add dongles command

ast.go

@@ -0,0 +1,36 @@
+package main
+
+type Node interface {
+	Begin() int
+	End() int
+	Text() string
+}
+
+type Context struct {
+	Head        Node
+	Templates   []Node
+	Assignments []AsignStmt
+	Objects     []Object
+}
+
+type Template Context
+
+type AsignStmt struct {
+	Left  []Node
+	Equal Node // =
+	Right []Node
+}
+
+type Object struct {
+	Left   []Node
+	Assign Node // =>
+	Right  []Node
+}
+
+type File struct {
+	Comments    []Node
+	Contextx    []Context
+	Assignments []AsignStmt
+	Objects     []Object
+	Templates   []Template
+}

commands.go

@@ -0,0 +1,148 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/urfave/cli"
+)
+
+type DongleConfig map[string]struct {
+	IMEI string `json:"imei"`
+	IMSI string `json:"imsi"`
+}
+
+func ToAST(c DongleConfig) *Ast {
+	a := &Ast{}
+	for k, v := range c {
+		s := &NodeSection{name: k}
+		s.values = append(s.values, &nodeIdent{
+			key:   "imei",
+			value: v.IMEI,
+		})
+		s.values = append(s.values, &nodeIdent{
+			key:   "imsi",
+			value: v.IMSI,
+		})
+		a.Sections = append(a.Sections, s)
+	}
+	return a
+}
+
+func Dongles(ctx *cli.Context) error {
+	src := ctx.Args().First()
+	var b []byte
+	var err error
+	if src == "stdin" {
+		b, err = ReadFromStdin()
+		if err != nil {
+			return err
+		}
+	} else {
+		if src == "" {
+			return errors.New("either supply a config file or pip stuff to stdin")
+		}
+		b, err = ioutil.ReadFile(src)
+		if err != nil {
+			return err
+		}
+	}
+	c := make(DongleConfig)
+	err = json.Unmarshal(b, &c)
+	if err != nil {
+		return err
+	}
+	a := ToAST(c)
+	o, err := PatchAst(a)
+	if err != nil {
+		return err
+	}
+	var buf bytes.Buffer
+	PrintAst(&buf, o)
+	fmt.Println(&buf)
+	return nil
+}
+
+func PatchAst(dst *Ast) (*Ast, error) {
+	name := filepath.Join(asteriskDir(), "modem.conf")
+	b, err := ioutil.ReadFile(name)
+	if err != nil {
+		return nil, err
+	}
+	p, err := NewParser(bytes.NewReader(b))
+	if err != nil {
+		return nil, err
+	}
+
+	a, err := p.Parse()
+	if err != nil {
+		return nil, err
+	}
+
+	patch := &Ast{}
+	for _, s := range a.Sections {
+		for _, v := range dst.Sections {
+			if v.name == s.name {
+				patch.Sections = append(patch.Sections, v)
+			} else {
+				patch.Sections = append(patch.Sections, s)
+			}
+		}
+	}
+
+	var buf bytes.Buffer
+	PrintAst(&buf, patch)
+	fmt.Println(&buf)
+	o := &Ast{}
+	fmt.Println(len(patch.Sections))
+	for _, v := range patch.Sections {
+		for _, i := range v.values {
+			if i.key == "imei" {
+				if n := byIMEI(dst, i.value); n != nil {
+					if n.name == v.name {
+						continue
+					}
+					o.Sections = append(o.Sections, n)
+					continue
+				}
+			}
+		}
+		o.Sections = append(o.Sections, v)
+	}
+	fmt.Println("HERE")
+	return o, nil
+}
+
+func byIMEI(a *Ast, imei string) *NodeSection {
+	for _, s := range a.Sections {
+		for _, v := range s.values {
+			if v.key == "imei" && v.value == imei {
+				return s
+			}
+		}
+	}
+	return nil
+}
+func bySection(a *Ast, name string) *NodeSection {
+	for _, s := range a.Sections {
+		if s.name == name {
+			return s
+		}
+	}
+	return nil
+}
+
+func asteriskDir() string {
+	return os.Getenv("ASTERISK_CONFIG")
+}
+
+func ReadFromStdin() ([]byte, error) {
+	r := bufio.NewReader(os.Stdin)
+	return r.ReadBytes('\n')
+}

main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	"github.com/urfave/cli"
+)
+
+func main() {
+	app := cli.NewApp()
+	app.Version = "0.4.7"
+	app.Name = "fastc"
+	app.Usage = "configures asterisk using json"
+	app.Commands = []cli.Command{
+		{
+			Name:    "dongles",
+			Aliases: []string{"e"},
+			Usage:   "configures asterisk dongles with json",
+			Action:  Dongles,
+		},
+	}
+	err := app.Run(os.Args)
+	if err != nil {
+		log.Fatalf("fconf: %v", err)
+	}
+}

