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package goagi |
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import ( |
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"bufio" |
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"net" |
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"os" |
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"sync" |
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) |
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/* |
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NewAGI creates and returns AGI object. |
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Parses AGI arguments and set ready for communication. |
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Usage example: |
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```go |
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import ( |
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"github.com/staskobzar/goagi" |
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"log" |
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) |
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int main() { |
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agi, err := goagi.NewAGI() |
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if err != nil { |
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log.Fatalln(err) |
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} |
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agi.Verbose("New AGI session.") |
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if err := agi.SetMusic("on", "jazz"); err != nil { |
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log.Fatalln(err) |
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} |
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clid, err := agi.GetVariable("CALLERID") |
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if err != nil { |
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log.Fatalln(err) |
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} |
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agi.Verbose("Call from " + clid) |
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if err := agi.SetMusic("off"); err != nil { |
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log.Fatalln(err) |
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} |
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} |
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``` |
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*/ |
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func NewAGI() (*AGI, error) { |
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in := bufio.NewWriter(os.Stdout) |
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out := bufio.NewReader(os.Stdin) |
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agi, err := newInterface(bufio.NewReadWriter(out, in)) |
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if err != nil { |
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return nil, err |
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} |
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return agi, nil |
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} |
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// FastAGI defines sturcture of fast AGI server |
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type FastAGI struct { |
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mu sync.Mutex |
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ch chan *AGI |
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ln net.Listener |
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err error |
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} |
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// Conn returns AGI instance on every Asterisk connection |
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func (fagi *FastAGI) Conn() <-chan *AGI { |
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return fagi.ch |
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} |
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// Err sets error on Fast AGI processing error |
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func (fagi *FastAGI) Err() error { |
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fagi.mu.Lock() |
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err := fagi.err |
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fagi.mu.Unlock() |
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return err |
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} |
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// Close terminates Fast AGI |
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func (fagi *FastAGI) Close() { |
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fagi.ln.Close() |
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close(fagi.ch) |
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} |
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func (fagi *FastAGI) setErr(err error) { |
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fagi.mu.Lock() |
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fagi.err = err |
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fagi.mu.Unlock() |
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} |
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/* |
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NewFastAGI starts listening and serve AGI network calls. |
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Usage example: |
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```go |
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import ( |
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"github.com/staskobzar/goagi" |
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"time" |
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"log" |
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) |
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func main() { |
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// listen, serve and reconnect on fail |
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for { |
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fagi, err := goagi.NewFastAGI(":8000") |
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if err != nil { |
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log.Println("Connection error. Re-try in 3 sec.") |
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<-time.After(time.Second * 3) |
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continue |
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} |
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for agi := range fagi.Conn() { |
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agi.Verbose("New FastAGI session") |
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agi.Answer() |
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if clid, err := agi.GetVariable("CALLERID"); err == nil { |
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log.Printf("CallerID %s\n", clid) |
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ag.Varbose("Call from " + clid) |
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} |
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} |
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if agi.Err() != nil { |
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fmt.Printf("Error: %s\n", agi.Err()) |
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} |
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} |
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} |
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``` |
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*/ |
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func NewFastAGI(listenAddr string) (*FastAGI, error) { |
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ln, err := net.Listen("tcp", listenAddr) |
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if err != nil { |
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return nil, err |
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} |
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ch := make(chan *AGI) |
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fagi := &FastAGI{ln: ln, ch: ch} |
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go func(fastagi *FastAGI) { |
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for { |
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conn, err := ln.Accept() |
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if err != nil { |
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fastagi.setErr(err) |
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return |
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} |
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in := bufio.NewWriter(conn) |
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out := bufio.NewReader(conn) |
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agi, err := newInterface(bufio.NewReadWriter(out, in)) |
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if err != nil { |
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fastagi.setErr(err) |
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return |
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} |
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fastagi.mu.Lock() |
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if fastagi.err == nil { |
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fastagi.ch <- agi |
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} |
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fastagi.mu.Unlock() |
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} |
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}(fagi) |
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return fagi, nil |
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155
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} |
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156
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staskobzar /
goagi
