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Fixing bugs (uncolored tiling pattern should ignore colors), refactoring

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This commit is contained in:
Jakub Melka
2019-09-27 18:41:56 +02:00
parent 59ad9afadd
commit 9941438e99
19 changed files with 459 additions and 324 deletions
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44
PdfForQtLib/sources/pdfsecurityhandler.cpp
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@ -206,7 +206,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
if (!encryptionDictionaryObject.isDictionary())
{
throw PDFParserException(PDFTranslationContext::tr("Invalid encryption dictionary."));
throw PDFException(PDFTranslationContext::tr("Invalid encryption dictionary."));
}
const PDFDictionary* dictionary = encryptionDictionaryObject.getDictionary();
@ -224,7 +224,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
{
if (required)
{
throw PDFParserException(PDFTranslationContext::tr("Invalid value for entry '%1' in encryption dictionary. Name expected.").arg(QString::fromLatin1(key)));
throw PDFException(PDFTranslationContext::tr("Invalid value for entry '%1' in encryption dictionary. Name expected.").arg(QString::fromLatin1(key)));
}
return defaultValue ? QByteArray(defaultValue) : QByteArray();
@ -240,7 +240,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
{
if (required)
{
throw PDFParserException(PDFTranslationContext::tr("Invalid value for entry '%1' in encryption dictionary. Integer expected.").arg(QString::fromLatin1(key)));
throw PDFException(PDFTranslationContext::tr("Invalid value for entry '%1' in encryption dictionary. Integer expected.").arg(QString::fromLatin1(key)));
}
return defaultValue;
@ -252,7 +252,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
QByteArray filterName = getName(dictionary, "Filter", true);
if (filterName != "Standard")
{
throw PDFParserException(PDFTranslationContext::tr("Unknown security handler."));
throw PDFException(PDFTranslationContext::tr("Unknown security handler."));
}
const int V = getInt(dictionary, "V", true);
@ -260,7 +260,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
// Check V
if (V < 1 || V > 5)
{
throw PDFParserException(PDFTranslationContext::tr("Unsupported version of document encryption (V = %1).").arg(V));
throw PDFException(PDFTranslationContext::tr("Unsupported version of document encryption (V = %1).").arg(V));
}
// Only valid for V == 2 or V == 3, otherwise we set file encryption key length manually
@ -309,7 +309,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
{
if (!object.isDictionary())
{
throw PDFParserException(PDFTranslationContext::tr("Crypt filter is not a dictionary!"));
throw PDFException(PDFTranslationContext::tr("Crypt filter is not a dictionary!"));
}
const PDFDictionary* cryptFilterDictionary = object.getDictionary();
@ -334,7 +334,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
}
else
{
throw PDFParserException(PDFTranslationContext::tr("Unsupported encryption algorithm '%1'.").arg(QString::fromLatin1(CFMName)));
throw PDFException(PDFTranslationContext::tr("Unsupported encryption algorithm '%1'.").arg(QString::fromLatin1(CFMName)));
}
QByteArray authEventName = getName(cryptFilterDictionary, "AuthEvent", false, "DocOpen");
@ -348,7 +348,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
}
else
{
throw PDFParserException(PDFTranslationContext::tr("Unsupported authorization event '%1'.").arg(QString::fromLatin1(authEventName)));
throw PDFException(PDFTranslationContext::tr("Unsupported authorization event '%1'.").arg(QString::fromLatin1(authEventName)));
}
filter.keyLength = getInt(cryptFilterDictionary, "Length", false, Length / 8);
@ -370,7 +370,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
if (it == handler.m_cryptFilters.cend())
{
throw PDFParserException(PDFTranslationContext::tr("Uknown crypt filter '%1'.").arg(QString::fromLatin1(name)));
throw PDFException(PDFTranslationContext::tr("Uknown crypt filter '%1'.").arg(QString::fromLatin1(name)));
}
return it->second;
@ -394,7 +394,7 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
int R = getInt(dictionary, "R", true);
if (R < 2 || R > 6)
{
throw PDFParserException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(R));
throw PDFException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(R));
}
handler.m_R = R;
@ -413,12 +413,12 @@ PDFSecurityHandlerPointer PDFSecurityHandler::createSecurityHandler(const PDFObj
if (result.size() != size)
{
