Annotation of parser3/src/main/pa_common.C, revision 1.233
1.15 paf 1: /** @file
1.16 paf 2: Parser: commonly functions.
3:
1.205 paf 4: Copyright(c) 2001-2005 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:
1.233 ! misha 29: static const char * const IDENT_COMMON_C="$Date: 2008-06-06 17:24:23 $";
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"
1.98 paf 38:
1.93 paf 39: // some maybe-undefined constants
40:
1.82 paf 41: #ifndef _O_TEXT
42: # define _O_TEXT 0
43: #endif
44: #ifndef _O_BINARY
45: # define _O_BINARY 0
1.47 paf 46: #endif
1.80 paf 47:
1.138 paf 48: #ifdef HAVE_FTRUNCATE
49: # define PA_O_TRUNC 0
50: #else
51: # ifdef _O_TRUNC
52: # define PA_O_TRUNC _O_TRUNC
53: # else
54: # error you must have either ftruncate function or _O_TRUNC bit declared
55: # endif
1.154 paf 56: #endif
1.176 paf 57:
1.154 paf 58: // defines for globals
59:
60: #define FILE_STATUS_NAME "status"
61:
62: // globals
63:
64: const String file_status_name(FILE_STATUS_NAME);
65:
66: // functions
1.127 paf 67:
1.154 paf 68: void fix_line_breaks(char *str, size_t& length) {
1.87 paf 69: //_asm int 3;
1.154 paf 70: const char* const eob=str+length;
71: char* dest=str;
1.72 parser 72: // fix DOS: \r\n -> \n
73: // fix Macintosh: \r -> \n
1.154 paf 74: char* bol=str;
1.137 paf 75: while(char* eol=(char*)memchr(bol, '\r', eob -bol)) {
1.72 parser 76: size_t len=eol-bol;
77: if(dest!=bol)
1.126 paf 78: memcpy(dest, bol, len);
1.72 parser 79: dest+=len;
1.126 paf 80: *dest++='\n';
1.72 parser 81:
1.126 paf 82: if(&eol[1]<eob && eol[1]=='\n') { // \r, \n = DOS
1.72 parser 83: bol=eol+2;
1.154 paf 84: length--;
1.126 paf 85: } else // \r, not \n = Macintosh
1.72 parser 86: bol=eol+1;
87: }
1.154 paf 88: // last piece without \r
1.72 parser 89: if(dest!=bol)
1.126 paf 90: memcpy(dest, bol, eob-bol);
1.154 paf 91: str[length]=0; // terminating
1.72 parser 92: }
1.18 paf 93:
1.154 paf 94: char* file_read_text(Request_charsets& charsets,
1.229 misha 95: const String& file_spec,
96: bool fail_on_read_problem,
97: HashStringValue* params/*, HashStringValue* * out_fields*/) {
1.154 paf 98: File_read_result file=
99: file_read(charsets, file_spec, true, params, fail_on_read_problem);
100: return file.success?file.str:0;
1.126 paf 101: }
102:
1.206 paf 103: /// these options were handled but not checked elsewhere, now check them
1.214 paf 104: int pa_get_valid_file_options_count(HashStringValue& options)
1.206 paf 105: {
106: int result=0;
107: if(options.get(PA_SQL_LIMIT_NAME))
108: result++;
109: if(options.get(PA_SQL_OFFSET_NAME))
110: result++;
111: if(options.get(PA_COLUMN_SEPARATOR_NAME))
112: result++;
113: if(options.get(PA_COLUMN_ENCLOSER_NAME))
114: result++;
1.223 misha 115: if(options.get(PA_CHARSET_NAME))
116: result++;
1.206 paf 117: return result;
118: }
119:
1.123 paf 120: #ifndef DOXYGEN
121: struct File_read_action_info {
1.154 paf 122: char **data; size_t *data_size;
1.188 paf 123: char* buf; size_t offset; size_t count;
1.126 paf 124: };
1.123 paf 125: #endif
1.154 paf 126: static void file_read_action(
1.229 misha 127: struct stat& finfo,
128: int f,
129: const String& file_spec, const char* /*fname*/, bool as_text,
130: void *context) {
1.126 paf 131: File_read_action_info& info=*static_cast<File_read_action_info *>(context);
1.188 paf 132: size_t to_read_size=info.count;
133: if(!to_read_size)
134: to_read_size=(size_t)finfo.st_size;
135: assert( !(info.buf && as_text) );
136: if(to_read_size) {
137: if(info.offset)
138: lseek(f, info.offset, SEEK_SET);
139: *info.data=info.buf
140: ? info.buf
141: : new(PointerFreeGC) char[to_read_size+(as_text?1:0)];
1.126 paf 142: *info.data_size=(size_t)read(f, *info.data, to_read_size);
1.123 paf 143:
144: if(ssize_t(*info.data_size)<0 || *info.data_size>to_read_size)
1.126 paf 145: throw Exception(0,
1.123 paf 146: &file_spec,
1.173 paf 147: "read failed: actually read %u bytes count not in [0..%u] valid range",
1.126 paf 148: *info.data_size, to_read_size);
1.123 paf 149: } else { // empty file
1.209 paf 150: // for both, text and binary: for text we need that terminator, for binary we need nonzero pointer to be able to save such files
151: *info.data=new(PointerFreeGC) char[1];
152: *(char*)(*info.data)=0;
1.123 paf 153: *info.data_size=0;
154: return;
155: }
1.126 paf 156: }
1.154 paf 157: File_read_result file_read(Request_charsets& charsets, const String& file_spec,
1.229 misha 158: bool as_text, HashStringValue *params,
159: bool fail_on_read_problem,
160: char* buf, size_t offset, size_t count) {
1.167 paf 161: File_read_result result={false, 0, 0, 0};
1.154 paf 162: if(file_spec.starts_with("http://")) {
1.203 paf 163: if(offset || count)
1.224 misha 164: throw Exception(PARSER_RUNTIME,
1.203 paf 165: 0,
166: "offset and load options are not supported for HTTP:// file load");
167:
1.126 paf 168: // fail on read problem
1.214 paf 169: File_read_http_result http=pa_internal_file_read_http(charsets, file_spec, as_text, params);
1.154 paf 170: result.success=true;
171: result.str=http.str;
172: result.length=http.length;
173: result.headers=http.headers;
1.126 paf 174: } else {
1.206 paf 175: if(params) {
1.214 paf 176: int valid_options=pa_get_valid_file_options_count(*params);
1.206 paf 177: if(valid_options!=params->count())
1.224 misha 178: throw Exception(PARSER_RUNTIME,
1.206 paf 179: 0,
180: "invalid option passed");
181: }
1.161 paf 182:
1.188 paf 183: File_read_action_info info={&result.str, &result.length,
184: buf, offset, count};
1.154 paf 185: result.success=file_read_action_under_lock(file_spec,
1.126 paf 186: "read", file_read_action, &info,
187: as_text, fail_on_read_problem);
1.223 misha 188:
189: if(result.length && as_text && params) {
190: if( Value* vcharset_name=params->get(PA_CHARSET_NAME) ) {
191: Charset asked_charset=::charsets.get(vcharset_name->as_string().
