made api calls mostly json-based

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

2 files changed, 69 insertions, 92 deletions

diff --git a/content/fireflix.js b/content/fireflix.js
index 225e21c..283e930 100644
--- a/content/fireflix.js
+++ b/content/fireflix.js
@@ -63,227 +63,215 @@ var fireflix = {
  on_cmd_auth_done: function() {
   this.set_auth_state(this.flickr.token,false);
   var _this = this;
   this.flickr.authorize_1(
    function() {
     _this.flickr.save_token();
     _this.refresh_stuff();
     _this.set_auth_state(_this.flickr.token,false);
     _this.auth_info.value = 
      _this.flickr.user.fullname+' ['+_this.flickr.user.username+']';
    }, function(x,s,c,m) {
     _this.set_auth_state(_this.flickr.token,false); /* XXX: no reset token? */
     _this.flickr_failure(x,s,c,m);
    }
   );
  },
  on_cmd_auth_unauth: function() {
   this.flickr.reset_token();
   this.set_auth_state(false,false);
  },
 
  refresh_sets: function() { this.photosets.refresh_sets(); },
  refresh_stuff: function() {
   this.refresh_sets();
   this.refresh_user_tags();
  },
 
  /* photoset treeview */
  photoset: {
   photos: new Array(),
   fireflix: null,
   init: function(f) {
    this.fireflix = f;
    pull_elements(this,document,[ 'set_photo', 'set_photo_props' ]);
    document.getElementById('setphotos').view = this;
   },
   rowCount: 0,
   getCellText: function(r,c) {
    var p = this.photos[r];
    if(c.id=='sp_title') return p.title;
    if(c.id=='sp_taken') return p.datetaken;
    if(c.id=='sp_upload') {
     var du = new Date(p.dateupload*1000);
     var rv = du.getFullYear()+'-'+(du.getMonth()+1)+'-'+du.getDate()
      +' '+
      du.getHours()+':'+du.getMinutes()+':'+du.getSeconds();
     return rv.replace(/(\D)(\d)(\D)/,'$10$2$3');
    }
    return c.id;
   },
   setTree: function(t) { this.tree = t },
   isContainer: function(r) { return false; },
   isSeparator: function(r) { return false; },
   isSorted: function(r) { return false; },
   getLevel: function(r) { return 0; },
   getImageSrc: function(r,c) { return null },
   getRowProperties: function(r,p) {},
   getCellProperties: function(cid,cel,p) {},
   getColumnProperties: function(cid,cel,p) { },
   cycleHeader: function(cid,e) { },
   getParentIndex: function(r) { return -1; },
   drop: function(r,o) { },
   canDropBeforeAfter: function(r,b) { return false },
 
-  importXPR: function(xp) {
+  import_json: function(jp) {
    this.tree.beginUpdateBatch();
    this.photos = new Array();
-   var n; while(n=xp.iterateNext()) {
-    this.photos.push(new Photo(n));
-   }
-   this.rowCount = this.photos.length;
+   for(var i in jp) this.photos.push(new Photo(jp[i]));
+   this.rowCount =this.photos.length;
    this.tree.endUpdateBatch();
    this.selection.clearSelection();
   },
   load_photos: function(psid) {
-   var _this = this;
-   this.fireflix.flickr.api_call(
+   var that = this;
+   this.fireflix.flickr.api_call_json(
     {
      method: 'flickr.photosets.getPhotos',
      auth_token: 'default',
      photoset_id: psid,
      extras: 'license,date_upload,date_taken,owner_name,icon_server,original_format,last_update'
-    }, function(xr) {
-     var x = xr.responseXML;
-     var xp = x.evaluate(
-      '/rsp/photoset/photo', x, null,
-      XPathResult.ORDERED_NODE_ITERATOR_TYPE, null );
-     _this.importXPR(xp);
+    }, function(x,j) {
+     that.import_json(j.photoset.photo);
     }, function(x,s,c,m) {
-     _this.fireflix.flickr_failure(x,s,c,m);
+     that.fireflix.flickr_failure(x,s,c,m);
     }
    );
   },
   on_select: function() {
    if(this.selection.count==1) {
     var p = this.photos[this.selection.currentIndex];
     this.set_photo.src =
      this.fireflix.flickr.get_photo_url(p.server,p.id,p.secret,'t');
     this.set_photo_props.hidden = false;
    }else{
     this.set_photo_props.hidden = true;
    }
   },
   on_cmd_open: function(ev) {
    if(this.selection.currentIndex<0) return;
    var p = this.photos[this.selection.currentIndex];
    if(!p.id) return;
    this.fireflix.openTab(this.fireflix.flickr.make_photo_url(p,'p'));
   }
  },
 
