mirror of https://github.com/qpdf/qpdf.git
2595 lines
79 KiB
C++
2595 lines
79 KiB
C++
#include <iostream>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <qpdf/QUtil.hh>
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#include <qpdf/QTC.hh>
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#include <qpdf/ClosedFileInputSource.hh>
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#include <qpdf/FileInputSource.hh>
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#include <qpdf/Pl_StdioFile.hh>
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#include <qpdf/Pl_Discard.hh>
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#include <qpdf/PointerHolder.hh>
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#include <qpdf/QPDF.hh>
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#include <qpdf/QPDFPageDocumentHelper.hh>
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#include <qpdf/QPDFPageObjectHelper.hh>
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#include <qpdf/QPDFPageLabelDocumentHelper.hh>
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#include <qpdf/QPDFExc.hh>
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#include <qpdf/QPDFWriter.hh>
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static int const EXIT_ERROR = 2;
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static int const EXIT_WARNING = 3;
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static char const* whoami = 0;
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struct PageSpec
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{
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PageSpec(std::string const& filename,
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char const* password,
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char const* range) :
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filename(filename),
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password(password),
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range(range)
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{
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}
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std::string filename;
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char const* password;
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char const* range;
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};
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struct RotationSpec
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{
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RotationSpec(int angle = 0, bool relative = false) :
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angle(angle),
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relative(relative)
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{
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}
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int angle;
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bool relative;
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};
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struct Options
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{
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Options() :
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password(0),
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linearize(false),
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decrypt(false),
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split_pages(0),
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verbose(false),
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progress(false),
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suppress_warnings(false),
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copy_encryption(false),
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encryption_file(0),
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encryption_file_password(0),
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encrypt(false),
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password_is_hex_key(false),
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keylen(0),
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r2_print(true),
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r2_modify(true),
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r2_extract(true),
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r2_annotate(true),
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r3_accessibility(true),
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r3_extract(true),
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r3_print(qpdf_r3p_full),
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r3_modify(qpdf_r3m_all),
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force_V4(false),
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force_R5(false),
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cleartext_metadata(false),
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use_aes(false),
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stream_data_set(false),
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stream_data_mode(qpdf_s_compress),
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compress_streams(true),
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compress_streams_set(false),
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decode_level(qpdf_dl_generalized),
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decode_level_set(false),
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normalize_set(false),
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normalize(false),
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suppress_recovery(false),
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object_stream_set(false),
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object_stream_mode(qpdf_o_preserve),
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ignore_xref_streams(false),
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qdf_mode(false),
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preserve_unreferenced_objects(false),
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preserve_unreferenced_page_resources(false),
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keep_files_open(true),
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keep_files_open_set(false),
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newline_before_endstream(false),
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coalesce_contents(false),
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show_npages(false),
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deterministic_id(false),
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static_id(false),
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static_aes_iv(false),
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suppress_original_object_id(false),
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show_encryption(false),
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show_encryption_key(false),
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check_linearization(false),
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show_linearization(false),
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show_xref(false),
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show_obj(0),
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show_gen(0),
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show_raw_stream_data(false),
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show_filtered_stream_data(false),
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show_pages(false),
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show_page_images(false),
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check(false),
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require_outfile(true),
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infilename(0),
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outfilename(0)
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{
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}
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char const* password;
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bool linearize;
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bool decrypt;
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int split_pages;
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bool verbose;
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bool progress;
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bool suppress_warnings;
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bool copy_encryption;
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char const* encryption_file;
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char const* encryption_file_password;
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bool encrypt;
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bool password_is_hex_key;
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std::string user_password;
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std::string owner_password;
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int keylen;
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bool r2_print;
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bool r2_modify;
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bool r2_extract;
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bool r2_annotate;
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bool r3_accessibility;
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bool r3_extract;
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qpdf_r3_print_e r3_print;
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qpdf_r3_modify_e r3_modify;
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bool force_V4;
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bool force_R5;
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bool cleartext_metadata;
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bool use_aes;
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bool stream_data_set;
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qpdf_stream_data_e stream_data_mode;
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bool compress_streams;
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bool compress_streams_set;
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qpdf_stream_decode_level_e decode_level;
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bool decode_level_set;
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bool normalize_set;
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bool normalize;
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bool suppress_recovery;
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bool object_stream_set;
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qpdf_object_stream_e object_stream_mode;
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bool ignore_xref_streams;
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bool qdf_mode;
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bool preserve_unreferenced_objects;
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bool preserve_unreferenced_page_resources;
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bool keep_files_open;
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bool keep_files_open_set;
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bool newline_before_endstream;
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std::string linearize_pass1;
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bool coalesce_contents;
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std::string min_version;
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std::string force_version;
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bool show_npages;
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bool deterministic_id;
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bool static_id;
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bool static_aes_iv;
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bool suppress_original_object_id;
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bool show_encryption;
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bool show_encryption_key;
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bool check_linearization;
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bool show_linearization;
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bool show_xref;
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int show_obj;
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int show_gen;
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bool show_raw_stream_data;
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bool show_filtered_stream_data;
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bool show_pages;
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bool show_page_images;
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bool check;
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std::vector<PageSpec> page_specs;
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std::map<std::string, RotationSpec> rotations;
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bool require_outfile;
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char const* infilename;
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char const* outfilename;
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};
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struct QPDFPageData
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{
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QPDFPageData(std::string const& filename, QPDF* qpdf, char const* range);
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std::string filename;
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QPDF* qpdf;
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std::vector<QPDFObjectHandle> orig_pages;
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std::vector<int> selected_pages;
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};
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class DiscardContents: public QPDFObjectHandle::ParserCallbacks
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{
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public:
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virtual ~DiscardContents() {}
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virtual void handleObject(QPDFObjectHandle) {}
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virtual void handleEOF() {}
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};
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class ProgressReporter: public QPDFWriter::ProgressReporter
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{
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public:
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ProgressReporter(char const* filename) :
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filename(filename)
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{
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}
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virtual ~ProgressReporter()
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{
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}
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virtual void reportProgress(int);
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private:
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std::string filename;
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};
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void
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ProgressReporter::reportProgress(int percentage)
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{
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std::cout << whoami << ": " << filename << ": write progress: "
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<< percentage << "%" << std::endl;
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}
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// Note: let's not be too noisy about documenting the fact that this
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// software purposely fails to enforce the distinction between user
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// and owner passwords. A user password is sufficient to gain full
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// access to the PDF file, so there is nothing this software can do
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// with an owner password that it couldn't do with a user password
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// other than changing the /P value in the encryption dictionary.
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// (Setting this value requires the owner password.) The
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// documentation discusses this as well.
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static char const* help = "\
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\n\
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Usage: qpdf [ options ] { infilename | --empty } [ outfilename ]\n\
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\n\
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An option summary appears below. Please see the documentation for details.\n\
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\n\
