585: return 0;
1.8 paf 586: }
587:
1.126 paf 588: char* lsplit(char* *string_ref, char delim) {
1.229 misha 589: char* result=*string_ref;
1.126 paf 590: char* next=lsplit(*string_ref, delim);
1.229 misha 591: *string_ref=next;
592: return result;
1.9 paf 593: }
594:
1.126 paf 595: char* rsplit(char* string, char delim) {
1.229 misha 596: if(string) {
1.126 paf 597: char* v=strrchr(string, delim);
1.18 paf 598: if(v) {
1.9 paf 599: *v=0;
600: return v+1;
601: }
1.229 misha 602: }
603: return NULL;
1.10 paf 604: }
605:
1.229 misha 606:
607: // format: %[flags][width][.precision]type http://msdn.microsoft.com/ru-ru/library/56e442dc(en-us,VS.80).aspx
608: // flags: '-', '+', ' ', '#', '0' http://msdn.microsoft.com/ru-ru/library/8aky45ct(en-us,VS.80).aspx
609: // width, precision: non negative decimal number
610: enum FormatType {
611: FormatInvalid,
612: FormatInt,
613: FormatUInt,
614: FormatDouble
615: };
616: FormatType format_type(char* fmt){
617: enum FormatState {
618: Percent,
619: Flags,
620: Width,
621: Precision,
622: Done
623: } state=Percent;
624:
625: FormatType result=FormatInvalid;
626:
627: char* pos=fmt;
628: while(char c=*(pos++)){
629: switch(state){
630: case Percent:
631: if(c=='%'){
632: state=Flags;
633: } else {
634: return FormatInvalid; // 1st char must be '%' only
635: }
636: break;
637: case Flags:
638: if(strchr("-+ #0", c)!=0){
639: break;
640: }
641: // go to the next step
642: case Width:
643: if(c=='.'){
644: state=Precision;
645: break;
646: }
647: // go to the next step
648: case Precision:
649: if(c>='0' && c<='9'){
650: if(state == Flags) state=Width; // no more flags
651: break;
652: } else if(c=='d' || c=='i'){
653: result=FormatInt;
654: } else if(strchr("feEgG", c)!=0){
655: result=FormatDouble;
656: } else if(strchr("uoxX", c)!=0){
657: result=FormatUInt;
658: } else {
659: return FormatInvalid; // invalid char
660: }
661: state=Done;
662: break;
663: case Done:
664: return FormatInvalid; // no chars allowed after 'type'
665: }
666: }
667: return result;
668: }
669:
670:
1.154 paf 671: const char* format(double value, char* fmt) {
1.229 misha 672: char local_buf[MAX_NUMBER];
1.235 misha 673: int size=-1;
1.229 misha 674:
675: if(fmt && strlen(fmt)){
676: switch(format_type(fmt)){
677: case FormatDouble:
678: size=snprintf(local_buf, sizeof(local_buf), fmt, value);
679: break;
680: case FormatInt:
681: size=snprintf(local_buf, sizeof(local_buf), fmt, (int)value);
682: break;
683: case FormatUInt:
1.126 paf 684: size=snprintf(local_buf, sizeof(local_buf), fmt, (uint)value);
1.229 misha 685: break;
686: case FormatInvalid:
687: throw Exception(PARSER_RUNTIME,
688: 0,
689: "Incorrect format string '%s' was specified.", fmt);
690: }
691: } else
692: size=snprintf(local_buf, sizeof(local_buf), "%d", (int)value);
693:
694: if(size < 0 || size >= MAX_NUMBER-1){ // on win32 we manually reduce max size while printing
695: throw Exception(PARSER_RUNTIME,
696: 0,
697: "Error occure white executing snprintf with format string '%s'.", fmt);
698: }
699:
1.235 misha 700: return pa_strdup(local_buf, (size_t)size);
1.12 paf 701: }
702:
1.36 paf 703: size_t stdout_write(const void *buf, size_t size) {
1.12 paf 704: #ifdef WIN32
1.187 paf 705: size_t to_write = size;
1.12 paf 706: do{
1.154 paf 707: int chunk_written=fwrite(buf, 1, min((size_t)8*0x400, size), stdout);
1.12 paf 708: if(chunk_written<=0)
709: break;
710: size-=chunk_written;
1.36 paf 711: buf=((const char*)buf)+chunk_written;
1.126 paf 712: } while(size>0);
1.12 paf 713:
1.187 paf 714: return to_write-size;
1.12 paf 715: #else
1.126 paf 716: return fwrite(buf, 1, size, stdout);
1.12 paf 717: #endif
1.2 paf 718: }
