Home | History | Annotate | Download | only in javascript 
      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #include "fpdfsdk/src/javascript/util.h"
      8 
      9 #include <time.h>
     10 
     11 #include "core/include/fxcrt/fx_ext.h"
     12 #include "fpdfsdk/include/javascript/IJavaScript.h"
     13 #include "fpdfsdk/src/javascript/JS_Context.h"
     14 #include "fpdfsdk/src/javascript/JS_Define.h"
     15 #include "fpdfsdk/src/javascript/JS_EventHandler.h"
     16 #include "fpdfsdk/src/javascript/JS_Object.h"
     17 #include "fpdfsdk/src/javascript/JS_Runtime.h"
     18 #include "fpdfsdk/src/javascript/JS_Value.h"
     19 #include "fpdfsdk/src/javascript/PublicMethods.h"
     20 #include "fpdfsdk/src/javascript/resource.h"
     21 
     22 #if _FX_OS_ == _FX_ANDROID_
     23 #include <ctype.h>
     24 #endif
     25 
     26 BEGIN_JS_STATIC_CONST(CJS_Util)
     27 END_JS_STATIC_CONST()
     28 
     29 BEGIN_JS_STATIC_PROP(CJS_Util)
     30 END_JS_STATIC_PROP()
     31 
     32 BEGIN_JS_STATIC_METHOD(CJS_Util)
     33 JS_STATIC_METHOD_ENTRY(printd)
     34 JS_STATIC_METHOD_ENTRY(printf)
     35 JS_STATIC_METHOD_ENTRY(printx)
     36 JS_STATIC_METHOD_ENTRY(scand)
     37 JS_STATIC_METHOD_ENTRY(byteToChar)
     38 END_JS_STATIC_METHOD()
     39 
     40 IMPLEMENT_JS_CLASS(CJS_Util, util)
     41 
     42 util::util(CJS_Object* pJSObject) : CJS_EmbedObj(pJSObject) {}
     43 
     44 util::~util() {
     45 }
     46 
     47 struct stru_TbConvert {
     48   const FX_WCHAR* lpszJSMark;
     49   const FX_WCHAR* lpszCppMark;
     50 };
     51 
     52 const stru_TbConvert fcTable[] = {
     53     {L"mmmm", L"%B"},
     54     {L"mmm", L"%b"},
     55     {L"mm", L"%m"},
     56     //"m"
     57     {L"dddd", L"%A"},
     58     {L"ddd", L"%a"},
     59     {L"dd", L"%d"},
     60     //"d",   "%w",
     61     {L"yyyy", L"%Y"},
     62     {L"yy", L"%y"},
     63     {L"HH", L"%H"},
     64     //"H"
     65     {L"hh", L"%I"},
     66     //"h"
     67     {L"MM", L"%M"},
     68     //"M"
     69     {L"ss", L"%S"},
     70     //"s
     71     {L"TT", L"%p"},
     72 //"t"
     73 #if defined(_WIN32)
     74     {L"tt", L"%p"},
     75     {L"h", L"%#I"},
     76 #else
     77     {L"tt", L"%P"},
     78     {L"h", L"%l"},
     79 #endif
     80 };
     81 
     82 #define UTIL_INT 0
     83 #define UTIL_DOUBLE 1
     84 #define UTIL_STRING 2
     85 
     86 int util::ParstDataType(std::wstring* sFormat) {
     87   bool bPercent = FALSE;
     88   for (size_t i = 0; i < sFormat->length(); ++i) {
     89     wchar_t c = (*sFormat)[i];
     90     if (c == L'%') {
     91       bPercent = true;
     92       continue;
     93     }
     94 
     95     if (bPercent) {
     96       if (c == L'c' || c == L'C' || c == L'd' || c == L'i' || c == L'o' ||
     97           c == L'u' || c == L'x' || c == L'X') {
     98         return UTIL_INT;
     99       }
    100       if (c == L'e' || c == L'E' || c == L'f' || c == L'g' || c == L'G') {
    101         return UTIL_DOUBLE;
    102       }
    103       if (c == L's' || c == L'S') {
    104         // Map s to S since we always deal internally
    105         // with wchar_t strings.
