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Captures all network exceptions in a new module.

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Adds a BadMessageException so that it can be better traced.
This commit is contained in:
Paulo Rogerio Panhoto 2018-02-27 18:07:03 -03:00
parent 57b804e15a
commit aae366d33c
3 changed files with 82 additions and 69 deletions
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69
TLSharp.Core/Network/Exceptions.cs Normal file
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@ -0,0 +1,69 @@
using System;
namespace TLSharp.Core.Network
{
public class FloodException : Exception
{
public TimeSpan TimeToWait { get; private set; }
internal FloodException(TimeSpan timeToWait)
: base($"Flood prevention. Telegram now requires your program to do requests again only after {timeToWait.TotalSeconds} seconds have passed ({nameof(TimeToWait)} property)." +
" If you think the culprit of this problem may lie in TLSharp's implementation, open a Github issue please.")
{
TimeToWait = timeToWait;
}
}
public class BadMessageException : Exception
{
internal BadMessageException(string description) : base(description)
{
}
}
internal abstract class DataCenterMigrationException : Exception
{
internal int DC { get; private set; }
private const string REPORT_MESSAGE =
" See: https://github.com/sochix/TLSharp#i-get-a-xxxmigrationexception-or-a-migrate_x-error";
protected DataCenterMigrationException(string msg, int dc) : base(msg + REPORT_MESSAGE)
{
DC = dc;
}
}
internal class PhoneMigrationException : DataCenterMigrationException
{
internal PhoneMigrationException(int dc)
: base($"Phone number registered to a different DC: {dc}.", dc)
{
}
}
internal class FileMigrationException : DataCenterMigrationException
{
internal FileMigrationException(int dc)
: base($"File located on a different DC: {dc}.", dc)
{
}
}
internal class UserMigrationException : DataCenterMigrationException
{
internal UserMigrationException(int dc)
: base($"User located on a different DC: {dc}.", dc)
{
}
}
internal class NetworkMigrationException : DataCenterMigrationException
{
internal NetworkMigrationException(int dc)
: base($"Network located on a different DC: {dc}.", dc)
{
}
}
}

81
TLSharp.Core/Network/MtProtoSender.cs
View file

@ -433,30 +433,30 @@ namespace TLSharp.Core.Network
switch (errorCode)
{
case 16:
throw new InvalidOperationException("msg_id too low (most likely, client time is wrong; it would be worthwhile to synchronize it using msg_id notifications and re-send the original message with the “correct” msg_id or wrap it in a container with a new msg_id if the original message had waited too long on the client to be transmitted)");
throw new BadMessageException("msg_id too low (most likely, client time is wrong; it would be worthwhile to synchronize it using msg_id notifications and re-send the original message with the “correct” msg_id or wrap it in a container with a new msg_id if the original message had waited too long on the client to be transmitted)");
case 17:
throw new InvalidOperationException("msg_id too high (similar to the previous case, the client time has to be synchronized, and the message re-sent with the correct msg_id)");
throw new BadMessageException("msg_id too high (similar to the previous case, the client time has to be synchronized, and the message re-sent with the correct msg_id)");
case 18:
throw new InvalidOperationException("incorrect two lower order msg_id bits (the server expects client message msg_id to be divisible by 4)");
throw new BadMessageException("incorrect two lower order msg_id bits (the server expects client message msg_id to be divisible by 4)");
case 19:
throw new InvalidOperationException("container msg_id is the same as msg_id of a previously received message (this must never happen)");
throw new BadMessageException("container msg_id is the same as msg_id of a previously received message (this must never happen)");
case 20:
throw new InvalidOperationException("message too old, and it cannot be verified whether the server has received a message with this msg_id or not");
throw new BadMessageException("message too old, and it cannot be verified whether the server has received a message with this msg_id or not");
case 32:
throw new InvalidOperationException("msg_seqno too low (the server has already received a message with a lower msg_id but with either a higher or an equal and odd seqno)");
throw new BadMessageException("msg_seqno too low (the server has already received a message with a lower msg_id but with either a higher or an equal and odd seqno)");
case 33:
throw new InvalidOperationException(" msg_seqno too high (similarly, there is a message with a higher msg_id but with either a lower or an equal and odd seqno)");
throw new BadMessageException(" msg_seqno too high (similarly, there is a message with a higher msg_id but with either a lower or an equal and odd seqno)");
case 34:
throw new InvalidOperationException("an even msg_seqno expected (irrelevant message), but odd received");
throw new BadMessageException("an even msg_seqno expected (irrelevant message), but odd received");
case 35:
throw new InvalidOperationException("odd msg_seqno expected (relevant message), but even received");
throw new BadMessageException("odd msg_seqno expected (relevant message), but even received");
case 48:
throw new InvalidOperationException("incorrect server salt (in this case, the bad_server_salt response is received with the correct salt, and the message is to be re-sent with it)");
throw new BadMessageException("incorrect server salt (in this case, the bad_server_salt response is received with the correct salt, and the message is to be re-sent with it)");
case 64:
throw new InvalidOperationException("invalid container");
throw new BadMessageException("invalid container");
}
throw new NotImplementedException("This should never happens");
throw new NotImplementedException("This should never happen!");
/*
logger.debug("bad_msg_notification: msgid {0}, seq {1}, errorcode {2}", requestId, requestSequence,
errorCode);
@ -587,61 +587,4 @@ namespace TLSharp.Core.Network
return new MemoryStream(new byte[len], 0, len, true, true);
}
}
public class FloodException : Exception
{
public TimeSpan TimeToWait { get; private set; }
internal FloodException(TimeSpan timeToWait)
: base($"Flood prevention. Telegram now requires your program to do requests again only after {timeToWait.TotalSeconds} seconds have passed ({nameof(TimeToWait)} property)." +
" If you think the culprit of this problem may lie in TLSharp's implementation, open a Github issue please.")
{
TimeToWait = timeToWait;
}
}
internal abstract class DataCenterMigrationException : Exception
{
internal int DC { get; private set; }
private const string REPORT_MESSAGE =
" See: https://github.com/sochix/TLSharp#i-get-a-xxxmigrationexception-or-a-migrate_x-error";
protected DataCenterMigrationException(string msg, int dc) : base (msg + REPORT_MESSAGE)
{
DC = dc;
}
}
internal class PhoneMigrationException : DataCenterMigrationException
{
internal PhoneMigrationException(int dc)
: base ($"Phone number registered to a different DC: {dc}.", dc)
{
}
}
internal class FileMigrationException : DataCenterMigrationException
{
internal FileMigrationException(int dc)
: base ($"File located on a different DC: {dc}.", dc)
{
}
}
internal class UserMigrationException : DataCenterMigrationException
{
internal UserMigrationException(int dc)
: base($"User located on a different DC: {dc}.", dc)
{
}
}
internal class NetworkMigrationException : DataCenterMigrationException
{
internal NetworkMigrationException(int dc)
: base($"Network located on a different DC: {dc}.", dc)
{
}
}
}

1
TLSharp.Core/TLSharp.Core.csproj
View file

@ -72,6 +72,7 @@
<Compile Include="TelegramClient.cs" />
<Compile Include="Utils\Helpers.cs" />
<Compile Include="Network\Sniffer.cs" />
<Compile Include="Network\Exceptions.cs" />
</ItemGroup>
<ItemGroup>
<None Include="packages.config" />