192: change_case(charsets.source(), String::CC_UPPER));
193:
194: String::C body=String::C(result.str, result.length);
195: body=Charset::transcode(body, asked_charset, charsets.source());
196:
197: result.str=const_cast<char *>(body.str); // hacking a little
198: result.length=body.length;
199: }
200: }
1.126 paf 201: }
1.123 paf 202:
1.154 paf 203: if(result.success && as_text) {
1.131 paf 204: // UTF-8 signature: EF BB BF
1.154 paf 205: if(result.length>=3) {
206: char *in=(char *)result.str;
1.159 paf 207: if(strncmp(in, "\xEF\xBB\xBF", 3)==0) {
1.154 paf 208: result.str=in+3; result.length-=3;// skip prefix
1.131 paf 209: }
210: }
211:
1.154 paf 212: fix_line_breaks((char *)(result.str), result.length);
1.123 paf 213: }
1.126 paf 214:
215: return result;
1.123 paf 216: }
217:
1.154 paf 218: #ifdef PA_SAFE_MODE
219: void check_safe_mode(struct stat finfo, const String& file_spec, const char* fname) {
220: if(finfo.st_uid/*foreign?*/!=geteuid()
221: && finfo.st_gid/*foreign?*/!=getegid())
1.224 misha 222: throw Exception(PARSER_RUNTIME,
1.154 paf 223: &file_spec,
224: "parser is in safe mode: "
225: "reading files of foreign group and user disabled "
226: "[recompile parser with --disable-safe-mode configure option], "
227: "actual filename '%s', "
228: "fuid(%d)!=euid(%d) or fgid(%d)!=egid(%d)",
229: fname,
230: finfo.st_uid, geteuid(),
231: finfo.st_gid, getegid());
232: }
233: #endif
1.149 paf 234:
1.154 paf 235: bool file_read_action_under_lock(const String& file_spec,
1.126 paf 236: const char* action_name, File_read_action action, void *context,
237: bool as_text,
1.123 paf 238: bool fail_on_read_problem) {
1.154 paf 239: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.33 paf 240: int f;
241:
242: // first open, next stat:
1.45 paf 243: // directory update of NTFS hard links performed on open.
1.33 paf 244: // ex:
245: // a.html:^test[] and b.html hardlink to a.html
246: // user inserts ! before ^test in a.html
1.126 paf 247: // directory entry of b.html in NTFS not updated at once,
1.35 paf 248: // they delay update till open, so we would receive "!^test[" string
249: // if would do stat, next open.
1.123 paf 250: // later: it seems, even this does not help sometimes
1.229 misha 251: if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) {
1.123 paf 252: try {
1.162 paf 253: if(pa_lock_shared_blocking(f)!=0)
1.126 paf 254: throw Exception("file.lock",
1.123 paf 255: &file_spec,
256: "shared lock failed: %s (%d), actual filename '%s'",
1.154 paf 257: strerror(errno), errno, fname);
1.123 paf 258:
1.124 paf 259: struct stat finfo;
260: if(stat(fname, &finfo)!=0)
261: throw Exception("file.missing", // hardly possible: we just opened it OK
262: &file_spec,
263: "stat failed: %s (%d), actual filename '%s'",
1.154 paf 264: strerror(errno), errno, fname);
1.124 paf 265:
1.140 paf 266: #ifdef PA_SAFE_MODE
1.149 paf 267: check_safe_mode(finfo, file_spec, fname);
1.105 paf 268: #endif
1.32 paf 269:
1.154 paf 270: action(finfo, f, file_spec, fname, as_text, context);
1.123 paf 271: } catch(...) {
1.162 paf 272: pa_unlock(f);close(f);
1.123 paf 273: if(fail_on_read_problem)
1.154 paf 274: rethrow;
1.123 paf 275: return false;
276: }
1.87 paf 277:
1.162 paf 278: pa_unlock(f);close(f);
1.72 parser 279: return true;
1.229 misha 280: } else {
1.118 paf 281: if(fail_on_read_problem)
1.126 paf 282: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.118 paf 283: &file_spec,
1.123 paf 284: "%s failed: %s (%d), actual filename '%s'",
1.154 paf 285: action_name, strerror(errno), errno, fname);
1.118 paf 286: return false;
287: }
1.8 paf 288: }
289:
1.202 paf 290: void create_dir_for_file(const String& file_spec) {
1.63 parser 291: size_t pos_after=1;
1.154 paf 292: size_t pos_before;
293: while((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND) {
294: mkdir(file_spec.mid(0, pos_before).cstr(String::L_FILE_SPEC), 0775);
1.63 parser 295: pos_after=pos_before+1;
296: }
297: }
298:
1.98 paf 299: bool file_write_action_under_lock(
1.28 paf 300: const String& file_spec,
1.225 misha 301: const char* action_name,
302: File_write_action action,
303: void *context,
1.126 paf 304: bool as_text,
305: bool do_append,
306: bool do_block,
1.110 paf 307: bool fail_on_lock_problem) {
1.154 paf 308: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.28 paf 309: int f;
1.80 paf 310: if(access(fname, W_OK)!=0) // no
1.126 paf 311: create_dir_for_file(file_spec);
1.50 paf 312:
1.80 paf 313: if((f=open(fname,
314: O_CREAT|O_RDWR
315: |(as_text?_O_TEXT:_O_BINARY)
1.138 paf 316: |(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) {
1.162 paf 317: if((do_block?pa_lock_exclusive_blocking(f):pa_lock_exclusive_nonblocking(f))!=0) {
1.126 paf 318: Exception e("file.lock",
1.110 paf 319: &file_spec,
320: "shared lock failed: %s (%d), actual filename '%s'",
1.154 paf 321: strerror(errno), errno, fname);