    106         (*sFormat)[i] = L'S';
    107         return UTIL_STRING;
    108       }
    109       if (c == L'.' || c == L'+' || c == L'-' || c == L'#' || c == L' ' ||
    110           FXSYS_iswdigit(c)) {
    111         continue;
    112       }
    113       break;
    114     }
    115   }
    116 
    117   return -1;
    118 }
    119 
    120 FX_BOOL util::printf(IJS_Context* cc,
    121                      const std::vector<CJS_Value>& params,
    122                      CJS_Value& vRet,
    123                      CFX_WideString& sError) {
    124   int iSize = params.size();
    125   if (iSize < 1)
    126     return FALSE;
    127   std::wstring c_ConvChar(params[0].ToCFXWideString().c_str());
    128   std::vector<std::wstring> c_strConvers;
    129   int iOffset = 0;
    130   int iOffend = 0;
    131   c_ConvChar.insert(c_ConvChar.begin(), L'S');
    132   while (iOffset != -1) {
    133     iOffend = c_ConvChar.find(L"%", iOffset + 1);
    134     std::wstring strSub;
    135     if (iOffend == -1)
    136       strSub = c_ConvChar.substr(iOffset);
    137     else
    138       strSub = c_ConvChar.substr(iOffset, iOffend - iOffset);
    139     c_strConvers.push_back(strSub);
    140     iOffset = iOffend;
    141   }
    142 
    143   std::wstring c_strResult;
    144 
    145   // for(int iIndex = 1;iIndex < params.size();iIndex++)
    146   std::wstring c_strFormat;
    147   for (int iIndex = 0; iIndex < (int)c_strConvers.size(); iIndex++) {
    148     c_strFormat = c_strConvers[iIndex];
    149     if (iIndex == 0) {
    150       c_strResult = c_strFormat;
    151       continue;
    152     }
    153 
    154     CFX_WideString strSegment;
    155     if (iIndex >= iSize) {
    156       c_strResult += c_strFormat;
    157       continue;
    158     }
    159 
    160     switch (ParstDataType(&c_strFormat)) {
    161       case UTIL_INT:
    162         strSegment.Format(c_strFormat.c_str(), params[iIndex].ToInt());
    163         break;
    164       case UTIL_DOUBLE:
    165         strSegment.Format(c_strFormat.c_str(), params[iIndex].ToDouble());
    166         break;
    167       case UTIL_STRING:
    168         strSegment.Format(c_strFormat.c_str(),
    169                           params[iIndex].ToCFXWideString().c_str());
    170         break;
    171       default:
    172         strSegment.Format(L"%S", c_strFormat.c_str());
    173         break;
    174     }
    175     c_strResult += strSegment.GetBuffer(strSegment.GetLength() + 1);
    176   }
    177 
    178   c_strResult.erase(c_strResult.begin());
    179   vRet = c_strResult.c_str();
    180   return TRUE;
    181 }
    182 
    183 FX_BOOL util::printd(IJS_Context* cc,
    184                      const std::vector<CJS_Value>& params,
    185                      CJS_Value& vRet,
    186                      CFX_WideString& sError) {
    187   int iSize = params.size();
    188   if (iSize < 2)
    189     return FALSE;
    190 
    191   CJS_Runtime* pRuntime = CJS_Runtime::FromContext(cc);
    192   CJS_Value p1(pRuntime);
    193   p1 = params[0];
    194 
    195   CJS_Value p2 = params[1];
    196   CJS_Date jsDate(pRuntime);
    197   if (!p2.ConvertToDate(jsDate)) {
    198     sError = JSGetStringFromID((CJS_Context*)cc, IDS_STRING_JSPRINT1);
    199     return FALSE;
    200   }
    201 
    202   if (!jsDate.IsValidDate()) {
    203     sError = JSGetStringFromID((CJS_Context*)cc, IDS_STRING_JSPRINT2);
    204     return FALSE;
    205   }
    206 
    207   if (p1.GetType() == CJS_Value::VT_number) {
    208     int nFormat = p1.ToInt();
    209     CFX_WideString swResult;
    210 
    211     switch (nFormat) {
    212       case 0:
    213         swResult.Format(L"D:%04d%02d%02d%02d%02d%02d", jsDate.GetYear(),
    214                         jsDate.GetMonth() + 1, jsDate.GetDay(),
    215                         jsDate.GetHours(), jsDate.GetMinutes(),
    216                         jsDate.GetSeconds());
    217         break;
    218       case 1:
    219         swResult.Format(L"%04d.%02d.%02d %02d:%02d:%02d", jsDate.GetYear(),
    220                         jsDate.GetMonth() + 1, jsDate.GetDay(),
    221                         jsDate.GetHours(), jsDate.GetMinutes(),
    222                         jsDate.GetSeconds());
    223         break;
    224       case 2:
    225         swResult.Format(L"%04d/%02d/%02d %02d:%02d:%02d", jsDate.GetYear(),
    226                         jsDate.GetMonth() + 1, jsDate.GetDay(),
    227                         jsDate.GetHours(), jsDate.GetMinutes(),
    228                         jsDate.GetSeconds());
    229         break;
    230       default:
    231         return FALSE;
    232     }
    233 
    234     vRet = swResult.c_str();
    235     return TRUE;
    236   }
    237   if (p1.GetType() == CJS_Value::VT_string) {
    238     std::basic_string<wchar_t> cFormat = p1.ToCFXWideString().c_str();
    239 
    240     bool bXFAPicture = false;
    241     if (iSize > 2) {
    242       bXFAPicture = params[2].ToBool();
    243     }
    244 
    245     if (bXFAPicture) {
    246       return FALSE;  // currently, it doesn't support XFAPicture.
