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e2dedde4bd
Breaking API change: length parameter has disappeared from the StreamDataProvider version of QPDFObjectHandle::replaceStreamData since it is no longer necessary to compute it in advance. This breaking change is justified by the fact that removing the length parameter provides the caller an opportunity to simplify the calling code.
897 lines
28 KiB
C++
897 lines
28 KiB
C++
// This program tests miscellaneous functionality in the qpdf library
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// that we don't want to pollute the qpdf program with.
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#include <qpdf/QPDF.hh>
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#include <qpdf/QUtil.hh>
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#include <qpdf/QTC.hh>
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#include <qpdf/Pl_StdioFile.hh>
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#include <qpdf/Pl_Buffer.hh>
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#include <qpdf/Pl_Flate.hh>
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#include <qpdf/QPDFWriter.hh>
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#include <iostream>
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#include <sstream>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <map>
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static char const* whoami = 0;
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void usage()
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{
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std::cerr << "Usage: " << whoami << " n filename" << std::endl;
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exit(2);
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}
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class Provider: public QPDFObjectHandle::StreamDataProvider
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{
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public:
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Provider(PointerHolder<Buffer> b) :
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b(b),
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bad_length(false)
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{
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}
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virtual ~Provider()
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{
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}
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virtual void provideStreamData(int objid, int generation,
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Pipeline* p)
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{
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p->write(b->getBuffer(), b->getSize());
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if (this->bad_length)
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{
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unsigned char ch = ' ';
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p->write(&ch, 1);
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}
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p->finish();
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}
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void badLength(bool v)
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{
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this->bad_length = v;
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}
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private:
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PointerHolder<Buffer> b;
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bool bad_length;
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};
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static void checkPageContents(QPDFObjectHandle page,
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std::string const& wanted_string)
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{
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PointerHolder<Buffer> b1 =
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page.getKey("/Contents").getStreamData();
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std::string contents = std::string((char *)(b1->getBuffer()));
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if (contents.find(wanted_string) == std::string::npos)
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{
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std::cout << "didn't find " << wanted_string << " in "
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<< contents << std::endl;
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}
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}
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static QPDFObjectHandle createPageContents(QPDF& pdf, std::string const& text)
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{
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std::string contents = "BT /F1 15 Tf 72 720 Td (" + text + ") Tj ET\n";
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return QPDFObjectHandle::newStream(&pdf, contents);
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}
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void runtest(int n, char const* filename)
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{
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// Most tests here are crafted to work on specific files. Look at
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// the test suite to see how the test is invoked to find the file
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// that the test is supposed to operate on.
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QPDF pdf;
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PointerHolder<char> file_buf;
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FILE* filep = 0;
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if (n == 0)
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{
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pdf.setAttemptRecovery(false);
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}
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if (n % 2 == 0)
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{
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if (n % 4 == 0)
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{
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QTC::TC("qpdf", "exercise processFile(name)");
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pdf.processFile(filename);
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}
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else
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{
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QTC::TC("qpdf", "exercise processFile(FILE*)");
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filep = QUtil::fopen_wrapper(std::string("open ") + filename,
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fopen(filename, "rb"));
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pdf.processFile(filename, filep, false);
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}
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}
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else
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{
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QTC::TC("qpdf", "exercise processMemoryFile");
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FILE* f = QUtil::fopen_wrapper(std::string("open ") + filename,
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fopen(filename, "rb"));
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fseek(f, 0, SEEK_END);
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size_t size = (size_t) QUtil::tell(f);
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fseek(f, 0, SEEK_SET);
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file_buf = PointerHolder<char>(true, new char[size]);
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char* buf_p = file_buf.getPointer();
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size_t bytes_read = 0;
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size_t len = 0;
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while ((len = fread(buf_p + bytes_read, 1, size - bytes_read, f)) > 0)
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{
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bytes_read += len;
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}
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if (bytes_read != size)
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{
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if (ferror(f))
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{
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throw std::runtime_error(
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std::string("failure reading file ") + filename +
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" into memory: read " +
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QUtil::int_to_string(bytes_read) + "; wanted " +
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QUtil::int_to_string(size));
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}
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else
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{
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throw std::logic_error(
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std::string("premature eof reading file ") + filename +
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" into memory: read " +
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QUtil::int_to_string(bytes_read) + "; wanted " +
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QUtil::int_to_string(size));
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}
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}
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fclose(f);
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pdf.processMemoryFile(filename, buf_p, size);
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}
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if ((n == 0) || (n == 1))
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{
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QPDFObjectHandle trailer = pdf.getTrailer();
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QPDFObjectHandle qtest = trailer.getKey("/QTest");
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if (! trailer.hasKey("/QTest"))
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{
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// This will always happen when /QTest is null because
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// hasKey returns false for null keys regardless of
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// whether the key exists or not. That way there's never
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// any difference between a key that is present and null
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// and a key that is absent.
