diff options
Diffstat (limited to 'yamn/mails/decode.cpp')
| -rw-r--r-- | yamn/mails/decode.cpp | 558 |
1 files changed, 0 insertions, 558 deletions
diff --git a/yamn/mails/decode.cpp b/yamn/mails/decode.cpp deleted file mode 100644 index 15c23e9..0000000 --- a/yamn/mails/decode.cpp +++ /dev/null @@ -1,558 +0,0 @@ -/*
- * This code implements decoding encoded MIME header in style
- * =?iso-8859-2?Q? "User using email in central Europe characters such as =E9" ?=
- *
- * (c) majvan 2002-2004
- */
-#include "../yamn.h"
-//--------------------------------------------------------------------------------------------------
-//--------------------------------------------------------------------------------------------------
-
-struct _tcptable CodePageNamesAll[]=
-{
- {_T("ANSI"),_T(""),TRUE,CP_ACP},
- {_T("WINDOWS-1"),_T("250"),0,1250},
- {_T("WINDOWS-1"),_T("251"),0,1251},
- {_T("WINDOWS-1"),_T("252"),0,1252},
- {_T("WINDOWS-1"),_T("253"),0,1253},
- {_T("WINDOWS-1"),_T("254"),0,1254},
- {_T("WINDOWS-1"),_T("255"),0,1255},
- {_T("WINDOWS-1"),_T("256"),0,1256},
- {_T("WINDOWS-1"),_T("257"),0,1257},
- {_T("WINDOWS-1"),_T("258"),0,1258},
- {_T("CP1"),_T("250"),0,1250},
- {_T("CP1"),_T("251"),0,1251},
- {_T("CP1"),_T("252"),0,1252},
- {_T("CP1"),_T("253"),0,1253},
- {_T("CP1"),_T("254"),0,1254},
- {_T("CP1"),_T("255"),0,1255},
- {_T("CP1"),_T("256"),0,1256},
- {_T("CP1"),_T("257"),0,1257},
- {_T("CP1"),_T("258"),0,1258},
- {_T("ANSI-1"),_T("250"),0,1250},
- {_T("ANSI-1"),_T("251"),0,1251},
- {_T("ANSI-1"),_T("252"),0,1252},
- {_T("ANSI-1"),_T("253"),0,1253},
- {_T("ANSI-1"),_T("254"),0,1254},
- {_T("ANSI-1"),_T("255"),0,1255},
- {_T("ANSI-1"),_T("256"),0,1256},
- {_T("ANSI-1"),_T("257"),0,1257},
- {_T("ANSI-1"),_T("258"),0,1258},
- {_T("KOI8"),_T("-R"),0,20866},
- {_T("KOI8"),_T(""),0,20866},
- {_T("KOI8"),_T("-U"),0,21866},
- {_T("KOI8"),_T("-RU"),0,21866},
- {_T("US-"),_T("ASCII"),0,20127},
- {_T("CP"),_T("367"),0,20127},
- {_T("ASCII"),_T(""),0,20127},
- {_T("ASCII"),_T("7"),0,20127},
- {_T("ISO-8859"),_T("-1"),0,28591},
- {_T("ISO-8859"),_T("-2"),0,28592},
- {_T("ISO-8859"),_T("-3"),0,28593},
- {_T("ISO-8859"),_T("-4"),0,28594},
- {_T("ISO-8859"),_T("-5"),0,28595},
- {_T("ISO-8859"),_T("-6"),0,28596},
- {_T("ISO-8859"),_T("-7"),0,28597},
- {_T("ISO-8859"),_T("-8"),0,28598},
- {_T("ISO-8859"),_T("-9"),0,28599},
- {_T("ISO-8859"),_T("-15"),0,28605},
- {_T("ISO_8859"),_T("-1"),0,28591},
- {_T("ISO_8859"),_T("-2"),0,28592},
- {_T("ISO_8859"),_T("-3"),0,28593},
- {_T("ISO_8859"),_T("-4"),0,28594},
- {_T("ISO_8859"),_T("-5"),0,28595},
