diff options
Diffstat (limited to 'kpdf/xpdf/xpdf/PDFDoc.cc')
-rw-r--r-- | kpdf/xpdf/xpdf/PDFDoc.cc | 433 |
1 files changed, 0 insertions, 433 deletions
diff --git a/kpdf/xpdf/xpdf/PDFDoc.cc b/kpdf/xpdf/xpdf/PDFDoc.cc deleted file mode 100644 index dc24d97e..00000000 --- a/kpdf/xpdf/xpdf/PDFDoc.cc +++ /dev/null @@ -1,433 +0,0 @@ -//======================================================================== -// -// PDFDoc.cc -// -// Copyright 1996-2003 Glyph & Cog, LLC -// -//======================================================================== - -#include <aconf.h> - -#ifdef USE_GCC_PRAGMAS -#pragma implementation -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#ifdef WIN32 -# include <windows.h> -#endif -#include "GString.h" -#include "config.h" -#include "GlobalParams.h" -#include "Page.h" -#include "Catalog.h" -#include "Stream.h" -#include "XRef.h" -#include "Link.h" -#include "OutputDev.h" -#include "Error.h" -#include "ErrorCodes.h" -#include "Lexer.h" -#include "Parser.h" -#include "SecurityHandler.h" -#ifndef DISABLE_OUTLINE -#include "Outline.h" -#endif -#include "PDFDoc.h" - -//------------------------------------------------------------------------ - -#define headerSearchSize 1024 // read this many bytes at beginning of - // file to look for '%PDF' - -//------------------------------------------------------------------------ -// PDFDoc -//------------------------------------------------------------------------ - -PDFDoc::PDFDoc(GString *fileNameA, GString *ownerPassword, - GString *userPassword, void *guiDataA) { - Object obj; - GString *fileName1, *fileName2; - - ok = gFalse; - errCode = errNone; - - guiData = guiDataA; - - file = NULL; - str = NULL; - xref = NULL; - catalog = NULL; -#ifndef DISABLE_OUTLINE - outline = NULL; -#endif - - fileName = fileNameA; - fileName1 = fileName; - - - // try to open file - fileName2 = NULL; -#ifdef VMS - if (!(file = fopen(fileName1->getCString(), "rb", "ctx=stm"))) { - error(-1, "Couldn't open file '%s'", fileName1->getCString()); - errCode = errOpenFile; - return; - } -#else - if (!(file = fopen(fileName1->getCString(), "rb"))) { - fileName2 = fileName->copy(); - fileName2->lowerCase(); - if (!(file = fopen(fileName2->getCString(), "rb"))) { - fileName2->upperCase(); - if (!(file = fopen(fileName2->getCString(), "rb"))) { - error(-1, "Couldn't open file '%s'", fileName->getCString()); - delete fileName2; - errCode = errOpenFile; - return; - } - } - delete fileName2; - } -#endif - - // create stream - obj.initNull(); - str = new FileStream(file, 0, gFalse, 0, &obj); - - ok = setup(ownerPassword, userPassword); -} - -#ifdef WIN32 -PDFDoc::PDFDoc(wchar_t *fileNameA, int fileNameLen, GString *ownerPassword, - GString *userPassword, void *guiDataA) { - OSVERSIONINFO version; - wchar_t fileName2[_MAX_PATH + 1]; - Object obj; - int i; - - ok = gFalse; - errCode = errNone; - - guiData = guiDataA; - - file = NULL; - str = NULL; - xref = NULL; - catalog = NULL; -#ifndef DISABLE_OUTLINE - outline = NULL; -#endif - - //~ file name should be stored in Unicode (?) - fileName = new GString(); - for (i = 0; i < fileNameLen; ++i) { - fileName->append((char)fileNameA[i]); - } - - // zero-terminate the file name string - for (i = 0; i < fileNameLen && i < _MAX_PATH; ++i) { - fileName2[i] = fileNameA[i]; - } - fileName2[i] = 0; - - // try to open file - // NB: _wfopen is only available in NT - version.dwOSVersionInfoSize = sizeof(version); - GetVersionEx(&version); - if (version.dwPlatformId == VER_PLATFORM_WIN32_NT) { - file = _wfopen(fileName2, L"rb"); - } else { - file = fopen(fileName->getCString(), "rb"); - } - if (!file) { - error(-1, "Couldn't open file '%s'", fileName->getCString()); - errCode = errOpenFile; - return; - } - - // create stream - obj.initNull(); - str = new FileStream(file, 0, gFalse, 0, &obj); - - ok = setup(ownerPassword, userPassword); -} -#endif - -PDFDoc::PDFDoc(BaseStream *strA, GString *ownerPassword, - GString *userPassword, void *guiDataA) { - ok = gFalse; - errCode = errNone; - guiData = guiDataA; - if (strA->getFileName()) { - fileName = strA->getFileName()->copy(); - } else { - fileName = NULL; - } - file = NULL; - str = strA; - xref = NULL; - catalog = NULL; -#ifndef DISABLE_OUTLINE - outline = NULL; -#endif - ok = setup(ownerPassword, userPassword); -} - -GBool PDFDoc::setup(GString *ownerPassword, GString *userPassword) { - str->reset(); - - char *eof = new char[1025]; - int pos = str->getPos(); - str->setPos(1024, -1); - int i, ch; - for (i = 0; i < 1024; i++) - { - ch = str->getChar(); - if (ch == EOF) - break; - eof[i] = ch; - } - eof[i] = '\0'; - - bool found = false; - for (i = i - 5; i >= 0; i--) { - if (strncmp (&eof[i], "%%EOF", 5) == 0) { - found = true; - break; - } - } - if (!found) - { - error(-1, "Document does not have ending %%EOF"); - errCode = errDamaged; - delete[] eof; - return gFalse; - } - delete[] eof; - - str->setPos(pos); - - // check header - checkHeader(); - - // read xref table - xref = new XRef(str); - if (!xref->isOk()) { - error(-1, "Couldn't read xref table"); - errCode = xref->getErrorCode(); - return gFalse; - } - - // check for encryption - if (!checkEncryption(ownerPassword, userPassword)) { - errCode = errEncrypted; - return gFalse; - } - - // read catalog - catalog = new Catalog(xref); - if (!catalog->isOk()) { - error(-1, "Couldn't read page catalog"); - errCode = errBadCatalog; - return gFalse; - } - -#ifndef DISABLE_OUTLINE - // read outline - outline = new Outline(catalog->getOutline(), xref); -#endif - - // done - return gTrue; -} - -PDFDoc::~PDFDoc() { -#ifndef DISABLE_OUTLINE - if (outline) { - delete outline; - } -#endif - if (catalog) { - delete catalog; - } - if (xref) { - delete xref; - } - if (str) { - delete str; - } - if (file) { - fclose(file); - } - if (fileName) { - delete fileName; - } -} - -// Check for a PDF header on this stream. Skip past some garbage -// if necessary. -void PDFDoc::checkHeader() { - char hdrBuf[headerSearchSize+1]; - char *p; - int i; - - pdfVersion = 0; - for (i = 0; i < headerSearchSize; ++i) { - hdrBuf[i] = str->getChar(); - } - hdrBuf[headerSearchSize] = '\0'; - for (i = 0; i < headerSearchSize - 5; ++i) { - if (!strncmp(&hdrBuf[i], "%PDF-", 5)) { - break; - } - } - if (i >= headerSearchSize - 5) { - error(-1, "May not be a PDF file (continuing anyway)"); - return; - } - str->moveStart(i); - if (!(p = strtok(&hdrBuf[i+5], " \t\n\r"))) { - error(-1, "May not be a PDF file (continuing anyway)"); - return; - } - pdfVersion = atof(p); - if (!