LibOFX: ofx_preproc.cpp Source File

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# ofx_preproc.cpp

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    00001 /***************************************************************************
    00002           ofx_preproc.cpp
    00003                              -------------------
    00004     copyright            : (C) 2002 by Benoit Gr�oir
    00005     email                : bock@step.polymtl.ca
    00006 ***************************************************************************/
    00012 /***************************************************************************
    00013  *                                                                         *
    00014  *   This program is free software; you can redistribute it and/or modify  *
    00015  *   it under the terms of the GNU General Public License as published by  *
    00016  *   the Free Software Foundation; either version 2 of the License, or     *
    00017  *   (at your option) any later version.                                   *
    00018  *                                                                         *
    00019  ***************************************************************************/
    00020 #include <iostream>
    00021 #include <fstream>
    00022 #include <stdlib.h>
    00023 #include <stdio.h>
    00024 #include <string>
    00025 #include "ParserEventGeneratorKit.h"
    00026 #include "libofx.h"
    00027 #include "messages.hh"
    00028 #include "ofx_sgml.hh"
    00029 #include "ofc_sgml.hh"
    00030 #include "ofx_preproc.hh"
    00031
    00032 using namespace std;
    00036 #ifdef MAKEFILE_DTD_PATH
    00037 const int DTD_SEARCH_PATH_NUM = 4;
    00038 #else
    00039 const int DTD_SEARCH_PATH_NUM = 3;
    00040 #endif
    00041
    00045 const char *DTD_SEARCH_PATH[DTD_SEARCH_PATH_NUM] = {
    00046 #ifdef MAKEFILE_DTD_PATH
    00047   MAKEFILE_DTD_PATH ,
    00048 #endif
    00049   "/usr/local/share/libofx/dtd/",
    00050   "/usr/share/libofx/dtd/",
    00051   "~/"};
    00052 const unsigned int READ_BUFFER_SIZE = 1024;
    00053
    00058 CFCT int ofx_proc_file(LibofxContextPtr ctx, const char * p_filename)
    00059   {
    00060   LibofxContext *libofx_context;
    00061   bool ofx_start=false;
    00062   bool ofx_end=false;
    00063
    00064   ifstream input_file;
    00065   ofstream tmp_file;
    00066   char buffer[READ_BUFFER_SIZE];
    00067   string s_buffer;
    00068   char *filenames[3];
    00069   char tmp_filename[50];
    00070
    00071   libofx_context=(LibofxContext*)ctx;
    00072
    00073   if(p_filename!=NULL&&strcmp(p_filename,"")!=0)
    00074     {
    00075     message_out(DEBUG, string("ofx_proc_file():Opening file: ")+ p_filename);
    00076
    00077     input_file.open(p_filename);
    00078     strncpy(tmp_filename,"/tmp/libofxtmpXXXXXX",50);
    00079     mkstemp(tmp_filename);
    00080     tmp_file.open(tmp_filename);
    00081
    00082     message_out(DEBUG,"ofx_proc_file(): Creating temp file: "+string(tmp_filename));
    00083     if(!input_file){
    00084       message_out(ERROR,"ofx_proc_file():Unable to open the input file "+string(p_filename));
    00085     }
    00086     else if(!tmp_file){
    00087       message_out(ERROR,"ofx_proc_file():Unable to open the output file "+string(tmp_filename));
    00088     }
    00089     else
    00090       {
    00091
    00092         do {
    00093           input_file.getline(buffer, sizeof(buffer),'\n');
    00094           //cout<<buffer<<"\n";
    00095           s_buffer.assign(buffer);
    00096           //cout<<"input_file.gcount(): "<<input_file.gcount()<<" sizeof(buffer): "<<sizeof(buffer)<<endl;
    00097           if(input_file.gcount()<(sizeof(buffer)-1))
    00098             {
    00099               s_buffer.append("\n");
    00100             }
    00101           else if( !input_file.eof()&&input_file.fail())
    00102             {
    00103               input_file.clear();
    00104             }
    00105           int ofx_start_idx;
    00106           if (ofx_start==false &&
    00107               (
    00108                (libofx_context->currentFileType()==OFX&&
    00109                 ((ofx_start_idx=s_buffer.find("<OFX>"))!=
    00110                  string::npos||(ofx_start_idx=s_buffer.find("<ofx>"))!=string::npos))
    00111                || (libofx_context->currentFileType()==OFC&&
    00112                    ((ofx_start_idx=s_buffer.find("<OFC>"))!=string::npos||
    00113                     (ofx_start_idx=s_buffer.find("<ofc>"))!=string::npos))
    00114               )
    00115              )
    00116             {
    00117               ofx_start=true;
    00118               s_buffer.erase(0,ofx_start_idx);//Fix for really broken files that don't have a newline after the header.