- {_T("ISO_8859"),_T("-6"),0,28596},
- {_T("ISO_8859"),_T("-7"),0,28597},
- {_T("ISO_8859"),_T("-8"),0,28598},
- {_T("ISO_8859"),_T("-9"),0,28599},
- {_T("ISO_8859"),_T("-15"),0,28605},
- {_T("ISO-"),_T("10646-USC2"),0,1200},
- {_T("ISO-2022"),_T("/2-JP"),0,50220},
- {_T("ISO-2022"),_T("-JP"),0,50221},
- {_T("ISO-2022"),_T("/JIS-JP"),0,50222},
- {_T("ISO-2022"),_T("-KR"),0,50225},
- {_T("ISO-2022"),_T("-CH(SP)"),0,50227},
- {_T("ISO-2022"),_T("-CH(TR)"),0,50229},
- {_T("UTF-"),_T("7"),0,65000},
- {_T("UTF-"),_T("8"),0,65001},
- {_T("ARAB-"),_T("TRANSPARENT"),0,710},
- {_T("ASMO-"),_T("TRANSPARENT"),0,720},
- {_T("ASMO-"),_T("449"),0,709},
- {_T("ASMO-"),_T("708"),0,708},
- {_T("BIG5"),_T(""),0,950},
- {_T("EUC-"),_T("CH(SP)"),0,51936},
- {_T("EUC-"),_T("CH(TR)"),0,51950},
- {_T("EUC-"),_T("JP"),0,51932},
- {_T("EUC-"),_T("KR"),0,51949},
- {_T("GB-"),_T("2312"),0,20936},
- {_T("GB"),_T("2312"),0,20936},
- {_T("HZGB-"),_T("2312"),0,52936},
- {_T("IBM-"),_T("037"),0,37},
- {_T("IBM-"),_T("290"),0,290},
- {_T("IBM-"),_T("437"),0,437},
- {_T("IBM-"),_T("500"),0,500},
- {_T("IBM-"),_T("775"),0,775},
- {_T("IBM-"),_T("850"),0,850},
- {_T("IBM-"),_T("852"),0,852},
- {_T("IBM-"),_T("855"),0,855},
- {_T("IBM-"),_T("857"),0,857},
- {_T("IBM-"),_T("860"),0,860},
- {_T("IBM-"),_T("861"),0,861},
- {_T("IBM-"),_T("862"),0,862},
- {_T("IBM-"),_T("863"),0,863},
- {_T("IBM-"),_T("864"),0,864},
- {_T("IBM-"),_T("865"),0,865},
- {_T("IBM-"),_T("866"),0,866},
- {_T("IBM-"),_T("869"),0,869},
- {_T("IBM-"),_T("870"),0,870},
- {_T("IBM-"),_T("875"),0,875},
- {_T("IBM-"),_T("1026"),0,1026},
- {_T("IBM-"),_T("273"),0,20273},
- {_T("IBM-"),_T("277"),0,20277},
- {_T("IBM-"),_T("278"),0,20278},
- {_T("IBM-"),_T("280"),0,20280},
- {_T("IBM-"),_T("284"),0,20284},
- {_T("IBM-"),_T("285"),0,20285},
- {_T("IBM-"),_T("290"),0,20290},
- {_T("IBM-"),_T("297"),0,20297},
- {_T("IBM-"),_T("420"),0,20420},
- {_T("IBM-"),_T("423"),0,20423},
- {_T("IBM-"),_T("871"),0,20871},
- {_T("IBM-"),_T("880"),0,20880},
- {_T("IBM-"),_T("905"),0,20905},
- {_T("IBM-"),_T("THAI"),0,20838},
- {_T("ISCII-"),_T("DEVANAGARI"),0,57002},
- {_T("ISCII-"),_T("BENGALI"),0,57003},
- {_T("ISCII-"),_T("TAMIL"),0,57004},
- {_T("ISCII-"),_T("TELUGU"),0,57005},
- {_T("ISCII-"),_T("ASSAMESE"),0,57006},
- {_T("ISCII-"),_T("ORIYA"),0,57007},
- {_T("ISCII-"),_T("KANNADA"),0,57008},
- {_T("ISCII-"),_T("MALAYALAM"),0,57009},
- {_T("ISCII-"),_T("GUJARATI"),0,57010},
- {_T("ISCII-"),_T("PUNJABI"),0,57011},
- {_T("KOR-"),_T("JOHAB"),0,1361},
- {_T("KSC-"),_T("5601"),0,1361},
- {_T("MAC-"),_T("ROMAN"),0,10000},
