soutade/libgourou
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Remove whole EBX object for PDF when removing DRM

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This commit is contained in:
Grégory Soutadé 2024-03-23 18:34:04 +01:00
parent b0fea2f144
commit c86d9d4346
1 changed files with 7 additions and 3 deletions
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10
src/libgourou.cpp
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@ -1317,6 +1317,7 @@ namespace gourou
std::vector<uPDFParser::Object*> objects = parser.objects(); std::vector<uPDFParser::Object*> objects = parser.objects();
std::vector<uPDFParser::Object*>::iterator it; std::vector<uPDFParser::Object*>::iterator it;
std::vector<uPDFParser::Object*>::reverse_iterator rIt; std::vector<uPDFParser::Object*>::reverse_iterator rIt;
std::vector<uPDFParser::Object*> ebxObjects;
unsigned char decryptedKey[16]; unsigned char decryptedKey[16];
int ebxId; int ebxId;
@ -1327,7 +1328,7 @@ namespace gourou
{ {
EBXHandlerFound = true; EBXHandlerFound = true;
uPDFParser::Object* ebx = *rIt; uPDFParser::Object* ebx = *rIt;
ebxVersion = (uPDFParser::Integer*)(*ebx)["V"]; ebxVersion = (uPDFParser::Integer*)(*ebx)["V"];
if (ebxVersion->value() != 4) if (ebxVersion->value() != 4)
{ {
@ -1338,7 +1339,7 @@ namespace gourou
{ {
EXCEPTION(DRM_ERR_ENCRYPTION_KEY, "No ADEPT_LICENSE found"); EXCEPTION(DRM_ERR_ENCRYPTION_KEY, "No ADEPT_LICENSE found");
} }
uPDFParser::String* licenseObject = (uPDFParser::String*)(*ebx)["ADEPT_LICENSE"]; uPDFParser::String* licenseObject = (uPDFParser::String*)(*ebx)["ADEPT_LICENSE"];
std::string value = licenseObject->value(); std::string value = licenseObject->value();
@ -1375,7 +1376,7 @@ namespace gourou
if (object->objectId() == ebxId) if (object->objectId() == ebxId)
{ {
object->deleteKey("Filter"); ebxObjects.push_back(object);
continue; continue;
} }
@ -1485,6 +1486,9 @@ namespace gourou
} }
} }
for(it = ebxObjects.begin(); it != ebxObjects.end(); it++)
parser.removeObject(*it);
uPDFParser::Object& trailer = parser.getTrailer(); uPDFParser::Object& trailer = parser.getTrailer();
trailer.deleteKey("Encrypt"); trailer.deleteKey("Encrypt");