1.126 paf 322: close(f);
1.110 paf 323: if(fail_on_lock_problem)
324: throw e;
1.98 paf 325: return false;
326: }
1.96 paf 327:
1.158 paf 328: try {
1.126 paf 329: action(f, context);
1.158 paf 330: } catch(...) {
1.138 paf 331: #ifdef HAVE_FTRUNCATE
1.104 paf 332: if(!do_append)
1.125 paf 333: ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower
1.138 paf 334: #endif
1.162 paf 335: pa_unlock(f);close(f);
1.154 paf 336: rethrow;
1.158 paf 337: }
1.80 paf 338:
1.138 paf 339: #ifdef HAVE_FTRUNCATE
1.104 paf 340: if(!do_append)
1.125 paf 341: 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 342: #endif
1.162 paf 343: pa_unlock(f);close(f);
1.98 paf 344: return true;
1.80 paf 345: } else
1.126 paf 346: throw Exception(errno==EACCES?"file.access":0,
1.80 paf 347: &file_spec,
1.96 paf 348: "%s failed: %s (%d), actual filename '%s'",
1.154 paf 349: action_name, strerror(errno), errno, fname);
1.96 paf 350: // here should be nothing, see rethrow above
351: }
352:
353: #ifndef DOXYGEN
354: struct File_write_action_info {
1.154 paf 355: const char* str; size_t length;
1.126 paf 356: };
1.96 paf 357: #endif
358: static void file_write_action(int f, void *context) {
1.126 paf 359: File_write_action_info& info=*static_cast<File_write_action_info *>(context);
1.154 paf 360: if(info.length) {
361: int written=write(f, info.str, info.length);
1.116 paf 362: if(written<0)
1.126 paf 363: throw Exception(0,
364: 0,
365: "write failed: %s (%d)", strerror(errno), errno);
1.113 paf 366: }
1.96 paf 367: }
368: void file_write(
369: const String& file_spec,
1.154 paf 370: const char* data, size_t size,
1.126 paf 371: bool as_text,
1.96 paf 372: bool do_append) {
1.126 paf 373: File_write_action_info info={data, size};
1.225 misha 374:
1.98 paf 375: file_write_action_under_lock(
1.154 paf 376: file_spec,
1.225 misha 377: "write",
378: file_write_action,
379: &info,
1.154 paf 380: as_text,
381: do_append);
1.30 paf 382: }
383:
1.63 parser 384: // throws nothing! [this is required in file_move & file_delete]
1.50 paf 385: static void rmdir(const String& file_spec, size_t pos_after) {
1.154 paf 386: size_t pos_before;
387: if((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND)
1.126 paf 388: rmdir(file_spec, pos_before+1);
1.50 paf 389:
1.154 paf 390: rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::L_FILE_SPEC));
1.50 paf 391: }
1.164 paf 392: bool file_delete(const String& file_spec, bool fail_on_problem) {
1.154 paf 393: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.54 parser 394: if(unlink(fname)!=0)
1.164 paf 395: if(fail_on_problem)
1.126 paf 396: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.93 paf 397: &file_spec,
398: "unlink failed: %s (%d), actual filename '%s'",
1.154 paf 399: strerror(errno), errno, fname);
1.93 paf 400: else
401: return false;
1.50 paf 402:
1.126 paf 403: rmdir(file_spec, 1);
1.93 paf 404: return true;
1.60 parser 405: }
1.95 paf 406: void file_move(const String& old_spec, const String& new_spec) {
1.154 paf 407: const char* old_spec_cstr=old_spec.cstr(String::L_FILE_SPEC);
408: const char* new_spec_cstr=new_spec.cstr(String::L_FILE_SPEC);
1.63 parser 409:
1.126 paf 410: create_dir_for_file(new_spec);
1.63 parser 411:
1.60 parser 412: if(rename(old_spec_cstr, new_spec_cstr)!=0)
1.126 paf 413: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.60 parser 414: &old_spec,
415: "rename failed: %s (%d), actual filename '%s' to '%s'",
1.154 paf 416: strerror(errno), errno, old_spec_cstr, new_spec_cstr);
1.63 parser 417:
1.126 paf 418: rmdir(old_spec, 1);
1.31 paf 419: }
420:
1.51 paf 421:
1.126 paf 422: bool entry_exists(const char* fname, struct stat *afinfo) {
1.118 paf 423: struct stat lfinfo;
424: bool result=stat(fname, &lfinfo)==0;
425: if(afinfo)
426: *afinfo=lfinfo;
427: return result;
1.119 paf 428: }
429:
430: bool entry_exists(const String& file_spec) {
1.154 paf 431: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.126 paf 432: return entry_exists(fname, 0);
1.118 paf 433: }
434:
1.51 paf 435: static bool entry_readable(const String& file_spec, bool need_dir) {
1.154 paf 436: char* fname=file_spec.cstrm(String::L_FILE_SPEC);
1.120 paf 437: if(need_dir) {
1.126 paf 438: size_t size=strlen(fname);
1.120 paf 439: while(size) {
1.126 paf 440: char c=fname[size-1];
1.120 paf 441: if(c=='/' || c=='\\')
442: fname[--size]=0;
443: else
444: break;
445: }
446: }
1.51 paf 447: struct stat finfo;
1.118 paf 448: if(access(fname, R_OK)==0 && entry_exists(fname, &finfo)) {
1.109 paf 449: bool is_dir=(finfo.st_mode&S_IFDIR) != 0;
1.51 paf 450: return is_dir==need_dir;
451: }
452: return false;
453: }
1.215 paf 454: bool file_exist(const String& file_spec) {
1.126 paf 455: return entry_readable(file_spec, false);
1.51 paf 456: }
1.215 paf 457: bool dir_exists(const String& file_spec) {