- {_T("MAC-"),_T("JP"),0,10001},
- {_T("MAC-"),_T("CH(SP)(BIG5)"),0,10002},
- {_T("MAC-"),_T("KR"),0,10003},
- {_T("MAC-"),_T("AR"),0,10004},
- {_T("MAC-"),_T("HW"),0,10005},
- {_T("MAC-"),_T("GR"),0,10006},
- {_T("MAC-"),_T("CY"),0,10007},
- {_T("MAC-"),_T("CH(SP)(GB2312)"),0,10008},
- {_T("MAC-"),_T("ROMANIA"),0,10010},
- {_T("MAC-"),_T("UA"),0,10017},
- {_T("MAC-"),_T("TH"),0,10021},
- {_T("MAC-"),_T("LAT2"),0,10029},
- {_T("MAC-"),_T("ICE"),0,10079},
- {_T("MAC-"),_T("TR"),0,10081},
- {_T("MAC-"),_T("CR"),0,10082},
-};
-
-int CPLENALL = (sizeof(CodePageNamesAll)/sizeof(CodePageNamesAll[0]));
-struct _tcptable *CodePageNamesSupp;
-int CPLENSUPP = 1;
-
-//Gets codepage ID from string representing charset such as "iso-8859-1"
-// input- the string
-// size- max length of input string
-int GetCharsetFromString(char *input,size_t size);
-
-//HexValue to DecValue ('a' to 10)
-// HexValue- hexa value ('a')
-// DecValue- poiner where to store dec value
-// returns 0 if not success
-int FromHexa(char HexValue,char *DecValue);
-
-//Decodes a char from Base64
-// Base64Value- input char in Base64
-// DecValue- pointer where to store the result
-// returns 0 if not success
-int FromBase64(char Base64Value,char *DecValue);
-
-//Decodes string in quoted printable
-// Src- input string
-// Dst- where to store output string
-// DstLen- how max long should be output string
-// isQ- if is "Q-encoding" modification. should be TRUE in headers
-// always returns 1
-int DecodeQuotedPrintable(char *Src,char *Dst,int DstLen, BOOL isQ);
-
-//Decodes string in base64
-// Src- input string
-// Dst- where to store output string
-// DstLen- how max long should be output string
-// returns 0 if string was not properly decoded
-int DecodeBase64(char *Src,char *Dst,int DstLen);
-
-//Converts string to unicode from string with specified codepage
-// stream- input string
-// cp- codepage of input string
-// out- pointer to new allocated memory that contains unicode string
-int ConvertStringToUnicode(char *stream,unsigned int cp,WCHAR **out);
-
-//Converts string from MIME header to unicode
-// stream- input string
-// cp- codepage of input string
-// storeto- pointer to memory that contains unicode string
-// mode- MIME_PLAIN or MIME_MAIL (MIME_MAIL deletes '"' from start and end of string)
-void ConvertCodedStringToUnicode(char *stream,WCHAR **storeto,DWORD cp,int mode);
-
-//--------------------------------------------------------------------------------------------------
-//--------------------------------------------------------------------------------------------------
-