(hdrBuf[i+5] >= '0' && hdrBuf[i+5] <= '9') || - pdfVersion > supportedPDFVersionNum + 0.0001) { - error(-1, "PDF version %s -- xpdf supports version %s" - " (continuing anyway)", p, supportedPDFVersionStr); - } -} - -GBool PDFDoc::checkEncryption(GString *ownerPassword, GString *userPassword) { - Object encrypt; - GBool encrypted; - SecurityHandler *secHdlr; - GBool ret; - - xref->getTrailerDict()->dictLookup("Encrypt", &encrypt); - if ((encrypted = encrypt.isDict())) { - if ((secHdlr = SecurityHandler::make(this, &encrypt))) { - if (secHdlr->checkEncryption(ownerPassword, userPassword)) { - // authorization succeeded - xref->setEncryption(secHdlr->getPermissionFlags(), - secHdlr->getOwnerPasswordOk(), - secHdlr->getFileKey(), - secHdlr->getFileKeyLength(), - secHdlr->getEncVersion(), - secHdlr->getEncAlgorithm()); - ret = gTrue; - } else { - // authorization failed - ret = gFalse; - } - delete secHdlr; - } else { - // couldn't find the matching security handler - ret = gFalse; - } - } else { - // document is not encrypted - ret = gTrue; - } - encrypt.free(); - return ret; -} - -void PDFDoc::displayPage(OutputDev *out, int page, - double hDPI, double vDPI, int rotate, - GBool useMediaBox, GBool crop, GBool printing, - GBool (*abortCheckCbk)(void *data), - void *abortCheckCbkData) { - if (globalParams->getPrintCommands()) { - printf("***** page %d *****\n", page); - } - catalog->getPage(page)->display(out, hDPI, vDPI, - rotate, useMediaBox, crop, printing, catalog, - abortCheckCbk, abortCheckCbkData); -} - -void PDFDoc::displayPages(OutputDev *out, int firstPage, int lastPage, - double hDPI, double vDPI, int rotate, - GBool useMediaBox, GBool crop, GBool printing, - GBool (*abortCheckCbk)(void *data), - void *abortCheckCbkData) { - int page; - - for (page = firstPage; page <= lastPage; ++page) { - displayPage(out, page, hDPI, vDPI, rotate, useMediaBox, crop, printing, - abortCheckCbk, abortCheckCbkData); - } -} - -void PDFDoc::displayPageSlice(OutputDev *out, int page, - double hDPI, double vDPI, int rotate, - GBool useMediaBox, GBool crop, GBool printing, - int sliceX, int sliceY, int sliceW, int sliceH, - GBool (*abortCheckCbk)(void *data), - void *abortCheckCbkData) { - catalog->getPage(page)->displaySlice(out, hDPI, vDPI, - rotate, useMediaBox, crop, - sliceX, sliceY, sliceW, sliceH, - printing, catalog, - abortCheckCbk, abortCheckCbkData); -} - -Links *PDFDoc::getLinks(int page) { - return catalog->getPage(page)->getLinks(catalog); -} - -void PDFDoc::processLinks(OutputDev *out, int page) { - catalog->getPage(page)->processLinks(out, catalog); -} - -GBool PDFDoc::isLinearized() { - Parser *parser; - Object obj1, obj2, obj3, obj4, obj5; - GBool lin; - - lin = gFalse; - obj1.initNull(); - parser = new Parser(xref, - new Lexer(xref, - str->makeSubStream(str->getStart(), gFalse, 0, &obj1)), - gTrue); - parser->getObj(&obj1); - parser->getObj(&obj2); - parser->getObj(&obj3); - parser->getObj(&obj4); - if (obj1.isInt() && obj2.isInt() && obj3.isCmd("obj") && - obj4.isDict()) { - obj4.dictLookup("Linearized", &obj5); - if (obj5.isNum() && obj5.getNum() > 0) { - lin = gTrue; - } - obj5.free(); - } - obj4.free(); - obj3.free(); - obj2.free(); - obj1.free(); - delete parser; - return lin; -} - -GBool PDFDoc::saveAs(GString *name) { - FILE *f; - int c; - - if (!(f = fopen(name->getCString(), "wb"))) { - error(-1, "Couldn't open file '%s'", name->getCString()); - return gFalse; - } - str->reset(); - while ((c = str->getChar()) != EOF) { - fputc(c, f); - } - str->close(); - fclose(f); - return gTrue; -} |