mirror of
https://github.com/renorris/openfsd
synced 2026-03-22 23:05:36 +08:00
57d54d6705
Changes:
- Implement bootstrapping library for managing several concurrent internal services
- Refactor concurrency model for connections/logical clients and their associated I/O
- Refactor server context singleton
- Refactor error handling
- Most errors are now gracefully sent to the FSD client directly encoded as an $ER packet,
enhancing visibility and debugging
- Most errors are now rightfully treated as non-fatal
- Refactor package/dependency graph
- Refactor calling conventions/interfaces for many packages
- Refactor database package
- Refactor post office
Features:
- Add VATSIM-esque HTTP/JSON "data feed"
- Add ephemeral in-memory database option
- Add user management REST API
- Add improved web interface
- Add MySQL support (drop SQLite support)
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
package protocol
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import (
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"fmt"
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"strings"
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)
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type ClientQueryPDU struct {
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From string `validate:"required,alphanum,max=16"`
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To string `validate:"required,max=7"`
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QueryType string `validate:"required,ascii,min=2,max=16"`
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Payload string `validate:""`
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}
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func (p *ClientQueryPDU) Serialize() string {
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if p.Payload == "" {
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return fmt.Sprintf("$CQ%s:%s:%s%s",
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p.From, p.To, p.QueryType, PacketDelimiter)
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} else {
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return fmt.Sprintf("$CQ%s:%s:%s:%s%s",
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p.From, p.To, p.QueryType, p.Payload, PacketDelimiter)
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}
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}
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func (p *ClientQueryPDU) Parse(packet string) error {
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packet = strings.TrimSuffix(packet, PacketDelimiter)
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packet = strings.TrimPrefix(packet, "$CQ")
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// Extract fields
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var fields []string
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if fields = strings.SplitN(packet, Delimiter, 4); len(fields) < 3 {
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return NewGenericFSDError(SyntaxError, "", "invalid parameter count")
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}
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pdu := ClientQueryPDU{
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From: fields[0],
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To: fields[1],
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QueryType: fields[2],
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}
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if len(fields) == 4 {
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pdu.Payload = fields[3]
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}
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if err := V.Struct(&pdu); err != nil {
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if validatorErr := getFSDErrorFromValidatorErrors(err); err != nil {
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return validatorErr
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}
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return err
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}
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switch pdu.QueryType {
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case "ATC", "CAPS", "C?",
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"RN", "SV", "ATIS",
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"IP", "INF", "FP",
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"IPC", "BY", "HI",
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"HLP", "NOHLP", "WH",
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"IT", "HT", "DR",
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"FA", "TA", "BC",
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"SC", "VT", "ACC",
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"NEWINFO", "NEWATIS", "EST",
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"GD":
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default:
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return NewGenericFSDError(SyntaxError, fields[2], "invalid query type")
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}
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// Copy new pdu into receiver
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*p = pdu
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return nil
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}
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