-int GetCharsetFromString(char *input,size_t size)
-//"ISO-8859-1" to ID from table
-{
- char *pin=input;
- char *pout,*parser;
-
- if((size<1) || (parser=pout=new char[size+1])==NULL)
- return -1;
- while((*pin!=0) && (pin-input< (INT_PTR)size))
- {
- if ((*pin>='a') && (*pin<='z'))
- *parser++=*(pin++)-('a'-'A'); // make it capital
- //else if(*pin=='\"') // this is already done in ExtractFromContentType
- // *pin++; //skip the quotes if any
- else
- *parser++=*pin++;
- }
-
- *parser=(char)0;
-
-#ifdef DEBUG_DECODECODEPAGE
- DebugLog(DecodeFile,"<CodePage>%s</CodePage>",pout);
-#endif
- for(int i=0;i<CPLENALL;i++){
- size_t len = strlen(CodePageNamesAll[i].NameBase);
- if(0==strncmp(pout,CodePageNamesAll[i].NameBase,len)){
- if (0==strcmp(pout+len,CodePageNamesAll[i].NameSub)){
- delete[] pout;
- return CodePageNamesAll[i].CP;
- }
- }
- }
- delete[] pout;
- return -1; //not found
-}
-
-int FromHexa(char HexValue,char *DecValue)
-{
- if(HexValue>='0' && HexValue<='9')
- {
- *DecValue=HexValue-'0';
- return 1;
- }
- if(HexValue>='A' && HexValue<='F')
- {
- *DecValue=HexValue-'A'+10;
- return 1;
- }
- if(HexValue>='a' && HexValue<='f')
- {
- *DecValue=HexValue-'a'+10;
- return 1;
- }
- return 0;
-}
-
-int FromBase64(char Base64Value,char *DecValue)
-{
- if(Base64Value>='A' && Base64Value<='Z')
- {
- *DecValue=Base64Value-'A';
- return 1;
- }
- if(Base64Value>='a' && Base64Value<='z')
- {
- *DecValue=Base64Value-'a'+26;
- return 1;
- }
- if(Base64Value>='0' && Base64Value<='9')
- {
- *DecValue=Base64Value-'0'+52;
- return 1;
- }
- if(Base64Value=='+')
- {
- *DecValue=Base64Value-'+'+62;
- return 1;
- }
- if(Base64Value=='/')
- {
- *DecValue=Base64Value-'/'+63;
- return 1;
- }
- if(Base64Value=='=')
- {
- *DecValue=0;
- return 1;
- }
- return 0;
-}
-
-int DecodeQuotedPrintable(char *Src,char *Dst,int DstLen, BOOL isQ)
-{
-#ifdef DEBUG_DECODEQUOTED
- char *DstTemp=Dst;
- DebugLog(DecodeFile,"<Decode Quoted><Input>%s</Input>",Src);
-#endif
- for(int Counter=0;((char)*Src!=0) && DstLen && (Counter++<DstLen);Src++,Dst++)
- if(*Src=='=')
- {
- if (!isQ){
- if (Src[1]==0x0D){
- Src++; Src++;
- if (Src[0]==0x0A) Src++;
- goto CopyCharQuotedPrintable;
- }
- if (Src[1]==0x0A){
- Src++; Src++;
- goto CopyCharQuotedPrintable;
- }
- }
- char First,Second;
- if(!FromHexa(*(++Src),&First))
- {
- *Dst++='=';Src--;
- continue;
- }
- if(!FromHexa(*(++Src),&Second))
- {
- *Dst++='=';Src--;Src--;
- continue;
- }
- *Dst=(char)(First)<<4;
- *Dst+=Second;
- }
- else if(isQ && *Src=='_')
- *Dst=' ';
- else
-CopyCharQuotedPrintable: // Yeah. Bad programming stile.
