Add json-responding api calls

It is somewhat more native to javascript. Or could be, at least.

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 20 insertions, 0 deletions

diff --git a/content/flickr.js b/content/flickr.js
index e09d5f0..545144c 100644
--- a/content/flickr.js
+++ b/content/flickr.js
@@ -1,312 +1,332 @@
 /*
  * Photoset
  */
 
 function Photoset(s) {
  if(s instanceof Photoset) {
    for(var p in s) this[p]=s[p];
  }else
   this.fromNode(s);
 }
 Photoset.prototype = {
  id: null,
  primary: null,
  secret: null,
  server: null,
  photos: null,
  title: null,
  description: null,
  fromNode: function(n) {
   this.id = n.getAttribute('id');
   this.primary = n.getAttribute('primary');
   this.secret = n.getAttribute('secret');
   this.server = n.getAttribute('server');
   this.photos = n.getAttribute('photos');
   this.title = n.getElementsByTagName('title').item(0).firstChild.nodeValue;
   this.description = n.getElementsByTagName('description').item(0).firstChild;
   if(this.description) this.description = this.description.nodeValue;
  }
 };
 
 /*
  * Photo
  */
 function Photo(s) {
  if(s instanceof Photo) {
   for(var p in s) this[p]=s[p];
  }else
   this.fromNode(s);
 }
 Photo.prototype = {
  id: null, secret: null,
  server: null,
  title: null,
  isprimary: null,
  license: null,
  dateupload: null, datetaken: null, datetakengranularity: null,
  ownername: null,
  iconserver: null,
  originalformat: null,
  lastupdate: null,
  fromNode: function(n) {
   this.id = n.getAttribute('id'); this.secret = n.getAttribute('secret');
   this.server = n.getAttribute('server');
   this.title = n.getAttribute('title');
   this.isprimary = n.getAttribute('isprimary');
   this.license = n.getAttribute('license');
   this.dateupload = n.getAttribute('dateupload');
   this.datetaken = n.getAttribute('datetaken'); this.datetakengranularity = n.getAttribute('datetakengranularity');
   this.ownername = n.getAttribute('ownername');
   this.iconserver = n.getAttribute('iconserver');
   this.originalformat = n.getAttribute('originalformat');
   this.lastupdate = n.getAttribute('lastupdate');
  },
  fromNode_: function(n) {
   var t;
   // TODO: @rotation @isfavorite
   this.owner = {};
   t = n.getElementsByTagName('owner').item(0);
   if(t) {
    this.owner.nsid=t.getAttribute('nsid');
    this.owner.username=t.getAttribute('username');
    this.owner.realname=t.getAttribute('realname');
    this.owner.location=t.getAttribute.location;
   }
   t = n.getElementsByTagName('description').item(0);
   if(t && t.firstChild) {
    this.description = t.firstChild.nodeValue;
   }
   // TODO: visibility/@ispublic visibility/@isfriend visibility/@isfamily 
   // TODO: dates/@posted dates/@taken dates/@takengranularity dates/@lastupdate
   // TODO: permissions/@permcomment permsiions/@permaddmeta
   // TODO: editability/@canaddcomment editability/@canaddmeta
   // TODO: comments
   // TODO: notes/note/@id notes/note/@author notes/note/@authorname
   // TODO: notes/note/@x notes/note/@y notes/note/@w notes/note/@h
   // TODO: notes/note
   // TODO: tags/tag/@id tags/tag/@author tags/tag/@raw tags/tag
   // TODO: urls/url/@type urls/url
  }
 };
 
 function Flickr() { }
 Flickr.prototype = {
 
  rest_url: 'http://www.flickr.com/services/rest/',
  auth_url: 'http://flickr.com/services/auth/',
  photo_url: 'http://static.flickr.com/',
  photos_url: 'http://www.flickr.com/photos/',
  upload_url: 'http://www.flickr.com/services/upload/',
  uploader_edit_url: 'http://www.flickr.com/tools/uploader_edit.gne',
 
