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6ebd5cbbd8
* Add support for editing/deleting messages * Add support for uploading files * Add support for avatars * Use the Rocket.Chat.Go.SDK * Use the rest and streaming api
80 lines
2.4 KiB
Go
80 lines
2.4 KiB
Go
// Package ddp implements the MeteorJS DDP protocol over websockets. Fallback
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// to longpolling is NOT supported (and is not planned on ever being supported
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// by this library). We will try to model the library after `net/http` - right
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// now the library is barebones and doesn't provide the pluggability of http.
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// However, that's the goal for the package eventually.
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package ddp
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import (
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"fmt"
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"log"
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"sync"
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"time"
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)
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// debugLog is true if we should log debugging information about the connection
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var debugLog = true
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// The main file contains common utility types.
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// -------------------------------------------------------------------
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// idManager provides simple incrementing IDs for ddp messages.
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type idManager struct {
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// nextID is the next ID for API calls
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nextID uint64
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// idMutex is a mutex to protect ID updates
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idMutex *sync.Mutex
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}
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// newidManager creates a new instance and sets up resources.
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func newidManager() *idManager {
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return &idManager{idMutex: new(sync.Mutex)}
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}
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// newID issues a new ID for use in calls.
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func (id *idManager) newID() string {
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id.idMutex.Lock()
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next := id.nextID
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id.nextID++
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id.idMutex.Unlock()
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return fmt.Sprintf("%x", next)
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}
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// -------------------------------------------------------------------
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// pingTracker tracks in-flight pings.
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type pingTracker struct {
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handler func(error)
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timeout time.Duration
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timer *time.Timer
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}
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// -------------------------------------------------------------------
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// Call represents an active RPC call.
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type Call struct {
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ID string // The uuid for this method call
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ServiceMethod string // The name of the service and method to call.
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Args interface{} // The argument to the function (*struct).
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Reply interface{} // The reply from the function (*struct).
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Error error // After completion, the error status.
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Done chan *Call // Strobes when call is complete.
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Owner *Client // Client that owns the method call
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}
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// done removes the call from any owners and strobes the done channel with itself.
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func (call *Call) done() {
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delete(call.Owner.calls, call.ID)
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select {
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case call.Done <- call:
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// ok
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default:
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// We don't want to block here. It is the caller's responsibility to make
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// sure the channel has enough buffer space. See comment in Go().
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if debugLog {
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log.Println("rpc: discarding Call reply due to insufficient Done chan capacity")
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}
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}
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}
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