115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
/*
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File: file_xml.c
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Copyright (C) 2016 Christophe GRENIER <grenier@cgsecurity.org>
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This software is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write the Free Software Foundation, Inc., 51
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Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_xml)
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include <stdio.h>
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#include "types.h"
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#include "filegen.h"
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#include "log.h"
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static void register_header_check_xml(file_stat_t *file_stat);
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const file_hint_t file_hint_xml= {
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.extension="xml",
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.description="Symantec encrypted xml files",
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.max_filesize=PHOTOREC_MAX_FILE_SIZE,
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.recover=1,
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.enable_by_default=1,
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.register_header_check=®ister_header_check_xml
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};
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static void file_rename_xml(file_recovery_t *file_recovery)
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{
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static const char fn[]="<\0f\0i\0l\0e\0n\0a\0m\0e\0>\0";
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FILE *file;
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char buffer[4096];
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size_t lu;
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unsigned int i;
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if((file=fopen(file_recovery->filename, "rb"))==NULL)
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return;
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if((lu=fread(&buffer, 1, sizeof(buffer)-1, file)) <= 0)
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{
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fclose(file);
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return ;
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}
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fclose(file);
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buffer[lu]='\0';
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buffer[lu+1]='\0';
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buffer[4096-21]='\0';
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buffer[4096-20]='\0';
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for(i=0; i+20<lu && !(buffer[i]==0 && buffer[i+1]==0); i+=2)
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{
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if(memcmp(&buffer[i], fn, 20)==0)
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{
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const char *title=&buffer[i+20];
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int j;
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for(j=0;
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i+20+j+1<lu && !(title[j]==0 && title[j+1]==0) && !(title[j]=='<' && title[j+1]==0);
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j+=2)
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{
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}
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file_rename_unicode(file_recovery, title, j, 0, NULL, 1);
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return ;
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}
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}
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}
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static int header_check_xml(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
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{
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reset_file_recovery(file_recovery_new);
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file_recovery_new->extension=file_hint_xml.extension;
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file_recovery_new->min_filesize=512;
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file_recovery_new->file_rename=&file_rename_xml;
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return 1;
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}
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static void register_header_check_xml(file_stat_t *file_stat)
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{
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static const unsigned char xml_header[142]= {
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0x3c, 0x00, 0x3f, 0x00, 'x' , 0x00, 'm' , 0x00,
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'l' , 0x00, ' ' , 0x00, 'v' , 0x00, 'e' , 0x00,
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'r' , 0x00, 's' , 0x00, 'i' , 0x00, 'o' , 0x00,
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'n' , 0x00, 0x3d, 0x00, 0x22, 0x00, '1' , 0x00,
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'.' , 0x00, '0' , 0x00, 0x22, 0x00, ' ' , 0x00,
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'e' , 0x00, 'n' , 0x00, 'c' , 0x00, 'o' , 0x00,
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'd' , 0x00, 'i' , 0x00, 'n' , 0x00, 'g' , 0x00,
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0x3d, 0x00, 0x22, 0x00, 'U' , 0x00, 'T' , 0x00,
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'F' , 0x00, 0x2d, 0x00, '1' , 0x00, '6' , 0x00,
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0x22, 0x00, 0x3f, 0x00, 0x3e, 0x00, 0x3c, 0x00,
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0x21, 0x00, 0x2d, 0x00, 0x2d, 0x00, 'G' , 0x00,
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'E' , 0x00, 'T' , 0x00, 'R' , 0x00, 'S' , 0x00,
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'F' , 0x00, 'i' , 0x00, 'l' , 0x00, 'e' , 0x00,
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'H' , 0x00, 'e' , 0x00, 'a' , 0x00, 'd' , 0x00,
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'e' , 0x00, 'r' , 0x00, 'S' , 0x00, 'i' , 0x00,
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'z' , 0x00, 'e' , 0x00, 0x3d, 0x00, '0' , 0x00,
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'x' , 0x00, '0' , 0x00, '0' , 0x00, '0' , 0x00,
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'0' , 0x00, '0' , 0x00, '8' , 0x00
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};
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register_header_check(0, xml_header, sizeof(xml_header), &header_check_xml, file_stat);
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}
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#endif
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