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If @filename appears anywhere in the command-line, each line of filename\n\
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will be interpreted as an argument. No interpolation is done. Line\n\
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terminators are stripped. @- can be specified to read from standard input.\n\
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\n\
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Note that when contradictory options are provided, whichever options are\n\
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provided last take precedence.\n\
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\n\
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\n\
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Basic Options\n\
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-------------\n\
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\n\
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--version show version of qpdf\n\
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--copyright show qpdf's copyright and license information\n\
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--help show command-line argument help\n\
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--password=password specify a password for accessing encrypted files\n\
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--verbose provide additional informational output\n\
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--progress give progress indicators while writing output\n\
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--no-warn suppress warnings\n\
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--linearize generated a linearized (web optimized) file\n\
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--copy-encryption=file copy encryption parameters from specified file\n\
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--encryption-file-password=password\n\
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password used to open the file from which encryption\n\
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parameters are being copied\n\
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--encrypt options -- generate an encrypted file\n\
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--decrypt remove any encryption on the file\n\
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--password-is-hex-key treat primary password option as a hex-encoded key\n\
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--pages options -- select specific pages from one or more files\n\
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--rotate=[+|-]angle[:page-range]\n\
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rotate each specified page 90, 180, or 270 degrees;\n\
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rotate all pages if no page range is given\n\
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--split-pages=[n] write each output page to a separate file\n\
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\n\
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Note that you can use the @filename or @- syntax for any argument at any\n\
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point in the command. This provides a good way to specify a password without\n\
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having to explicitly put it on the command line.\n\
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\n\
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If none of --copy-encryption, --encrypt or --decrypt are given, qpdf will\n\
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preserve any encryption data associated with a file.\n\
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\n\
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Note that when copying encryption parameters from another file, all\n\
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parameters will be copied, including both user and owner passwords, even\n\
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if the user password is used to open the other file. This works even if\n\
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the owner password is not known.\n\
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\n\
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The --password-is-hex-key option overrides the normal computation of\n\
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encryption keys. It only applies to the password used to open the main\n\
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file. This option is not ordinarily useful but can be helpful for forensic\n\
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or investigatory purposes. See manual for further discussion.\n\
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\n\
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The --rotate flag can be used to specify pages to rotate pages either\n\
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90, 180, or 270 degrees. The page range is specified in the same\n\
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format as with the --pages option, described below. Repeat the option\n\
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to rotate multiple groups of pages. If the angle is preceded by + or -,\n\
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it is added to or subtracted from the original rotation. Otherwise, the\n\
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rotation angle is set explicitly to the given value.\n\
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\n\
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If --split-pages is specified, each page is written to a separate output\n\
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file. File names are generated as follows:\n\
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* If the string %d appears in the output file name, it is replaced with a\n\
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zero-padded page range starting from 1\n\
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* Otherwise, if the output file name ends in .pdf (case insensitive), a\n\
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zero-padded page range, preceded by a dash, is inserted before the file\n\
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extension\n\
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* Otherwise, the file name is appended with a zero-padded page range\n\
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preceded by a dash.\n\
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Page ranges are single page numbers for single-page groups or first-last\n\
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for multipage groups.\n\
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\n\
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\n\
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Encryption Options\n\
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------------------\n\
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\n\
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--encrypt user-password owner-password key-length flags --\n\
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\n\
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Note that -- terminates parsing of encryption flags.\n\
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\n\
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Either or both of the user password and the owner password may be\n\
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empty strings.\n\
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\n\
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key-length may be 40, 128, or 256\n\
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\n\
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Additional flags are dependent upon key length.\n\
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\n\
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If 40:\n\
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\n\
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--print=[yn] allow printing\n\
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--modify=[yn] allow document modification\n\
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--extract=[yn] allow text/graphic extraction\n\
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--annotate=[yn] allow comments and form fill-in and signing\n\
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\n\
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If 128:\n\
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\n\
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--accessibility=[yn] allow accessibility to visually impaired\n\
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--extract=[yn] allow other text/graphic extraction\n\
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--print=print-opt control printing access\n\
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--modify=modify-opt control modify access\n\
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--cleartext-metadata prevents encryption of metadata\n\
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--use-aes=[yn] indicates whether to use AES encryption\n\
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--force-V4 forces use of V=4 encryption handler\n\
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\n\
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If 256, options are the same as 128 with these exceptions:\n\
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--force-V4 this option is not available with 256-bit keys\n\
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--use-aes this option is always on with 256-bit keys\n\
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--force-R5 forces use of deprecated R=5 encryption\n\
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\n\
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print-opt may be:\n\
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\n\
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full allow full printing\n\
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low allow only low-resolution printing\n\
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none disallow printing\n\
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\n\
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modify-opt may be:\n\
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\n\
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all allow full document modification\n\
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annotate allow comment authoring and form operations\n\
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form allow form field fill-in and signing\n\
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assembly allow document assembly only\n\
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none allow no modifications\n\
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\n\
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The default for each permission option is to be fully permissive.\n\
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\n\
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Specifying cleartext-metadata forces the PDF version to at least 1.5.\n\
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Specifying use of AES forces the PDF version to at least 1.6. These\n\
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options are both off by default.\n\
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\n\
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The --force-V4 flag forces the V=4 encryption handler introduced in PDF 1.5\n\
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to be used even if not otherwise needed. This option is primarily useful\n\
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for testing qpdf and has no other practical use.\n\
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\n\
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\n\
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Page Selection Options\n\
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----------------------\n\
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\n\
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These options allow pages to be selected from one or more PDF files.\n\
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Whatever file is given as the primary input file is used as the\n\
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starting point, but its pages are replaced with pages as specified.\n\
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\n\
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--keep-files-open=[yn]\n\
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--pages file [ --password=password ] [ page-range ] ... --\n\
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\n\
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For each file that pages should be taken from, specify the file, a\n\
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password needed to open the file (if any), and a page range. The\n\
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password needs to be given only once per file. If any of the input\n\
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files are the same as the primary input file or the file used to copy\n\
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encryption parameters (if specified), you do not need to repeat the\n\
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password here. The same file can be repeated multiple times. All\n\
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non-page data (info, outlines, page numbers, etc. are taken from the\n\
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primary input file. To discard this, use --empty as the primary\n\
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input.\n\
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\n\
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By default, when more than 200 distinct files are specified, qpdf will\n\
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close each file when not being referenced. With 200 files or fewer, all\n\
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files will be kept open at the same time. This behavior can be overridden\n\
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by specifying --keep-files-open=[yn]. Closing and opening files can have\n\
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very high overhead on certain file systems, especially networked file\n\
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systems.\n\
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\n\
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The page range is a set of numbers separated by commas, ranges of\n\
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numbers separated dashes, or combinations of those. The character\n\
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\"z\" represents the last page. A number preceded by an \"r\" indicates\n\
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to count from the end, so \"r3-r1\" would be the last three pages of the\n\
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document. Pages can appear in any order. Ranges can appear with a\n\
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high number followed by a low number, which causes the pages to appear in\n\
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reverse. Repeating a number will cause an error, but the manual discusses\n\
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a workaround should you really want to include the same page twice.\n\
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\n\
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If the page range is omitted, the range of 1-z is assumed. qpdf decides\n\
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that the page range is omitted if the range argument is either -- or a\n\
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valid file name and not a valid range.\n\
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\n\
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See the manual for examples and a discussion of additional subtleties.\n\
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\n\
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\n\
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|
Advanced Parsing Options\n\
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-------------------------------\n\
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\n\
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These options control aspects of how qpdf reads PDF files. Mostly these are\n\
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of use to people who are working with damaged files. There is little reason\n\
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to use these options unless you are trying to solve specific problems.\n\
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\n\
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--suppress-recovery prevents qpdf from attempting to recover damaged files\n\
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--ignore-xref-streams tells qpdf to ignore any cross-reference streams\n\
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\n\
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\n\
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|
Advanced Transformation Options\n\
