Adhoc test component can successfully connect to ejabberd
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parent
b31c29a03d
commit
90865aeb8e
36
component.go
36
component.go
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@ -1,6 +1,8 @@
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package xmpp
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import (
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"crypto/sha1"
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"encoding/hex"
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"encoding/xml"
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"errors"
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"fmt"
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@ -15,17 +17,41 @@ const componentStreamOpen = "<?xml version='1.0'?><stream:stream to='%s' xmlns='
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// using external components. Component specifications are defined
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// in XEP-0114, XEP-0355 and XEP-0356.
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type Component struct {
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Host string
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Secret string
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// TCP level connection
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conn net.Conn
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// read / write
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socketProxy io.ReadWriter
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socketProxy io.ReadWriter // TODO
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decoder *xml.Decoder
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}
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type Handshake struct {
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XMLName xml.Name `xml:"jabber:component:accept handshake"`
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}
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// Handshake generates an authentication token based on StreamID and shared secret.
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func (c *Component) Handshake(streamId string) string {
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// 1. Concatenate the Stream ID received from the server with the shared secret.
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concatStr := streamId + c.Secret
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// 2. Hash the concatenated string according to the SHA1 algorithm, i.e., SHA1( concat (sid, password)).
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h := sha1.New()
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h.Write([]byte(concatStr))
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hash := h.Sum(nil)
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// 3. Ensure that the hash output is in hexadecimal format, not binary or base64.
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// 4. Convert the hash output to all lowercase characters.
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encodedStr := hex.EncodeToString(hash)
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return encodedStr
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}
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// TODO Helper to prepare connection string
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func Open(connStr string) error {
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c := Component{}
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c := Component{Host: connStr, Secret: "mypass"}
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var conn net.Conn
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var err error
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@ -36,7 +62,7 @@ func Open(connStr string) error {
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// TODO send stream open and check for reply
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// Send stream open tag
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componentHost := connStr // TODO Fix me
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componentHost := connStr // TODO Fix me: Extract componentID + secret
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if _, err := fmt.Fprintf(conn, componentStreamOpen, componentHost, NSComponent, NSStream); err != nil {
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fmt.Println("cannot send stream open.")
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return err
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@ -53,7 +79,7 @@ func Open(connStr string) error {
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fmt.Println("StreamID = ", streamId)
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// Authentication
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if _, err := fmt.Fprint(conn, "<handshake>aaee83c26aeeafcbabeabfcbcd50df997e0a2a1e</handshake>"); err != nil {
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if _, err := fmt.Fprintf(conn, "<handshake>%s</handshake>", c.Handshake(streamId)); err != nil {
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fmt.Println("cannot send stream open.")
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return err
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}
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@ -68,6 +94,8 @@ func Open(connStr string) error {
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switch v := val.(type) {
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case *StreamError:
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fmt.Printf("error: %s", v.Error.Local)
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case *Handshake:
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fmt.Println("Component connected")
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default:
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return errors.New("unexpected packet, got " + name.Local + " in " + name.Space)
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}
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18
component_test.go
Normal file
18
component_test.go
Normal file
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@ -0,0 +1,18 @@
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package xmpp
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import "testing"
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func TestHandshake(t *testing.T) {
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c := Component{
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Host: "test.localhost",
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Secret: "mypass",
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}
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streamID := "1263952298440005243"
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expected := "c77e2ef0109fbbc5161e83b51629cd1353495332"
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result := c.Handshake(streamID)
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if result != expected {
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t.Errorf("incorrect handshake calculation '%s' != '%s'", result, expected)
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}
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}
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@ -86,6 +86,8 @@ func next(p *xml.Decoder) (xml.Name, interface{}, error) {
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nv = &ClientPresence{}
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case NSClient + " iq":
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nv = &ClientIQ{}
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case NSComponent + " handshake":
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nv = &Handshake{}
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default:
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return xml.Name{}, nil, errors.New("unexpected XMPP message " +
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se.Name.Space + " <" + se.Name.Local + "/>")
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