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QTC::TC("qpdf", "main QTest implicit");
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std::cout << "/QTest is implicit" << std::endl;
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}
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QTC::TC("qpdf", "main QTest indirect",
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qtest.isIndirect() ? 1 : 0);
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std::cout << "/QTest is "
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<< (qtest.isIndirect() ? "in" : "")
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<< "direct" << std::endl;
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if (qtest.isNull())
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{
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QTC::TC("qpdf", "main QTest null");
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std::cout << "/QTest is null" << std::endl;
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}
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else if (qtest.isBool())
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{
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QTC::TC("qpdf", "main QTest bool",
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qtest.getBoolValue() ? 1 : 0);
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std::cout << "/QTest is Boolean with value "
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<< (qtest.getBoolValue() ? "true" : "false")
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<< std::endl;
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}
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else if (qtest.isInteger())
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{
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QTC::TC("qpdf", "main QTest int");
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std::cout << "/QTest is an integer with value "
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<< qtest.getIntValue() << std::endl;
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}
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else if (qtest.isReal())
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{
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QTC::TC("qpdf", "main QTest real");
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std::cout << "/QTest is a real number with value "
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<< qtest.getRealValue() << std::endl;
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}
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else if (qtest.isName())
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{
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QTC::TC("qpdf", "main QTest name");
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std::cout << "/QTest is a name with value "
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<< qtest.getName() << std::endl;
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}
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else if (qtest.isString())
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{
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QTC::TC("qpdf", "main QTest string");
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std::cout << "/QTest is a string with value "
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<< qtest.getStringValue() << std::endl;
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}
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else if (qtest.isArray())
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{
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QTC::TC("qpdf", "main QTest array");
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int n = qtest.getArrayNItems();
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std::cout << "/QTest is an array with "
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<< n << " items" << std::endl;
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for (int i = 0; i < n; ++i)
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{
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QTC::TC("qpdf", "main QTest array indirect",
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qtest.getArrayItem(i).isIndirect() ? 1 : 0);
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std::cout << " item " << i << " is "
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<< (qtest.getArrayItem(i).isIndirect() ? "in" : "")
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<< "direct" << std::endl;
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}
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}
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else if (qtest.isDictionary())
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{
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QTC::TC("qpdf", "main QTest dictionary");
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std::cout << "/QTest is a dictionary" << std::endl;
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std::set<std::string> keys = qtest.getKeys();
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for (std::set<std::string>::iterator iter = keys.begin();
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iter != keys.end(); ++iter)
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{
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QTC::TC("qpdf", "main QTest dictionary indirect",
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(qtest.getKey(*iter).isIndirect() ? 1 : 0));
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std::cout << " " << *iter << " is "
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<< (qtest.getKey(*iter).isIndirect() ? "in" : "")
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<< "direct" << std::endl;
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}
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}
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else if (qtest.isStream())
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{
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QTC::TC("qpdf", "main QTest stream");
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std::cout << "/QTest is a stream. Dictionary: "
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<< qtest.getDict().unparse() << std::endl;
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std::cout << "Raw stream data:" << std::endl;
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std::cout.flush();
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QUtil::binary_stdout();
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PointerHolder<Pl_StdioFile> out = new Pl_StdioFile("raw", stdout);
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qtest.pipeStreamData(out.getPointer(), false, false, false);
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std::cout << std::endl << "Uncompressed stream data:" << std::endl;
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if (qtest.pipeStreamData(0, true, false, false))
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{
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std::cout.flush();
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QUtil::binary_stdout();
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out = new Pl_StdioFile("filtered", stdout);
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qtest.pipeStreamData(out.getPointer(), true, false, false);
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std::cout << std::endl << "End of stream data" << std::endl;
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}
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else
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{
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std::cout << "Stream data is not filterable." << std::endl;
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}
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}
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else
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{
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// Should not happen!