    247     }
    248 
    249     for (size_t i = 0; i < sizeof(fcTable) / sizeof(stru_TbConvert); ++i) {
    250       int iStart = 0;
    251       int iEnd;
    252       while ((iEnd = cFormat.find(fcTable[i].lpszJSMark, iStart)) != -1) {
    253         cFormat.replace(iEnd, FXSYS_wcslen(fcTable[i].lpszJSMark),
    254                         fcTable[i].lpszCppMark);
    255         iStart = iEnd;
    256       }
    257     }
    258 
    259     int iYear, iMonth, iDay, iHour, iMin, iSec;
    260     iYear = jsDate.GetYear();
    261     iMonth = jsDate.GetMonth();
    262     iDay = jsDate.GetDay();
    263     iHour = jsDate.GetHours();
    264     iMin = jsDate.GetMinutes();
    265     iSec = jsDate.GetSeconds();
    266 
    267     struct tm time = {};
    268     time.tm_year = iYear - 1900;
    269     time.tm_mon = iMonth;
    270     time.tm_mday = iDay;
    271     time.tm_hour = iHour;
    272     time.tm_min = iMin;
    273     time.tm_sec = iSec;
    274 
    275     struct stru_TbConvertAd {
    276       const FX_WCHAR* lpszJSMark;
    277       int iValue;
    278     };
    279 
    280     stru_TbConvertAd cTableAd[] = {
    281         {L"m", iMonth + 1}, {L"d", iDay},
    282         {L"H", iHour},      {L"h", iHour > 12 ? iHour - 12 : iHour},
    283         {L"M", iMin},       {L"s", iSec},
    284     };
    285 
    286     for (size_t i = 0; i < sizeof(cTableAd) / sizeof(stru_TbConvertAd); ++i) {
    287       wchar_t tszValue[10];
    288       CFX_WideString sValue;
    289       sValue.Format(L"%d", cTableAd[i].iValue);
    290       memcpy(tszValue, (wchar_t*)sValue.GetBuffer(sValue.GetLength() + 1),
    291              (sValue.GetLength() + 1) * sizeof(wchar_t));
    292 
    293       int iStart = 0;
    294       int iEnd;
    295       while ((iEnd = cFormat.find(cTableAd[i].lpszJSMark, iStart)) != -1) {
    296         if (iEnd > 0) {
    297           if (cFormat[iEnd - 1] == L'%') {
    298             iStart = iEnd + 1;
    299             continue;
    300           }
    301         }
    302         cFormat.replace(iEnd, FXSYS_wcslen(cTableAd[i].lpszJSMark), tszValue);
    303         iStart = iEnd;
    304       }
    305     }
    306 
    307     CFX_WideString strFormat;
    308     wchar_t buf[64] = {};
    309     strFormat = wcsftime(buf, 64, cFormat.c_str(), &time);
    310     cFormat = buf;
    311     vRet = cFormat.c_str();
    312     return TRUE;
    313   }
    314   return FALSE;
    315 }
    316 
    317 void util::printd(const std::wstring& cFormat2,
    318                   CJS_Date jsDate,
    319                   bool bXFAPicture,
    320                   std::wstring& cPurpose) {
    321   std::wstring cFormat = cFormat2;
    322 
    323   if (bXFAPicture) {
    324     return;  // currently, it doesn't support XFAPicture.