1.14 paf 719:
1.229 misha 720: enum EscapeState {
721: EscapeRest,
722: EscapeFirst,
723: EscapeSecond,
724: EscapeUnicode
725: };
726:
1.236 misha 727: // @todo prescan for reduce required size (unescaped sting in 1 byte charset requires less memory usually)
728: char* unescape_chars(const char* cp, int len, Charset* charset, bool ignore_plus){
729: char* s=new(PointerFreeGC) char[len+1]; // must be enough (%uXXXX==6 bytes, max utf-8 char length==6 bytes)
1.230 misha 730: char* dst=s;
1.229 misha 731: EscapeState escapeState=EscapeRest;
732: uint escapedValue=0;
733: int srcPos=0;
1.230 misha 734: short int jsCnt=0;
1.236 misha 735: while(srcPos<len){
1.229 misha 736: uchar c=(uchar)cp[srcPos];
737: if(c=='%'){
738: escapeState=EscapeFirst;
739: } else {
740: switch(escapeState) {
741: case EscapeRest:
1.236 misha 742: if(!ignore_plus && c=='+'){
1.230 misha 743: *dst++=' ';
1.229 misha 744: } else {
1.230 misha 745: *dst++=c;
1.229 misha 746: }
747: break;
748: case EscapeFirst:
1.232 misha 749: if(charset && c=='u'){
1.229 misha 750: // escaped unicode value: %u0430
751: jsCnt=0;
752: escapedValue=0;
753: escapeState=EscapeUnicode;
754: } else {
1.231 misha 755: if(isxdigit(c)){
1.229 misha 756: escapedValue=hex_value[c] << 4;
757: escapeState=EscapeSecond;
758: } else {
1.230 misha 759: *dst++=c;
1.229 misha 760: escapeState=EscapeRest;
761: }
762: }
763: break;
764: case EscapeSecond:
1.231 misha 765: if(isxdigit(c)){
1.229 misha 766: escapedValue+=hex_value[c];
1.230 misha 767: *dst++=(char)escapedValue;
1.229 misha 768: }
769: escapeState=EscapeRest;
770: break;
771: case EscapeUnicode:
1.231 misha 772: if(isxdigit(c)){
1.229 misha 773: escapedValue=(escapedValue << 4) + hex_value[c];
774: if(++jsCnt==4){
1.230 misha 775: // transcode utf8 char to client charset (we can lost some chars here)
1.232 misha 776: charset->store_Char((XMLByte*&)dst, (XMLCh)escapedValue, '?');
1.229 misha 777: escapeState=EscapeRest;
778: }
779: } else {
780: // not full unicode value
781: escapeState=EscapeRest;
782: }
783: break;
784: }
785: }
786:
787: srcPos++;
788: }
789:
1.230 misha 790: *dst=0; // zero-termination
1.229 misha 791: return s;
792: }
1.24 paf 793:
794: #ifdef WIN32
1.126 paf 795: void back_slashes_to_slashes(char* s) {
1.24 paf 796: if(s)
797: for(; *s; s++)
798: if(*s=='\\')
1.126 paf 799: *s='/';
1.24 paf 800: }
1.42 paf 801: /*
1.126 paf 802: void slashes_to_back_slashes(char* s) {
1.42 paf 803: if(s)
804: for(; *s; s++)
805: if(*s=='/')
1.126 paf 806: *s='\\';
1.42 paf 807: }
808: */
1.24 paf 809: #endif
1.41 paf 810:
1.231 misha 811: bool StrStartFromNC(const char* str, const char* substr, bool equal){
1.41 paf 812: while(true) {
1.231 misha 813: if(!(*substr)){
814: if(!(*str))
1.41 paf 815: return true;
816: else
1.231 misha 817: return !equal;
818: }
819: if(!(*str))
820: return false;
821: if(isalpha((unsigned char)*str)) {
822: if(tolower((unsigned char)*str)!=tolower((unsigned char)*substr))
1.41 paf 823: return false;
1.231 misha 824: } else if((*str) != (*substr))
1.41 paf 825: return false;
1.231 misha 826: str++;
827: substr++;
1.41 paf 828: }
1.57 parser 829: }
830:
1.232 misha 831: size_t strpos(const char *str, const char *substr) {
832: const char *p = strstr(str, substr);
833: return (p==0)?STRING_NOT_FOUND:p-str;
834: }
835:
836: // content-type: xxx; charset=WE-NEED-THIS
837: // content-type: xxx; charset="WE-NEED-THIS"
838: // content-type: xxx; charset="WE-NEED-THIS";
1.248 misha 839: Charset* detect_charset(const char* content_type){
1.233 misha 840: if(content_type){
1.245 misha 841: char* CONTENT_TYPE=pa_strdup(content_type);
1.248 misha 842:
843: for(char *p=CONTENT_TYPE; *p; p++)