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std::cout << "/QTest is an unknown object" << std::endl;
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}
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std::cout << "unparse: " << qtest.unparse() << std::endl
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<< "unparseResolved: " << qtest.unparseResolved()
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<< std::endl;
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}
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else if (n == 2)
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{
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// Encrypted file. This test case is designed for a specific
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// PDF file.
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QPDFObjectHandle trailer = pdf.getTrailer();
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std::cout << trailer.getKey("/Info").
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getKey("/CreationDate").getStringValue() << std::endl;
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std::cout << trailer.getKey("/Info").
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getKey("/Producer").getStringValue() << std::endl;
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QPDFObjectHandle encrypt = trailer.getKey("/Encrypt");
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std::cout << encrypt.getKey("/O").unparse() << std::endl;
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std::cout << encrypt.getKey("/U").unparse() << std::endl;
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QPDFObjectHandle root = pdf.getRoot();
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QPDFObjectHandle pages = root.getKey("/Pages");
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QPDFObjectHandle kids = pages.getKey("/Kids");
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QPDFObjectHandle page = kids.getArrayItem(1); // second page
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QPDFObjectHandle contents = page.getKey("/Contents");
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QUtil::binary_stdout();
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PointerHolder<Pl_StdioFile> out = new Pl_StdioFile("filtered", stdout);
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contents.pipeStreamData(out.getPointer(), true, false, false);
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}
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else if (n == 3)
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{
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QPDFObjectHandle streams = pdf.getTrailer().getKey("/QStreams");
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for (int i = 0; i < streams.getArrayNItems(); ++i)
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{
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QPDFObjectHandle stream = streams.getArrayItem(i);
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std::cout << "-- stream " << i << " --" << std::endl;
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std::cout.flush();
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QUtil::binary_stdout();
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PointerHolder<Pl_StdioFile> out =
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new Pl_StdioFile("tokenized stream", stdout);
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stream.pipeStreamData(out.getPointer(), true, true, false);
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}
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}
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else if (n == 4)
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{
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// Mutability testing: Make /QTest direct recursively, then
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// copy to /Info. Also make some other mutations so we can
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// tell the difference and ensure that the original /QTest
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// isn't effected.
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QPDFObjectHandle trailer = pdf.getTrailer();
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QPDFObjectHandle qtest = trailer.getKey("/QTest");
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qtest.makeDirect();
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qtest.removeKey("/Subject");
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qtest.replaceKey("/Author",
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QPDFObjectHandle::newString("Mr. Potato Head"));
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// qtest.A and qtest.B.A were originally the same object.
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// They no longer are after makeDirect(). Mutate one of them
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// and ensure the other is not changed. These test cases are
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// crafted around a specific set of input files.
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QPDFObjectHandle A = qtest.getKey("/A");
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if (A.getArrayItem(0).getIntValue() == 1)
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{
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// Test mutators
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A.setArrayItem(1, QPDFObjectHandle::newInteger(5)); // 1 5 3
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A.insertItem(2, QPDFObjectHandle::newInteger(10)); // 1 5 10 3
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A.appendItem(QPDFObjectHandle::newInteger(12)); // 1 5 10 3 12
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A.eraseItem(3); // 1 5 10 12
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A.insertItem(4, QPDFObjectHandle::newInteger(6)); // 1 5 10 12 6
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A.insertItem(0, QPDFObjectHandle::newInteger(9)); // 9 1 5 10 12 6
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}
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else
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{
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std::vector<QPDFObjectHandle> items;
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items.push_back(QPDFObjectHandle::newInteger(14));
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items.push_back(QPDFObjectHandle::newInteger(15));
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items.push_back(QPDFObjectHandle::newInteger(9));
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A.setArrayFromVector(items);
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}
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trailer.replaceKey("/Info", pdf.makeIndirectObject(qtest));
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QPDFWriter w(pdf, 0);
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w.setQDFMode(true);
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w.setStaticID(true);
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w.write();
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// Prevent "done" message from getting appended
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exit(0);
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}
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else if (n == 5)
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{
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std::vector<QPDFObjectHandle> pages = pdf.getAllPages();
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int pageno = 0;
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for (std::vector<QPDFObjectHandle>::iterator iter = pages.begin();
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iter != pages.end(); ++iter)
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{
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QPDFObjectHandle& page = *iter;
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++pageno;
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std::cout << "page " << pageno << ":" << std::endl;
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std::cout << " images:" << std::endl;
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std::map<std::string, QPDFObjectHandle> images =
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page.getPageImages();
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for (std::map<std::string, QPDFObjectHandle>::iterator iter =
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images.begin(); iter != images.end(); ++iter)
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{
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std::string const& name = (*iter).first;
