soutade/libgourou
3
6
Fork 4
Code Issues 1 Pull Requests Packages Releases 4 Activity

Remove whole EBX objects for PDF when removing DRM

Browse Source
This commit is contained in:
Grégory Soutadé 2024-03-19 14:54:59 +01:00
parent 68bf982b6f
commit 86a79cc381
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/libgourou.cpp
View File

@ -1317,6 +1317,7 @@ namespace gourou
std::vector<uPDFParser::Object*> objects = parser.objects();
std::vector<uPDFParser::Object*>::iterator it;
std::vector<uPDFParser::Object*>::reverse_iterator rIt;
std::vector<uPDFParser::Object*> ebxObjects;
unsigned char decryptedKey[16];
int ebxId;
@ -1327,7 +1328,7 @@ namespace gourou
{
EBXHandlerFound = true;
uPDFParser::Object* ebx = *rIt;
ebxVersion = (uPDFParser::Integer*)(*ebx)["V"];
if (ebxVersion->value() != 4)
{
@ -1338,7 +1339,7 @@ namespace gourou
{
EXCEPTION(DRM_ERR_ENCRYPTION_KEY, "No ADEPT_LICENSE found");
}
uPDFParser::String* licenseObject = (uPDFParser::String*)(*ebx)["ADEPT_LICENSE"];
std::string value = licenseObject->value();
@ -1375,7 +1376,7 @@ namespace gourou
if (object->objectId() == ebxId)
{
// object->deleteKey("Filter");
ebxObjects.push_back(object);
continue;
}
@ -1485,6 +1486,9 @@ namespace gourou
}
}
for(it = ebxObjects.begin(); it != ebxObjects.end(); it++)
parser.removeObject(*it);
uPDFParser::Object& trailer = parser.getTrailer();
trailer.deleteKey("Encrypt");