Uni/CSI-ES-2324
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[PD1] Error handling project-wide

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This commit is contained in:
Afonso Franco 2024-04-28 22:02:13 +01:00
parent f5b3726673
commit b918211736
Signed by: afonso
SSH key fingerprint: SHA256:aiLbdlPwXKJS5wMnghdtod0SPy8imZjlVvCyUX9DJNk
13 changed files with 364 additions and 245 deletions
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79
Projs/PD1/internal/server/server.go
View file

@ -19,84 +19,111 @@ func clientHandler(connection networking.Connection[protocol.Packet], dataStore
//Check if certificate usage is MSG SERVICE
usage := oidMap["2.5.4.11"]
if usage == "" {
log.Println("User certificate does not have the correct usage")
return
log.Fatalln("User certificate does not have the correct usage")
}
//Get the UID of this user
UID := oidMap["2.5.4.65"]
if UID == "" {
log.Println("User certificate does not specify it's PSEUDONYM")
log.Fatalln("User certificate does not specify it's PSEUDONYM")
}
err := dataStore.storeUserCertIfNotExists(UID, *clientCert)
if err != nil {
log.Fatalln(err)
}
dataStore.storeUserCertIfNotExists(UID, *clientCert)
F:
for {
pac, active := connection.Receive()
if !active {
pac, err := connection.Receive()
if err != nil {
break
}
switch pac.Flag {
case protocol.FlagGetUserCert:
reqUserCert := protocol.UnmarshalGetUserCert(pac.Body)
reqUserCert, err := protocol.UnmarshalGetUserCert(pac.Body)
if err != nil {
log.Fatalln(err)
}
userCertPacket := dataStore.GetUserCertificate(reqUserCert.UID)
if !connection.Send(userCertPacket) {
if err := connection.Send(userCertPacket); err != nil {
log.Fatalln(err)
break F
}
case protocol.FlagGetUnreadMsgsInfo:
getUnreadMsgsInfo := protocol.UnmarshalGetUnreadMsgsInfo(pac.Body)
getUnreadMsgsInfo, err := protocol.UnmarshalGetUnreadMsgsInfo(pac.Body)
if err != nil {
log.Fatalln(err)
}
var messages protocol.Packet
if getUnreadMsgsInfo.Page <= 0 || getUnreadMsgsInfo.PageSize <= 0 {
messages = protocol.NewReportErrorPacket("Page and PageSize need to be >= 1")
} else {
messages = dataStore.GetUnreadMsgsInfo(UID, getUnreadMsgsInfo.Page, getUnreadMsgsInfo.PageSize)
messages, err = dataStore.GetUnreadMsgsInfo(UID, getUnreadMsgsInfo.Page, getUnreadMsgsInfo.PageSize)
if err != nil {
log.Fatalln(err)
}
}
if !connection.Send(messages) {
break F
if err := connection.Send(messages); err != nil {
log.Fatalln(err)
}
case protocol.FlagGetMsg:
reqMsg := protocol.UnmarshalGetMsg(pac.Body)
reqMsg, err := protocol.UnmarshalGetMsg(pac.Body)
if err != nil {
log.Fatalln(err)
}
var message protocol.Packet
if reqMsg.Num <= 0 {
message = protocol.NewReportErrorPacket("Message NUM needs to be >= 1")
} else {
message = dataStore.GetMessage(UID, reqMsg.Num)
}
if !connection.Send(message) {
if err := connection.Send(message); err != nil {
log.Fatalln(err)
break F
}
dataStore.MarkMessageInQueueAsRead(UID, reqMsg.Num)
case protocol.FlagSendMsg:
submitMsg := protocol.UnmarshalSendMsg(pac.Body)
submitMsg, err := protocol.UnmarshalSendMsg(pac.Body)
if err != nil {
log.Fatalln(err)
}
var answerSendMsgPacket protocol.Packet
if submitMsg.ToUID == UID {
answerSendMsgPacket = protocol.NewReportErrorPacket("Cannot message yourself")
answerSendMsgPacket = protocol.NewReportErrorPacket("Message sender and receiver cannot be the same user")
} else if !dataStore.userExists(submitMsg.ToUID) {
answerSendMsgPacket = protocol.NewReportErrorPacket("Message receiver does not exist in database")
answerSendMsgPacket = protocol.NewReportErrorPacket("Message receiver does not exist")
} else {
answerSendMsgPacket = dataStore.AddMessageToQueue(UID, submitMsg)
}
if !connection.Send(answerSendMsgPacket) {
if err := connection.Send(answerSendMsgPacket); err != nil {
log.Fatalln(err)
break F
}
}
}
}
func Run(port int) {
func Run() {
//Open connection to DB
dataStore := OpenDB()
dataStore, err := OpenDB()
if err != nil {
log.Fatalln(err)
}
defer dataStore.db.Close()
//FIX: Get the server's keystore path instead of hardcoding it
//Read server keystore
password := readStdin("Insert keystore passphrase")
serverKeyStore, err := cryptoUtils.LoadKeyStore("certs/server/server.p12", password)
keystorePassphrase := readStdin("Insert keystore passphrase")
serverKeyStore, err := cryptoUtils.LoadKeyStore("certs/server/server.p12", keystorePassphrase)
if err != nil {
LogFatal(err)
log.Fatalln(err)
}
//Create server listener
server := networking.NewServer[protocol.Packet](&serverKeyStore, port)
server, err := networking.NewServer[protocol.Packet](&serverKeyStore)
if err != nil {
log.Fatalln(err)
}
go server.ListenLoop()
for {