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QPDFObjectHandle image = (*iter).second;
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QPDFObjectHandle dict = image.getDict();
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int width = dict.getKey("/Width").getIntValue();
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int height = dict.getKey("/Height").getIntValue();
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std::cout << " " << name
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<< ": " << width << " x " << height
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<< std::endl;
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}
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std::cout << " content:" << std::endl;
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std::vector<QPDFObjectHandle> content = page.getPageContents();
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for (std::vector<QPDFObjectHandle>::iterator iter = content.begin();
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iter != content.end(); ++iter)
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{
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std::cout << " " << (*iter).unparse() << std::endl;
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}
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std::cout << "end page " << pageno << std::endl;
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}
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QPDFObjectHandle root = pdf.getRoot();
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QPDFObjectHandle qstrings = root.getKey("/QStrings");
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if (qstrings.isArray())
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{
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std::cout << "QStrings:" << std::endl;
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int n = qstrings.getArrayNItems();
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for (int i = 0; i < n; ++i)
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{
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std::cout << qstrings.getArrayItem(i).getUTF8Value()
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<< std::endl;
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}
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}
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QPDFObjectHandle qnumbers = root.getKey("/QNumbers");
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if (qnumbers.isArray())
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{
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std::cout << "QNumbers:" << std::endl;
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int n = qnumbers.getArrayNItems();
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for (int i = 0; i < n; ++i)
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{
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std::cout << QUtil::double_to_string(
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qnumbers.getArrayItem(i).getNumericValue(), 3)
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<< std::endl;
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}
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}
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}
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else if (n == 6)
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{
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QPDFObjectHandle root = pdf.getRoot();
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QPDFObjectHandle metadata = root.getKey("/Metadata");
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if (! metadata.isStream())
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{
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throw std::logic_error("test 6 run on file with no metadata");
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}
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Pl_Buffer bufpl("buffer");
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metadata.pipeStreamData(&bufpl, false, false, false);
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Buffer* buf = bufpl.getBuffer();
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unsigned char const* data = buf->getBuffer();
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bool cleartext = false;
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if ((buf->getSize() > 9) &&
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(strncmp((char const*)data, "<?xpacket", 9) == 0))
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{
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cleartext = true;
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}
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delete buf;
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std::cout << "encrypted="
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<< (pdf.isEncrypted() ? 1 : 0)
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<< "; cleartext="
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<< (cleartext ? 1 : 0)
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<< std::endl;
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}
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else if (n == 7)
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{
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QPDFObjectHandle root = pdf.getRoot();
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QPDFObjectHandle qstream = root.getKey("/QStream");
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if (! qstream.isStream())
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{
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throw std::logic_error("test 7 run on file with no QStream");
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}
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PointerHolder<Buffer> b = new Buffer(20);
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unsigned char* bp = b->getBuffer();
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memcpy(bp, (char*)"new data for stream\n", 20); // no null!
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qstream.replaceStreamData(
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b, QPDFObjectHandle::newNull(), QPDFObjectHandle::newNull());
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QPDFWriter w(pdf, "a.pdf");
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w.setStaticID(true);
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w.setStreamDataMode(qpdf_s_preserve);
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w.write();
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}
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else if (n == 8)
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{
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QPDFObjectHandle root = pdf.getRoot();
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QPDFObjectHandle qstream = root.getKey("/QStream");
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if (! qstream.isStream())
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{
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throw std::logic_error("test 7 run on file with no QStream");
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}
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Pl_Buffer p1("buffer");
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Pl_Flate p2("compress", &p1, Pl_Flate::a_deflate);
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p2.write((unsigned char*)"new data for stream\n", 20); // no null!
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p2.finish();
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PointerHolder<Buffer> b = p1.getBuffer();
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// This is a bogus way to use StreamDataProvider, but it does
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// adequately test its functionality.
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Provider* provider = new Provider(b);
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PointerHolder<QPDFObjectHandle::StreamDataProvider> p = provider;
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qstream.replaceStreamData(
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p, QPDFObjectHandle::newName("/FlateDecode"),
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QPDFObjectHandle::newNull());
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provider->badLength(false);
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QPDFWriter w(pdf, "a.pdf");
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w.setStaticID(true);
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// Linearize to force the provider to be called multiple times.