- *Dst=*Src;
- *Dst=(char)0;
-#ifdef DEBUG_DECODEQUOTED
- DebugLog(DecodeFile,"<Output>%s</Output></Decode Quoted>",DstTemp);
-#endif
- return 1;
-}
-
-int DecodeBase64(char *Src,char *Dst,int DstLen)
-{
- int Result=0;
- char Locator=0,MiniResult[4];
- char *End=Dst+DstLen;
-
- MiniResult[0]=MiniResult[1]=MiniResult[2]=MiniResult[3]=0;
-
-#ifdef DEBUG_DECODEBASE64
- char *DstTemp=Dst;
- DebugLog(DecodeFile,"<Decode Base64><Input>\n%s\n</Input>\n",Src);
-#endif
- while(*Src!=0 && DstLen && Dst!=End)
- {
- if ((*Src==0x0D)||(*Src==0x0A)) {
- Src++;
- continue;
- }
- if((!(Result=FromBase64(*Src,MiniResult+Locator)) && (*Src==0)) || Locator++==3) //end_of_str || end_of_4_bytes
- {
- Locator=0; //next write to the first byte
- *Dst++=(char)((MiniResult[0]<<2) | (MiniResult[1]>>4));
- if(Dst==End) goto end; //DstLen exceeded?
- *Dst++=(char)((MiniResult[1]<<4) | (MiniResult[2]>>2));
- if(Dst==End) goto end; //someones don't like goto, but not me
- *Dst++=(char)((MiniResult[2]<<6) | MiniResult[3]);
- if(!Result && (*Src==0)) goto end; //end of string?
- MiniResult[0]=MiniResult[1]=MiniResult[2]=MiniResult[3]=0; //zero 4byte buffer for next loop
- }
- if(!Result) return 0; //unrecognised character occured
- Src++;
- }
-end:
- *Dst=0;
-#ifdef DEBUG_DECODEBASE64
- DebugLog(DecodeFile,"<Output>\n%s\n</Output></Decode Base64>",DstTemp);
-#endif
- return 1;
-}
-
-
-
-int ConvertStringToUnicode(char *stream,unsigned int cp,WCHAR **out)
-{
- CPINFO CPInfo;
- WCHAR *temp,*src=*out,*dest;
- size_t outlen;
- int streamlen,Index;
-
- //codepages, which require to have set 0 in dwFlags parameter when calling MultiByteToWideChar
- DWORD CodePagesZeroFlags[]={50220,50221,50222,50225,50227,50229,52936,54936,57002,57003,57004,57005,57006,57007,57008,57009,57010,57011,65000,65001};
-
- if((cp!=CP_ACP) && (cp!=CP_OEMCP) && (cp!=CP_MACCP) && (cp!=CP_THREAD_ACP) && (cp!=CP_SYMBOL) && (cp!=CP_UTF7) && (cp!=CP_UTF8) && !GetCPInfo(cp,&CPInfo))
- cp=CP_ACP;
-#ifdef DEBUG_DECODECODEPAGE
- DebugLog(DecodeFile,"<CodePage #>%d</CodePage #>",cp);
-#endif
-
- for(Index=0;Index<sizeof(CodePagesZeroFlags)/sizeof(CodePagesZeroFlags[0]);Index++)
- if(CodePagesZeroFlags[Index]==cp)
- {
- Index=-1;
- break;
- }
- if(Index==-1)
- streamlen=MultiByteToWideChar(cp,0,stream,-1,NULL,0);
- else
- streamlen=MultiByteToWideChar(cp,MB_USEGLYPHCHARS,stream,-1,NULL,0);
-
- if(*out!=NULL)
- outlen=wcslen(*out);
- else
- outlen=0;
- temp=new WCHAR[streamlen+outlen+1];
-
- if(*out!=NULL)
- {
- for(dest=temp;*src!=(WCHAR)0;src++,dest++) //copy old string from *out to temp
- *dest=*src;
-// *dest++=L' '; //add space?