  api_sig: function(paramstr) {
   return MD5(toutf8(this.api_shs+paramstr));
  },
  api_call_url: function(params,url) {
   params.api_key = this.api_key;
   var pp = new Array();
   for(var p in params) {
    pp.push(p);
   }
   var pstr = '';
   var rv = (url?url:this.rest_url)+'?';
   for(var p in pp.sort()) {
    var pn = pp[p];
    pstr += pn+params[pn];
    rv += pn+'='+params[pn]+'&';
   }
   rv += 'api_sig='+this.api_sig(pstr);
   return rv;
  },
+ api_call_json: function(params,on_success,on_failure) {
+  if(params.auth_token=='default') params.auth_token=this.token;
+  params.format = 'json'; params.nojsoncallback=1;
+  var x = new XMLHttpRequest();
+  x.open("GET",this.api_call_url(params));
+  x.onreadystatechange=function() {
+   if(x.readyState!=4) return false;
+   if(x.status==200) {
+    var rsp=JSON.parse(x.responseText);
+    if(rsp.stat=='ok')
+     on_success && on_success(x,rsp);
+    else
+     on_failure && on_failure(rsp,rsp.stat,rsp.code,rsp.message);
+   }else
+    on_failure && on_failure(x);
+   return true;
+  };
+  x.send(null);
+  return true;
+ },
  api_call: function(params, on_success, on_failure) {
   if(params.auth_token == 'default')
    params.auth_token = this.token;
   var x = new XMLHttpRequest();
   x.open("GET",this.api_call_url(params));
   x.onreadystatechange=function() {
    if(x.readyState!=4) return false;
    if(x.status==200) {
     var stat = x.responseXML.firstChild.getAttribute('stat');
     if(stat=='ok') {
      if(on_success) on_success(x);
     }else{
      var e = x.responseXML.getElementsByTagName('err').item(0);
      var ecode = e.getAttribute('code');
      var emsg = e.getAttribute('msg');
      dump(params.method+' failed: '+ecode+' '+emsg+'\n');
      if(on_failure) on_failure(x,stat,ecode,emsg);
     }
    }else{
     if(on_failure) on_failure(x);
    }
    return true;
   }
   x.send(null);
   return true;
  },
 
  frob: null,
  authorize_0: function(perms, on_s, on_f) {
   var _this = this;
   this.api_call(
    { method: 'flickr.auth.getFrob' },
    function(x) {
     _this.frob = xp_str('/rsp/frob',x.responseXML);
     var u = _this.api_call_url(
      { frob: _this.frob, perms: perms?perms:'delete' }, _this.auth_url );
     if(on_s) on_s(x,_this.frob,u);
    }, function(x,s,c,m) {
     if(on_f) on_f(x,s,c,m);
    }
   );
  },
  token: null,
  perms: null,
  user: null,
  authorize_1: function(on_s, on_f) {
   var _this = this;
   this.api_call(
    { method: 'flickr.auth.getToken', frob: this.frob },
    function(x) {
     _this.token = xp_str('/rsp/auth/token',x.responseXML);
     _this.perms = xp_str('/rsp/auth/perms',x.responseXML);
     var u = xp_node('/rsp/auth/user',x.responseXML);
     _this.user = {
      nsid: u.getAttribute('nsid'),
      username: u.getAttribute('username'),
      fullname: u.getAttribute('fullname')
     };
     if(on_s) on_s(x);
    }, function(x,s,c,m) {
     if(on_f) on_f(x,s,c,m);
    }
   );
  },
 