    325   }
    326 
    327   for (size_t i = 0; i < sizeof(fcTable) / sizeof(stru_TbConvert); ++i) {
    328     int iStart = 0;
    329     int iEnd;
    330     while ((iEnd = cFormat.find(fcTable[i].lpszJSMark, iStart)) != -1) {
    331       cFormat.replace(iEnd, FXSYS_wcslen(fcTable[i].lpszJSMark),
    332                       fcTable[i].lpszCppMark);
    333       iStart = iEnd;
    334     }
    335   }
    336 
    337   int iYear, iMonth, iDay, iHour, iMin, iSec;
    338   iYear = jsDate.GetYear();
    339   iMonth = jsDate.GetMonth();
    340   iDay = jsDate.GetDay();
    341   iHour = jsDate.GetHours();
    342   iMin = jsDate.GetMinutes();
    343   iSec = jsDate.GetSeconds();
    344 
    345   struct tm time = {};
    346   time.tm_year = iYear - 1900;
    347   time.tm_mon = iMonth;
    348   time.tm_mday = iDay;
    349   time.tm_hour = iHour;
    350   time.tm_min = iMin;
    351   time.tm_sec = iSec;
    352   //  COleDateTime cppTm(iYear,iMonth+1,iDay,iHour,iMin,iSec);
    353   // CString strFormat = cppTm.Format(cFormat.c_str());
    354 
    355   struct stru_TbConvertAd {
    356     const FX_WCHAR* lpszJSMark;
    357     int iValue;
    358   };
    359 
    360   stru_TbConvertAd cTableAd[] = {
    361       {L"m", iMonth + 1}, {L"d", iDay},
    362       {L"H", iHour},      {L"h", iHour > 12 ? iHour - 12 : iHour},
    363       {L"M", iMin},       {L"s", iSec},
    364   };
    365 
    366   // cFormat = strFormat.GetBuffer(strFormat.GetLength()+1);
    367   for (size_t i = 0; i < sizeof(cTableAd) / sizeof(stru_TbConvertAd); ++i) {
    368     wchar_t tszValue[10];
    369     CFX_WideString sValue;
    370     sValue.Format(L"%d", cTableAd[i].iValue);
    371     memcpy(tszValue, (wchar_t*)sValue.GetBuffer(sValue.GetLength() + 1),
    372            sValue.GetLength() * sizeof(wchar_t));
    373 
    374     int iStart = 0;
    375     int iEnd;
    376     while ((iEnd = cFormat.find(cTableAd[i].lpszJSMark, iStart)) != -1) {
    377       if (iEnd > 0) {
    378         if (cFormat[iEnd - 1] == L'%') {
    379           iStart = iEnd + 1;
    380           continue;
    381         }
    382       }
    383       cFormat.replace(iEnd, FXSYS_wcslen(cTableAd[i].lpszJSMark), tszValue);
    384       iStart = iEnd;
    385     }
    386   }
    387 
    388   CFX_WideString strFormat;
    389   wchar_t buf[64] = {};
    390   strFormat = wcsftime(buf, 64, cFormat.c_str(), &time);
    391   cFormat = buf;
    392   cPurpose = cFormat;
    393 }
    394 
    395 FX_BOOL util::printx(IJS_Context* cc,
    396                      const std::vector<CJS_Value>& params,
    397                      CJS_Value& vRet,
    398                      CFX_WideString& sError) {
    399   int iSize = params.size();
    400   if (iSize < 2)
    401     return FALSE;
    402   CFX_WideString sFormat = params[0].ToCFXWideString();
    403   CFX_WideString sSource = params[1].ToCFXWideString();
    404   std::string cFormat = CFX_ByteString::FromUnicode(sFormat).c_str();
    405   std::string cSource = CFX_ByteString::FromUnicode(sSource).c_str();
    406   std::string cDest;
    407   printx(cFormat, cSource, cDest);
    408   vRet = cDest.c_str();
    409   return TRUE;
    410 }
    411 
    412 void util::printx(const std::string& cFormat,
    413                   const std::string& cSource2,
    414                   std::string& cPurpose) {
    415   std::string cSource(cSource2);
    416   if (!cPurpose.empty())
    417     // cPurpose.clear();
    418     cPurpose.erase();
    419   int itSource = 0;
    420   int iSize = cSource.size();
    421   for (int iIndex = 0; iIndex < (int)cFormat.size() && itSource < iSize;
    422        iIndex++) {
    423     char letter = cFormat[iIndex];
    424     switch (letter) {
    425       case '?':
    426         cPurpose += cSource[itSource];
    427         itSource++;
    428         break;
    429       case 'X': {
    430         while (itSource < iSize) {
    431           if (std::isdigit(cSource[itSource]) ||