- delete[] *out;
- }
- else
- dest=temp;
- *out=temp;
-
- if(Index==-1)
- {
- if(!MultiByteToWideChar(cp,0,stream,-1,dest,streamlen))
- return 0;
- }
- else
- {
- if(!MultiByteToWideChar(cp,MB_USEGLYPHCHARS,stream,-1,dest,streamlen))
- return 0;
- }
- return 1;
-}
-
-void ConvertCodedStringToUnicode(char *stream,WCHAR **storeto,DWORD cp,int mode)
-{
- char *start=stream,*finder,*finderend;
- char Encoding=0;
- char *DecodedResult=NULL;
-
- if(stream==NULL)
- return;
-
- while(WS(start)) start++;
- WCHAR *tempstore=0;
- if(!ConvertStringToUnicode(stream,cp,&tempstore))return;
-
- size_t tempstoreLength = wcslen(tempstore);
-
- size_t outind = 0;
- while(*start!=0){
- if(CODES(start)){
- finder=start+2;finderend=finder;
- while(!CODED(finderend) && !EOS(finderend)) finderend++;
- start = finderend;
- if(CODED(finderend))
- {
- Encoding=*(finderend+1);
- switch(Encoding)
- {
- case 'b':
- case 'B':
- case 'q':
- case 'Q':
- break;
- default:
- goto NotEncoded;
- }
- if(-1==(cp=(DWORD)GetCharsetFromString(finder,finderend-finder)))
- cp=CP_ACP;
- if(Encoding!=0)
- {
- int size,codeend;
- char *pcodeend;
-
- finder=finderend+2;
- if(CODED(finder))
- finder++;
- while(WS(finder)) finder++;
- finderend=finder;
- while(!CODEE(finderend) && !EOS(finderend)) finderend++;
- if(codeend=CODEE(finderend))
- pcodeend=finderend;
- while(WS(finderend-1)) finderend--;
- if((mode==MIME_MAIL) && (((*finder=='"') && (*(finderend-1)=='"'))))
- {
- finder++;
- finderend--;
- }
- //*finderend=(char)0;
- char * oneWordEncoded = new char[finderend-finder+1];
- strncpy(oneWordEncoded,finder,finderend-finder);
- oneWordEncoded[finderend-finder]=0;
- switch(Encoding)
- {
- case 'b':
- case 'B':
- size=(finderend-finder)*3/4+3+1+1;
- break;
- case 'q':
- case 'Q':
- size=finderend-finder+1+1;
- break;
- }
- if(DecodedResult!=NULL)
- delete[] DecodedResult;
- DecodedResult=new char[size+1];
- switch(Encoding)
- {
- case 'q':
- case 'Q':
- DecodeQuotedPrintable(oneWordEncoded,DecodedResult,size, TRUE);
- break;
- case 'b':
- case 'B':
- DecodeBase64(oneWordEncoded,DecodedResult,size);
- break;
- }
- delete[] oneWordEncoded;
- if(codeend)
- finderend=pcodeend+2;
- if(WS(finderend)) //if string continues and there's some whitespace, add space to string that is to be converted
- {
- size_t len=strlen(DecodedResult);
- DecodedResult[len]=' ';
- DecodedResult[len+1]=0;
- finderend++;
- }
- WCHAR *oneWord=0;
- if(ConvertStringToUnicode(DecodedResult,cp,&oneWord)){
- size_t len = wcslen(oneWord);
- memcpy(&tempstore[outind],oneWord,len*sizeof(WCHAR));
- outind += len;
- }
- delete oneWord;
- oneWord = 0;
- delete[] DecodedResult; DecodedResult = 0;
- start = finderend;
- } else if (!EOS(start)) start++;
- } else if (!EOS(start)) start++;
- }else{
-NotEncoded:
- tempstore[outind] = tempstore[start-stream];
- outind++;
- if (outind > tempstoreLength) break;
- start++;
- }
- }
- tempstore[outind] = 0;
- *storeto = tempstore;
-}
|