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-------------------------------\n\
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\n\
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These transformation options control fine points of how qpdf creates\n\
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the output file. Mostly these are of use only to people who are very\n\
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familiar with the PDF file format or who are PDF developers.\n\
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\n\
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--stream-data=option controls transformation of stream data (below)\n\
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--compress-streams=[yn] controls whether to compress streams on output\n\
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--decode-level=option controls how to filter streams from the input\n\
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--normalize-content=[yn] enables or disables normalization of content streams\n\
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--object-streams=mode controls handing of object streams\n\
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--preserve-unreferenced preserve unreferenced objects\n\
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--preserve-unreferenced-resources\n\
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preserve unreferenced page resources\n\
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--newline-before-endstream always put a newline before endstream\n\
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--coalesce-contents force all pages' content to be a single stream\n\
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--qdf turns on \"QDF mode\" (below)\n\
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--linearize-pass1=file write intermediate pass of linearized file\n\
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for debugging\n\
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--min-version=version sets the minimum PDF version of the output file\n\
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--force-version=version forces this to be the PDF version of the output file\n\
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\n\
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Version numbers may be expressed as major.minor.extension-level, so 1.7.3\n\
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means PDF version 1.7 at extension level 3.\n\
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\n\
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|
Values for stream data options:\n\
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\n\
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compress recompress stream data when possible (default)\n\
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preserve leave all stream data as is\n\
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uncompress uncompress stream data when possible\n\
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\n\
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Values for object stream mode:\n\
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\n\
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preserve preserve original object streams (default)\n\
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disable don't write any object streams\n\
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generate use object streams wherever possible\n\
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\n\
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When --compress-streams=n is specified, this overrides the default behavior\n\
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of qpdf, which is to attempt compress uncompressed streams. Setting\n\
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stream data mode to uncompress or preserve has the same effect.\n\
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\n\
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The --decode-level parameter may be set to one of the following values:\n\
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none do not decode streams\n\
|
|
generalized decode streams compressed with generalized filters\n\
|
|
including LZW, Flate, and the ASCII encoding filters.\n\
|
|
specialized additionally decode streams with non-lossy specialized\n\
|
|
filters including RunLength\n\
|
|
all additionally decode streams with lossy filters\n\
|
|
including DCT (JPEG)\n\
|
|
\n\
|
|
In qdf mode, by default, content normalization is turned on, and the\n\
|
|
stream data mode is set to uncompress.\n\
|
|
\n\
|
|
Setting the minimum PDF version of the output file may raise the version\n\
|
|
but will never lower it. Forcing the PDF version of the output file may\n\
|
|
set the PDF version to a lower value than actually allowed by the file's\n\
|
|
contents. You should only do this if you have no other possible way to\n\
|
|
open the file or if you know that the file definitely doesn't include\n\
|
|
features not supported later versions.\n\
|
|
\n\
|
|
Testing, Inspection, and Debugging Options\n\
|
|
------------------------------------------\n\
|
|
\n\
|
|
These options can be useful for digging into PDF files or for use in\n\
|
|
automated test suites for software that uses the qpdf library.\n\
|
|
\n\
|
|
--deterministic-id generate deterministic /ID\n\
|
|
--static-id generate static /ID: FOR TESTING ONLY!\n\
|
|
--static-aes-iv use a static initialization vector for AES-CBC\n\
|
|
This is option is not secure! FOR TESTING ONLY!\n\
|
|
--no-original-object-ids suppress original object ID comments in qdf mode\n\
|
|
--show-encryption quickly show encryption parameters\n\
|
|
--show-encryption-key when showing encryption, reveal the actual key\n\
|
|
--check-linearization check file integrity and linearization status\n\
|
|
--show-linearization check and show all linearization data\n\
|
|
--show-xref show the contents of the cross-reference table\n\
|
|
--show-object=obj[,gen] show the contents of the given object\n\
|
|
--raw-stream-data show raw stream data instead of object contents\n\
|
|
--filtered-stream-data show filtered stream data instead of object contents\n\
|
|
--show-npages print the number of pages in the file\n\
|
|
--show-pages shows the object/generation number for each page\n\
|
|
--with-images also shows the object IDs for images on each page\n\
|
|
--check check file structure + encryption, linearization\n\
|
|
\n\
|
|
The --raw-stream-data and --filtered-stream-data options are ignored\n\
|
|
unless --show-object is given. Either of these options will cause the\n\
|
|
stream data to be written to standard output.\n\
|
|
\n\
|
|
If --filtered-stream-data is given and --normalize-content=y is also\n\
|
|
given, qpdf will attempt to normalize the stream data as if it is a\n\
|
|
page content stream. This attempt will be made even if it is not a\n\
|
|
page content stream, in which case it will produce unusable results.\n\
|
|
\n\
|
|
Ordinarily, qpdf exits with a status of 0 on success or a status of 2\n\
|
|
if any errors occurred. If there were warnings but not errors, qpdf\n\
|
|
exits with a status of 3. If warnings would have been issued but --no-warn\n\
|
|
was given, an exit status of 3 is still used.\n\
|
|
\n";
|
|
|
|
void usage(std::string const& msg)
|
|
{
|
|
std::cerr
|
|
<< std::endl
|
|
<< whoami << ": " << msg << std::endl
|
|
<< std::endl
|
|
<< "Usage: " << whoami << " [options] infile outfile" << std::endl
|
|
<< "For detailed help, run " << whoami << " --help" << std::endl
|
|
<< std::endl;
|
|
exit(EXIT_ERROR);
|
|
}
|
|
|
|
static std::string show_bool(bool v)
|
|
{
|
|
return v ? "allowed" : "not allowed";
|
|
}
|
|
|
|
static std::string show_encryption_method(QPDF::encryption_method_e method)
|
|
{
|
|
std::string result = "unknown";
|
|
switch (method)
|
|
{
|
|
case QPDF::e_none:
|
|
result = "none";
|
|
break;
|
|
case QPDF::e_unknown:
|
|
result = "unknown";
|
|
break;
|
|
case QPDF::e_rc4:
|
|
result = "RC4";
|
|
break;
|
|
case QPDF::e_aes:
|
|
result = "AESv2";
|
|
break;
|
|
case QPDF::e_aesv3:
|
|
result = "AESv3";
|
|
break;
|
|
// no default so gcc will warn for missing case
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static void show_encryption(QPDF& pdf, Options& o)
|
|
{
|
|
// Extract /P from /Encrypt
|
|
int R = 0;
|
|
int P = 0;
|
|
int V = 0;
|
|
QPDF::encryption_method_e stream_method = QPDF::e_unknown;
|
|
QPDF::encryption_method_e string_method = QPDF::e_unknown;
|
|
QPDF::encryption_method_e file_method = QPDF::e_unknown;
|
|
if (! pdf.isEncrypted(R, P, V,
|
|
stream_method, string_method, file_method))
|
|
{
|
|
std::cout << "File is not encrypted" << std::endl;
|
|
}
|
|
else
|
|
{
|
|
std::cout << "R = " << R << std::endl;
|
|
std::cout << "P = " << P << std::endl;
|
|
std::string user_password = pdf.getTrimmedUserPassword();
|
|
std::string encryption_key = pdf.getEncryptionKey();
|
|
std::cout << "User password = " << user_password << std::endl;
|
|
if (o.show_encryption_key)
|
|
{
|
|
std::cout << "Encryption key = "
|
|
<< QUtil::hex_encode(encryption_key) << std::endl;
|
|
}
|
|
std::cout << "extract for accessibility: "
|
|
<< show_bool(pdf.allowAccessibility()) << std::endl
|
|
<< "extract for any purpose: "
|
|
<< show_bool(pdf.allowExtractAll()) << std::endl
|
|
<< "print low resolution: "
|
|
<< show_bool(pdf.allowPrintLowRes()) << std::endl
|
|
<< "print high resolution: "
|
|
<< show_bool(pdf.allowPrintHighRes()) << std::endl
|
|
<< "modify document assembly: "
|
|
<< show_bool(pdf.allowModifyAssembly()) << std::endl
|
|
<< "modify forms: "
|
|
<< show_bool(pdf.allowModifyForm()) << std::endl
|
|
<< "modify annotations: "
|
|
<< show_bool(pdf.allowModifyAnnotation()) << std::endl
|
|
<< "modify other: "
|
|
<< show_bool(pdf.allowModifyOther()) << std::endl
|
|
<< "modify anything: "
|
|
<< show_bool(pdf.allowModifyAll()) << std::endl;
|
|
if (V >= 4)
|
|
{
|
|
std::cout << "stream encryption method: "
|
|
<< show_encryption_method(stream_method) << std::endl
|
|
<< "string encryption method: "
|
|
<< show_encryption_method(string_method) << std::endl
|
|
<< "file encryption method: "
|
|
<< show_encryption_method(file_method) << std::endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
static std::vector<int> parse_numrange(char const* range, int max,
|
|
bool throw_error = false)
|
|
{
|
|
try
|
|
{
|
|
return QUtil::parse_numrange(range, max);
|
|
}
|
|
catch (std::runtime_error& e)
|
|
{
|
|
if (throw_error)
|
|
{
|
|
throw(e);
|
|
}
|
|
else
|
|
{
|
|
usage(e.what());
|
|
}
|
|
}
|
|
return std::vector<int>();
|
|
}
|
|
|
|
static void
|
|
parse_encrypt_options(
|
|
int argc, char* argv[], int& cur_arg,
|
|
std::string& user_password, std::string& owner_password, int& keylen,
|
|
bool& r2_print, bool& r2_modify, bool& r2_extract, bool& r2_annotate,
|
|
bool& r3_accessibility, bool& r3_extract,
|
|
qpdf_r3_print_e& r3_print, qpdf_r3_modify_e& r3_modify,
|
|
bool& force_V4, bool& cleartext_metadata, bool& use_aes,
|
|
bool& force_R5)
|
|
{
|
|
if (cur_arg + 3 >= argc)
|
|
{
|
|
usage("insufficient arguments to --encrypt");
|
|
}
|
|
user_password = argv[cur_arg++];
|
|
owner_password = argv[cur_arg++];
|
|
std::string len_str = argv[cur_arg++];
|
|
if (len_str == "40")
|
|
{
|
|
keylen = 40;
|
|
}
|
|
else if (len_str == "128")
|
|
{
|
|
keylen = 128;
|
|
}
|
|
else if (len_str == "256")
|
|
{
|
|
keylen = 256;
|
|
use_aes = true;
|
|
}
|
|
else
|
|
{
|
|
usage("encryption key length must be 40, 128, or 256");
|
|
}
|
|
while (1)
|
|
{
|
|
char* arg = argv[cur_arg];
|
|
if (arg == 0)
|
|
{
|
|
usage("insufficient arguments to --encrypt");
|
|
}
|
|
else if (strcmp(arg, "--") == 0)
|
|
{
|
|
return;
|
|
}
|
|
if (arg[0] == '-')
|
|
{
|
|
++arg;
|
|
if (arg[0] == '-')
|
|
{
|
|
++arg;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
usage(std::string("invalid encryption parameter ") + arg);
|
|
}
|
|
++cur_arg;
|
|
char* parameter = strchr(arg, '=');
|
|
if (parameter)
|
|
{
|
|
*parameter++ = 0;
|
|
}
|
|
if (strcmp(arg, "print") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--print must be given as --print=option");
|
|
}
|
|
std::string val = parameter;
|
|
if (keylen == 40)
|
|
{
|
|
if (val == "y")
|
|
{
|
|
r2_print = true;
|
|
}
|
|
else if (val == "n")
|
|
{
|
|
r2_print = false;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid 40-bit -print parameter");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (val == "full")
|
|
{
|
|
r3_print = qpdf_r3p_full;
|
|
}
|
|
else if (val == "low")
|
|
{
|
|
r3_print = qpdf_r3p_low;
|
|
}
|
|
else if (val == "none")
|
|
{
|
|
r3_print = qpdf_r3p_none;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid 128-bit -print parameter");
|
|
}
|
|
}
|
|
}
|
|
else if (strcmp(arg, "modify") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--modify must be given as --modify=option");
|
|
}
|
|
std::string val = parameter;
|
|
if (keylen == 40)
|
|
{
|
|
if (val == "y")
|
|
{
|
|
r2_modify = true;
|
|
}
|
|
else if (val == "n")
|
|
{
|
|
r2_modify = false;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid 40-bit -modify parameter");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (val == "all")
|
|
{
|
|
r3_modify = qpdf_r3m_all;
|
|
}
|
|
else if (val == "annotate")
|
|
{
|
|
r3_modify = qpdf_r3m_annotate;
|
|
}
|
|
else if (val == "form")
|
|
{
|
|
r3_modify = qpdf_r3m_form;
|
|
}
|
|
else if (val == "assembly")
|
|
{
|
|
r3_modify = qpdf_r3m_assembly;
|
|
}
|
|
else if (val == "none")
|
|
{
|
|
r3_modify = qpdf_r3m_none;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid 128-bit -modify parameter");
|
|
}
|
|
}
|
|
}
|
|
else if (strcmp(arg, "extract") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--extract must be given as --extract=option");
|
|
}
|
|
std::string val = parameter;
|
|
bool result = false;
|
|
if (val == "y")
|
|
{
|
|
result = true;
|
|
}
|
|
else if (val == "n")
|
|
{
|
|
result = false;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid -extract parameter");
|
|
}
|
|
if (keylen == 40)
|
|
{
|
|
r2_extract = result;
|
|
}
|
|
else
|
|
{
|
|
r3_extract = result;
|
|
}
|
|
}
|
|
else if (strcmp(arg, "annotate") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--annotate must be given as --annotate=option");
|
|
}
|
|
std::string val = parameter;
|
|
bool result = false;
|
|
if (val == "y")
|
|
{
|
|
result = true;
|
|
}
|
|
else if (val == "n")
|
|
{
|
|
result = false;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid -annotate parameter");
|
|
}
|
|
if (keylen == 40)
|
|
{
|
|
r2_annotate = result;
|
|
}
|
|
else
|
|
{
|
|
usage("-annotate invalid for 128-bit keys");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "accessibility") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--accessibility must be given as"
|
|
" --accessibility=option");
|
|
}
|
|
std::string val = parameter;
|
|
bool result = false;
|
|
if (val == "y")
|
|
{
|
|
result = true;
|
|
}
|
|
else if (val == "n")
|
|
{
|
|
result = false;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid -accessibility parameter");
|
|
}
|
|
if (keylen == 40)
|
|
{
|
|
usage("-accessibility invalid for 40-bit keys");
|
|
}
|
|
else
|
|
{
|
|
r3_accessibility = result;
|
|
}
|
|
}
|
|
else if (strcmp(arg, "cleartext-metadata") == 0)
|
|
{
|
|
if (parameter)
|
|
{
|
|
usage("--cleartext-metadata does not take a parameter");
|
|
}
|
|
if (keylen == 40)
|
|
{
|
|
usage("--cleartext-metadata is invalid for 40-bit keys");
|
|
}
|
|
else
|
|
{
|
|
cleartext_metadata = true;
|
|
}
|
|
}
|
|
else if (strcmp(arg, "force-V4") == 0)
|
|
{
|
|
if (parameter)
|
|
{
|
|
usage("--force-V4 does not take a parameter");
|
|
}
|
|
if (keylen != 128)
|
|
{
|
|
usage("--force-V4 is invalid only for 128-bit keys");
|
|
}
|
|
else
|
|
{
|
|
force_V4 = true;
|
|
}
|
|
}
|
|
else if (strcmp(arg, "force-R5") == 0)
|
|
{
|
|
if (parameter)
|
|
{
|
|
usage("--force-R5 does not take a parameter");
|
|
}
|
|
if (keylen != 256)
|
|
{
|
|
usage("--force-R5 is invalid only for 256-bit keys");
|
|
}
|
|
else
|
|
{
|
|
force_R5 = true;
|
|
}
|
|
}
|
|
else if (strcmp(arg, "use-aes") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--use-aes must be given as --extract=option");
|
|
}
|
|
std::string val = parameter;
|
|
bool result = false;
|
|
if (val == "y")
|
|
{
|
|
result = true;
|
|
}
|
|
else if (val == "n")
|
|
{
|
|
result = false;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid -use-aes parameter");
|
|
}
|
|
if ((keylen == 40) && result)
|
|
{
|
|
usage("use-aes is invalid for 40-bit keys");
|
|
}
|
|
else if ((keylen == 256) && (! result))
|
|
{
|
|
// qpdf would happily create files encrypted with RC4
|
|
// using /V=5, but Adobe reader can't read them.
|
|
usage("use-aes can't be disabled with 256-bit keys");
|
|
}
|
|
else
|
|
{
|
|
use_aes = result;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
usage(std::string("invalid encryption parameter --") + arg);
|
|
}
|
|
}
|
|
}
|
|
|
|
static std::vector<PageSpec>
|
|
parse_pages_options(
|
|
int argc, char* argv[], int& cur_arg)
|
|
{
|
|
std::vector<PageSpec> result;
|
|
while (1)
|
|
{
|
|
if ((cur_arg < argc) && (strcmp(argv[cur_arg], "--") == 0))
|
|
{
|
|
break;
|
|
}
|
|
if (cur_arg + 1 >= argc)
|
|
{
|
|
usage("insufficient arguments to --pages");
|
|
}
|
|
char const* file = argv[cur_arg++];
|
|
char const* password = 0;
|
|
char const* range = argv[cur_arg++];
|
|
if (strncmp(range, "--password=", 11) == 0)
|
|
{
|
|
// Oh, that's the password, not the range
|
|
if (cur_arg + 1 >= argc)
|
|
{
|
|
usage("insufficient arguments to --pages");
|
|
}
|
|
password = range + 11;
|
|
range = argv[cur_arg++];
|
|
}
|
|
|
|
// See if the user omitted the range entirely, in which case
|
|
// we assume "1-z".