    00119               message_out(DEBUG,"ofx_proc_file():<OFX> or <OFC> has been found");
    00120             }
    00121
    00122           if(ofx_start==true && ofx_end==false){
    00123             s_buffer=sanitize_proprietary_tags(s_buffer);
    00124             //cout<< s_buffer<<"\n";
    00125             tmp_file.write(s_buffer.c_str(), s_buffer.length());
    00126           }
    00127
    00128           if (ofx_start==true &&
    00129               (
    00130                (libofx_context->currentFileType()==OFX &&
    00131                 ((ofx_start_idx=s_buffer.find("</OFX>"))!=string::npos ||
    00132                  (ofx_start_idx=s_buffer.find("</ofx>"))!=string::npos))
    00133                || (libofx_context->currentFileType()==OFC &&
    00134                    ((ofx_start_idx=s_buffer.find("</OFC>"))!=string::npos ||
    00135                     (ofx_start_idx=s_buffer.find("</ofc>"))!=string::npos))
    00136               )
    00137              )
    00138             {
    00139               ofx_end=true;
    00140               message_out(DEBUG,"ofx_proc_file():</OFX> or </OFC>  has been found");
    00141             }
    00142
    00143         } while(!input_file.eof()&&!input_file.bad());
    00144       }
    00145     input_file.close();
    00146     tmp_file.close();
    00147
    00148     char filename_openspdtd[255];
    00149     char filename_dtd[255];
    00150     char filename_ofx[255];
    00151     strncpy(filename_openspdtd,find_dtd(OPENSPDCL_FILENAME).c_str(),255);//The opensp sgml dtd file
    00152     if(libofx_context->currentFileType()==OFX)
    00153       {
    00154         strncpy(filename_dtd,find_dtd(OFX160DTD_FILENAME).c_str(),255);//The ofx dtd file
    00155       }
    00156     else if(libofx_context->currentFileType()==OFC)
    00157       {
    00158         strncpy(filename_dtd,find_dtd(OFCDTD_FILENAME).c_str(),255);//The ofc dtd file
    00159       }
    00160     else
    00161       {
    00162         message_out(ERROR,string("ofx_proc_file(): Error unknown file format for the OFX parser"));
    00163       }
    00164
    00165     if((string)filename_dtd!="" && (string)filename_openspdtd!="")
    00166       {
    00167         strncpy(filename_ofx,tmp_filename,255);//The processed ofx file
    00168         filenames[0]=filename_openspdtd;
    00169         filenames[1]=filename_dtd;
    00170         filenames[2]=filename_ofx;
    00171         if(libofx_context->currentFileType()==OFX)
    00172           {
    00173             ofx_proc_sgml(libofx_context, 3,filenames);
    00174           }
    00175         else if(libofx_context->currentFileType()==OFC)
    00176           {
    00177             ofc_proc_sgml(libofx_context, 3,filenames);
    00178           }
    00179         else
    00180           {
    00181             message_out(ERROR,string("ofx_proc_file(): Error unknown file format for the OFX parser"));
    00182           }
    00183         if(remove(tmp_filename)!=0)
    00184           {
    00185             message_out(ERROR,"ofx_proc_file(): Error deleting temporary file "+string(tmp_filename));
    00186           }
    00187       }
    00188     else
    00189       {
    00190         message_out(ERROR,"ofx_proc_file(): FATAL: Missing DTD, aborting");
    00191       }
    00192   }
    00193   else{
    00194     message_out(ERROR,"ofx_proc_file():No input file specified");
    00195   }
    00196   return 0;
    00197 }
    00198
    00199
    00200
    00201 CFCT int libofx_proc_buffer(LibofxContextPtr ctx,
    00202                             const char *s, unsigned int size){
    00203   ofstream tmp_file;
    00204   string s_buffer;
    00205   char *filenames[3];
    00206   char tmp_filename[50];
    00207   int pos;
    00208   LibofxContext *libofx_context;
    00209
    00210   libofx_context=(LibofxContext*)ctx;
    00211
    00212   if (size==0) {
    00213     message_out(ERROR,
    00214                 "ofx_proc_file(): bad size");
    00215     return -1;
    00216   }
    00217   s_buffer=string(s, size);
    00218
    00219   strncpy(tmp_filename,"/tmp/libofxtmpXXXXXX",50);
    00220   mkstemp(tmp_filename);
    00221   tmp_file.open(tmp_filename);
    00222
    00223   message_out(DEBUG,"ofx_proc_file(): Creating temp file: "+string(tmp_filename));