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w.setLinearization(true);
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w.setStreamDataMode(qpdf_s_preserve);
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w.write();
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// Every time a provider pipes stream data, it has to provide
|
|
// the same amount of data.
|
|
provider->badLength(true);
|
|
try
|
|
{
|
|
qstream.getStreamData();
|
|
std::cout << "oops -- getStreamData didn't throw" << std::endl;
|
|
}
|
|
catch (std::logic_error const& e)
|
|
{
|
|
std::cout << "exception: " << e.what() << std::endl;
|
|
}
|
|
}
|
|
else if (n == 9)
|
|
{
|
|
QPDFObjectHandle root = pdf.getRoot();
|
|
PointerHolder<Buffer> b1 = new Buffer(20);
|
|
unsigned char* bp = b1->getBuffer();
|
|
memcpy(bp, (char*)"data for new stream\n", 20); // no null!
|
|
QPDFObjectHandle qstream = QPDFObjectHandle::newStream(&pdf, b1);
|
|
QPDFObjectHandle rstream = QPDFObjectHandle::newStream(&pdf);
|
|
try
|
|
{
|
|
rstream.getStreamData();
|
|
std::cout << "oops -- getStreamData didn't throw" << std::endl;
|
|
}
|
|
catch (std::logic_error const& e)
|
|
{
|
|
std::cout << "exception: " << e.what() << std::endl;
|
|
}
|
|
PointerHolder<Buffer> b2 = new Buffer(22);
|
|
bp = b2->getBuffer();
|
|
memcpy(bp, (char*)"data for other stream\n", 22); // no null!
|
|
rstream.replaceStreamData(
|
|
b2, QPDFObjectHandle::newNull(), QPDFObjectHandle::newNull());
|
|
root.replaceKey("/QStream", qstream);
|
|
root.replaceKey("/RStream", rstream);
|
|
QPDFWriter w(pdf, "a.pdf");
|
|
w.setStaticID(true);
|
|
w.setStreamDataMode(qpdf_s_preserve);
|
|
w.write();
|
|
}
|
|
else if (n == 10)
|
|
{
|
|
PointerHolder<Buffer> b1 = new Buffer(37);
|
|
unsigned char* bp = b1->getBuffer();
|
|
memcpy(bp, (char*)"BT /F1 12 Tf 72 620 Td (Baked) Tj ET\n", 37);
|
|
PointerHolder<Buffer> b2 = new Buffer(38);
|
|
bp = b2->getBuffer();
|
|
memcpy(bp, (char*)"BT /F1 18 Tf 72 520 Td (Mashed) Tj ET\n", 38);
|
|
|
|
std::vector<QPDFObjectHandle> pages = pdf.getAllPages();
|
|
pages[0].addPageContents(QPDFObjectHandle::newStream(&pdf, b1), true);
|
|
pages[0].addPageContents(QPDFObjectHandle::newStream(&pdf, b2), false);
|
|
|
|
QPDFWriter w(pdf, "a.pdf");
|
|
w.setStaticID(true);
|
|
w.setStreamDataMode(qpdf_s_preserve);
|
|
w.write();
|
|
}
|
|
else if (n == 11)
|
|
{
|
|
QPDFObjectHandle root = pdf.getRoot();
|
|
QPDFObjectHandle qstream = root.getKey("/QStream");
|
|
PointerHolder<Buffer> b1 = qstream.getStreamData();
|
|
PointerHolder<Buffer> b2 = qstream.getRawStreamData();
|
|
if ((b1->getSize() == 7) &&
|
|
(memcmp(b1->getBuffer(), "potato\n", 7) == 0))
|
|
{
|
|
std::cout << "filtered stream data okay" << std::endl;
|
|
}
|
|
if ((b2->getSize() == 15) &&
|
|
(memcmp(b2->getBuffer(), "706F7461746F0A\n", 15) == 0))
|
|
{
|
|
std::cout << "raw stream data okay" << std::endl;
|
|
}
|
|
}
|
|
else if (n == 12)
|
|
{
|
|
pdf.setOutputStreams(0, 0);
|
|
pdf.showLinearizationData();
|
|
}
|
|
else if (n == 13)
|
|
{
|
|
std::ostringstream out;
|
|
std::ostringstream err;
|
|
pdf.setOutputStreams(&out, &err);
|
|
pdf.showLinearizationData();
|
|
std::cout << "---output---" << std::endl
|
|
<< out.str()
|
|
<< "---error---" << std::endl
|
|
<< err.str();
|
|
}
|
|
else if (n == 14)
|
|
{
|
|
// Exercise swap and replace. This test case is designed for
|
|
// a specific file.