|
|
bool range_omitted = false;
|
|
if (strcmp(range, "--") == 0)
|
|
{
|
|
// The filename or password was the last argument
|
|
QTC::TC("qpdf", "qpdf pages range omitted at end");
|
|
range_omitted = true;
|
|
}
|
|
else
|
|
{
|
|
try
|
|
{
|
|
parse_numrange(range, 0, true);
|
|
}
|
|
catch (std::runtime_error& e1)
|
|
{
|
|
// The range is invalid. Let's see if it's a file.
|
|
try
|
|
{
|
|
fclose(QUtil::safe_fopen(range, "rb"));
|
|
// Yup, it's a file.
|
|
QTC::TC("qpdf", "qpdf pages range omitted in middle");
|
|
range_omitted = true;
|
|
}
|
|
catch (std::runtime_error& e2)
|
|
{
|
|
// Ignore. The range is invalid and not a file.
|
|
// We'll get an error message later.
|
|
}
|
|
}
|
|
}
|
|
if (range_omitted)
|
|
{
|
|
--cur_arg;
|
|
range = "1-z";
|
|
}
|
|
|
|
result.push_back(PageSpec(file, password, range));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
QPDFPageData::QPDFPageData(std::string const& filename,
|
|
QPDF* qpdf,
|
|
char const* range) :
|
|
filename(filename),
|
|
qpdf(qpdf),
|
|
orig_pages(qpdf->getAllPages())
|
|
{
|
|
this->selected_pages = parse_numrange(range, this->orig_pages.size());
|
|
}
|
|
|
|
static void parse_version(std::string const& full_version_string,
|
|
std::string& version, int& extension_level)
|
|
{
|
|
PointerHolder<char> vp(true, QUtil::copy_string(full_version_string));
|
|
char* v = vp.getPointer();
|
|
char* p1 = strchr(v, '.');
|
|
char* p2 = (p1 ? strchr(1 + p1, '.') : 0);
|
|
if (p2 && *(p2 + 1))
|
|
{
|
|
*p2++ = '\0';
|
|
extension_level = QUtil::string_to_int(p2);
|
|
}
|
|
version = v;
|
|
}
|
|
|
|
static void read_args_from_file(char const* filename,
|
|
std::vector<PointerHolder<char> >& new_argv)
|
|
{
|
|
std::list<std::string> lines;
|
|
if (strcmp(filename, "-") == 0)
|
|
{
|
|
QTC::TC("qpdf", "qpdf read args from stdin");
|
|
lines = QUtil::read_lines_from_file(std::cin);
|
|
}
|
|
else
|
|
{
|
|
QTC::TC("qpdf", "qpdf read args from file");
|
|
lines = QUtil::read_lines_from_file(filename);
|
|
}
|
|
for (std::list<std::string>::iterator iter = lines.begin();
|
|
iter != lines.end(); ++iter)
|
|
{
|
|
new_argv.push_back(
|
|
PointerHolder<char>(true, QUtil::copy_string((*iter).c_str())));
|
|
}
|
|
}
|
|
|
|
static void handle_help_version(int argc, char* argv[])
|
|
{
|
|
// Make sure the output looks right on an 80-column display.
|
|
|
|
if ((argc == 2) &&
|
|
((strcmp(argv[1], "--version") == 0) ||
|
|
(strcmp(argv[1], "-version") == 0)))
|
|
{
|
|
std::cout
|
|
<< whoami << " version " << QPDF::QPDFVersion() << std::endl
|
|
<< "Run " << whoami << " --copyright to see copyright and license information."
|
|
<< std::endl;
|
|
exit(0);
|
|
}
|
|
|
|
if ((argc == 2) &&
|
|
((strcmp(argv[1], "--copyright") == 0) ||
|
|
(strcmp(argv[1], "-copyright") == 0)))
|
|
{
|
|
// 1 2 3 4 5 6 7 8
|
|
// 12345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
std::cout
|
|
<< whoami << " version " << QPDF::QPDFVersion() << std::endl
|
|
<< std::endl
|
|
<< "Copyright (c) 2005-2018 Jay Berkenbilt"
|
|
<< std::endl
|
|
<< "QPDF is licensed under the Apache License, Version 2.0 (the \"License\");"
|
|
<< std::endl
|
|
<< "not use this file except in compliance with the License."
|
|
<< std::endl
|
|
<< "You may obtain a copy of the License at"
|
|
<< std::endl
|
|
<< std::endl
|
|
<< " http://www.apache.org/licenses/LICENSE-2.0"
|
|
<< std::endl
|
|
<< std::endl
|
|
<< "Unless required by applicable law or agreed to in writing, software"
|
|
<< std::endl
|
|
<< "distributed under the License is distributed on an \"AS IS\" BASIS,"
|
|
<< std::endl
|
|
<< "WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied."
|
|
<< std::endl
|
|
<< "See the License for the specific language governing permissions and"
|
|
<< std::endl
|
|
<< "limitations under the License."
|
|
<< std::endl
|
|
<< std::endl
|
|
<< "Versions of qpdf prior to version 7 were released under the terms"
|
|
<< std::endl
|
|
<< "of version 2.0 of the Artistic License. At your option, you may"
|
|
<< std::endl
|
|
<< "continue to consider qpdf to be licensed under those terms. Please"
|
|
<< std::endl
|
|
<< "see the manual for additional information."
|
|
<< std::endl;
|
|
exit(0);
|
|
}
|
|
|
|
if ((argc == 2) &&
|
|
((strcmp(argv[1], "--help") == 0) ||
|
|
(strcmp(argv[1], "-help") == 0)))
|
|
{
|
|
std::cout << help;
|
|
exit(0);
|
|
}
|
|
}
|
|
|
|
static void parse_rotation_parameter(Options& o, std::string const& parameter)
|
|
{
|
|
std::string angle_str;
|
|
std::string range;
|
|
size_t colon = parameter.find(':');
|
|
int relative = 0;
|
|
if (colon != std::string::npos)
|
|
{
|
|
if (colon > 0)
|
|
{
|
|
angle_str = parameter.substr(0, colon);
|
|
}
|
|
if (colon + 1 < parameter.length())
|
|
{
|
|
range = parameter.substr(colon + 1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
angle_str = parameter;
|
|
}
|
|
if (angle_str.length() > 0)
|
|
{
|
|
char first = angle_str.at(0);
|
|
if ((first == '+') || (first == '-'))
|
|
{
|
|
relative = ((first == '+') ? 1 : -1);
|
|
angle_str = angle_str.substr(1);
|
|
}
|
|
else if (! QUtil::is_digit(angle_str.at(0)))
|
|
{
|
|
angle_str = "";
|
|
}
|
|
}
|
|
if (range.empty())
|
|
{
|
|
range = "1-z";
|
|
}
|
|
bool range_valid = false;
|
|
try
|
|
{
|
|
parse_numrange(range.c_str(), 0, true);
|
|
range_valid = true;
|
|
}
|
|
catch (std::runtime_error const&)
|
|
{
|
|
// ignore
|
|
}
|
|
if (range_valid &&
|
|
((angle_str == "90") || (angle_str == "180") || (angle_str == "270")))
|
|
{
|
|
int angle = QUtil::string_to_int(angle_str.c_str());
|
|
if (relative == -1)
|
|
{
|
|
angle = -angle;
|
|
}
|
|
o.rotations[range] = RotationSpec(angle, (relative != 0));
|
|
}
|
|
else
|
|
{
|
|
usage("invalid parameter to rotate: " + parameter);
|
|
}
|
|
}
|
|
|
|
static void parse_options(int argc, char* argv[], Options& o)
|
|
{
|
|
for (int i = 1; i < argc; ++i)
|
|
{
|
|
char const* arg = argv[i];
|
|
if ((arg[0] == '-') && (strcmp(arg, "-") != 0))
|
|
{
|
|
++arg;
|
|
if (arg[0] == '-')
|
|
{
|
|
// Be lax about -arg vs --arg
|
|
++arg;
|
|
}
|
|
char* parameter = const_cast<char*>(strchr(arg, '='));
|
|
if (parameter)
|
|
{
|
|
*parameter++ = 0;
|
|
}
|
|
|
|
if (strcmp(arg, "password") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--password must be given as --password=pass");
|
|
}
|
|
o.password = parameter;
|
|
}
|
|
else if (strcmp(arg, "empty") == 0)
|
|
{
|
|
o.infilename = "";
|
|
}
|
|
else if (strcmp(arg, "linearize") == 0)
|
|
{
|
|
o.linearize = true;
|
|
}
|
|
else if (strcmp(arg, "encrypt") == 0)
|
|
{
|
|
parse_encrypt_options(
|
|
argc, argv, ++i,
|
|
o.user_password, o.owner_password, o.keylen,
|
|
o.r2_print, o.r2_modify, o.r2_extract, o.r2_annotate,
|
|
o.r3_accessibility, o.r3_extract, o.r3_print, o.r3_modify,
|
|
o.force_V4, o.cleartext_metadata, o.use_aes, o.force_R5);
|
|
o.encrypt = true;
|
|
o.decrypt = false;
|
|
o.copy_encryption = false;
|
|
}
|
|
else if (strcmp(arg, "decrypt") == 0)
|
|
{
|
|
o.decrypt = true;
|
|
o.encrypt = false;
|
|
o.copy_encryption = false;
|
|
}
|
|
else if (strcmp(arg, "password-is-hex-key") == 0)
|
|
{
|
|
o.password_is_hex_key = true;
|
|
}
|
|
else if (strcmp(arg, "copy-encryption") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--copy-encryption must be given as"
|
|
"--copy_encryption=file");
|
|
}
|
|
o.encryption_file = parameter;
|
|
o.copy_encryption = true;
|
|
o.encrypt = false;
|
|
o.decrypt = false;
|
|
}
|
|
else if (strcmp(arg, "encryption-file-password") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--encryption-file-password must be given as"
|
|
"--encryption-file-password=password");
|
|
}
|
|
o.encryption_file_password = parameter;
|
|
}
|
|
else if (strcmp(arg, "pages") == 0)
|
|
{
|
|
o.page_specs = parse_pages_options(argc, argv, ++i);
|
|
if (o.page_specs.empty())
|
|
{
|
|
usage("--pages: no page specifications given");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "rotate") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--rotate must be given as"
|
|
" --rotate=[+|-]angle:page-range");
|
|
}
|
|
parse_rotation_parameter(o, parameter);
|
|
}
|
|
else if (strcmp(arg, "stream-data") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--stream-data must be given as"
|
|
"--stream-data=option");
|
|
}
|
|
o.stream_data_set = true;
|
|
if (strcmp(parameter, "compress") == 0)
|
|
{
|
|