1.126 paf 458: return entry_readable(file_spec, true);
1.65 parser 459: }
1.215 paf 460: const String* file_exist(const String& path, const String& name) {
1.154 paf 461: String& result=*new String(path);
462: result << "/";
463: result << name;
1.215 paf 464: return file_exist(result)?&result:0;
1.43 paf 465: }
466: bool file_executable(const String& file_spec) {
1.154 paf 467: return access(file_spec.cstr(String::L_FILE_SPEC), X_OK)==0;
1.44 paf 468: }
469:
1.64 parser 470: bool file_stat(const String& file_spec,
1.229 misha 471: size_t& rsize,
472: time_t& ratime,
473: time_t& rmtime,
474: time_t& rctime,
475: bool fail_on_read_problem) {
1.154 paf 476: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
477: struct stat finfo;
1.44 paf 478: if(stat(fname, &finfo)!=0)
1.64 parser 479: if(fail_on_read_problem)
1.126 paf 480: throw Exception("file.missing",
1.67 parser 481: &file_spec,
482: "getting file size failed: %s (%d), real filename '%s'",
1.154 paf 483: strerror(errno), errno, fname);
1.64 parser 484: else
485: return false;
1.58 parser 486: rsize=finfo.st_size;
487: ratime=finfo.st_atime;
488: rmtime=finfo.st_mtime;
489: rctime=finfo.st_ctime;
1.64 parser 490: return true;
1.18 paf 491: }
492:
1.126 paf 493: char* getrow(char* *row_ref, char delim) {
1.229 misha 494: char* result=*row_ref;
495: if(result) {
1.126 paf 496: *row_ref=strchr(result, delim);
1.8 paf 497: if(*row_ref)
498: *((*row_ref)++)=0;
499: else if(!*result)
500: return 0;
1.229 misha 501: }
502: return result;
1.8 paf 503: }
504:
1.126 paf 505: char* lsplit(char* string, char delim) {
1.229 misha 506: if(string) {
1.126 paf 507: char* v=strchr(string, delim);
1.8 paf 508: if(v) {
509: *v=0;
510: return v+1;
511: }
1.229 misha 512: }
513: return 0;
1.8 paf 514: }
515:
1.126 paf 516: char* lsplit(char* *string_ref, char delim) {
1.229 misha 517: char* result=*string_ref;
1.126 paf 518: char* next=lsplit(*string_ref, delim);
1.229 misha 519: *string_ref=next;
520: return result;
1.9 paf 521: }
522:
1.126 paf 523: char* rsplit(char* string, char delim) {
1.229 misha 524: if(string) {
1.126 paf 525: char* v=strrchr(string, delim);
1.18 paf 526: if(v) {
1.9 paf 527: *v=0;
528: return v+1;
529: }
1.229 misha 530: }
531: return NULL;
1.10 paf 532: }
533:
1.229 misha 534:
535: // format: %[flags][width][.precision]type http://msdn.microsoft.com/ru-ru/library/56e442dc(en-us,VS.80).aspx
536: // flags: '-', '+', ' ', '#', '0' http://msdn.microsoft.com/ru-ru/library/8aky45ct(en-us,VS.80).aspx
537: // width, precision: non negative decimal number
538: enum FormatType {
539: FormatInvalid,
540: FormatInt,
541: FormatUInt,
542: FormatDouble
543: };
544: FormatType format_type(char* fmt){
545: enum FormatState {
546: Percent,
547: Flags,
548: Width,
549: Precision,
550: Done
551: } state=Percent;
552:
553: FormatType result=FormatInvalid;
554:
555: char* pos=fmt;
556: while(char c=*(pos++)){
557: switch(state){
558: case Percent:
559: if(c=='%'){
560: state=Flags;
561: } else {
562: return FormatInvalid; // 1st char must be '%' only
563: }
564: break;
565: case Flags:
566: if(strchr("-+ #0", c)!=0){
567: break;
568: }
569: // go to the next step
570: case Width:
571: if(c=='.'){
572: state=Precision;
573: break;
574: }
575: // go to the next step
576: case Precision:
577: if(c>='0' && c<='9'){
578: if(state == Flags) state=Width; // no more flags
579: break;
580: } else if(c=='d' || c=='i'){
581: result=FormatInt;
582: } else if(strchr("feEgG", c)!=0){
583: result=FormatDouble;
584: } else if(strchr("uoxX", c)!=0){
585: result=FormatUInt;
586: } else {
587: return FormatInvalid; // invalid char
588: }
589: state=Done;
590: break;
591: case Done:
592: return FormatInvalid; // no chars allowed after 'type'
593: }
594: }
595: return result;
596: }
597:
598:
1.154 paf 599: const char* format(double value, char* fmt) {
1.229 misha 600: char local_buf[MAX_NUMBER];
1.108 paf 601: size_t size;
1.229 misha 602:
603: if(fmt && strlen(fmt)){
604: switch(format_type(fmt)){
605: case FormatDouble:
606: size=snprintf(local_buf, sizeof(local_buf), fmt, value);
607: break;
608: case FormatInt:
609: size=snprintf(local_buf, sizeof(local_buf), fmt, (int)value);
610: break;
611: case FormatUInt:
1.126 paf 612: size=snprintf(local_buf, sizeof(local_buf), fmt, (uint)value);
1.229 misha 613: break;
614: case FormatInvalid:
615: throw Exception(PARSER_RUNTIME,
616: 0,
617: "Incorrect format string '%s' was specified.", fmt);
618: }
619: } else
620: size=snprintf(local_buf, sizeof(local_buf), "%d", (int)value);
621:
622: if(size < 0 || size >= MAX_NUMBER-1){ // on win32 we manually reduce max size while printing
623: throw Exception(PARSER_RUNTIME,
624: 0,
625: "Error occure white executing snprintf with format string '%s'.", fmt);
626: }
627:
1.154 paf 628: return pa_strdup(local_buf, size);
1.12 paf 629: }
630:
1.36 paf 631: size_t stdout_write(const void *buf, size_t size) {