|
|
std::vector<QPDFObjectHandle> pages = pdf.getAllPages();
|
|
if (pages.size() != 4)
|
|
{
|
|
throw std::logic_error("test " + QUtil::int_to_string(n) +
|
|
" not called 4-page file");
|
|
}
|
|
// Swap pages 2 and 3
|
|
pdf.swapObjects(pages[1].getObjectID(), pages[1].getGeneration(),
|
|
pages[2].getObjectID(), pages[2].getGeneration());
|
|
// Replace object and swap objects
|
|
QPDFObjectHandle trailer = pdf.getTrailer();
|
|
QPDFObjectHandle qdict = trailer.getKey("/QDict");
|
|
QPDFObjectHandle qarray = trailer.getKey("/QArray");
|
|
// Force qdict but not qarray to resolve
|
|
qdict.isDictionary();
|
|
QPDFObjectHandle new_dict = QPDFObjectHandle::newDictionary();
|
|
new_dict.replaceKey("/NewDict", QPDFObjectHandle::newInteger(2));
|
|
try
|
|
{
|
|
// Do it wrong first...
|
|
pdf.replaceObject(qdict.getObjectID(), qdict.getGeneration(),
|
|
qdict);
|
|
}
|
|
catch (std::logic_error)
|
|
{
|
|
std::cout << "caught logic error as expected" << std::endl;
|
|
}
|
|
pdf.replaceObject(qdict.getObjectID(), qdict.getGeneration(),
|
|
new_dict);
|
|
// Now qdict still points to the old dictionary
|
|
std::cout << "old dict: " << qdict.getKey("/Dict").getIntValue()
|
|
<< std::endl;
|
|
// Swap dict and array
|
|
pdf.swapObjects(qdict.getObjectID(), qdict.getGeneration(),
|
|
qarray.getObjectID(), qarray.getGeneration());
|
|
// Now qarray will resolve to new object but qdict is still
|
|
// the old object
|
|
std::cout << "old dict: " << qdict.getKey("/Dict").getIntValue()
|
|
<< std::endl;
|
|
std::cout << "new dict: " << qarray.getKey("/NewDict").getIntValue()
|
|
<< std::endl;
|
|
// Reread qdict, now pointing to an array
|
|
qdict = pdf.getObjectByID(qdict.getObjectID(), qdict.getGeneration());
|
|
std::cout << "swapped array: " << qdict.getArrayItem(0).getName()
|
|
<< std::endl;
|
|
|
|
// Exercise getAsMap and getAsArray
|
|
std::vector<QPDFObjectHandle> array_elements =
|
|
qdict.getArrayAsVector();
|
|
std::map<std::string, QPDFObjectHandle> dict_items =
|
|
qarray.getDictAsMap();
|
|
if ((array_elements.size() == 1) &&
|
|
(array_elements[0].getName() == "/Array") &&
|
|
(dict_items.size() == 1) &&
|
|
(dict_items["/NewDict"].getIntValue() == 2))
|
|
{
|
|
std::cout << "array and dictionary contents are correct"
|
|
<< std::endl;
|
|
}
|
|
|
|
// Exercise writing to memory buffer
|
|
QPDFWriter w(pdf);
|
|
w.setOutputMemory();
|
|
w.setStaticID(true);
|
|
w.setStreamDataMode(qpdf_s_preserve);
|
|
w.write();
|
|
Buffer* b = w.getBuffer();
|
|
FILE* f = QUtil::fopen_wrapper(std::string("open a.pdf"),
|
|
fopen("a.pdf", "wb"));
|
|
fwrite(b->getBuffer(), b->getSize(), 1, f);
|
|
fclose(f);
|
|
delete b;
|
|
}
|
|
else if (n == 15)
|
|
{
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
// Reference to original page numbers for this test case are
|
|
// numbered from 0.
|
|
|
|
// Remove pages from various places, checking to make sure
|
|
// that our pages reference is getting updated.