844: *p=(char)toupper((unsigned char)*p);
1.233 misha 845:
846: if(const char* begin=strstr(CONTENT_TYPE, "CHARSET=")){
847: begin+=8; // skip "CHARSET="
848: char* end=0;
849: if(*begin && (*begin=='"' || *begin =='\'')){
850: char quote=*begin;
851: begin++;
852: end=(char*)strchr(begin, quote);
853: }
854: if(!end)
855: end=(char*)strchr(begin, ';');
856:
1.244 misha 857: if(end)
1.233 misha 858: *end=0; // terminator
859:
1.245 misha 860: return *begin?&charsets.get(begin):0;
1.232 misha 861: }
862: }
863: return 0;
864: }
865:
866:
1.84 paf 867: static bool isLeap(int year) {
1.229 misha 868: return !(
869: (year % 4) || ((year % 400) && !(year % 100))
870: );
1.57 parser 871: }
872:
873: int getMonthDays(int year, int month) {
1.220 misha 874: static int monthDays[]={
1.229 misha 875: 31,
876: 28,
877: 31,
878: 30,
879: 31,
880: 30,
881: 31,
882: 31,
883: 30,
884: 31,
885: 30,
886: 31
887: };
1.228 misha 888: return (month == 1 /* january -- 0 */ && isLeap(year)) ? 29 : monthDays[month];
1.41 paf 889: }
1.69 parser 890:
1.226 misha 891: int remove_crlf(char* start, char* end) {
892: char* from=start;
893: char* to=start;
894: bool skip=false;
895: while(from < end){
896: switch(*from){
897: case '\n':
898: case '\r':
899: case '\t':
900: case ' ':
901: if(!skip){
902: *to=' ';
903: to++;
904: skip=true;
905: }
906: break;
907: default:
908: if(from != to)
909: *to=*from;
910: to++;
911: skip=false;
1.69 parser 912: }
1.226 misha 913: from++;
914: }
915: return to-start;
1.91 paf 916: }
917:
918:
919: /// must be last in this file
920: #undef vsnprintf
1.126 paf 921: int __vsnprintf(char* b, size_t s, const char* f, va_list l) {
1.91 paf 922: if(!s)
923: return 0;
924:
925: int r;
926: // note: on win32& maybe somewhere else
927: // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing
928: --s;
1.172 paf 929:
930: // clients do not check for negative 's', feature: ignore such prints
931: if((ssize_t)s<0)
932: return 0;
933:
1.91 paf 934: #if _MSC_VER
935: /*
936: win32:
937: mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001APR\1033\vccore.chm::/html/_crt__vsnprintf.2c_._vsnwprintf.htm
938:
1.154 paf 939: if the number of bytes to write exceeds buffer, then count bytes are written and Ö1 is returned
1.91 paf 940: */
1.126 paf 941: r=_vsnprintf(b, s, f, l);
1.91 paf 942: if(r<0)
943: r=s;
944: #else
1.126 paf 945: r=vsnprintf(b, s, f, l);
1.91 paf 946: /*
947: solaris:
948: man vsnprintf
949:
950: The snprintf() function returns the number of characters
951: formatted, that is, the number of characters that would have
952: been written to the buffer if it were large enough. If the
953: value of n is 0 on a call to snprintf(), an unspecified
954: value less than 1 is returned.
955: */
956:
957: if(r<0)
958: r=0;
1.167 paf 959: else if((size_t)r>s)
1.91 paf 960: r=s;
961: #endif
962: b[r]=0;
963: return r;
964: }
965:
1.126 paf 966: int __snprintf(char* b, size_t s, const char* f, ...) {
1.91 paf 967: va_list l;
1.241 misha 968: va_start(l, f);
969: int r=__vsnprintf(b, s, f, l);
970: va_end(l);
1.91 paf 971: return r;
1.178 paf 972: }
973:
974: /* mime64 functions are from libgmime[http://spruce.sourceforge.net/gmime/] lib */
975: /*
976: * Authors: Michael Zucchi <notzed@helixcode.com>
977: * Jeffrey Stedfast <fejj@helixcode.com>
978: *
979: * Copyright 2000 Helix Code, Inc. (www.helixcode.com)
980: *
981: * This program is free software; you can redistribute it and/or modify
982: * it under the terms of the GNU General Public License as published by
983: * the Free Software Foundation; either version 2 of the License, or
984: * (at your option) any later version.