1.12 paf 632: #ifdef WIN32
1.187 paf 633: size_t to_write = size;
1.12 paf 634: do{
1.154 paf 635: int chunk_written=fwrite(buf, 1, min((size_t)8*0x400, size), stdout);
1.12 paf 636: if(chunk_written<=0)
637: break;
638: size-=chunk_written;
1.36 paf 639: buf=((const char*)buf)+chunk_written;
1.126 paf 640: } while(size>0);
1.12 paf 641:
1.187 paf 642: return to_write-size;
1.12 paf 643: #else
1.126 paf 644: return fwrite(buf, 1, size, stdout);
1.12 paf 645: #endif
1.2 paf 646: }
1.14 paf 647:
1.229 misha 648: enum EscapeState {
649: EscapeRest,
650: EscapeFirst,
651: EscapeSecond,
652: EscapeUnicode
653: };
654: /*
1.154 paf 655: char* unescape_chars(const char* cp, int len) {
656: char* s=new(PointerFreeGC) char[len + 1];
1.229 misha 657: EscapeState escapeState=EscapeRest;
1.216 paf 658: uint escapedValue=0;
1.14 paf 659: int srcPos=0;
660: int dstPos=0;
661: while(srcPos < len) {
1.193 paf 662: uchar ch=(uchar)cp[srcPos];
1.14 paf 663: switch(escapeState) {
664: case EscapeRest:
1.229 misha 665: if(ch=='%') {
666: escapeState=EscapeFirst;
667: } else if(ch=='+'){
668: s[dstPos++]=' ';
669: } else {
670: s[dstPos++]=ch;
671: }
672: break;
1.14 paf 673: case EscapeFirst:
1.229 misha 674: escapedValue=hex_value[ch] << 4;
675: escapeState=EscapeSecond;
676: break;
1.14 paf 677: case EscapeSecond:
1.229 misha 678: escapedValue +=hex_value[ch];
679: s[dstPos++]=(char)escapedValue;
680: escapeState=EscapeRest;
681: break;
1.14 paf 682: }
1.126 paf 683: srcPos++;
1.14 paf 684: }
685: s[dstPos]=0;
686: return s;
1.24 paf 687: }
1.229 misha 688: */
689:
1.232 misha 690: char* unescape_chars(const char* cp, int len, Charset* charset){
1.230 misha 691: char* s=new(PointerFreeGC) char[len + 1]; // enough (%uXXXX==6 bytes, max utf-8 char length==6 bytes)
692: char* dst=s;
1.229 misha 693: EscapeState escapeState=EscapeRest;
694: uint escapedValue=0;
695: int srcPos=0;
1.230 misha 696: short int jsCnt=0;
1.229 misha 697: while(srcPos < len) {
698: uchar c=(uchar)cp[srcPos];
699: if(c=='%'){
700: escapeState=EscapeFirst;
701: } else {
702: switch(escapeState) {
703: case EscapeRest:
704: if(c=='+'){
1.230 misha 705: *dst++=' ';
1.229 misha 706: } else {
1.230 misha 707: *dst++=c;
1.229 misha 708: }
709: break;
710: case EscapeFirst:
1.232 misha 711: if(charset && c=='u'){
1.229 misha 712: // escaped unicode value: %u0430
713: jsCnt=0;
714: escapedValue=0;
715: escapeState=EscapeUnicode;
716: } else {
1.231 misha 717: if(isxdigit(c)){
1.229 misha 718: escapedValue=hex_value[c] << 4;
719: escapeState=EscapeSecond;
720: } else {
1.230 misha 721: *dst++=c;
1.229 misha 722: escapeState=EscapeRest;
723: }
724: }
725: break;
726: case EscapeSecond:
1.231 misha 727: if(isxdigit(c)){
1.229 misha 728: escapedValue+=hex_value[c];
1.230 misha 729: *dst++=(char)escapedValue;
1.229 misha 730: }
731: escapeState=EscapeRest;
732: break;
733: case EscapeUnicode:
1.231 misha 734: if(isxdigit(c)){
1.229 misha 735: escapedValue=(escapedValue << 4) + hex_value[c];
736: if(++jsCnt==4){
1.230 misha 737: // transcode utf8 char to client charset (we can lost some chars here)
1.232 misha 738: charset->store_Char((XMLByte*&)dst, (XMLCh)escapedValue, '?');
1.229 misha 739: escapeState=EscapeRest;
740: }
741: } else {
742: // not full unicode value
743: escapeState=EscapeRest;
744: }
745: break;
746: }
747: }
748:
749: srcPos++;
750: }
751:
1.230 misha 752: *dst=0; // zero-termination
1.229 misha 753: return s;
754: }
1.24 paf 755:
756: #ifdef WIN32
1.126 paf 757: void back_slashes_to_slashes(char* s) {
1.24 paf 758: if(s)
759: for(; *s; s++)
760: if(*s=='\\')
1.126 paf 761: *s='/';
1.24 paf 762: }
1.42 paf 763: /*
1.126 paf 764: void slashes_to_back_slashes(char* s) {
1.42 paf 765: if(s)
766: for(; *s; s++)
767: if(*s=='/')
1.126 paf 768: *s='\\';
1.42 paf 769: }
770: */
1.24 paf 771: #endif
1.41 paf 772:
1.231 misha 773: bool StrStartFromNC(const char* str, const char* substr, bool equal){
1.41 paf 774: while(true) {
1.231 misha 775: if(!(*substr)){
776: if(!(*str))
1.41 paf 777: return true;
778: else
1.231 misha 779: return !equal;
780: }
781: if(!(*str))
782: return false;
783: if(isalpha((unsigned char)*str)) {
784: if(tolower((unsigned char)*str)!=tolower((unsigned char)*substr))
1.41 paf 785: return false;
1.231 misha 786: } else if((*str) != (*substr))
1.41 paf 787: return false;
1.231 misha 788: str++;
789: substr++;
1.41 paf 790: }
1.57 parser 791: }
792:
1.232 misha 793: size_t strpos(const char *str, const char *substr) {
794: const char *p = strstr(str, substr);
795: return (p==0)?STRING_NOT_FOUND:p-str;
796: }
797:
798: // content-type: xxx; charset=WE-NEED-THIS
799: // content-type: xxx; charset="WE-NEED-THIS"
800: // content-type: xxx; charset="WE-NEED-THIS";
1.233 ! misha 801: Charset* detect_charset(const char* content_type){
! 802: if(content_type){