|
|
assert(pages.size() == 10);
|
|
pdf.removePage(pages.back()); // original page 9
|
|
assert(pages.size() == 9);
|
|
pdf.removePage(*pages.begin()); // original page 0
|
|
assert(pages.size() == 8);
|
|
checkPageContents(pages[4], "Original page 5");
|
|
pdf.removePage(pages[4]); // original page 5
|
|
assert(pages.size() == 7);
|
|
checkPageContents(pages[4], "Original page 6");
|
|
checkPageContents(pages[0], "Original page 1");
|
|
checkPageContents(pages[6], "Original page 8");
|
|
|
|
// Insert pages
|
|
|
|
// Create some content streams.
|
|
std::vector<QPDFObjectHandle> contents;
|
|
contents.push_back(createPageContents(pdf, "New page 1"));
|
|
contents.push_back(createPageContents(pdf, "New page 0"));
|
|
contents.push_back(createPageContents(pdf, "New page 5"));
|
|
contents.push_back(createPageContents(pdf, "New page 6"));
|
|
contents.push_back(createPageContents(pdf, "New page 11"));
|
|
contents.push_back(createPageContents(pdf, "New page 12"));
|
|
|
|
// Create some page objects. Start with an existing
|
|
// dictionary and modify it. Using the results of
|
|
// getDictAsMap to create a new dictionary effectively creates
|
|
// a shallow copy.
|
|
QPDFObjectHandle page_tempate = pages[0];
|
|
std::vector<QPDFObjectHandle> new_pages;
|
|
for (std::vector<QPDFObjectHandle>::iterator iter = contents.begin();
|
|
iter != contents.end(); ++iter)
|
|
{
|
|
// We will retain indirect object references to other
|
|
// indirect objects other than page content.
|
|
QPDFObjectHandle page = page_tempate.shallowCopy();
|
|
page.replaceKey("/Contents", *iter);
|
|
if (iter == contents.begin())
|
|
{
|
|
// leave direct
|
|
new_pages.push_back(page);
|
|
}
|
|
else
|
|
{
|
|
new_pages.push_back(pdf.makeIndirectObject(page));
|
|
}
|
|
}
|
|
|
|
// Now insert the pages
|
|
pdf.addPage(new_pages[0], true);
|
|
checkPageContents(pages[0], "New page 1");
|
|
pdf.addPageAt(new_pages[1], true, pages[0]);
|
|
assert(pages[0].getObjectID() == new_pages[1].getObjectID());
|
|
pdf.addPageAt(new_pages[2], true, pages[5]);
|
|
assert(pages[5].getObjectID() == new_pages[2].getObjectID());
|
|
pdf.addPageAt(new_pages[3], false, pages[5]);
|
|
assert(pages[6].getObjectID() == new_pages[3].getObjectID());
|
|
assert(pages.size() == 11);
|
|
pdf.addPage(new_pages[4], false);
|
|
assert(pages[11].getObjectID() == new_pages[4].getObjectID());
|
|
pdf.addPageAt(new_pages[5], false, pages.back());
|
|
assert(pages.size() == 13);
|
|
checkPageContents(pages[0], "New page 0");
|
|
checkPageContents(pages[1], "New page 1");
|
|
checkPageContents(pages[5], "New page 5");
|
|
checkPageContents(pages[6], "New page 6");
|
|
checkPageContents(pages[11], "New page 11");
|
|
checkPageContents(pages[12], "New page 12");
|
|
|
|
// Exercise writing to FILE*
|
|
FILE* out = QUtil::fopen_wrapper(std::string("open a.pdf"),
|
|
fopen("a.pdf", "wb"));
|
|
QPDFWriter w(pdf, "FILE* a.pdf", out, true);
|
|
w.setStaticID(true);
|
|
w.setStreamDataMode(qpdf_s_preserve);
|
|
w.write();
|
|
}
|
|
else if (n == 16)
|
|
{
|
|
// Insert a page manually and then update the cache.
|
|
std::vector<QPDFObjectHandle> const& all_pages = pdf.getAllPages();
|
|
|
|
QPDFObjectHandle contents = createPageContents(pdf, "New page 10");
|
|
QPDFObjectHandle page =
|
|
pdf.makeIndirectObject(
|
|
QPDFObjectHandle(all_pages[0]).shallowCopy());
|
|
page.replaceKey("/Contents", contents);
|
|
|
|
// Insert the page manually.
|
|
QPDFObjectHandle root = pdf.getRoot();
|
|
QPDFObjectHandle pages = root.getKey("/Pages");
|
|
QPDFObjectHandle kids = pages.getKey("/Kids");
|
|
page.replaceKey("/Parent", pages);
|
|
pages.replaceKey(
|
|
"/Count",
|
|
QPDFObjectHandle::newInteger(1 + (int)all_pages.size()));
|
|
kids.appendItem(page);
|
|
assert(all_pages.size() == 10);
|
|
pdf.updateAllPagesCache();
|
|
assert(all_pages.size() == 11);
|
|
assert(all_pages.back().getObjectID() == page.getObjectID());
|
|
|
|
QPDFWriter w(pdf, "a.pdf");
|
|
w.setStaticID(true);
|
|
w.setStreamDataMode(qpdf_s_preserve);
|
|
w.write();
|
|
}
|
|
else if (n == 17)
|
|
{
|
|
// The input file to this test case is broken to exercise an
|
|
// error condition.