throw PDFParserException(PDFTranslationContext::tr("Expected %1 characters long string in entry '%2'. Provided length is %3.").arg(size).arg(QString::fromLatin1(key)).arg(result.size()));
throw PDFException(PDFTranslationContext::tr("Expected %1 characters long string in entry '%2'. Provided length is %3.").arg(size).arg(QString::fromLatin1(key)).arg(result.size()));
}
}
else
{
throw PDFParserException(PDFTranslationContext::tr("Expected %1 characters long string in entry '%2'.").arg(size).arg(QString::fromLatin1(key)));
throw PDFException(PDFTranslationContext::tr("Expected %1 characters long string in entry '%2'.").arg(size).arg(QString::fromLatin1(key)));
}
return result;
@ -570,24 +570,24 @@ PDFSecurityHandler::AuthorizationResult PDFStandardSecurityHandler::authenticate
// 1) Checks, if bytes 9, 10, 11 are 'a', 'd', 'b'
if (decodedPerms[9] != 'a' || decodedPerms[10] != 'd' || decodedPerms[11] != 'b')
{
throw PDFParserException(PDFTranslationContext::tr("Permissions entry in the Encryption dictionary is invalid."));
throw PDFException(PDFTranslationContext::tr("Permissions entry in the Encryption dictionary is invalid."));
}
// 2) Verify, that bytes 0-3 are valid permissions entry
const uint32_t permissions = qFromLittleEndian(*reinterpret_cast<const uint32_t*>(decodedPerms.data()));
if (permissions != m_permissions)
{
throw PDFParserException(PDFTranslationContext::tr("Security permissions are manipulated. Can't open the document."));
throw PDFException(PDFTranslationContext::tr("Security permissions are manipulated. Can't open the document."));
}
// 3) Verify, that byte 8 is 'T' or 'F' and is equal to EncryptMetadata entry
if (decodedPerms[8] != 'T' && decodedPerms[8] != 'F')
{
throw PDFParserException(PDFTranslationContext::tr("Security permissions are manipulated. Can't open the document."));
throw PDFException(PDFTranslationContext::tr("Security permissions are manipulated. Can't open the document."));
}
if ((decodedPerms[8] == 'T') != m_encryptMetadata)
{
throw PDFParserException(PDFTranslationContext::tr("Security permissions are manipulated. Can't open the document."));
throw PDFException(PDFTranslationContext::tr("Security permissions are manipulated. Can't open the document."));
}
return m_authorizationData.authorizationResult;
@ -774,7 +774,7 @@ QByteArray PDFStandardSecurityHandler::decryptByFilter(const QByteArray& data, c
auto it = m_cryptFilters.find(filterName);
if (it == m_cryptFilters.cend())
{
throw PDFParserException(PDFTranslationContext::tr("Crypt filter '%1' not found.").arg(QString::fromLatin1(filterName)));
throw PDFException(PDFTranslationContext::tr("Crypt filter '%1' not found.").arg(QString::fromLatin1(filterName)));
}
return decryptUsingFilter(data, it->second, reference);
@ -812,7 +812,7 @@ QByteArray PDFStandardSecurityHandler::createFileEncryptionKey(const QByteArray&
const int keyByteLength = m_keyLength / 8;
if (keyByteLength > MD5_DIGEST_LENGTH)
{
throw PDFParserException(PDFTranslationContext::tr("Encryption key length (%1) exceeded maximal value of.").arg(keyByteLength).arg(MD5_DIGEST_LENGTH));
throw PDFException(PDFTranslationContext::tr("Encryption key length (%1) exceeded maximal value of.").arg(keyByteLength).arg(MD5_DIGEST_LENGTH));
}
if (m_R >= 3)
@ -841,7 +841,7 @@ QByteArray PDFStandardSecurityHandler::createFileEncryptionKey(const QByteArray&
default:
{
throw PDFParserException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(m_R));
throw PDFException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(m_R));
}
}
@ -904,7 +904,7 @@ QByteArray PDFStandardSecurityHandler::createEntryValueU_r234(const QByteArray&
default:
{
throw PDFParserException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(m_R));
throw PDFException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(m_R));
}
}
@ -926,7 +926,7 @@ QByteArray PDFStandardSecurityHandler::createUserPasswordFromOwnerPassword(const
const int keyByteLength = m_keyLength / 8;
if (keyByteLength > MD5_DIGEST_LENGTH)
{
throw PDFParserException(PDFTranslationContext::tr("Encryption key length (%1) exceeded maximal value of.").arg(keyByteLength).arg(MD5_DIGEST_LENGTH));
throw PDFException(PDFTranslationContext::tr("Encryption key length (%1) exceeded maximal value of.").arg(keyByteLength).arg(MD5_DIGEST_LENGTH));
}
if (m_R >= 3)
@ -977,7 +977,7 @@ QByteArray PDFStandardSecurityHandler::createUserPasswordFromOwnerPassword(const
default:
{
throw PDFParserException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(m_R));
throw PDFException(PDFTranslationContext::tr("Revision %1 of standard security handler is not supported.").arg(m_R));
}
}