o.stream_data_mode = qpdf_s_compress;
|
|
}
|
|
else if (strcmp(parameter, "preserve") == 0)
|
|
{
|
|
o.stream_data_mode = qpdf_s_preserve;
|
|
}
|
|
else if (strcmp(parameter, "uncompress") == 0)
|
|
{
|
|
o.stream_data_mode = qpdf_s_uncompress;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid stream-data option");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "compress-streams") == 0)
|
|
{
|
|
o.compress_streams_set = true;
|
|
if (parameter && (strcmp(parameter, "y") == 0))
|
|
{
|
|
o.compress_streams = true;
|
|
}
|
|
else if (parameter && (strcmp(parameter, "n") == 0))
|
|
{
|
|
o.compress_streams = false;
|
|
}
|
|
else
|
|
{
|
|
usage("--compress-streams must be given as"
|
|
" --compress-streams=[yn]");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "decode-level") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--decode-level must be given as"
|
|
"--decode-level=option");
|
|
}
|
|
o.decode_level_set = true;
|
|
if (strcmp(parameter, "none") == 0)
|
|
{
|
|
o.decode_level = qpdf_dl_none;
|
|
}
|
|
else if (strcmp(parameter, "generalized") == 0)
|
|
{
|
|
o.decode_level = qpdf_dl_generalized;
|
|
}
|
|
else if (strcmp(parameter, "specialized") == 0)
|
|
{
|
|
o.decode_level = qpdf_dl_specialized;
|
|
}
|
|
else if (strcmp(parameter, "all") == 0)
|
|
{
|
|
o.decode_level = qpdf_dl_all;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid stream-data option");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "normalize-content") == 0)
|
|
{
|
|
o.normalize_set = true;
|
|
if (parameter && (strcmp(parameter, "y") == 0))
|
|
{
|
|
o.normalize = true;
|
|
}
|
|
else if (parameter && (strcmp(parameter, "n") == 0))
|
|
{
|
|
o.normalize = false;
|
|
}
|
|
else
|
|
{
|
|
usage("--normalize-content must be given as"
|
|
" --normalize-content=[yn]");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "suppress-recovery") == 0)
|
|
{
|
|
o.suppress_recovery = true;
|
|
}
|
|
else if (strcmp(arg, "object-streams") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--object-streams must be given as"
|
|
" --object-streams=option");
|
|
}
|
|
o.object_stream_set = true;
|
|
if (strcmp(parameter, "disable") == 0)
|
|
{
|
|
o.object_stream_mode = qpdf_o_disable;
|
|
}
|
|
else if (strcmp(parameter, "preserve") == 0)
|
|
{
|
|
o.object_stream_mode = qpdf_o_preserve;
|
|
}
|
|
else if (strcmp(parameter, "generate") == 0)
|
|
{
|
|
o.object_stream_mode = qpdf_o_generate;
|
|
}
|
|
else
|
|
{
|
|
usage("invalid object stream mode");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "ignore-xref-streams") == 0)
|
|
{
|
|
o.ignore_xref_streams = true;
|
|
}
|
|
else if (strcmp(arg, "qdf") == 0)
|
|
{
|
|
o.qdf_mode = true;
|
|
}
|
|
else if (strcmp(arg, "preserve-unreferenced") == 0)
|
|
{
|
|
o.preserve_unreferenced_objects = true;
|
|
}
|
|
else if (strcmp(arg, "preserve-unreferenced-resources") == 0)
|
|
{
|
|
o.preserve_unreferenced_page_resources = true;
|
|
}
|
|
else if (strcmp(arg, "keep-files-open") == 0)
|
|
{
|
|
o.keep_files_open_set = true;
|
|
if (parameter && (strcmp(parameter, "y") == 0))
|
|
{
|
|
o.keep_files_open = true;
|
|
}
|
|
else if (parameter && (strcmp(parameter, "n") == 0))
|
|
{
|
|
o.keep_files_open = false;
|
|
}
|
|
else
|
|
{
|
|
usage("--keep-files-open must be given as"
|
|
" --keep-files-open=[yn]");
|
|
}
|
|
}
|
|
else if (strcmp(arg, "newline-before-endstream") == 0)
|
|
{
|
|
o.newline_before_endstream = true;
|
|
}
|
|
else if (strcmp(arg, "linearize-pass1") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--linearize-pass1 be given as"
|
|
"--linearize-pass1=filename");
|
|
}
|
|
o.linearize_pass1 = parameter;
|
|
}
|
|
else if (strcmp(arg, "coalesce-contents") == 0)
|
|
{
|
|
o.coalesce_contents = true;
|
|
}
|
|
else if (strcmp(arg, "min-version") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--min-version be given as"
|
|
"--min-version=version");
|
|
}
|
|
o.min_version = parameter;
|
|
}
|
|
else if (strcmp(arg, "force-version") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--force-version be given as"
|
|
"--force-version=version");
|
|
}
|
|
o.force_version = parameter;
|
|
}
|
|
else if (strcmp(arg, "split-pages") == 0)
|
|
{
|
|
int n = ((parameter == 0) ? 1 :
|
|
QUtil::string_to_int(parameter));
|
|
o.split_pages = n;
|
|
}
|
|
else if (strcmp(arg, "verbose") == 0)
|
|
{
|
|
o.verbose = true;
|
|
}
|
|
else if (strcmp(arg, "progress") == 0)
|
|
{
|
|
o.progress = true;
|
|
}
|
|
else if (strcmp(arg, "no-warn") == 0)
|
|
{
|
|
o.suppress_warnings = true;
|
|
}
|
|
else if (strcmp(arg, "deterministic-id") == 0)
|
|
{
|
|
o.deterministic_id = true;
|
|
}
|
|
else if (strcmp(arg, "static-id") == 0)
|
|
{
|
|
o.static_id = true;
|
|
}
|
|
else if (strcmp(arg, "static-aes-iv") == 0)
|
|
{
|
|
o.static_aes_iv = true;
|
|
}
|
|
else if (strcmp(arg, "no-original-object-ids") == 0)
|
|
{
|
|
o.suppress_original_object_id = true;
|
|
}
|
|
else if (strcmp(arg, "show-encryption") == 0)
|
|
{
|
|
o.show_encryption = true;
|
|
o.require_outfile = false;
|
|
}
|
|
else if (strcmp(arg, "show-encryption-key") == 0)
|
|
{
|
|
o.show_encryption_key = true;
|
|
}
|
|
else if (strcmp(arg, "check-linearization") == 0)
|
|
{
|
|
o.check_linearization = true;
|
|
o.require_outfile = false;
|
|
}
|
|
else if (strcmp(arg, "show-linearization") == 0)
|
|
{
|
|
o.show_linearization = true;
|
|
o.require_outfile = false;
|
|
}
|
|
else if (strcmp(arg, "show-xref") == 0)
|
|
{
|
|
o.show_xref = true;
|
|
o.require_outfile = false;
|
|
}
|
|
else if (strcmp(arg, "show-object") == 0)
|
|
{
|
|
if (parameter == 0)
|
|
{
|
|
usage("--show-object must be given as"
|
|
" --show-object=obj[,gen]");
|
|
}
|
|
char* obj = parameter;
|
|
char* gen = obj;
|
|
if ((gen = strchr(obj, ',')) != 0)
|
|
{
|
|
*gen++ = 0;
|
|
o.show_gen = QUtil::string_to_int(gen);
|
|
}
|
|
o.show_obj = QUtil::string_to_int(obj);
|
|
o.require_outfile = false;
|
|
}
|
|
else if (strcmp(arg, "raw-stream-data") == 0)
|
|
{
|
|
o.show_raw_stream_data = true;
|
|
}
|
|
else if (strcmp(arg, "filtered-stream-data") == 0)
|
|
{
|
|
o.show_filtered_stream_data = true;
|
|
}
|
|
else if (strcmp(arg, "show-npages") == 0)
|
|
{
|
|
o.show_npages = true;
|
|
o.require_outfile = false;
|
|
}
|
|
else if (strcmp(arg, "show-pages") == 0)
|
|
{
|
|
o.show_pages = true;
|
|
o.require_outfile = false;
|
|
}
|
|
else if (strcmp(arg, "with-images") == 0)
|
|
{
|
|
o.show_page_images = true;
|
|
}
|
|
else if (strcmp(arg, "check") == 0)
|
|
{
|
|
o.check = true;
|
|
o.require_outfile = false;
|
|
}
|
|
else
|
|
{
|
|
usage(std::string("unknown option --") + arg);
|
|
}
|
|
}
|
|
else if (o.infilename == 0)
|
|
{
|
|
o.infilename = arg;
|
|
}
|
|
else if (o.outfilename == 0)
|
|
{
|
|
o.outfilename = arg;
|
|
}
|
|
else
|
|
{
|
|
usage(std::string("unknown argument ") + arg);
|
|
}
|
|
}
|
|
|
|
if (o.infilename == 0)
|
|
{
|
|
usage("an input file name is required");
|
|
}
|
|
else if (o.require_outfile && (o.outfilename == 0))
|
|
{
|
|
usage("an output file name is required; use - for standard output");
|
|
}
|
|
else if ((! o.require_outfile) && (o.outfilename != 0))
|
|
{
|
|
usage("no output file may be given for this option");
|
|
}
|
|
|
|
if (o.require_outfile && (strcmp(o.outfilename, "-") == 0))
|
|
{
|
|
if (o.split_pages)
|
|
{
|
|
usage("--split-pages may not be used when"
|
|
" writing to standard output");
|
|
}
|
|
if (o.verbose)
|
|
{
|
|
usage("--verbose may not be used when"
|
|
" writing to standard output");
|
|
}
|
|
if (o.progress)
|
|
{
|
|
usage("--progress may not be used when"
|
|
" writing to standard output");
|
|
}
|
|
}
|
|
|
|
if (QUtil::same_file(o.infilename, o.outfilename))
|
|
{
|
|
QTC::TC("qpdf", "qpdf same file error");
|
|
usage("input file and output file are the same; this would cause input file to be lost");
|
|
}
|
|
}
|
|
|
|
static void set_qpdf_options(QPDF& pdf, Options& o)
|
|
{
|
|
if (o.ignore_xref_streams)
|
|
{
|
|
pdf.setIgnoreXRefStreams(true);
|
|
}
|
|
if (o.suppress_recovery)
|
|
{
|
|
pdf.setAttemptRecovery(false);
|
|
}
|
|
if (o.password_is_hex_key)
|
|
{
|
|
pdf.setPasswordIsHexKey(true);
|
|
}
|
|
if (o.suppress_warnings)
|
|
{
|
|
pdf.setSuppressWarnings(true);
|
|
}
|
|
}
|
|
|
|
static void do_check(QPDF& pdf, Options& o, int& exit_code)
|
|
{
|
|
// Code below may set okay to false but not to true.