  /* photosets treeview */
  photosets: {
   sets: new Array(),
   fireflix: null,
   init: function(f) {
    this.fireflix = f;
    document.getElementById('setslist').view = this;
   },
   rowCount: 0,
   getCellText: function(r,c) {
    var s = this.sets[r];
    if(c.id=='sl_name') return s.title;
    if(c.id=='sl_photos') return s.photos;
    return c.id;
   },
   setTree: function(t) { this.tree = t },
   isContainer: function(r) { return false; },
   isSeparator: function(r) { return false; },
   isSorted: function() { return false; },
   getLevel: function(r) { return 0; },
   getImageSrc: function(r,c) { return null },
   getRowProperties: function(r,p) {},
   getCellProperties: function(cid,cel,p) { },
   getColumnProperties: function(cid,cel,p) { },
   cycleHeader: function(cid,e) { },
   getParentIndex: function(r) { return -1; },
   drop: function(r,o) { },
   canDropBeforeAfter: function(r,b) { return false },
 
-  importXPR: function(xp) {
+  import_json: function(j) {
    this.tree.beginUpdateBatch();
    this.sets = new Array();
-   var n; while(n=xp.iterateNext()) {
-    this.sets.push(new Photoset(n));
-   }
+   for(var i in j) this.sets.push(new Photoset(j[i]));
    this.rowCount = this.sets.length;
    this.tree.endUpdateBatch();
   },
   refresh_sets: function() {
-   var _this = this;
-   this.fireflix.flickr.api_call(
+   var that = this;
+   this.fireflix.flickr.api_call_json(
     {
      method: 'flickr.photosets.getList',
      auth_token: 'default'
-    }, function(xr) {
-     var x = xr.responseXML;
-     var xp = x.evaluate(
-      '/rsp/photosets/photoset', x, null,
-      XPathResult.ORDERED_NODE_ITERATOR_TYPE, null );
-     _this.importXPR(xp);
+    }, function(x,j) {
+     that.import_json(j.photosets.photoset);
     }, function(x,s,c,m) {
-     _this.fireflix.flickr_failure(x,s,c,m);
+     that.fireflix.flickr_failure(x,s,c,m);
     }
    );
   },
   on_select: function() {
    if(this.selection.count==1) {
     this.fireflix.cmd_set_props.setAttribute('disabled','false');
     var s = this.sets[this.selection.currentIndex];
     this.fireflix.photoset.load_photos(s.id);
    }else{
     this.fireflix.cmd_set_props.setAttribute('disabled','true');
    }
   },
   on_cmd_open_in_flickr: function(ev) {
    if(this.selection.currentIndex<0) return;
    var p = this.sets[this.selection.currentIndex];
    if(!p.id) return;
    this.fireflix.openTab(this.fireflix.flickr.make_photoset_url(p));
   }
  },
 
  refresh_user_tags: function() {
   var lb = document.getElementById('tagslist');
   var _this = this;
   this.flickr.api_call(
    {
     method: 'flickr.tags.getListUser',
     auth_token: 'default',
    }, function(xr) {
     var x = xr.responseXML;
     var xp = x.evaluate(
      '/rsp/who/tags/tag', x, null,
      XPathResult.ORDERED_NODE_ITERATOR_TYPE, null );
     // TODO: clear list
     var n; while(n=xp.iterateNext()) {
      lb.appendItem(n.firstChild.nodeValue);
     }
    }, function(x,s,c,m) {
     _this.flickr_failure(x,s,c,m);
    }
   );
  },
 
