login might work if node-expat did

diff --git a/README b/README
deleted file mode 100644 (file)
index b22b84b..0000000
--- a/README
+++ /dev/null
@@ -1,10 +0,0 @@
-Setup
-=====
-
-1.     You'll need to save your auth credentials to ~/.libre.fm-cmus.auth:
-
-               unset HISTFILE
-               coffee -e "require('./auth.coffee').save_auth 'USERNAME','PASSWORD'"
-
-       (Substituting your libre.fm username and password of course.) The first
-       line disables history saving in bash, and perhaps other shells.

diff --git a/README.markdown b/README.markdown
new file mode 100644 (file)
index 0000000..b6d6e01
--- /dev/null
+++ b/README.markdown
@@ -0,0 +1,11 @@
+Setup
+=====
+
+1.     You'll need to save your auth credentials to ~/.libre.fm-cmus.auth:
+
+               unset HISTFILE
+               coffee -e "require('./auth.coffee').save_auth 'USERNAME','PASSWORD'"
+
+       (Substituting your libre.fm username and password of course.) The first
+       line disables history saving (in bash, and perhaps other shells) so your
+       password won't get into ~/.bash_history.

diff --git a/auth.coffee b/auth.coffee
index 619e169..833b553 100644 (file)
--- a/auth.coffee
+++ b/auth.coffee
@@ -1,18 +1,81 @@
 fs = require 'fs'
+http = require 'http'
 crypto = require 'crypto'
+expat = require 'node-expat'
+
+auth = {}
 
 md5 = (str) ->
        sum = crypto.createHash 'md5'
        sum.update str
        return sum.digest 'hex'
 
-new_auth_token = (user, pass) -> md5(user + md5(pass))
+new_auth_token = (user, pass) ->
+       token = md5(user + md5(pass))
+       auth.user = user
+       auth.token = token
+       return token
 
+auth_file = "#{process.env.HOME}/.libre.fm-cmus.auth"
 save_auth = (user, pass, callback) ->
        token = new_auth_token(user, pass)
        text = JSON.stringify user: user, token: new_auth_token(user, pass)
-       fs.writeFile "#{process.env.HOME}/.libre.fm-cmus.auth", text, 'utf8', callback
+       fs.writeFile auth_file, text, 'utf8', callback
        return token
 
+# load login credentials from settings file
+load_auth = (callback) ->
+       if auth.user and auth.token
+               callback auth
+               return
+
+       fs.readFile auth_file, 'utf8', (err, data) ->
+               if err
+                       callback err
+               else
+                       callback null, JSON.parse data
+
+# login and get a session key
+login = (callback) ->
+       load_auth (err, auth) ->
+               return callback(err) if err?
+
+               http.get { host: 'alpha.libre.fm', port: 80, path: "/2.0/?method=auth.getmobilesession&username=#{auth.user}&authToken=#{auth.token}"}, (res) ->
+                       if res.statusCode != 200
+                               console.log "login response code: #{res.statusCode}"
+                               callback "login response code: #{res.statusCode}"
+                               return
+
+                       res.setEncoding 'utf8'
+                       body = ''
+                       res.on 'data', (chunk) ->
+                               body += chunk
+                       res.on 'end', ->
+                               parser = new expat.Parser 'UTF-8'
+                               cur_tag = ''
+                               done = false
+                               parser.on 'startElement', (name, attrs) ->
+                                       cur_tag = name
+                               parser.on 'text', (str) ->
+                                       if cur_tag is 'key'
+                                               done = true
+                                               auth.sk = str
+                                               console.log("got key \"#{str}\"")
+                                               callback null, str
+                                       else if cur_tag is 'error'
+                                               done = true
+                                               callback "login failed: #{str}"
+                                       # ignore other stuff in there
+                               unless parser.parse body, true
+                                       done = true
+                                       callback "login server response wouldn't parse as XML."
+                                       console.log "login server sent us bad XML: #{body}"
+
+                               unless done
+                                       callback "Couldn't understand response from login server"
+
+
+
+exports.login = login # fixme remove this from the API and call it automatically
 exports.new_auth_token = new_auth_token
 exports.save_auth = save_auth