  prefs: Components.classes['@mozilla.org/preferences-service;1'].getService(
   Components.interfaces.nsIPrefBranch
  ),
  prefs_root: 'net.klever.kin.flickr',
  save_token: function() {
   // TODO: don't clear when there's nothing to clear or catch exceptions
   if(this.token)
    this.prefs.setCharPref(this.prefs_root+'.auth_token',this.token);
   else
    this.prefs.clearUserPref(this.prefs_root+'.auth_token');
   if(this.perms)
    this.prefs.setCharPref(this.prefs_root+'.auth_perms',this.perms);
   else
    this.prefs.clearUserPref(this.prefs_root+'.auth_perms');
   if(this.user && this.user.nsid!=null && this.user.nsid!=undefined)
    this.prefs.setCharPref(this.prefs_root+'.auth_user.nsid',this.user.nsid);
   else
    this.prefs.clearUserPref(this.prefs_root+'.auth_user.nsid');
   if(this.user && this.user.username!=null && this.user.username!=undefined)
    this.prefs.setCharPref(this.prefs_root+'.auth_user.username',this.user.username);
   else
    this.prefs.clearUserPref(this.prefs_root+'.auth_user.username');
   if(this.user && this.user.fullname!=null && this.user.fullname!=undefined)
    this.prefs.setCharPref(this.prefs_root+'.auth_user.fullname',this.user.fullname);
   else
    this.prefs.clearUserPref(this.prefs_root+'.auth_user.fullname');
  },
  _reset_token: function() {
   this.token = null; this.perms = null; this.user = null;
   return false;
  },
  load_token: function() {
   try {
    if(this.prefs.getPrefType(this.prefs_root+'.auth_token')!=this.prefs.PREF_STRING)
     return this._reset_token();
    this.token = this.prefs.getCharPref(this.prefs_root+'.auth_token');
    if(this.prefs.getPrefType(this.prefs_root+'.auth_perms')!=this.prefs.PREF_STRING)
     return this._reset_token();
    this.perms = this.prefs.getCharPref(this.prefs_root+'.auth_perms');
    if(this.prefs.getPrefType(this.prefs_root+'.auth_user.nsid')!=this.prefs.PREF_STRING)
     return this._reset_token();
    this.user = new Object();
    this.user.nsid = this.prefs.getCharPref(this.prefs_root+'.auth_user.nsid');
    if(this.prefs.getPrefType(this.prefs_root+'.auth_user.username')!=this.prefs.PREF_STRING)
     return this._reset_token();
    this.user.username = this.prefs.getCharPref(this.prefs_root+'.auth_user.username');
    if(this.prefs.getPrefType(this.prefs_root+'.auth_user.fullname')!=this.prefs.PREF_STRING)
     return this._reset_token();
    this.user.fullname = this.prefs.getCharPref(this.prefs_root+'.auth_user.fullname');
   }catch(e) { return this._reset_token(); }
   return true;
  },
  reset_token: function() {
   this._reset_token();
   this.save_token();
  },
 
  get_photo_url: function(ser,id,sec,sfx,ext) {
   var rv = this.photo_url + ser + '/' + id + '_' + sec;
   if(sfx && sfx!='_') rv += '_'+sfx;
   rv += ext?'.'+ext:'.jpg';
   return rv;
  },
  get_image_url: function(o,sfx) {
   return this.get_photo_url(
    o.server,
    (o instanceof Photoset)? o.primary : o.id,
    o.secret,
    sfx,
    (sfx=='o')?o.originalformat:null
   );
  },
  get_photo_page_url: function(p) {
   if(p instanceof Photo) {
    // TODO: track photoset and user owner id from there?
    // The approach below is sheerly wrong.
    var o = this.user.nsid;
    if(p.owner && p.owner.nsid) o = p.owner.nsid;
    var rv = this.photos_url + o +'/' + p.id;
    return rv;
   }else // TODO: take owner into account?
    return this.photos_url + this.user.nsid + '/' + p;
  },
  make_photo_url: function(p,sfx) {
   if(sfx=='p')
    return this.get_photo_page_url(p);
   else
    return this.get_image_url(p,sfx);
  },
  make_photoset_url: function(ps) {
   // TODO: allow for using someone else's photoset?
   return this.photos_url+this.user.nsid+'/sets/'+ps.id;
  },
  make_uploader_edit_url: function(pid) {
   // TODO: handle arrays
   return this.uploader_edit_url+'?ids='+pid;
  },
 
  upload_file: function(f,fa,on_success,on_failure) {
   try {
    var fi = Components.classes["@mozilla.org/file/local;1"]
     .createInstance(Components.interfaces.nsILocalFile);
    fi.initWithPath( f );
    var st = Components.classes["@mozilla.org/network/file-input-stream;1"]
     .createInstance(Components.interfaces.nsIFileInputStream);
    st.init(fi,0x01,00004,null);
    var bis = Components.classes["@mozilla.org/binaryinputstream;1"]
     .createInstance(Components.interfaces.nsIBinaryInputStream);
    bis.setInputStream(st);
 
    // allocate and initialize temp storage string
    var pbs = Components.classes["@mozilla.org/storagestream;1"]
     .createInstance(Components.interfaces.nsIStorageStream);
    pbs.init(1024,10000000,null);
    // create output stream
    var pbos = pbs.getOutputStream(0);
    // and a binaryoutputstream interface
    var pbbos = Components.classes["@mozilla.org/binaryoutputstream;1"]
     .createInstance(Components.interfaces.nsIBinaryOutputStream);
    pbbos.setOutputStream(pbos);
 
    /* create POST body */
    var boundarytoken = 'kadaroloongazaduviaxamma';
    var boundary = '--'+boundarytoken;
    var b = '';
 
    var parms = { api_key: this.api_key, auth_token: this.token };