985: *
986: * This program is distributed in the hope that it will be useful,
987: * but WITHOUT ANY WARRANTY; without even the implied warranty of
988: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
989: * GNU General Public License for more details.
990: *
991: * You should have received a copy of the GNU General Public License
992: * along with this program; if not, write to the Free Software
993: * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
994: *
995: */
996: static char *base64_alphabet =
997: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
998:
999: /**
1000: * g_mime_utils_base64_encode_step:
1001: * @in: input stream
1002: * @inlen: length of the input
1003: * @out: output string
1004: * @state: holds the number of bits that are stored in @save
1005: * @save: leftover bits that have not yet been encoded
1006: *
1007: * Base64 encodes a chunk of data. Performs an 'encode step', only
1008: * encodes blocks of 3 characters to the output at a time, saves
1009: * left-over state in state and save (initialise to 0 on first
1010: * invocation).
1011: *
1012: * Returns the number of bytes encoded.
1013: **/
1.252 misha 1014:
1015: #define BASE64_GROUPS_IN_LINE 19
1016:
1.178 paf 1017: static size_t
1018: g_mime_utils_base64_encode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1019: {
1.186 paf 1020: register const unsigned char *inptr;
1.178 paf 1021: register unsigned char *outptr;
1022:
1023: if (inlen <= 0)
1024: return 0;
1025:
1026: inptr = in;
1027: outptr = out;
1028:
1029: if (inlen + ((unsigned char *)save)[0] > 2) {
1030: const unsigned char *inend = in + inlen - 2;
1031: register int c1 = 0, c2 = 0, c3 = 0;
1032: register int already;
1033:
1034: already = *state;
1035:
1036: switch (((char *)save)[0]) {
1037: case 1: c1 = ((unsigned char *)save)[1]; goto skip1;
1038: case 2: c1 = ((unsigned char *)save)[1];
1039: c2 = ((unsigned char *)save)[2]; goto skip2;
1040: }
1041:
1042: /* yes, we jump into the loop, no i'm not going to change it, its beautiful! */
1043: while (inptr < inend) {
1044: c1 = *inptr++;
1045: skip1:
1046: c2 = *inptr++;
1047: skip2:
1048: c3 = *inptr++;
1049: *outptr++ = base64_alphabet [c1 >> 2];
1050: *outptr++ = base64_alphabet [(c2 >> 4) | ((c1 & 0x3) << 4)];
1051: *outptr++ = base64_alphabet [((c2 & 0x0f) << 2) | (c3 >> 6)];
1052: *outptr++ = base64_alphabet [c3 & 0x3f];
1053: /* this is a bit ugly ... */
1.252 misha 1054: if ((++already) >= BASE64_GROUPS_IN_LINE) {
1.178 paf 1055: *outptr++ = '\n';
1056: already = 0;
1057: }
1058: }
1059:
1060: ((unsigned char *)save)[0] = 0;
1061: inlen = 2 - (inptr - inend);
1062: *state = already;
1063: }
1064:
1065: //d(printf ("state = %d, inlen = %d\n", (int)((char *)save)[0], inlen));
1066:
1067: if (inlen > 0) {
1068: register char *saveout;
1069:
1070: /* points to the slot for the next char to save */
1071: saveout = & (((char *)save)[1]) + ((char *)save)[0];
1072:
1073: /* inlen can only be 0 1 or 2 */
1074: switch (inlen) {
1075: case 2: *saveout++ = *inptr++;
1076: case 1: *saveout++ = *inptr++;
1077: }
1.216 paf 1078: *(char *)save = *(char *)save+(char)inlen;
1.178 paf 1079: }
1080:
1081: /*d(printf ("mode = %d\nc1 = %c\nc2 = %c\n",
1082: (int)((char *)save)[0],
1083: (int)((char *)save)[1],
1084: (int)((char *)save)[2]));*/
1085:
1086: return (outptr - out);
1087: }
1088:
1089: /**
1090: * g_mime_utils_base64_encode_close:
1091: * @in: input stream
1092: * @inlen: length of the input
1093: * @out: output string
1094: * @state: holds the number of bits that are stored in @save
1095: * @save: leftover bits that have not yet been encoded
1096: *
1097: * Base64 encodes the input stream to the output stream. Call this
1098: * when finished encoding data with g_mime_utils_base64_encode_step to
1099: * flush off the last little bit.