|
|
// We assume okay until we prove otherwise but may
|
|
// continue to perform additional checks after finding
|
|
// errors.
|
|
bool okay = true;
|
|
std::cout << "checking " << o.infilename << std::endl;
|
|
try
|
|
{
|
|
int extension_level = pdf.getExtensionLevel();
|
|
std::cout << "PDF Version: " << pdf.getPDFVersion();
|
|
if (extension_level > 0)
|
|
{
|
|
std::cout << " extension level "
|
|
<< pdf.getExtensionLevel();
|
|
}
|
|
std::cout << std::endl;
|
|
show_encryption(pdf, o);
|
|
if (pdf.isLinearized())
|
|
{
|
|
std::cout << "File is linearized\n";
|
|
if (! pdf.checkLinearization())
|
|
{
|
|
// any errors are reported by checkLinearization()
|
|
okay = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
std::cout << "File is not linearized\n";
|
|
}
|
|
|
|
// Write the file no nowhere, uncompressing
|
|
// streams. This causes full file traversal and
|
|
// decoding of all streams we can decode.
|
|
QPDFWriter w(pdf);
|
|
Pl_Discard discard;
|
|
w.setOutputPipeline(&discard);
|
|
w.setDecodeLevel(qpdf_dl_all);
|
|
w.write();
|
|
|
|
// Parse all content streams
|
|
QPDFPageDocumentHelper dh(pdf);
|
|
std::vector<QPDFPageObjectHelper> pages = dh.getAllPages();
|
|
DiscardContents discard_contents;
|
|
int pageno = 0;
|
|
for (std::vector<QPDFPageObjectHelper>::iterator iter =
|
|
pages.begin();
|
|
iter != pages.end(); ++iter)
|
|
{
|
|
QPDFPageObjectHelper& page(*iter);
|
|
++pageno;
|
|
try
|
|
{
|
|
page.parsePageContents(&discard_contents);
|
|
}
|
|
catch (QPDFExc& e)
|
|
{
|
|
okay = false;
|
|
std::cout << "page " << pageno << ": "
|
|
<< e.what() << std::endl;
|
|
}
|
|
}
|
|
}
|
|
catch (std::exception& e)
|
|
{
|
|
std::cout << e.what() << std::endl;
|
|
okay = false;
|
|
}
|
|
if (okay)
|
|
{
|
|
if (! pdf.getWarnings().empty())
|
|
{
|
|
exit_code = EXIT_WARNING;
|
|
}
|
|
else
|
|
{
|
|
std::cout << "No syntax or stream encoding errors"
|
|
<< " found; the file may still contain"
|
|
<< std::endl
|
|
<< "errors that qpdf cannot detect"
|
|
<< std::endl;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
exit_code = EXIT_ERROR;
|
|
}
|
|
}
|
|
|
|
static void do_show_obj(QPDF& pdf, Options& o, int& exit_code)
|
|
{
|
|
QPDFObjectHandle obj = pdf.getObjectByID(o.show_obj, o.show_gen);
|
|
if (obj.isStream())
|
|
{
|
|
if (o.show_raw_stream_data || o.show_filtered_stream_data)
|
|
{
|
|
bool filter = o.show_filtered_stream_data;
|
|
if (filter &&
|
|
(! obj.pipeStreamData(0, 0, qpdf_dl_all)))
|
|
{
|
|
QTC::TC("qpdf", "qpdf unable to filter");
|
|
std::cerr << "Unable to filter stream data."
|
|
<< std::endl;
|
|
exit_code = EXIT_ERROR;
|
|
}
|
|
else
|
|
{
|
|
QUtil::binary_stdout();
|
|
Pl_StdioFile out("stdout", stdout);
|
|
obj.pipeStreamData(
|
|
&out,
|
|
(filter && o.normalize) ? qpdf_ef_normalize : 0,
|
|
filter ? qpdf_dl_all : qpdf_dl_none);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
std::cout
|
|
<< "Object is stream. Dictionary:" << std::endl
|
|
<< obj.getDict().unparseResolved() << std::endl;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
std::cout << obj.unparseResolved() << std::endl;
|
|
}
|
|
}
|
|
|
|
static void do_show_pages(QPDF& pdf, Options& o)
|
|
{
|
|
QPDFPageDocumentHelper dh(pdf);
|
|
if (o.show_page_images)
|
|
{
|
|
dh.pushInheritedAttributesToPage();
|
|
}
|
|
std::vector<QPDFPageObjectHelper> pages = dh.getAllPages();
|
|
int pageno = 0;
|
|
for (std::vector<QPDFPageObjectHelper>::iterator iter = pages.begin();
|
|
iter != pages.end(); ++iter)
|
|
{
|
|
QPDFPageObjectHelper& ph(*iter);
|
|
QPDFObjectHandle page = ph.getObjectHandle();
|
|
++pageno;
|
|
|
|
std::cout << "page " << pageno << ": "
|
|
<< page.getObjectID() << " "
|
|
<< page.getGeneration() << " R" << std::endl;
|
|
if (o.show_page_images)
|
|
{
|
|
std::map<std::string, QPDFObjectHandle> images =
|
|
ph.getPageImages();
|
|
if (! images.empty())
|
|
{
|
|
std::cout << " images:" << std::endl;
|
|
for (std::map<std::string,
|
|
QPDFObjectHandle>::iterator
|
|
iter = images.begin();
|
|
iter != images.end(); ++iter)
|
|
{
|
|
std::string const& name = (*iter).first;
|
|
QPDFObjectHandle image = (*iter).second;
|
|
QPDFObjectHandle dict = image.getDict();
|
|
int width =
|
|
dict.getKey("/Width").getIntValue();
|
|
int height =
|
|
dict.getKey("/Height").getIntValue();
|
|
std::cout << " " << name << ": "
|
|
<< image.unparse()
|
|
<< ", " << width << " x " << height
|
|
<< std::endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
std::cout << " content:" << std::endl;
|
|
std::vector<QPDFObjectHandle> content =
|
|
ph.getPageContents();
|
|
for (std::vector<QPDFObjectHandle>::iterator iter =
|
|
content.begin();
|
|
iter != content.end(); ++iter)
|
|
{
|
|
std::cout << " " << (*iter).unparse() << std::endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void do_inspection(QPDF& pdf, Options& o)
|
|
{
|
|
int exit_code = 0;
|
|
if (o.check)
|
|
{
|
|
do_check(pdf, o, exit_code);
|
|
}
|
|
if (o.show_npages)
|
|
{
|
|
QTC::TC("qpdf", "qpdf npages");
|
|
std::cout << pdf.getRoot().getKey("/Pages").
|
|
getKey("/Count").getIntValue() << std::endl;
|
|
}
|
|
if (o.show_encryption)
|
|
{
|
|
show_encryption(pdf, o);
|
|
}
|
|
if (o.check_linearization)
|
|
{
|
|
if (pdf.checkLinearization())
|
|
{
|
|
std::cout << o.infilename << ": no linearization errors"
|
|
<< std::endl;
|
|
}
|
|
else
|
|
{
|
|
exit_code = EXIT_ERROR;
|
|
}
|
|
}
|
|
if (o.show_linearization)
|
|
{
|
|
if (pdf.isLinearized())
|
|
{
|
|
pdf.showLinearizationData();
|
|
}
|
|
else
|
|
{
|
|
std::cout << o.infilename << " is not linearized"
|
|
<< std::endl;
|
|
}
|
|
}
|
|
if (o.show_xref)
|
|
{
|
|
pdf.showXRefTable();
|
|
}
|
|
if (o.show_obj > 0)
|
|
{
|
|
do_show_obj(pdf, o, exit_code);
|
|
}
|
|
if (o.show_pages)
|
|
{
|
|
do_show_pages(pdf, o);
|
|
}
|
|
if (exit_code)
|
|
{
|
|
exit(exit_code);
|
|
}
|
|
}
|
|
|
|
static void handle_transformations(QPDF& pdf, Options& o)
|
|
{
|
|
QPDFPageDocumentHelper dh(pdf);
|
|
if (o.coalesce_contents)
|
|
{
|
|
std::vector<QPDFPageObjectHelper> pages = dh.getAllPages();
|
|
for (std::vector<QPDFPageObjectHelper>::iterator iter = pages.begin();
|
|
iter != pages.end(); ++iter)
|
|
{
|
|
(*iter).coalesceContentStreams();
|
|
}
|
|
}
|
|
}
|
|
|
|
static void handle_page_specs(QPDF& pdf, Options& o,
|
|
std::vector<PointerHolder<QPDF> >& page_heap)
|
|
{
|
|
// Parse all page specifications and translate them into lists of
|
|
// actual pages.
|
|
|
|
if (! o.keep_files_open_set)
|
|
{
|
|
// Count the number of distinct files to determine whether we
|
|
// should keep files open or not. Rather than trying to code
|
|
// some portable heuristic based on OS limits, just hard-code
|
|
// this at a given number and allow users to override.
|
|
std::set<std::string> filenames;
|
|
for (std::vector<PageSpec>::iterator iter = o.page_specs.begin();
|
|
iter != o.page_specs.end(); ++iter)
|
|
{
|
|
PageSpec& page_spec = *iter;
|
|
filenames.insert(page_spec.filename);
|
|
}
|
|
// NOTE: The number 200 for this threshold is in the help
|
|
// message and manual and is baked into the test suite.
|
|
if (filenames.size() > 200)
|
|
{
|
|
QTC::TC("qpdf", "qpdf disable keep files open");
|
|
if (o.verbose)
|
|
{
|
|
std::cout << whoami << ": selecting --keep-open-files=n"
|
|
<< std::endl;
|
|
}
|
|
o.keep_files_open = false;
|
|
}
|
|
else
|
|
{
|
|
if (o.verbose)
|
|
{
|
|
std::cout << whoami << ": selecting --keep-open-files=y"
|
|
<< std::endl;
|
|
}
|
|
o.keep_files_open = true;
|
|
QTC::TC("qpdf", "qpdf don't disable keep files open");
|
|
}
|
|
}
|
|
|
|
// Create a QPDF object for each file that we may take pages from.