! 803: size_t len=strlen(content_type);
! 804: char* CONTENT_TYPE=new(PointerFreeGC) char[len+1];
! 805: memcpy(CONTENT_TYPE, content_type, len);
! 806: for(char *p=CONTENT_TYPE; *p; p++)
! 807: *p=(char)toupper((unsigned char)*p);
! 808:
! 809: if(const char* begin=strstr(CONTENT_TYPE, "CHARSET=")){
! 810: begin+=8; // skip "CHARSET="
! 811: char* end=0;
! 812: if(*begin && (*begin=='"' || *begin =='\'')){
! 813: char quote=*begin;
! 814: begin++;
! 815: end=(char*)strchr(begin, quote);
! 816: }
! 817: if(!end)
! 818: end=(char*)strchr(begin, ';');
! 819:
! 820: size_t len;
! 821: if(end){
! 822: *end=0; // terminator
! 823: len=end-begin;
! 824: } else {
! 825: len=strlen(begin);
! 826: }
! 827:
! 828: String::Body NAME=String::Body(begin, len);
! 829: return &charsets.get(NAME);
1.232 misha 830: }
831: }
832: return 0;
833: }
834:
1.233 ! misha 835: Charset* detect_charset(Charset& source_charset, const String& content_type){
! 836: const String& CONTENT_TYPE=content_type.change_case(source_charset, String::CC_UPPER);
! 837: size_t begin=CONTENT_TYPE.pos("CHARSET=");
! 838: if(begin!=STRING_NOT_FOUND) {
! 839: begin+=8; // skip "CHARSET="
! 840: size_t end=STRING_NOT_FOUND;
! 841:
! 842: if(CONTENT_TYPE.pos('"', begin)==begin){
! 843: begin++;
! 844: end=CONTENT_TYPE.pos('"', begin);
! 845: } else if(CONTENT_TYPE.pos('\'', begin)==begin){
! 846: begin++;
! 847: end=CONTENT_TYPE.pos('\'', begin);
! 848: }
! 849:
! 850: if(end==STRING_NOT_FOUND)
! 851: end=CONTENT_TYPE.pos(';', begin);
! 852:
! 853: if(end==STRING_NOT_FOUND)
! 854: end=CONTENT_TYPE.length();
1.232 misha 855:
1.233 ! misha 856: const String::Body NAME=CONTENT_TYPE.mid(begin, end);
! 857: return &charsets.get(NAME);
! 858: }
! 859: return 0;
1.232 misha 860: }
861:
862:
1.84 paf 863: static bool isLeap(int year) {
1.229 misha 864: return !(
865: (year % 4) || ((year % 400) && !(year % 100))
866: );
1.57 parser 867: }
868:
869: int getMonthDays(int year, int month) {
1.220 misha 870: static int monthDays[]={
1.229 misha 871: 31,
872: 28,
873: 31,
874: 30,
875: 31,
876: 30,
877: 31,
878: 31,
879: 30,
880: 31,
881: 30,
882: 31
883: };
1.228 misha 884: return (month == 1 /* january -- 0 */ && isLeap(year)) ? 29 : monthDays[month];
1.41 paf 885: }
1.69 parser 886:
1.226 misha 887: int remove_crlf(char* start, char* end) {
888: char* from=start;
889: char* to=start;
890: bool skip=false;
891: while(from < end){
892: switch(*from){
893: case '\n':
894: case '\r':
895: case '\t':
896: case ' ':
897: if(!skip){
898: *to=' ';
899: to++;
900: skip=true;
901: }
902: break;
903: default:
904: if(from != to)
905: *to=*from;
906: to++;
907: skip=false;
1.69 parser 908: }
1.226 misha 909: from++;
910: }
911: return to-start;
1.91 paf 912: }
913:
914:
915: /// must be last in this file
916: #undef vsnprintf
1.126 paf 917: int __vsnprintf(char* b, size_t s, const char* f, va_list l) {
1.91 paf 918: if(!s)
919: return 0;
920:
921: int r;
922: // note: on win32& maybe somewhere else
923: // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing
924: --s;
1.172 paf 925:
926: // clients do not check for negative 's', feature: ignore such prints
927: if((ssize_t)s<0)
928: return 0;
929:
1.91 paf 930: #if _MSC_VER
931: /*
932: win32:
933: mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001APR\1033\vccore.chm::/html/_crt__vsnprintf.2c_._vsnwprintf.htm
934:
1.154 paf 935: if the number of bytes to write exceeds buffer, then count bytes are written and Ö1 is returned
1.91 paf 936: */
1.126 paf 937: r=_vsnprintf(b, s, f, l);
1.91 paf 938: if(r<0)
939: r=s;
940: #else
1.126 paf 941: r=vsnprintf(b, s, f, l);
1.91 paf 942: /*
943: solaris:
944: man vsnprintf
945:
946: The snprintf() function returns the number of characters
947: formatted, that is, the number of characters that would have
948: been written to the buffer if it were large enough. If the
949: value of n is 0 on a call to snprintf(), an unspecified
950: value less than 1 is returned.
951: */
952:
953: if(r<0)
954: r=0;
1.167 paf 955: else if((size_t)r>s)
1.91 paf 956: r=s;
957: #endif
958: b[r]=0;
959: return r;
960: }
961:
1.126 paf 962: int __snprintf(char* b, size_t s, const char* f, ...) {
1.91 paf 963: va_list l;
1.126 paf 964: va_start(l, f);
965: int r=__vsnprintf(b, s, f, l);
966: va_end(l);
1.91 paf 967: return r;
1.178 paf 968: }
969:
970: /* mime64 functions are from libgmime[http://spruce.sourceforge.net/gmime/] lib */
971: /*
972: * Authors: Michael Zucchi <notzed@helixcode.com>
973: * Jeffrey Stedfast <fejj@helixcode.com>
974: *
975: * Copyright 2000 Helix Code, Inc. (www.helixcode.com)
976: *
977: * This program is free software; you can redistribute it and/or modify
978: * it under the terms of the GNU General Public License as published by
979: * the Free Software Foundation; either version 2 of the License, or
980: * (at your option) any later version.