1100: *
1101: * Returns the number of bytes encoded.
1102: **/
1103: static size_t
1104: g_mime_utils_base64_encode_close (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1105: {
1106: unsigned char *outptr = out;
1107: int c1, c2;
1108:
1109: if (inlen > 0)
1110: outptr += g_mime_utils_base64_encode_step (in, inlen, outptr, state, save);
1111:
1112: c1 = ((unsigned char *)save)[1];
1113: c2 = ((unsigned char *)save)[2];
1114:
1115: switch (((unsigned char *)save)[0]) {
1116: case 2:
1117: outptr[2] = base64_alphabet [(c2 & 0x0f) << 2];
1118: goto skip;
1119: case 1:
1120: outptr[2] = '=';
1121: skip:
1122: outptr[0] = base64_alphabet [c1 >> 2];
1123: outptr[1] = base64_alphabet [c2 >> 4 | ((c1 & 0x3) << 4)];
1124: outptr[3] = '=';
1125: outptr += 4;
1126: break;
1127: }
1128:
1129: *outptr++ = 0;
1130:
1131: *save = 0;
1132: *state = 0;
1133:
1134: return (outptr - out);
1135: }
1136:
1.210 paf 1137: static unsigned char gmime_base64_rank[256] = {
1138: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1139: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1140: 255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63,
1141: 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255, 0,255,255,
1142: 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
1143: 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255,
1144: 255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
1145: 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255,
1146: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1147: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1148: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1149: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1150: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1151: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1152: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1153: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1154: };
1155:
1156: /**
1157: * g_mime_utils_base64_decode_step:
1158: * @in: input stream
1159: * @inlen: max length of data to decode
1160: * @out: output stream
1161: * @state: holds the number of bits that are stored in @save
1162: * @save: leftover bits that have not yet been decoded
1163: *
1164: * Decodes a chunk of base64 encoded data.
1165: *
1166: * Returns the number of bytes decoded (which have been dumped in @out).
1167: **/
1168: size_t
1169: g_mime_utils_base64_decode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1170: {
1.213 paf 1171: const unsigned char *inptr;
1172: unsigned char *outptr;
1.210 paf 1173: const unsigned char *inend;
1.213 paf 1174: int saved;
1.210 paf 1175: unsigned char c;
1176: int i;
1177:
1178: inend = in + inlen;
1179: outptr = out;
1180:
1181: /* convert 4 base64 bytes to 3 normal bytes */
1182: saved = *save;
1183: i = *state;
1184: inptr = in;
1185: while (inptr < inend) {
1186: c = gmime_base64_rank[*inptr++];
1187: if (c != 0xff) {
1188: saved = (saved << 6) | c;
1189: i++;
1190: if (i == 4) {
1.217 paf 1191: *outptr++ = (unsigned char)(saved >> 16);
1192: *outptr++ = (unsigned char)(saved >> 8);
1193: *outptr++ = (unsigned char)(saved);
1.210 paf 1194: i = 0;
1195: }
1196: }
1197: }
1198:
1199: *save = saved;
1200: *state = i;
1201:
1202: /* quick scan back for '=' on the end somewhere */
1203: /* fortunately we can drop 1 output char for each trailing = (upto 2) */
1204: i = 2;
1205: while (inptr > in && i) {
1206: inptr--;
1207: if (gmime_base64_rank[*inptr] != 0xff) {
1208: if (*inptr == '=' && outptr > out)
1209: outptr--;
1210: i--;
1211: }
1212: }
1213:
1214: /* if i != 0 then there is a truncation error! */
1215: return (outptr - out);
1216: }
1217:
1218:
1.239 misha 1219: char* pa_base64_encode(const char *in, size_t in_size){
1.252 misha 1220: size_t new_size = ((in_size / 3 + 1) * 4);
1221: new_size += new_size / (BASE64_GROUPS_IN_LINE * 4)/*new lines*/ + 1/*zero terminator*/;