modem.conf

@@ -0,0 +1,101 @@
+; example configuration file for the 4G modems[general]
+
+
+interval=15                     ; Number of seconds between trying to connect to devices
+
+;------------------------------ JITTER BUFFER CONFIGURATION --------------------------
+;jbenable = yes                 ; Enables the use of a jitterbuffer on the receiving side of a
+                                ; Dongle channel. Defaults to "no". An enabled jitterbuffer will
+                                ; be used only if the sending side can create and the receiving
+                                ; side can not accept jitter. The Dongle channel can't accept jitter,
+                                ; thus an enabled jitterbuffer on the receive Dongle side will always
+                                ; be used if the sending side can create jitter.
+
+;jbforce = no                   ; Forces the use of a jitterbuffer on the receive side of a Dongle
+                                ; channel. Defaults to "no".
+
+;jbmaxsize = 200                ; Max length of the jitterbuffer in milliseconds.
+
+;jbresyncthreshold = 1000       ; Jump in the frame timestamps over which the jitterbuffer is
+                                ; resynchronized. Useful to improve the quality of the voice, with
+                                ; big jumps in/broken timestamps, usually sent from exotic devices
+                                ; and programs. Defaults to 1000.
+
+;jbimpl = fixed                 ; Jitterbuffer implementation, used on the receiving side of a Dongle
+                                ; channel. Two implementations are currently available - "fixed"
+                                ; (with size always equals to jbmaxsize) and "adaptive" (with
+                                ; variable size, actually the new jb of IAX2). Defaults to fixed.
+
+;jbtargetextra = 40             ; This option only affects the jb when 'jbimpl = adaptive' is set.
+                                ; The option represents the number of milliseconds by which the new jitter buffer
+                                ; will pad its size. the default is 40, so without modification, the new
+                                ; jitter buffer will set its size to the jitter value plus 40 milliseconds.
+                                ; increasing this value may help if your network normally has low jitter,
+                                ; but occasionally has spikes.
+
+;jblog = no                     ; Enables jitterbuffer frame logging. Defaults to "no".
+;-----------------------------------------------------------------------------------
+
+[defaults]
+; now you can set here any not required device settings as template
+;   sure you can overwrite in any [device] section this default values
+
+context=from-trunk              ; context for incoming calls
+group=0                         ; calling group
+rxgain=2                        ; increase the incoming volume; may be negative
+txgain=1                        ; increase the outgoint volume; may be negative
+autodeletesms=yes               ; auto delete incoming sms
+resetdongle=yes                 ; reset dongle during initialization with ATZ command
+u2diag=0                        ; set ^U2DIAG parameter on device (0 = disable everything except modem function) ; -1 not use ^U2DIAG command
+usecallingpres=yes              ; use the caller ID presentation or not
+callingpres=allowed_passed_screen ; set caller ID presentation          by default use default network settings
+disablesms=no                   ; disable of SMS reading from device when received
+                                ;  chan_dongle has currently a bug with SMS reception. When a SMS gets in during a
+                                ;  call chan_dongle might crash. Enable this option to disable sms reception.
+                                ;  default = no
+
+language=en                     ; set channel default language
+smsaspdu=yes                    ; if 'yes' send SMS in PDU mode, feature implementation incomplete and we strongly recommend say 'yes'
+mindtmfgap=45                   ; minimal interval from end of previews DTMF from begining of next in ms
+mindtmfduration=80              ; minimal DTMF tone duration in ms
+mindtmfinterval=200             ; minimal interval between ends of DTMF of same digits in ms
+
+callwaiting=no                  ; if 'yes' allow incoming calls waiting; by default use network settings
+                                ; if 'no' waiting calls just ignored
+disable=no                      ; OBSOLETED by initstate: if 'yes' no load this device and just ignore this section
+
+initstate=start                 ; specified initial state of device, must be one of 'stop' 'start' 'remote'
+                                ;   'remove' same as 'disable=yes'
+
+exten=+1234567890               ; exten for start incoming calls, only in case of Subscriber Number not available!, also set to CALLERID(ndid)
+
+dtmf=relax                      ; control of incoming DTMF detection, possible values:
+                                ;   off    - off DTMF tones detection, voice data passed to asterisk unaltered
+                                ;              use this value for gateways or if not use DTMF for AVR or inside dialplan
+                                ;   inband - do DTMF tones detection
+                                ;   relax  - like inband but with relaxdtmf option
+                                ;  default is 'relax' by compatibility reason
+
+; dongle required settings
+;[dongle0]
+;audio=/dev/ttyUSB1             ; tty port for audio connection;        no default value
+;data=/dev/ttyUSB2              ; tty port for AT commands;             no default value
+; or you can omit both audio and data together and use imei=123456789012345 and/or imsi=123456789012345
+;  imei and imsi must contain exactly 15 digits !
+;  imei/imsi discovery is available on Linux only
+;imei=123456789012345
+;imsi=123456789012345
+; if audio and data set together with imei and/or imsi audio and data has precedence
+;   you can use both imei and imsi together in this case exact match by imei and imsi required
+
+[airtel1]
+imei=353220047976425
+;imsi=640021046580298
+
+[tigo1]
+imei=352215045819420
+;imei=354369047238739
+
+[vodacom1] 
+imei=354369047238580
+