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
pdf.removePage(pages[0]);
|
|
std::cout << "you can't see this" << std::endl;
|
|
}
|
|
else if (n == 18)
|
|
{
|
|
// Remove a page and re-insert it in the same file.
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
|
|
// Remove pages from various places, checking to make sure
|
|
// that our pages reference is getting updated.
|
|
assert(pages.size() == 10);
|
|
QPDFObjectHandle page5 = pages[5];
|
|
pdf.removePage(page5);
|
|
pdf.addPage(page5, false);
|
|
assert(pages.size() == 10);
|
|
assert(pages.back().getObjectID() == page5.getObjectID());
|
|
|
|
QPDFWriter w(pdf, "a.pdf");
|
|
w.setStaticID(true);
|
|
w.setStreamDataMode(qpdf_s_preserve);
|
|
w.write();
|
|
}
|
|
else if (n == 19)
|
|
{
|
|
// Remove a page and re-insert it in the same file.
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
|
|
// Try to insert a page that's already there.
|
|
pdf.addPage(pages[5], false);
|
|
std::cout << "you can't see this" << std::endl;
|
|
}
|
|
else if (n == 20)
|
|
{
|
|
// Shallow copy an array
|
|
QPDFObjectHandle trailer = pdf.getTrailer();
|
|
QPDFObjectHandle qtest = trailer.getKey("/QTest");
|
|
QPDFObjectHandle copy = qtest.shallowCopy();
|
|
// Append shallow copy of a scalar
|
|
copy.appendItem(trailer.getKey("/Size").shallowCopy());
|
|
trailer.replaceKey("/QTest2", copy);
|
|
|
|
QPDFWriter w(pdf, "a.pdf");
|
|
w.setStaticID(true);
|
|
w.setStreamDataMode(qpdf_s_preserve);
|
|
w.write();
|
|
}
|
|
else if (n == 21)
|
|
{
|
|
// Try to shallow copy a stream
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
QPDFObjectHandle page = pages[0];
|
|
QPDFObjectHandle contents = page.getKey("/Contents");
|
|
contents.shallowCopy();
|
|
std::cout << "you can't see this" << std::endl;
|
|
}
|
|
else if (n == 22)
|
|
{
|
|
// Try to remove a page we don't have
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
QPDFObjectHandle page = pages[0];
|
|
pdf.removePage(page);
|
|
pdf.removePage(page);
|
|
std::cout << "you can't see this" << std::endl;
|
|
}
|
|
else if (n == 23)
|
|
{
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
pdf.removePage(pages.back());
|
|
}
|
|
else
|
|
{
|
|
throw std::runtime_error(std::string("invalid test ") +
|
|
QUtil::int_to_string(n));
|
|
}
|
|
|
|
if (filep)
|
|
{
|
|
fclose(filep);
|
|
}
|
|
std::cout << "test " << n << " done" << std::endl;
|
|
}
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
QUtil::setLineBuf(stdout);
|
|
if ((whoami = strrchr(argv[0], '/')) == NULL)
|
|
{
|
|
whoami = argv[0];
|
|
}
|
|
else
|
|
{
|
|
++whoami;
|
|
}
|
|
// For libtool's sake....
|
|
if (strncmp(whoami, "lt-", 3) == 0)
|
|
{
|
|
whoami += 3;
|
|
}
|
|
|
|
if (argc != 3)
|
|
{
|
|
usage();
|
|
}
|
|
|
|
try
|
|
{
|
|
int n = atoi(argv[1]);
|
|
char const* filename = argv[2];
|
|
runtest(n, filename);
|
|
}
|
|
catch (std::exception& e)
|
|
{
|
|
std::cerr << e.what() << std::endl;
|
|
exit(2);
|
|
}
|
|
|
|
return 0;
|
|
}
|