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2022-11-09 Fred Gleason <fredg@paravelsystems.com>

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* Added an image format check to rddbmgr(8) to prevent it from
	attempting to generate thumbnail images from non-JPEG/PNG images.

Signed-off-by: Fred Gleason <fredg@paravelsystems.com>
This commit is contained in:
Fred Gleason 2022-11-09 12:57:11 -05:00
parent 0c139bf849
commit 3227e340c1
4 changed files with 62 additions and 11 deletions
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3
ChangeLog
View File

@ -23635,3 +23635,6 @@
* Added a file format check to the 'Image Manager' dialog in
rdadmin(1) to ensure that only JPEG or PNG formatted image files can
be imported.
2022-11-09 Fred Gleason <fredg@paravelsystems.com>
* Added an image format check to rddbmgr(8) to prevent it from
attempting to generate thumbnail images from non-JPEG/PNG images.

30
lib/rdconf.cpp
View File

@ -1149,3 +1149,33 @@ QString RDMimeType(const QString &filename,bool *ok)
return ret;
}
QString RDMimeType(const QByteArray &data,bool *ok)
{
QStringList args;
QString ret;
QByteArray ret_data;
args.push_back("--mime-type");
args.push_back("-");
QProcess *proc=new QProcess();
proc->start("/usr/bin/file",args);
proc->waitForStarted();
proc->write(data);
proc->closeWriteChannel();
proc->waitForFinished();
if((proc->exitStatus()!=QProcess::NormalExit)||(proc->exitCode()!=0)) {
*ok=false;
delete proc;
return ret;
}
*ok=true;
ret=QString(proc->readAllStandardOutput()).
split(":",QString::SkipEmptyParts).last().trimmed();
delete proc;
return ret;
}

1
lib/rdconf.h
View File

@ -112,6 +112,7 @@ int RDCheckExitCode(const QString &msg,int exit_code);
int RDCheckExitCode(RDConfig *config,const QString &msg,int exit_code);
int RDCheckReturnCode(const QString &msg,int code,int ok_value);
QString RDMimeType(const QString &filename,bool *ok);
QString RDMimeType(const QByteArray &data,bool *ok);
#endif // RDCONF_H

19
utils/rddbmgr/updateschema.cpp
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@ -19,6 +19,7 @@
//
#include <rdcart.h>
#include <rdconf.h>
#include <rddb.h>
#include <rdescape_string.h>
#include <rdfeed.h>
@ -36,6 +37,7 @@ bool MainObject::UpdateSchema(int cur_schema,int set_schema,QString *err_msg)
QString tablename;
RDCart *cart;
bool length_update_required=false;
bool ok=false;
if(!db_start_datetime.isNull()) {
QDateTime now=QDateTime::currentDateTime();
@ -11293,10 +11295,18 @@ bool MainObject::UpdateSchema(int cur_schema,int set_schema,QString *err_msg)
}
sql=QString("select ")+
"`ID`,"+ // 00
"`DATA` "+ // 01
"`DATA`,"+ // 01
"`FEED_KEY_NAME`," // 02
"`DESCRIPTION` "+ // 03
"from `FEED_IMAGES`";
q=new RDSqlQuery(sql);
while(q->next()) {
QString mimetype=RDMimeType(q->value(1).toByteArray(),&ok);
if(!ok) {
*err_msg=tr("unable to determine image file type");
return false;
}
if((mimetype=="image/jpeg")||(mimetype=="image/png")) {
sql=QString("update `FEED_IMAGES` set ")+
"`DATA_MID_THUMB`="+
RDEscapeBlob(RDIMResizeImage(q->value(1).toByteArray(),
@ -11309,6 +11319,13 @@ bool MainObject::UpdateSchema(int cur_schema,int set_schema,QString *err_msg)
return false;
}
}
else {
fprintf(stderr,"rddbmgr: image %u:\"%s\" in RSS feed \"%s\" is not in JPEG or PNG format, skipping thumbnail generation\n",
q->value(0).toUInt(),
q->value(3).toString().toUtf8().constData(),
q->value(2).toString().toUtf8().constData());
}
}
delete q;
WriteSchemaVersion(++cur_schema);