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More validation of server responses

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FossilOrigin-Name: 71e1a46c8f9d7dbfa9a5fe55fbdb37778b928491105a4c901e768699617ef090
This commit is contained in:
Jonathan Schleifer 2020-10-03 17:20:34 +00:00
parent c7fc35fb0f
commit c4a1bd7932
1 changed files with 23 additions and 3 deletions
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26
src/MTXClient.m
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@ -98,14 +98,21 @@ validateHomeserver(OFURL *homeserver)
OFString *userID = response[@"user_id"];
OFString *deviceID = response[@"device_id"];
OFString *accessToken = response[@"access_token"];
if (userID == nil || deviceID == nil ||
accessToken == nil) {
if (![userID isKindOfClass: OFString.class] ||
![deviceID isKindOfClass: OFString.class] ||
![accessToken isKindOfClass: OFString.class]) {
block(nil, [OFInvalidServerReplyException exception]);
return;
}
OFString *baseURL =
response[@"well_known"][@"m.homeserver"][@"base_url"];
if (baseURL != nil &&
![baseURL isKindOfClass: OFString.class]) {
block(nil, [OFInvalidServerReplyException exception]);
return;
}
OFURL *realHomeserver;
if (baseURL != nil) {
@try {
@ -218,7 +225,7 @@ validateHomeserver(OFURL *homeserver)
return;
}
if (statusCode != 200 || response[@"joined_rooms"] == nil) {
if (statusCode != 200) {
block(nil, [MTXFetchRoomListFailedException
exceptionWithClient: self
statusCode: statusCode
@ -226,6 +233,19 @@ validateHomeserver(OFURL *homeserver)
return;
}
OFArray<OFString *> *joinedRooms = response[@"joined_rooms"];
if (![joinedRooms isKindOfClass: OFArray.class]) {
block(nil, [OFInvalidServerReplyException exception]);
return;
}
for (OFString *room in joinedRooms) {
if (![room isKindOfClass: OFString.class]) {
block(nil,
[OFInvalidServerReplyException exception]);
return;
}
}
block(response[@"joined_rooms"], nil);
}];