  uploadObserver: {
   fireflix: null,
   init: function(f) {
    this.fireflix = f;
   },
   getSupportedFlavours: function() {
    var rv = new FlavourSet();
    rv.appendFlavour('application/x-moz-file','nsIFile');
    rv.appendFlavour('application/x-moz-url');
    rv.appendFlavour('text/uri-list');
    rv.appendFlavour('text/unicode');
    return rv;
   },
   canHandleMultipleItems: true,
   onDragOver: function(ev,fl,sess) {
    return true;
   },
   onDrop: function(ev,dd,s) {
    var ldf = null;
    for(var i in dd.dataList) {
     var di = dd.dataList[i];
     var dif = di.first;
@@ -726,255 +714,251 @@ var fireflix = {
     if(this.uploads.files[f].photoid)
      pids.push(this.uploads.files[f].photoid);
   }
   var pp = this.uploads.rowCount*2; if(pp>500) pp = 500;
   var _this = this;
   this.flickr.api_call(
    {
     method: 'flickr.photos.search',
     auth_token: 'default',
     extras: 'original_format',
     user_id: 'me',
     per_page: pp
    },
    function(xr) {
     var x = xr.responseXML;
     var rv = '';
     for(var pn in pids) {
      var p = pids[pn];
      var pp = new Photo(xp_node('/rsp/photos/photo[@id='+p+']',x));
      rv += _this.photo_html(pp,uti,utl)+'\n';
     }
     _this.popup_content(rv);
    }, function(x,s,c,m) {
     _this.flickr_failure(x,s,c,m);
    }
   );
  },
 
  /*
   *
   */
  foundphotos: {
   fireflix: null,
   init: function(f) {
    this.fireflix = f;
    pull_elements(this,document,[
     'search_for','search_tags','search_mine',
     'searchresult_props','search_photo',
     'searchresult_title','searchresult_description',
     'search_page','cmd_search_prev_page','cmd_search_next_page'
    ]);
    document.getElementById('searchresults').view = this;
   },
   photos: new Array(),
   rowCount: 0,
   getCellText: function(r,c) {
    var p = this.photos[r];
    if(c.id=='sr_title') return p.title;
    return c.id;
   },
   setTree: function(t) { this.tree = t },
   isContainer: function(r) { return false },
   isSeparator: function(r) { return false },
   isSorted: function(r) { return false },
   getLevel: function(r) { return 0 },
   getImageSrc: function(r,c) { return null },
   getRowProperties: function(r,p) { },
   getCellProperties: function(cid,cel,p) { },
   getColumnProperties: function(cid,cel,p) { },
   cycleHeader: function(cid,e) { },
   getParentIndex: function(r) { return -1 },
   drop: function(r,o) { },
   canDropBeforeAfter: function(r,b) { return false },
 