1222: char* result = new(PointerFreeGC) char[new_size];
1.178 paf 1223: int state=0;
1224: int save=0;
1.183 paf 1225: #ifndef NDEBUG
1226: size_t filled=
1227: #endif
1.251 misha 1228: g_mime_utils_base64_encode_close ((const unsigned char*)in, in_size, (unsigned char*)result, &state, &save);
1229:
1230: //throw Exception(PARSER_RUNTIME, 0, "%d %d %d", in_size, new_size, filled);
1231: assert(filled <= new_size);
1.178 paf 1232:
1233: return result;
1.98 paf 1234: }
1.210 paf 1235:
1.222 misha 1236:
1.239 misha 1237: char* pa_base64_encode(const String& file_spec){
1.222 misha 1238: unsigned char* base64=0;
1239: File_base64_action_info info={&base64};
1240:
1241: file_read_action_under_lock(file_spec,
1242: "pa_base64_encode", file_base64_file_action, &info);
1243:
1244: return (char*)base64;
1245: }
1246:
1247:
1248: static void file_base64_file_action(
1.229 misha 1249: struct stat& finfo,
1250: int f,
1251: const String&, const char* /*fname*/, bool,
1252: void *context) {
1.222 misha 1253:
1254: if(finfo.st_size) {
1255: File_base64_action_info& info=*static_cast<File_base64_action_info *>(context);
1256: *info.base64=new(PointerFreeGC) unsigned char[finfo.st_size * 2 + 6];
1257: unsigned char* base64 = *info.base64;
1258: int state=0;
1259: int save=0;
1260: int nCount;
1261: do {
1262: unsigned char buffer[FILE_BUFFER_SIZE];
1263: nCount = file_block_read(f, buffer, sizeof(buffer));
1264: if( nCount ){
1265: size_t filled=g_mime_utils_base64_encode_step ((const unsigned char*)buffer, nCount, base64, &state, &save);
1266: base64+=filled;
1267: }
1268: } while(nCount > 0);
1269: g_mime_utils_base64_encode_close (0, 0, base64, &state, &save);
1270: }
1271: }
1272:
1.239 misha 1273: void pa_base64_decode(const char *in, size_t in_size, char*& result, size_t& result_size) {
1.210 paf 1274: /* wont go to more than had (overly conservative) */
1.211 paf 1275: result=new(PointerFreeGC) char[in_size+1/*terminator*/];
1.210 paf 1276: int state=0;
1277: int save=0;
1278: result_size=
1279: g_mime_utils_base64_decode_step ((const unsigned char*)in, in_size,
1280: (unsigned char*)result, &state, &save);
1281: assert(result_size <= in_size);
1.211 paf 1282: result[result_size]=0; // for text files
1.210 paf 1283: }
1.218 misha 1284:
1285:
1.221 misha 1286: int file_block_read(const int f, unsigned char* buffer, const size_t size){
1287: int nCount = read(f, buffer, size);
1288: if (nCount < 0)
1.238 misha 1289: throw Exception("file.read",
1.221 misha 1290: 0,
1291: "read failed: %s (%d)", strerror(errno), errno);
1292: return nCount;
1293: }
1294:
1.239 misha 1295: const unsigned long pa_crc32(const char *in, size_t in_size){
1.218 misha 1296: unsigned long crc32=0xFFFFFFFF;
1.220 misha 1297:
1.240 misha 1298: InitCrc32Table();
1.239 misha 1299: for(size_t i = 0; i<in_size; i++)
1300: CalcCrc32(in[i], crc32);
1.220 misha 1301:
1.218 misha 1302: return ~crc32;
1303: }
1304:
1.239 misha 1305: const unsigned long pa_crc32(const String& file_spec){
1.218 misha 1306: unsigned long crc32=0xFFFFFFFF;
1307: file_read_action_under_lock(file_spec, "crc32", file_crc32_file_action, &crc32);
1308: return ~crc32;
1309: }
1310:
1311: static void file_crc32_file_action(
1.229 misha 1312: struct stat& finfo,
1313: int f,
1314: const String&, const char* /*fname*/, bool,
1.239 misha 1315: void *context) {
1.218 misha 1316: unsigned long& crc32=*static_cast<unsigned long *>(context);
1317: if(finfo.st_size) {
1318: InitCrc32Table();
1.220 misha 1319: int nCount=0;
1.218 misha 1320: do {
1.221 misha 1321: unsigned char buffer[FILE_BUFFER_SIZE];
1322: nCount = file_block_read(f, buffer, sizeof(buffer));
1.220 misha 1323: for(int i = 0; i < nCount; i++) CalcCrc32(buffer[i], crc32);
1324: } while(nCount > 0);
1.218 misha 1325: }
1326: }
1327:
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