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Limit maximal allowed CSV entries size

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This commit is contained in:
Martin Tůma 2025-02-25 20:23:01 +01:00
parent 17ad10ba23
commit c5f51e935e
2 changed files with 6 additions and 3 deletions
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7
src/common/csv.cpp
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@ -7,15 +7,18 @@ RFC 4180 parser with the following enchancements:
- allows LF line ends in addition to CRLF line ends - allows LF line ends in addition to CRLF line ends
*/ */
bool CSV::readEntry(QByteArrayList &list) bool CSV::readEntry(QByteArrayList &list, int limit)
{ {
int state = 0; int state = 0, len = 0;
char c; char c;
QByteArray field; QByteArray field;
list.clear(); list.clear();
while (_device->getChar(&c)) { while (_device->getChar(&c)) {
if (limit && ++len > limit)
return false;
switch (state) { switch (state) {
case 0: case 0:
if (c == '\r') if (c == '\r')

2
src/common/csv.h
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@ -9,7 +9,7 @@ public:
CSV(QIODevice *device, char delimiter = ',') CSV(QIODevice *device, char delimiter = ',')
: _device(device), _delimiter(delimiter), _line(1) {} : _device(device), _delimiter(delimiter), _line(1) {}
bool readEntry(QByteArrayList &list); bool readEntry(QByteArrayList &list, int limit = 4096);
bool atEnd() const {return _device->atEnd();} bool atEnd() const {return _device->atEnd();}
int line() const {return _line;} int line() const {return _line;}