    432               (cSource[itSource] >= 'a' && cSource[itSource] <= 'z') ||
    433               (cSource[itSource] >= 'A' && cSource[itSource] <= 'Z')) {
    434             cPurpose += cSource[itSource];
    435             itSource++;
    436             break;
    437           }
    438           itSource++;
    439         }
    440         break;
    441       } break;
    442       case 'A': {
    443         while (itSource < iSize) {
    444           if ((cSource[itSource] >= 'a' && cSource[itSource] <= 'z') ||
    445               (cSource[itSource] >= 'A' && cSource[itSource] <= 'Z')) {
    446             cPurpose += cSource[itSource];
    447             itSource++;
    448             break;
    449           }
    450           itSource++;
    451         }
    452         break;
    453       } break;
    454       case '9': {
    455         while (itSource < iSize) {
    456           if (std::isdigit(cSource[itSource])) {
    457             cPurpose += cSource[itSource];
    458             itSource++;
    459             break;
    460           }
    461           itSource++;
    462         }
    463         break;
    464       }
    465       case '*': {
    466         cPurpose.append(cSource, itSource, iSize - itSource);
    467         itSource = iSize - 1;
    468         break;
    469       }
    470       case '\\':
    471         break;
    472       case '>': {
    473         for (char& c : cSource)
    474           c = toupper(c);
    475         break;
    476       }
    477       case '<': {
    478         for (char& c : cSource)
    479           c = tolower(c);
    480         break;
    481       }
    482       case '=':
    483         break;
    484       default:
    485         cPurpose += letter;
    486         break;
    487     }
    488   }
    489 }
    490 
    491 FX_BOOL util::scand(IJS_Context* cc,
    492                     const std::vector<CJS_Value>& params,
    493                     CJS_Value& vRet,
    494                     CFX_WideString& sError) {
    495   int iSize = params.size();
    496   if (iSize < 2)
    497     return FALSE;
    498 
    499   CFX_WideString sFormat = params[0].ToCFXWideString();
    500   CFX_WideString sDate = params[1].ToCFXWideString();
    501   double dDate = JS_GetDateTime();
    502   if (sDate.GetLength() > 0) {
    503     dDate = CJS_PublicMethods::MakeRegularDate(sDate, sFormat, nullptr);
    504   }
    505 
    506   if (!JS_PortIsNan(dDate)) {
    507     vRet = CJS_Date(CJS_Runtime::FromContext(cc), dDate);
    508   } else {
    509     vRet.SetNull();
    510   }
    511 
    512   return TRUE;
    513 }
    514 
    515 int64_t FX_atoi64(const char* nptr) {
    516   int c;         /* current char */
    517   int64_t total; /* current total */
    518   int sign;      /* if '-', then negative, otherwise positive */
    519 
    520   /* skip whitespace */
    521   while (isspace((int)(unsigned char)*nptr))
    522     ++nptr;
    523 
    524   c = (int)(unsigned char)*nptr++;
    525   sign = c; /* save sign indication */
    526   if (c == '-' || c == '+')
    527     c = (int)(unsigned char)*nptr++; /* skip sign */
    528 
    529   total = 0;
    530 
    531   while (isdigit(c)) {
    532     total = 10 * total + FXSYS_toDecimalDigit(c); /* accumulate digit */
    533     c = (int)(unsigned char)*nptr++; /* get next char */
    534   }
    535 
    536   return sign == '-' ? -total : total;
    537 }
    538 
    539 FX_BOOL util::byteToChar(IJS_Context* cc,
    540                          const std::vector<CJS_Value>& params,
    541                          CJS_Value& vRet,
    542                          CFX_WideString& sError) {
    543   int iSize = params.size();
    544   if (iSize == 0)
    545     return FALSE;
    546   int nByte = params[0].ToInt();
    547   unsigned char cByte = (unsigned char)nByte;
    548   CFX_WideString csValue;
    549   csValue.Format(L"%c", cByte);
    550   vRet = csValue.c_str();
    551   return TRUE;
    552 }
    553