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//========================================================================
//
// pdfdetach.cc
//
// Copyright 2010 Glyph & Cog, LLC
//
//========================================================================
#include <aconf.h>
#include <stdio.h>
#include "gtypes.h"
#include "gmem.h"
#include "parseargs.h"
#include "GlobalParams.h"
#include "PDFDoc.h"
#include "CharTypes.h"
#include "UnicodeMap.h"
#include "Error.h"
#include "config.h"
static GBool doList = gFalse;
static int saveNum = 0;
static GBool saveAll = gFalse;
static char savePath[1024] = "";
static char textEncName[128] = "";
static char ownerPassword[33] = "\001";
static char userPassword[33] = "\001";
static char cfgFileName[256] = "";
static GBool printVersion = gFalse;
static GBool printHelp = gFalse;
static ArgDesc argDesc[] = {
{"-list", argFlag, &doList, 0,
"list all embedded files"},
{"-save", argInt, &saveNum, 0,
"save the specified embedded file"},
{"-saveall", argFlag, &saveAll, 0,
"save all embedded files"},
{"-o", argString, savePath, sizeof(savePath),
"file name for the saved embedded file"},
{"-enc", argString, textEncName, sizeof(textEncName),
"output text encoding name"},
{"-opw", argString, ownerPassword, sizeof(ownerPassword),
"owner password (for encrypted files)"},
{"-upw", argString, userPassword, sizeof(userPassword),
"user password (for encrypted files)"},
{"-cfg", argString, cfgFileName, sizeof(cfgFileName),
"configuration file to use in place of .xpdfrc"},
{"-v", argFlag, &printVersion, 0,
"print copyright and version info"},
{"-h", argFlag, &printHelp, 0,
"print usage information"},
{"-help", argFlag, &printHelp, 0,
"print usage information"},
{"--help", argFlag, &printHelp, 0,
"print usage information"},
{"-?", argFlag, &printHelp, 0,
"print usage information"},
{NULL}
};
int main(int argc, char *argv[]) {
GString *fileName;
UnicodeMap *uMap;
GString *ownerPW, *userPW;
PDFDoc *doc;
Unicode *name;
char uBuf[8];
char path[1024];
char *p;
GBool ok;
int exitCode;
int nFiles, nameLen, n, i, j;
exitCode = 99;
// parse args
ok = parseArgs(argDesc, &argc, argv);
if ((doList ? 1 : 0) +
((saveNum != 0) ? 1 : 0) +
(saveAll ? 1 : 0) != 1) {
ok = gFalse;
}
if (!ok || argc != 2 || printVersion || printHelp) {
fprintf(stderr, "pdfdetach version %s\n", xpdfVersion);
fprintf(stderr, "%s\n", xpdfCopyright);
if (!printVersion) {
printUsage("pdfdetach", "<PDF-file>", argDesc);
}
goto err0;
}
fileName = new GString(argv[1]);
// read config file
globalParams = new GlobalParams(cfgFileName);
if (textEncName[0]) {
globalParams->setTextEncoding(textEncName);
}
// get mapping to output encoding
if (!(uMap = globalParams->getTextEncoding())) {
error(errConfig, -1, "Couldn't get text encoding");
delete fileName;
goto err1;
}
// open PDF file
if (ownerPassword[0] != '\001') {
ownerPW = new GString(ownerPassword);
} else {
ownerPW = NULL;
}
if (userPassword[0] != '\001') {
userPW = new GString(userPassword);
} else {
userPW = NULL;
}
doc = new PDFDoc(fileName, ownerPW, userPW);
if (userPW) {
delete userPW;
}
if (ownerPW) {
delete ownerPW;
}
if (!doc->isOk()) {
exitCode = 1;
goto err2;
}
nFiles = doc->getNumEmbeddedFiles();
// list embedded files
if (doList) {
printf("%d embedded files\n", nFiles);
for (i = 0; i < nFiles; ++i) {
printf("%d: ", i+1);
name = doc->getEmbeddedFileName(i);
nameLen = doc->getEmbeddedFileNameLength(i);
for (j = 0; j < nameLen; ++j) {
n = uMap->mapUnicode(name[j], uBuf, sizeof(uBuf));
fwrite(uBuf, 1, n, stdout);
}
fputc('\n', stdout);
}
// save all embedded files
} else if (saveAll) {
for (i = 0; i < nFiles; ++i) {
if (savePath[0]) {
n = strlen(savePath);
if (n > (int)sizeof(path) - 2) {
n = sizeof(path) - 2;
}
memcpy(path, savePath, n);
path[n] = '/';
p = path + n + 1;
} else {
p = path;
}
name = doc->getEmbeddedFileName(i);
nameLen = doc->getEmbeddedFileNameLength(i);
for (j = 0; j < nameLen; ++j) {
n = uMap->mapUnicode(name[j], uBuf, sizeof(uBuf));
if (p + n >= path + sizeof(path)) {
break;
}
memcpy(p, uBuf, n);
p += n;
}
*p = '\0';
if (!doc->saveEmbeddedFile(i, path)) {
error(errIO, -1, "Error saving embedded file as '{0:s}'", p);
exitCode = 2;
goto err2;
}
}
// save an embedded file
} else {
if (saveNum < 1 || saveNum > nFiles) {
error(errCommandLine, -1, "Invalid file number");
goto err2;
}
if (savePath[0]) {
p = savePath;
} else {
name = doc->getEmbeddedFileName(saveNum - 1);
nameLen = doc->getEmbeddedFileNameLength(saveNum - 1);
p = path;
for (j = 0; j < nameLen; ++j) {
n = uMap->mapUnicode(name[j], uBuf, sizeof(uBuf));
if (p + n >= path + sizeof(path)) {
break;
}
memcpy(p, uBuf, n);
p += n;
}
*p = '\0';
p = path;
}
if (!doc->saveEmbeddedFile(saveNum - 1, p)) {
error(errIO, -1, "Error saving embedded file as '{0:s}'", p);
exitCode = 2;
goto err2;
}
}
exitCode = 0;
// clean up
err2:
uMap->decRefCnt();
delete doc;
err1:
delete globalParams;
err0:
// check for memory leaks
Object::memCheck(stderr);
gMemReport(stderr);
return exitCode;
}
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