    00224   if(!tmp_file){
    00225     message_out(ERROR,"ofx_proc_file():Unable to open the output file "+string(tmp_filename));
    00226     return -1;
    00227   }
    00228
    00229   if (libofx_context->currentFileType()==OFX) {
    00230     pos=s_buffer.find("<OFX>");
    00231     if (pos==string::npos)
    00232       pos=s_buffer.find("<ofx>");
    00233   }
    00234   else if (libofx_context->currentFileType()==OFC) {
    00235     pos=s_buffer.find("<OFC>");
    00236     if (pos==string::npos)
    00237       pos=s_buffer.find("<ofc>");
    00238   }
    00239   else {
    00240     message_out(ERROR,"ofx_proc(): unknown file type");
    00241     return -1;
    00242   }
    00243   if (pos==string::npos) {
    00244     message_out(ERROR,"ofx_proc():<OFX> has not been found");
    00245     return -1;
    00246   }
    00247   else {
    00248     // erase everything before the OFX tag
    00249     s_buffer.erase(0, pos);
    00250     message_out(DEBUG,"ofx_proc_file():<OF?> has been found");
    00251   }
    00252
    00253   if (libofx_context->currentFileType()==OFX) {
    00254     pos=s_buffer.find("</OFX>");
    00255     if (pos==string::npos)
    00256       pos=s_buffer.find("</ofx>");
    00257   }
    00258   else if (libofx_context->currentFileType()==OFC) {
    00259     pos=s_buffer.find("</OFC>");
    00260     if (pos==string::npos)
    00261       pos=s_buffer.find("</ofc>");
    00262   }
    00263   else {
    00264     message_out(ERROR,"ofx_proc(): unknown file type");
    00265     return -1;
    00266   }
    00267
    00268   if (pos==string::npos) {
    00269     message_out(ERROR,"ofx_proc():</OF?> has not been found");
    00270     return -1;
    00271   }
    00272   else {
    00273     // erase everything after the /OFX tag
    00274     s_buffer.erase(pos+6);
    00275     message_out(DEBUG,"ofx_proc_file():<OFX> has been found");
    00276   }
    00277
    00278   s_buffer=sanitize_proprietary_tags(s_buffer);
    00279   tmp_file.write(s_buffer.c_str(), s_buffer.length());
    00280
    00281   tmp_file.close();
    00282
    00283   char filename_openspdtd[255];
    00284   char filename_dtd[255];
    00285   char filename_ofx[255];
    00286   strncpy(filename_openspdtd,find_dtd(OPENSPDCL_FILENAME).c_str(),255);//The opensp sgml dtd file
    00287   if(libofx_context->currentFileType()==OFX){
    00288     strncpy(filename_dtd,find_dtd(OFX160DTD_FILENAME).c_str(),255);//The ofx dtd file
    00289   }
    00290   else if(libofx_context->currentFileType()==OFC){
    00291     strncpy(filename_dtd,find_dtd(OFCDTD_FILENAME).c_str(),255);//The ofc dtd file
    00292   }
    00293   else {
    00294     message_out(ERROR,string("ofx_proc_file(): Error unknown file format for the OFX parser"));
    00295   }
    00296
    00297   if((string)filename_dtd!="" && (string)filename_openspdtd!=""){
    00298     strncpy(filename_ofx,tmp_filename,255);//The processed ofx file
    00299     filenames[0]=filename_openspdtd;
    00300     filenames[1]=filename_dtd;
    00301     filenames[2]=filename_ofx;
    00302     if(libofx_context->currentFileType()==OFX){
    00303       ofx_proc_sgml(libofx_context, 3,filenames);
    00304     }
    00305     else if(libofx_context->currentFileType()==OFC){
    00306       ofc_proc_sgml(libofx_context, 3,filenames);
    00307     }
    00308     else {
    00309       message_out(ERROR,string("ofx_proc_file(): Error unknown file format for the OFX parser"));
    00310     }
    00311     if(remove(tmp_filename)!=0){
    00312       message_out(ERROR,"ofx_proc_file(): Error deleting temporary file "+string(tmp_filename));
    00313     }
    00314   }
    00315   else {
    00316     message_out(ERROR,"ofx_proc_file(): FATAL: Missing DTD, aborting");
    00317   }
    00318
    00319   return 0;
    00320 }
    00321
    00322
    00323
    00324
    00325
    00326
    00331 string sanitize_proprietary_tags(string input_string)
    00332 {
    00333   unsigned int i;
    00334   size_t input_string_size;
    00335   bool strip=false;
    00336   bool tag_open=false;
    00337   int tag_open_idx=0;//Are we within < > ?
    00338   bool closing_tag_open=false;//Are we within </ > ?
    00339   int orig_tag_open_idx=0;
    00340   bool proprietary_tag=false; //Are we within a proprietary element?
