adjustPacketLength pads the length of a packet to a multiple of the header length and adjusts first two bytes of the header to the corrected size (may

Build one line of formatted command data.

decompress expands a PRS compressed file

errorFromResponse builds a twirp.Error from a non-200 HTTP response. If the response has a valid serialized Twirp error, then it's returned. If not, t

newDecompressor is a type built to support decompressing a PRS file. The controlByte starts at the first byte, and bitPos starts at 7, indicating we c

newRequest makes an http.Request from a client, adding common headers.

Perform the actual encryption/decryption. The operation is symmetrical, so the same algorithm can be applied for both.

sanitizeBaseURL parses the the baseURL, and adds the "http" scheme if needed. If the URL is unparsable, the baseURL is returned unchaged.

Tell the client to change to some directory within its file tree.

Tell the client to change to one directory above.

transmit writes the contents of data to the TCP connection until the number of bytes written >= length.

twirpErrorFromIntermediary maps HTTP errors from non-twirp sources to twirp errors. The mapping is similar to gRPC: https://github.com/grpc/grpc/blob/

withoutRedirects makes sure that the POST request can not be redirected. The standard library will, by default, redirect requests (including POSTs) if

Decrypt a block of data in place.

Encrypt a block of data in place.

Handle is the main entry point for processing client commands. It's responsible for generally handling all commands from a client as well as sending a

Handshake performs any connection initialization necessary to begin communicating with the client. This likely involves sending a "welcome" command.

Init is called before a Backend is started as a hook for the Backend to perform any necessary initialization before it can accept clients.

NewLogger returns a logger intended to be used for general application logs.

Returns a newly allocated PSOCrypt with randomly generated, appropriately sized keys for encrypting packets over PSOPC connections.

NewShipgateProtobufClient creates a Protobuf client that implements the Shipgate interface. It communicates using Protobuf and can be configured with

NewShipgateServer builds a TwirpServer that can be used as an http.Handler to handle HTTP requests that are routed to the right method in the provided

PermanentlyDeleteCharacter permanently deletes a character record from the database.

SetUpClient performs any initialization on the Client needed to be able to begin the session. Namely, it's the server's responsibility to choose the a

Shutdown gracefully closes all connections to the shipgate, shuts the server down, and closes any external connections.

Start starts the shipgate at the address defined in the config file.

This function starts the default pprof HTTP server that can be accessed via localhost to get runtime information about archon. See https://golang.org/

acceptClient takes a connection and attempts to initiate a "session" by setting up the Client and sending the welcome command. If it succeeds, the gor

Build the list of patch files present in the patch directory to sync with the client. Files are represented in a tree, directories act as nodes (direc

Assign a unique index to each fileEntry in the tree and use those indices to populate the file lookup table.

Call twirp.ServerHooks.RequestReceived if the hook is available

closeConnectionAndRecover is the failsafe that catches any panics, disconnects the client, and removes them from the list regardless of the state of t

Initialize the cipher.

Set up all of the client-facing servers we'll be running.

createSocket opens a TCP socket to listen for client connections on the Address provided to the frontend.

Extract the packet length from the first two bytes of data.

PSO uses the standard Blowfish rounds for P table scheduling.

errFromPanic returns the typed error if the recovered panic is an error, otherwise formats as error.

getCustomHTTPReqHeaders retrieves a copy of any headers that are set in a context through the twirp.WithHTTPRequestHeaders function. If there are no h

Guesses the server type based on the sender of the packet and what ports the packet was sent between. Also returns whether or not this packet was sent

Handle the character select/preview request. For the preview request, this method will either send info about a character given a particular slot in

Performs a create or update/delete depending on whether the user followed the "dressing room" or "recreate" flows (as indicated by a client flag).

The client sent us a checksum for one of the patch files. Compare it to what we have and add it to the list of files to update if there is any discrep

send another chunk of the client's guildcard data.

LoadConfig the player's saved guildcards, build the chunk data, and send the chunk header.

LoadConfig key config and other option data from the database or provide defaults for new accounts.

Once the client has authenticated, send them the list of files to update.

Player selected one of the items on the ship select screen; respond with the IP address and port of the ship server to which the client will connect