|
|
std::map<std::string, QPDF*> page_spec_qpdfs;
|
|
std::map<std::string, ClosedFileInputSource*> page_spec_cfis;
|
|
page_spec_qpdfs[o.infilename] = &pdf;
|
|
std::vector<QPDFPageData> parsed_specs;
|
|
for (std::vector<PageSpec>::iterator iter = o.page_specs.begin();
|
|
iter != o.page_specs.end(); ++iter)
|
|
{
|
|
PageSpec& page_spec = *iter;
|
|
if (page_spec_qpdfs.count(page_spec.filename) == 0)
|
|
{
|
|
// Open the PDF file and store the QPDF object. Throw a
|
|
// PointerHolder to the qpdf into a heap so that it
|
|
// survives through writing the output but gets cleaned up
|
|
// automatically at the end. Do not canonicalize the file
|
|
// name. Using two different paths to refer to the same
|
|
// file is a document workaround for duplicating a page.
|
|
// If you are using this an example of how to do this with
|
|
// the API, you can just create two different QPDF objects
|
|
// to the same underlying file with the same path to
|
|
// achieve the same affect.
|
|
PointerHolder<QPDF> qpdf_ph = new QPDF();
|
|
page_heap.push_back(qpdf_ph);
|
|
QPDF* qpdf = qpdf_ph.getPointer();
|
|
char const* password = page_spec.password;
|
|
if (o.encryption_file && (password == 0) &&
|
|
(page_spec.filename == o.encryption_file))
|
|
{
|
|
QTC::TC("qpdf", "qpdf pages encryption password");
|
|
password = o.encryption_file_password;
|
|
}
|
|
if (o.verbose)
|
|
{
|
|
std::cout << whoami << ": processing "
|
|
<< page_spec.filename << std::endl;
|
|
}
|
|
PointerHolder<InputSource> is;
|
|
ClosedFileInputSource* cis = 0;
|
|
if (! o.keep_files_open)
|
|
{
|
|
QTC::TC("qpdf", "qpdf keep files open n");
|
|
cis = new ClosedFileInputSource(page_spec.filename.c_str());
|
|
is = cis;
|
|
cis->stayOpen(true);
|
|
}
|
|
else
|
|
{
|
|
QTC::TC("qpdf", "qpdf keep files open y");
|
|
FileInputSource* fis = new FileInputSource();
|
|
is = fis;
|
|
fis->setFilename(page_spec.filename.c_str());
|
|
}
|
|
qpdf->processInputSource(is, password);
|
|
page_spec_qpdfs[page_spec.filename] = qpdf;
|
|
if (cis)
|
|
{
|
|
cis->stayOpen(false);
|
|
page_spec_cfis[page_spec.filename] = cis;
|
|
}
|
|
}
|
|
|
|
// Read original pages from the PDF, and parse the page range
|
|
// associated with this occurrence of the file.
|
|
parsed_specs.push_back(
|
|
QPDFPageData(page_spec.filename,
|
|
page_spec_qpdfs[page_spec.filename],
|
|
page_spec.range));
|
|
}
|
|
|
|
if (! o.preserve_unreferenced_page_resources)
|
|
{
|
|
for (std::map<std::string, QPDF*>::iterator iter =
|
|
page_spec_qpdfs.begin();
|
|
iter != page_spec_qpdfs.end(); ++iter)
|
|
{
|
|
std::string const& filename = (*iter).first;
|
|
ClosedFileInputSource* cis = 0;
|
|
if (page_spec_cfis.count(filename))
|
|
{
|
|
cis = page_spec_cfis[filename];
|
|
cis->stayOpen(true);
|
|
}
|
|
QPDFPageDocumentHelper dh(*((*iter).second));
|
|
dh.pushInheritedAttributesToPage();
|
|
dh.removeUnreferencedResources();
|
|
if (cis)
|
|
{
|
|
cis->stayOpen(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Clear all pages out of the primary QPDF's pages tree but leave
|
|
// the objects in place in the file so they can be re-added
|
|
// without changing their object numbers. This enables other
|
|
// things in the original file, such as outlines, to continue to
|
|
// work.
|
|
if (o.verbose)
|
|
{
|
|
std::cout << whoami
|
|
<< ": removing unreferenced pages from primary input"
|
|
<< std::endl;
|
|
}
|
|
QPDFPageDocumentHelper dh(pdf);
|
|
std::vector<QPDFPageObjectHelper> orig_pages = dh.getAllPages();
|
|
for (std::vector<QPDFPageObjectHelper>::iterator iter =
|
|
orig_pages.begin();
|
|
iter != orig_pages.end(); ++iter)
|
|
{
|
|
dh.removePage(*iter);
|
|
}
|
|
|
|
// Add all the pages from all the files in the order specified.
|
|
// Keep track of any pages from the original file that we are
|
|
// selecting.
|
|
std::set<int> selected_from_orig;
|
|
std::vector<QPDFObjectHandle> new_labels;
|
|
bool any_page_labels = false;
|
|
int out_pageno = 0;
|
|
for (std::vector<QPDFPageData>::iterator iter =
|
|
parsed_specs.begin();
|
|
iter != parsed_specs.end(); ++iter)
|
|
{
|
|
QPDFPageData& page_data = *iter;
|
|
ClosedFileInputSource* cis = 0;
|
|
if (page_spec_cfis.count(page_data.filename))
|
|
{
|
|
cis = page_spec_cfis[page_data.filename];
|
|
cis->stayOpen(true);
|
|
}
|
|
QPDFPageLabelDocumentHelper pldh(*page_data.qpdf);
|
|
if (pldh.hasPageLabels())
|
|
{
|
|
any_page_labels = true;
|
|
}
|
|
if (o.verbose)
|
|
{
|
|
std::cout << whoami << ": adding pages from "
|
|
<< page_data.filename << std::endl;
|
|
}
|
|
for (std::vector<int>::iterator pageno_iter =
|
|
page_data.selected_pages.begin();
|
|
pageno_iter != page_data.selected_pages.end();
|
|
++pageno_iter, ++out_pageno)
|
|
{
|
|
// Pages are specified from 1 but numbered from 0 in the
|
|
// vector
|
|
int pageno = *pageno_iter - 1;
|
|
pldh.getLabelsForPageRange(pageno, pageno, out_pageno,
|
|
new_labels);
|
|
dh.addPage(page_data.orig_pages.at(pageno), false);
|
|
if (page_data.qpdf == &pdf)
|
|
{
|
|
// This is a page from the original file. Keep track
|
|
// of the fact that we are using it.
|
|
selected_from_orig.insert(pageno);
|
|
}
|
|
}
|
|
if (cis)
|
|
{
|
|
cis->stayOpen(false);
|
|
}
|
|
}
|
|
if (any_page_labels)
|
|
{
|
|
QPDFObjectHandle page_labels =
|
|
QPDFObjectHandle::newDictionary();
|
|
page_labels.replaceKey(
|
|
"/Nums", QPDFObjectHandle::newArray(new_labels));
|
|
pdf.getRoot().replaceKey("/PageLabels", page_labels);
|
|
}
|
|
|
|
// Delete page objects for unused page in primary. This prevents
|
|
// those objects from being preserved by being referred to from
|
|
// other places, such as the outlines dictionary.
|
|
for (size_t pageno = 0; pageno < orig_pages.size(); ++pageno)
|
|
{
|
|
if (selected_from_orig.count(pageno) == 0)
|
|
{
|
|
pdf.replaceObject(
|
|
orig_pages.at(pageno).getObjectHandle().getObjGen(),
|
|
QPDFObjectHandle::newNull());
|
|
}
|
|
}
|
|
}
|
|
|
|
static void handle_rotations(QPDF& pdf, Options& o)
|
|
{
|
|
QPDFPageDocumentHelper dh(pdf);
|
|
std::vector<QPDFPageObjectHelper> pages = dh.getAllPages();
|
|
int npages = static_cast<int>(pages.size());
|
|
for (std::map<std::string, RotationSpec>::iterator iter =
|
|
o.rotations.begin();
|
|
iter != o.rotations.end(); ++iter)
|
|
{
|
|
std::string const& range = (*iter).first;
|
|
RotationSpec const& rspec = (*iter).second;
|
|
std::vector<int> to_rotate = parse_numrange(range.c_str(), npages);
|
|
for (std::vector<int>::iterator i2 = to_rotate.begin();
|
|
i2 != to_rotate.end(); ++i2)
|
|
{
|
|
int pageno = *i2 - 1;
|
|
if ((pageno >= 0) && (pageno < npages))
|
|
{
|
|
pages.at(pageno).rotatePage(rspec.angle, rspec.relative);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void set_encryption_options(QPDF& pdf, Options& o, QPDFWriter& w)
|
|
{
|
|
int R = 0;
|
|
if (o.keylen == 40)
|
|
{
|
|
R = 2;
|
|
}
|
|
else if (o.keylen == 128)
|
|
{
|
|
if (o.force_V4 || o.cleartext_metadata || o.use_aes)
|
|
{
|
|
R = 4;
|
|
}
|
|
else
|
|
{
|
|
R = 3;
|
|
}
|
|
}
|
|
else if (o.keylen == 256)
|
|
{
|
|
if (o.force_R5)
|
|
{
|
|
R = 5;
|
|
}
|
|
else
|
|
{
|
|
R = 6;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw std::logic_error("bad encryption keylen");
|
|
}
|
|
if ((R > 3) && (o.r3_accessibility == false))
|
|
{
|
|
std::cerr << whoami
|
|
<< ": -accessibility=n is ignored for modern"
|
|
<< " encryption formats" << std::endl;
|
|
}
|
|
switch (R)
|
|
{
|
|
case 2:
|
|
w.setR2EncryptionParameters(
|
|
o.user_password.c_str(), o.owner_password.c_str(),
|
|
o.r2_print, o.r2_modify, o.r2_extract, o.r2_annotate);
|
|
break;
|
|
case 3:
|
|
w.setR3EncryptionParameters(
|
|
o.user_password.c_str(), o.owner_password.c_str(),
|
|
o.r3_accessibility, o.r3_extract, o.r3_print, o.r3_modify);
|
|
break;
|
|
case 4:
|
|
w.setR4EncryptionParameters(
|
|
o.user_password.c_str(), o.owner_password.c_str(),
|
|
o.r3_accessibility, o.r3_extract, o.r3_print, o.r3_modify,
|
|
!o.cleartext_metadata, o.use_aes);
|
|
break;
|
|
case 5:
|
|
w.setR5EncryptionParameters(
|
|
o.user_password.c_str(), o.owner_password.c_str(),
|
|
o.r3_accessibility, o.r3_extract, o.r3_print, o.r3_modify,
|
|
!o.cleartext_metadata);
|
|
break;
|
|
case 6:
|
|
w.setR6EncryptionParameters(