    00341   bool proprietary_closing_tag=false;
    00342   int crop_end_idx=0;
    00343   char buffer[READ_BUFFER_SIZE]="";
    00344   char tagname[READ_BUFFER_SIZE]="";
    00345   int tagname_idx=0;
    00346   char close_tagname[READ_BUFFER_SIZE]="";
    00347
    00348   for(i=0;i<READ_BUFFER_SIZE;i++){
    00349     buffer[i]=0;
    00350     tagname[i]=0;
    00351     close_tagname[i]=0;
    00352   }
    00353
    00354   input_string_size=input_string.size();
    00355
    00356   for(i=0;i<=input_string_size;i++){
    00357     if(input_string.c_str()[i]=='<'){
    00358       tag_open=true;
    00359       tag_open_idx=i;
    00360       if(proprietary_tag==true&&input_string.c_str()[i+1]=='/'){
    00361         //We are now in a closing tag
    00362         closing_tag_open=true;
    00363         //cout<<"Comparaison: "<<tagname<<"|"<<&(input_string.c_str()[i+2])<<"|"<<strlen(tagname)<<endl;
    00364         if(strncmp(tagname,&(input_string.c_str()[i+2]),strlen(tagname))!=0){
    00365           //If it is the begining of an other tag
    00366           //cout<<"DIFFERENT!"<<endl;
    00367           crop_end_idx=i-1;
    00368           strip=true;
    00369         }
    00370         else{
    00371           //Otherwise, it is the start of the closing tag of the proprietary tag
    00372           proprietary_closing_tag=true;
    00373         }
    00374       }
    00375       else if(proprietary_tag==true){
    00376         //It is the start of a new tag, following a proprietary tag
    00377         crop_end_idx=i-1;
    00378         strip=true;
    00379       }
    00380     }
    00381     else if(input_string.c_str()[i]=='>'){
    00382       tag_open=false;
    00383       closing_tag_open=false;
    00384       tagname[tagname_idx]=0;
    00385       tagname_idx=0;
    00386       if(proprietary_closing_tag==true){
    00387         crop_end_idx=i;
    00388         strip=true;
    00389       }
    00390     }
    00391     else if(tag_open==true&&closing_tag_open==false){
    00392       if(input_string.c_str()[i]=='.'){
    00393         if(proprietary_tag!=true){
    00394           orig_tag_open_idx = tag_open_idx;
    00395           proprietary_tag=true;
    00396         }
    00397       }
    00398       tagname[tagname_idx]=input_string.c_str()[i];
    00399       tagname_idx++;
    00400     }
    00401     //cerr <<i<<endl;
    00402     if(strip==true)
    00403       {
    00404         input_string.copy(buffer,(crop_end_idx-orig_tag_open_idx)+1,orig_tag_open_idx);
    00405         message_out(INFO,"sanitize_proprietary_tags() (end tag or new tag) removed: "+string(buffer));
    00406         input_string.erase(orig_tag_open_idx,(crop_end_idx-orig_tag_open_idx)+1);
    00407         i=orig_tag_open_idx-1;
    00408         proprietary_tag=false;
    00409         proprietary_closing_tag=false;
    00410         closing_tag_open=false;
    00411         tag_open=false;
    00412         strip=false;
    00413       }
    00414
    00415   }//end for
    00416   if(proprietary_tag==true){
    00417     if(crop_end_idx==0){//no closing tag
    00418       crop_end_idx=input_string.size()-1;
    00419     }
    00420     input_string.copy(buffer,(crop_end_idx-orig_tag_open_idx)+1,orig_tag_open_idx);
    00421     message_out(INFO,"sanitize_proprietary_tags() (end of line) removed: "+string(buffer));
    00422     input_string.erase(orig_tag_open_idx,(crop_end_idx-orig_tag_open_idx)+1);
    00423   }
    00424   return input_string;
    00425 }
    00426
    00427
    00428
    00434 string find_dtd(string dtd_filename)
    00435 {
    00436   int i;
    00437   ifstream dtd_file;
    00438   string dtd_path_filename;
    00439   bool dtd_found=false;
    00440
    00441   for(i=0;i<DTD_SEARCH_PATH_NUM&&dtd_found==false;i++){
    00442     dtd_path_filename=DTD_SEARCH_PATH[i];
    00443     dtd_path_filename.append(dtd_filename);
    00444     dtd_file.clear();
    00445     dtd_file.open(dtd_path_filename.c_str());
    00446     if(!dtd_file){
    00447       message_out(DEBUG,"find_dtd():Unable to open the file "+dtd_path_filename);
    00448     }
    00449     else{
    00450       message_out(STATUS,"find_dtd():DTD found: "+dtd_path_filename);
    00451       dtd_file.close();
    00452       dtd_found=true;
    00453     }
    00454   }
    00455   if(dtd_found==false){
    00456     message_out(ERROR,"find_dtd():Unable to find the DTD named " + dtd_filename);
    00457     dtd_path_filename="";
    00458   }
    00459   return dtd_path_filename;
    00460 }
    00461
    00462