-  importXPR: function(xp) {
+  import_json: function(jp) {
    this.selection.clearSelection();
-   this.selection.currentIndex = -1;
-   this.searchresult_props.hidden = true;
+   this.selection.currentIndex=-1;
+   this.searchresult_props.hidden=true;
    this.tree.beginUpdateBatch();
    this.photos = new Array();
-   var n; while(n=xp.iterateNext()) {
-    this.photos.push(new Photo(n));
+   for(var i in jp) {
+    this.photos.push(new Photo(jp[i]));
    }
    this.rowCount = this.photos.length;
    this.tree.endUpdateBatch();
   },
   paging: {
    pars: null,
    page: null, pages: null, perpage: null, total: null
   },
   search_photos: function() {
    var pars = {
     method: 'flickr.photos.search',
     auth_token: 'default',
     extras: 'license,date_upload,date_taken,owner_name,icon_server,original_format,last_update,geo'
    };
    if(this.search_mine.checked)
     pars.user_id='me';
    if(this.search_tags.checked) {
     pars.tags=this.search_for.value.split(/ +/).join(',');
    }else{
     pars.text=this.search_for.value;
    }
    this.paging.pars = new Object();
    this.paging.page = null; this.paging.pages = null;
    this.paging.perpage = null; this.paging.total = null;
    for(var p in pars) this.paging.pars[p] = pars[p];
    this.perform_search(pars);
   },
   perform_search: function(p) {
-   var _this = this;
-   this.fireflix.flickr.api_call( p,
-    function(xr) {
-     var x = xr.responseXML;
-     var xp = xp_nodes('/rsp/photos/photo',x);
-     _this.importXPR(xp);
-     _this.tree.ensureRowIsVisible(0);
-     xp = xp_node('/rsp/photos',x);
-     _this.paging.page = parseInt(xp.getAttribute('page'));
-     _this.paging.pages = parseInt(xp.getAttribute('pages'));
-     _this.paging.perpage = parseInt(xp.getAttribute('perpage'));
-     _this.paging.total = parseInt(xp.getAttribute('total'));
-     _this.update_paging();
-     _this.on_select();
+   var that = this;
+   this.fireflix.flickr.api_call_json( p,
+    function(x,j) {
+     that.import_json(j.photos.photo);
+     that.tree.ensureRowIsVisible(0);
+     var pp=j.photos;
+     that.paging.page = pp.page; that.paging.pages = pp.pages;
+     that.paging.perpage = pp.perpage;
+     that.paging.total = pp.total;
+     that.update_paging();
+     that.on_select();
     }, function(x,s,c,m) {
-     _this.fireflix.flickr_failure(x,s,c,m);
+     that.fireflix.flickr_failure(x,s,c,m);
     }
    );
   },
   on_cmd_prev: function(ev) {
    var pars = new Object();
    for(var p in this.paging.pars) pars[p] = this.paging.pars[p];
    pars.page=this.paging.page-1; pars.per_page=this.paging.perpage;
    this.perform_search(pars);
   },
   on_cmd_next: function(ev) {
    var pars = new Object();
    for(var p in this.paging.pars) pars[p] = this.paging.pars[p];
    pars.page=this.paging.page+1; pars.per_page=this.paging.perpage;
    this.perform_search(pars);
   },
   update_paging: function() {
    if(! (this.paging.pars && this.paging.page && this.paging.pages) ) {
     this.search_page.value=''; this.search_page.hidden = true;
     this.cmd_search_prev_page.setAttribute('disabled','true');
     this.cmd_search_next_page.setAttribute('disabled','true');
    }else{
     this.search_page.value=this.fireflix.loc_strings.getFormattedString('search_page',[this.paging.page,this.paging.pages]);
     this.search_page.hidden=false;
     this.cmd_search_prev_page.setAttribute('disabled',(this.paging.page>1)?'false':'true');
     this.cmd_search_next_page.setAttribute('disabled',(this.paging.page<this.paging.pages)?'false':'true');
    }
   },
   render_description_frame: function(content) {
    this.searchresult_description.innerHTML = '';
    if(content) {
     var dp = new DOMParser();
     var pd = dp.parseFromString(
      '<div xmlns="http://www.w3.org/1999/xhtml">'+content+'</div>', 'text/xml' );
     var de = pd.documentElement;
     if(de.tagName=='parsererror')
      this.searchresult_description.innerHTML=this.fireflix.loc_strings.getString('broken_description');
     else
      this.searchresult_description.appendChild(de);
     /* of all linking elements flickr only allows a */
     var as = this.searchresult_description.getElementsByTagName('a');
     for(var a=0;a<as.length;++a)
      as.item(a).setAttribute('target','_blank');
    }
   },
   on_select: function() {
    if(this.selection.currentIndex<0) {
     this.searchresult_props.hidden = true;
    }else{
     var p = this.photos[this.selection.currentIndex];
     if(!p) {
      this.searchresult_props.hidden = true;
     }else{
      this.search_photo.src = this.fireflix.flickr.make_photo_url(p,'t');
      this.searchresult_title.value = p.title;
      this.searchresult_title.tooltipText = p.title;
      this.render_description_frame(null);
      if(p.description==null && p.description==undefined) {
       var pid = p.id;
       var ci = this.selection.currentIndex;
-      var _this = this;
-      this.fireflix.flickr.api_call(
+      var that = this;
+      this.fireflix.flickr.api_call_json(
        {
         method: 'flickr.photos.getInfo',
         auth_token: 'default',
         photo_id: p.id,
         secret: p.secret
-       }, function(xr) {
-        var pp = _this.photos[ci];
-        if(ci==_this.selection.currentIndex && pp.id==pid) {
-         var n = xp_node('/rsp/photo',xr.responseXML);
-         pp.fromNode_(n);
-         _this.render_description_frame(pp.description);
+       }, function(x,j) {
+        var pp = that.photos[ci];
+        if(ci==that.selection.currentIndex && pp.id==pid) {
+         pp.fromJSON_(j.photo);
+         that.render_description_frame(pp.description);
         }
        }, function(x,s,c,m) {
-        _this.fireflix.flickr_failure(x,s,c,m);
+        that.fireflix.flickr_failure(x,s,c,m);
        }
       );
       this.searchresult_props.hidden = false;
      }else{
       this.render_description_frame(p.description);
      }
     }
    }
   },
   on_cmd_open: function(ev) {
    if(this.selection.currentIndex<0) return;
    var p = this.photos[this.selection.currentIndex];
    if(!p.id) return;
    this.fireflix.openTab(this.fireflix.flickr.make_photo_url(p,'p'));
   }
  },
 