|
|
o.user_password.c_str(), o.owner_password.c_str(),
|
|
o.r3_accessibility, o.r3_extract, o.r3_print, o.r3_modify,
|
|
!o.cleartext_metadata);
|
|
break;
|
|
default:
|
|
throw std::logic_error("bad encryption R value");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void set_writer_options(QPDF& pdf, Options& o, QPDFWriter& w)
|
|
{
|
|
if (o.qdf_mode)
|
|
{
|
|
w.setQDFMode(true);
|
|
}
|
|
if (o.preserve_unreferenced_objects)
|
|
{
|
|
w.setPreserveUnreferencedObjects(true);
|
|
}
|
|
if (o.newline_before_endstream)
|
|
{
|
|
w.setNewlineBeforeEndstream(true);
|
|
}
|
|
if (o.normalize_set)
|
|
{
|
|
w.setContentNormalization(o.normalize);
|
|
}
|
|
if (o.stream_data_set)
|
|
{
|
|
w.setStreamDataMode(o.stream_data_mode);
|
|
}
|
|
if (o.compress_streams_set)
|
|
{
|
|
w.setCompressStreams(o.compress_streams);
|
|
}
|
|
if (o.decode_level_set)
|
|
{
|
|
w.setDecodeLevel(o.decode_level);
|
|
}
|
|
if (o.decrypt)
|
|
{
|
|
w.setPreserveEncryption(false);
|
|
}
|
|
if (o.deterministic_id)
|
|
{
|
|
w.setDeterministicID(true);
|
|
}
|
|
if (o.static_id)
|
|
{
|
|
w.setStaticID(true);
|
|
}
|
|
if (o.static_aes_iv)
|
|
{
|
|
w.setStaticAesIV(true);
|
|
}
|
|
if (o.suppress_original_object_id)
|
|
{
|
|
w.setSuppressOriginalObjectIDs(true);
|
|
}
|
|
if (o.copy_encryption)
|
|
{
|
|
QPDF encryption_pdf;
|
|
encryption_pdf.processFile(
|
|
o.encryption_file, o.encryption_file_password);
|
|
w.copyEncryptionParameters(encryption_pdf);
|
|
}
|
|
if (o.encrypt)
|
|
{
|
|
set_encryption_options(pdf, o, w);
|
|
}
|
|
if (o.linearize)
|
|
{
|
|
w.setLinearization(true);
|
|
}
|
|
if (! o.linearize_pass1.empty())
|
|
{
|
|
w.setLinearizationPass1Filename(o.linearize_pass1);
|
|
}
|
|
if (o.object_stream_set)
|
|
{
|
|
w.setObjectStreamMode(o.object_stream_mode);
|
|
}
|
|
if (! o.min_version.empty())
|
|
{
|
|
std::string version;
|
|
int extension_level = 0;
|
|
parse_version(o.min_version, version, extension_level);
|
|
w.setMinimumPDFVersion(version, extension_level);
|
|
}
|
|
if (! o.force_version.empty())
|
|
{
|
|
std::string version;
|
|
int extension_level = 0;
|
|
parse_version(o.force_version, version, extension_level);
|
|
w.forcePDFVersion(version, extension_level);
|
|
}
|
|
if (o.progress && o.outfilename)
|
|
{
|
|
w.registerProgressReporter(new ProgressReporter(o.outfilename));
|
|
}
|
|
}
|
|
|
|
static void write_outfile(QPDF& pdf, Options& o)
|
|
{
|
|
if (o.split_pages)
|
|
{
|
|
// Generate output file pattern
|
|
std::string before;
|
|
std::string after;
|
|
size_t len = strlen(o.outfilename);
|
|
char* num_spot = strstr(const_cast<char*>(o.outfilename), "%d");
|
|
if (num_spot != 0)
|
|
{
|
|
QTC::TC("qpdf", "qpdf split-pages %d");
|
|
before = std::string(o.outfilename, (num_spot - o.outfilename));
|
|
after = num_spot + 2;
|
|
}
|
|
else if ((len >= 4) &&
|
|
(QUtil::strcasecmp(o.outfilename + len - 4, ".pdf") == 0))
|
|
{
|
|
QTC::TC("qpdf", "qpdf split-pages .pdf");
|
|
before = std::string(o.outfilename, len - 4) + "-";
|
|
after = o.outfilename + len - 4;
|
|
}
|
|
else
|
|
{
|
|
QTC::TC("qpdf", "qpdf split-pages other");
|
|
before = std::string(o.outfilename) + "-";
|
|
}
|
|
|
|
if (! o.preserve_unreferenced_page_resources)
|
|
{
|
|
QPDFPageDocumentHelper dh(pdf);
|
|
dh.pushInheritedAttributesToPage();
|
|
dh.removeUnreferencedResources();
|
|
}
|
|
QPDFPageLabelDocumentHelper pldh(pdf);
|
|
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
|
|
int pageno_len = QUtil::int_to_string(pages.size()).length();
|
|
unsigned int num_pages = pages.size();
|
|
for (unsigned int i = 0; i < num_pages; i += o.split_pages)
|
|
{
|
|
unsigned int first = i + 1;
|
|
unsigned int last = i + o.split_pages;
|
|
if (last > num_pages)
|
|
{
|
|
last = num_pages;
|
|
}
|
|
QPDF outpdf;
|
|
outpdf.emptyPDF();
|
|
for (unsigned int pageno = first; pageno <= last; ++pageno)
|
|
{
|
|
QPDFObjectHandle page = pages.at(pageno - 1);
|
|
outpdf.addPage(page, false);
|
|
}
|
|
if (pldh.hasPageLabels())
|
|
{
|
|
std::vector<QPDFObjectHandle> labels;
|
|
pldh.getLabelsForPageRange(first - 1, last - 1, 0, labels);
|
|
QPDFObjectHandle page_labels =
|
|
QPDFObjectHandle::newDictionary();
|
|
page_labels.replaceKey(
|
|
"/Nums", QPDFObjectHandle::newArray(labels));
|
|
outpdf.getRoot().replaceKey("/PageLabels", page_labels);
|
|
}
|
|
// Copying the outlines tree, names table, and any
|
|
// outdated Dests key from the original file will make
|
|
// some things work in the split files. It is not a
|
|
// complete solution, but at least outlines whose
|
|
// destinations are on pages that have been preserved will
|
|
// work normally. There are other top-level structures
|
|
// that should be copied as well. This will be improved in
|
|
// the future.
|
|
std::list<std::string> to_copy;
|
|
to_copy.push_back("/Names");
|
|
to_copy.push_back("/Dests");
|
|
to_copy.push_back("/Outlines");
|
|
for (std::list<std::string>::iterator iter = to_copy.begin();
|
|
iter != to_copy.end(); ++iter)
|
|
{
|
|
QPDFObjectHandle orig = pdf.getRoot().getKey(*iter);
|
|
if (! orig.isIndirect())
|
|
{
|
|
orig = pdf.makeIndirectObject(orig);
|
|
}
|
|
outpdf.getRoot().replaceKey(
|
|
*iter,
|
|
outpdf.copyForeignObject(orig));
|
|
}
|
|
std::string page_range = QUtil::int_to_string(first, pageno_len);
|
|
if (o.split_pages > 1)
|
|
{
|
|
page_range += "-" + QUtil::int_to_string(last, pageno_len);
|
|
}
|
|
std::string outfile = before + page_range + after;
|
|
QPDFWriter w(outpdf, outfile.c_str());
|
|
set_writer_options(outpdf, o, w);
|
|
w.write();
|
|
if (o.verbose)
|
|
{
|
|
std::cout << whoami << ": wrote file " << outfile << std::endl;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (strcmp(o.outfilename, "-") == 0)
|
|
{
|
|
o.outfilename = 0;
|
|
}
|
|
QPDFWriter w(pdf, o.outfilename);
|
|
set_writer_options(pdf, o, w);
|
|
w.write();
|
|
if (o.verbose)
|
|
{
|
|
std::cout << whoami << ": wrote file "
|
|
<< o.outfilename << std::endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
whoami = QUtil::getWhoami(argv[0]);
|
|
QUtil::setLineBuf(stdout);
|
|
|
|
// For libtool's sake....
|
|
if (strncmp(whoami, "lt-", 3) == 0)
|
|
{
|
|
whoami += 3;
|
|
}
|
|
|
|
handle_help_version(argc, argv);
|
|
|
|
// Support reading arguments from files. Create a new argv. Ensure
|
|
// that argv itself as well as all its contents are automatically
|
|
// deleted by using PointerHolder objects to back the pointers in
|
|
// argv.
|
|
std::vector<PointerHolder<char> > new_argv;
|
|
new_argv.push_back(PointerHolder<char>(true, QUtil::copy_string(argv[0])));
|
|
for (int i = 1; i < argc; ++i)
|
|
{
|
|
if ((strlen(argv[i]) > 1) && (argv[i][0] == '@'))
|
|
{
|
|
read_args_from_file(1+argv[i], new_argv);
|
|
}
|
|
else
|
|
{
|
|
new_argv.push_back(
|
|
PointerHolder<char>(true, QUtil::copy_string(argv[i])));
|
|
}
|
|
}
|
|
PointerHolder<char*> argv_ph(true, new char*[1+new_argv.size()]);
|
|
argv = argv_ph.getPointer();
|
|
for (size_t i = 0; i < new_argv.size(); ++i)
|
|
{
|
|
argv[i] = new_argv.at(i).getPointer();
|
|
}
|
|
argc = static_cast<int>(new_argv.size());
|
|
argv[argc] = 0;
|
|
|
|
Options o;
|
|
parse_options(argc, argv, o);
|
|
|
|
try
|
|
{
|
|
QPDF pdf;
|
|
set_qpdf_options(pdf, o);
|
|
if (strcmp(o.infilename, "") == 0)
|
|
{
|
|
pdf.emptyPDF();
|
|
}
|
|
else
|
|
{
|
|
pdf.processFile(o.infilename, o.password);
|
|
}
|
|
|
|
handle_transformations(pdf, o);
|
|
std::vector<PointerHolder<QPDF> > page_heap;
|
|
if (! o.page_specs.empty())
|
|
{
|
|
handle_page_specs(pdf, o, page_heap);
|
|
}
|
|
if (! o.rotations.empty())
|
|
{
|
|
handle_rotations(pdf, o);
|
|
}
|
|
|
|
if (o.outfilename == 0)
|
|
{
|
|
do_inspection(pdf, o);
|
|
}
|
|
else
|
|
{
|
|
write_outfile(pdf, o);
|
|
}
|
|
if (! pdf.getWarnings().empty())
|
|
{
|
|
if (! o.suppress_warnings)
|
|
{
|
|
std::cerr << whoami << ": operation succeeded with warnings;"
|
|
<< " resulting file may have some problems"
|
|
<< std::endl;
|
|
}
|
|
// Still exit with warning code even if warnings were suppressed.
|
|
exit(EXIT_WARNING);
|
|
}
|
|
}
|
|
catch (std::exception& e)
|
|
{
|
|
std::cerr << e.what() << std::endl;
|
|
exit(EXIT_ERROR);
|
|
}
|
|
|
|
return 0;
|
|
}
|