981: *
982: * This program is distributed in the hope that it will be useful,
983: * but WITHOUT ANY WARRANTY; without even the implied warranty of
984: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
985: * GNU General Public License for more details.
986: *
987: * You should have received a copy of the GNU General Public License
988: * along with this program; if not, write to the Free Software
989: * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
990: *
991: */
992: static char *base64_alphabet =
993: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
994:
995: /**
996: * g_mime_utils_base64_encode_step:
997: * @in: input stream
998: * @inlen: length of the input
999: * @out: output string
1000: * @state: holds the number of bits that are stored in @save
1001: * @save: leftover bits that have not yet been encoded
1002: *
1003: * Base64 encodes a chunk of data. Performs an 'encode step', only
1004: * encodes blocks of 3 characters to the output at a time, saves
1005: * left-over state in state and save (initialise to 0 on first
1006: * invocation).
1007: *
1008: * Returns the number of bytes encoded.
1009: **/
1010: static size_t
1011: g_mime_utils_base64_encode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1012: {
1.186 paf 1013: register const unsigned char *inptr;
1.178 paf 1014: register unsigned char *outptr;
1015:
1016: if (inlen <= 0)
1017: return 0;
1018:
1019: inptr = in;
1020: outptr = out;
1021:
1022: if (inlen + ((unsigned char *)save)[0] > 2) {
1023: const unsigned char *inend = in + inlen - 2;
1024: register int c1 = 0, c2 = 0, c3 = 0;
1025: register int already;
1026:
1027: already = *state;
1028:
1029: switch (((char *)save)[0]) {
1030: case 1: c1 = ((unsigned char *)save)[1]; goto skip1;
1031: case 2: c1 = ((unsigned char *)save)[1];
1032: c2 = ((unsigned char *)save)[2]; goto skip2;
1033: }
1034:
1035: /* yes, we jump into the loop, no i'm not going to change it, its beautiful! */
1036: while (inptr < inend) {
1037: c1 = *inptr++;
1038: skip1:
1039: c2 = *inptr++;
1040: skip2:
1041: c3 = *inptr++;
1042: *outptr++ = base64_alphabet [c1 >> 2];
1043: *outptr++ = base64_alphabet [(c2 >> 4) | ((c1 & 0x3) << 4)];
1044: *outptr++ = base64_alphabet [((c2 & 0x0f) << 2) | (c3 >> 6)];
1045: *outptr++ = base64_alphabet [c3 & 0x3f];
1046: /* this is a bit ugly ... */
1047: if ((++already) >= 19) {
1048: *outptr++ = '\n';
1049: already = 0;
1050: }
1051: }
1052:
1053: ((unsigned char *)save)[0] = 0;
1054: inlen = 2 - (inptr - inend);
1055: *state = already;
1056: }
1057:
1058: //d(printf ("state = %d, inlen = %d\n", (int)((char *)save)[0], inlen));
1059:
1060: if (inlen > 0) {
1061: register char *saveout;
1062:
1063: /* points to the slot for the next char to save */
1064: saveout = & (((char *)save)[1]) + ((char *)save)[0];
1065:
1066: /* inlen can only be 0 1 or 2 */
1067: switch (inlen) {
1068: case 2: *saveout++ = *inptr++;
1069: case 1: *saveout++ = *inptr++;
1070: }
1.216 paf 1071: *(char *)save = *(char *)save+(char)inlen;
1.178 paf 1072: }
1073:
1074: /*d(printf ("mode = %d\nc1 = %c\nc2 = %c\n",
1075: (int)((char *)save)[0],
1076: (int)((char *)save)[1],
1077: (int)((char *)save)[2]));*/
1078:
1079: return (outptr - out);
1080: }
1081:
1082: /**
1083: * g_mime_utils_base64_encode_close:
1084: * @in: input stream
1085: * @inlen: length of the input
1086: * @out: output string
1087: * @state: holds the number of bits that are stored in @save
1088: * @save: leftover bits that have not yet been encoded
1089: *
1090: * Base64 encodes the input stream to the output stream. Call this
1091: * when finished encoding data with g_mime_utils_base64_encode_step to
1092: * flush off the last little bit.
1093: *
1094: * Returns the number of bytes encoded.
1095: **/
1096: static size_t
1097: g_mime_utils_base64_encode_close (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1098: {
1099: unsigned char *outptr = out;
1100: int c1, c2;
1101:
1102: if (inlen > 0)
1103: outptr += g_mime_utils_base64_encode_step (in, inlen, outptr, state, save);
1104:
1105: c1 = ((unsigned char *)save)[1];
1106: c2 = ((unsigned char *)save)[2];
1107:
1108: switch (((unsigned char *)save)[0]) {
1109: case 2:
1110: outptr[2] = base64_alphabet [(c2 & 0x0f) << 2];
1111: goto skip;
1112: case 1:
1113: outptr[2] = '=';
1114: skip:
1115: outptr[0] = base64_alphabet [c1 >> 2];
1116: outptr[1] = base64_alphabet [c2 >> 4 | ((c1 & 0x3) << 4)];
1117: outptr[3] = '=';
1118: outptr += 4;
1119: break;
1120: }
1121:
1122: *outptr++ = 0;
1123:
1124: *save = 0;
1125: *state = 0;
1126:
1127: return (outptr - out);
1128: }
1129:
1.210 paf 1130: static unsigned char gmime_base64_rank[256] = {
1131: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1132: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1133: 255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63,
1134: 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255, 0,255,255,
1135: 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
1136: 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255,
1137: 255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
1138: 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255,
1139: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1140: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1141: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1142: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1143: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1144: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1145: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1146: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1147: };
1148:
1149: /**
1150: * g_mime_utils_base64_decode_step:
1151: * @in: input stream
1152: * @inlen: max length of data to decode
1153: * @out: output stream
1154: * @state: holds the number of bits that are stored in @save
1155: * @save: leftover bits that have not yet been decoded
1156: *
1157: * Decodes a chunk of base64 encoded data.
1158: *
1159: * Returns the number of bytes decoded (which have been dumped in @out).
