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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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) |
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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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agi *AGI |
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conn net.Conn |
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} |
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// Conn returns AGI instance on every Asterisk connection |
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func (fagi *FastAGI) AGI() *AGI { |
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return fagi.agi |
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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.conn.Close() |
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} |
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// RemoteAddr returns remote connected client host and port as string |
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func (fagi *FastAGI) RemoteAddr() string { |
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return fagi.conn.RemoteAddr().String() |
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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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80
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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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serve := func (fagi *goagi.FastAGI) { |
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agi := fagi.AGI() |
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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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fagi.Close() |
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} |
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// listen, serve and reconnect on fail |
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for { |
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ln, err := net.Listen("tcp", "127.0.0.1:4573") |
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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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chFagi, chErr := goagi.NewFastAGI(ln) |
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Loop: |
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for { |
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select { |
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case fagi := <-chFagi: |
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go serve(fagi) |
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case err :=<-chErr: |
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ln.Close() |
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log.Println(err) |
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break Loop |
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} |
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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(ln net.Listener) (<-chan *FastAGI, <-chan error) { |
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chFagi := make(chan *FastAGI) |
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chErr := make(chan error) |
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127
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go func(chFagi chan *FastAGI, chErr chan error) { |
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defer close(chFagi) |
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defer close(chErr) |
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for { |
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conn, err := ln.Accept() |
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if err != nil { |
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chErr <- err |
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return |
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} |
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136
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137
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in := bufio.NewWriter(conn) |
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138
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out := bufio.NewReader(conn) |
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139
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agi, err := newInterface(bufio.NewReadWriter(out, in)) |
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140
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if err != nil { |
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141
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// invalid input data. skip |
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142
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conn.Close() |
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143
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continue |
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} |
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fagi := &FastAGI{agi: agi, conn: conn} |
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chFagi <- fagi |
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147
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} |
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}(chFagi, chErr) |
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149
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return chFagi, chErr |
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150
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} |
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staskobzar /
goagi
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