1160: **/
1161: size_t
1162: g_mime_utils_base64_decode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1163: {
1.213 paf 1164: const unsigned char *inptr;
1165: unsigned char *outptr;
1.210 paf 1166: const unsigned char *inend;
1.213 paf 1167: int saved;
1.210 paf 1168: unsigned char c;
1169: int i;
1170:
1171: inend = in + inlen;
1172: outptr = out;
1173:
1174: /* convert 4 base64 bytes to 3 normal bytes */
1175: saved = *save;
1176: i = *state;
1177: inptr = in;
1178: while (inptr < inend) {
1179: c = gmime_base64_rank[*inptr++];
1180: if (c != 0xff) {
1181: saved = (saved << 6) | c;
1182: i++;
1183: if (i == 4) {
1.217 paf 1184: *outptr++ = (unsigned char)(saved >> 16);
1185: *outptr++ = (unsigned char)(saved >> 8);
1186: *outptr++ = (unsigned char)(saved);
1.210 paf 1187: i = 0;
1188: }
1189: }
1190: }
1191:
1192: *save = saved;
1193: *state = i;
1194:
1195: /* quick scan back for '=' on the end somewhere */
1196: /* fortunately we can drop 1 output char for each trailing = (upto 2) */
1197: i = 2;
1198: while (inptr > in && i) {
1199: inptr--;
1200: if (gmime_base64_rank[*inptr] != 0xff) {
1201: if (*inptr == '=' && outptr > out)
1202: outptr--;
1203: i--;
1204: }
1205: }
1206:
1207: /* if i != 0 then there is a truncation error! */
1208: return (outptr - out);
1209: }
1210:
1211:
1212: char* pa_base64_encode(const char *in, size_t in_size)
1.178 paf 1213: {
1214: /* wont go to more than 2x size (overly conservative) */
1.210 paf 1215: char* result=new(PointerFreeGC) char[in_size * 2 + 6];
1.178 paf 1216: int state=0;
1217: int save=0;
1.183 paf 1218: #ifndef NDEBUG
1219: size_t filled=
1220: #endif
1.210 paf 1221: g_mime_utils_base64_encode_close ((const unsigned char*)in, in_size,
1.178 paf 1222: (unsigned char*)result, &state, &save);
1.210 paf 1223: assert(filled <= in_size * 2 + 6);
1.178 paf 1224:
1225: return result;
1.98 paf 1226: }
1.210 paf 1227:
1.222 misha 1228:
1229: char* pa_base64_encode(const String& file_spec)
1230: {
1231: unsigned char* base64=0;
1232: File_base64_action_info info={&base64};
1233:
1234: file_read_action_under_lock(file_spec,
1235: "pa_base64_encode", file_base64_file_action, &info);
1236:
1237: return (char*)base64;
1238: }
1239:
1240:
1241: static void file_base64_file_action(
1.229 misha 1242: struct stat& finfo,
1243: int f,
1244: const String&, const char* /*fname*/, bool,
1245: void *context) {
1.222 misha 1246:
1247: if(finfo.st_size) {
1248: File_base64_action_info& info=*static_cast<File_base64_action_info *>(context);
1249: *info.base64=new(PointerFreeGC) unsigned char[finfo.st_size * 2 + 6];
1250: unsigned char* base64 = *info.base64;
1251: int state=0;
1252: int save=0;
1253: int nCount;
1254: do {
1255: unsigned char buffer[FILE_BUFFER_SIZE];
1256: nCount = file_block_read(f, buffer, sizeof(buffer));
1257: if( nCount ){
1258: size_t filled=g_mime_utils_base64_encode_step ((const unsigned char*)buffer, nCount, base64, &state, &save);
1259: base64+=filled;
1260: }
1261: } while(nCount > 0);
1262: g_mime_utils_base64_encode_close (0, 0, base64, &state, &save);
1263: }
1264: }
1265:
1.211 paf 1266: void pa_base64_decode(const char *in, size_t in_size, char*& result, size_t& result_size)
1.210 paf 1267: {
1268: /* wont go to more than had (overly conservative) */
1.211 paf 1269: result=new(PointerFreeGC) char[in_size+1/*terminator*/];
1.210 paf 1270: int state=0;
1271: int save=0;
1272: result_size=
1273: g_mime_utils_base64_decode_step ((const unsigned char*)in, in_size,
1274: (unsigned char*)result, &state, &save);
1275: assert(result_size <= in_size);
1.211 paf 1276: result[result_size]=0; // for text files
1.210 paf 1277: }
1.218 misha 1278:
1279:
1.221 misha 1280: int file_block_read(const int f, unsigned char* buffer, const size_t size){
1281: int nCount = read(f, buffer, size);
1282: if (nCount < 0)
1283: throw Exception(0,
1284: 0,
1285: "read failed: %s (%d)", strerror(errno), errno);
1286: return nCount;
1287: }
1288:
1.218 misha 1289: const unsigned long pa_crc32(const char *in, size_t in_size)
1290: {
1291: unsigned long crc32=0xFFFFFFFF;
1.220 misha 1292:
1.218 misha 1293: InitCrc32Table();
1294: for(size_t i = 0; i < in_size; i++) CalcCrc32(in[i], crc32);
1.220 misha 1295:
1.218 misha 1296: return ~crc32;
1297: }
1298:
1299: const unsigned long pa_crc32(const String& file_spec)
1300: {
1301: unsigned long crc32=0xFFFFFFFF;
1302: file_read_action_under_lock(file_spec, "crc32", file_crc32_file_action, &crc32);
1303: return ~crc32;
1304: }
1305:
1306: static void file_crc32_file_action(
1.229 misha 1307: struct stat& finfo,
1308: int f,
1309: const String&, const char* /*fname*/, bool,
1310: void *context)
1.218 misha 1311: {
1312: unsigned long& crc32=*static_cast<unsigned long *>(context);
1313: if(finfo.st_size) {
1314: InitCrc32Table();
1.220 misha 1315: int nCount=0;
1.218 misha 1316: do {
1.221 misha 1317: unsigned char buffer[FILE_BUFFER_SIZE];
1318: nCount = file_block_read(f, buffer, sizeof(buffer));
1.220 misha 1319: for(int i = 0; i < nCount; i++) CalcCrc32(buffer[i], crc32);
1320: } while(nCount > 0);
1.218 misha 1321: }
1322: }
1323:
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