  photo_html: function(p,i,l) {
   // TODO: add alt/title when possible
   var rv = 
    '<a href="'+this.flickr.make_photo_url(p,l)+'">' +
    '<img src="'+this.flickr.make_photo_url(p,i)+'" />'+
    '</a>';
   return rv;
  },
  build_html: function(photos,uti,utl) {
   var rv = '';
   for(var i in photos) {
    var p = photos[i];
    rv += this.photo_html(p,uti,utl)+'\n';
   }
   return rv;
  },
 
  popup_content: function(s) {
   window.openDialog(
    "chrome://fireflix/content/generated-content.xul",
    null, "dialog,chrome", this, s );
  },
  copy_to_clipboard: function(s) {
   var ch = Components.classes["@mozilla.org/widget/clipboardhelper;1"]
    .getService(Components.interfaces.nsIClipboardHelper);
   ch.copyString(s); 
  },
  openTab: function(l) {
   var wm = Components.classes['@mozilla.org/appshell/window-mediator;1'].getService(
    Components.interfaces.nsIWindowMediator );
   var bw = wm.getMostRecentWindow('navigator:browser');
   var b = bw.getBrowser();
   var t = b.addTab(l);
   b.selectedTab = t;
  },
 
  build_menus: function() {
   this.append_html_menu(
    document.getElementById('sets_html_menu'),
    'stm_','m_bop','cmdset_sets','cmd_sets_html'
   );
   this.append_html_menu(
    document.getElementById('setphotos_html_menu'),
    'stm_','m_bop','cmdset_setphotos','cmd_setphotos_html'
   );
   this.append_html_menu(
    document.getElementById('uploads_html_menu'),
diff --git a/content/flickr.js b/content/flickr.js
index 545144c..716874b 100644
--- a/content/flickr.js
+++ b/content/flickr.js
@@ -1,142 +1,135 @@
 /*
  * Photoset
  */
 
 function Photoset(s) {
  if(s instanceof Photoset) {
    for(var p in s) this[p]=s[p];
  }else
-  this.fromNode(s);
+  this.fromJSON(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;
+ fromJSON: function(j) {
+  this.id=j.id;
+  this.primary = j.primary;
+  this.secret = j.secret; this.server = j.server;
+  this.photos = j.photos;
+  this.title = j.title._content;
+  this.description = j.description._content;
  }
 };
 
 /*
  * Photo
  */
 function Photo(s) {
  if(s instanceof Photo) {
   for(var p in s) this[p]=s[p];
  }else
-  this.fromNode(s);
+  this.fromJSON(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');
+ fromJSON: function(j) {
+  this.id = j.id; this.secret = j.secret;
+  this.server = j.server;
+  this.title=j.title;
+  this.isprimary = j.isprimary;
+  this.license = j.license;
+  this.dateupload = j.dateupload;
+  this.datetaken=j.datetaken; j.datetakengranularity=j.datetakengranularity;
+  this.ownername=j.ownername;
+  this.iconserver=j.iconserver;
+  this.originalformat=j.originalformat;
+  this.lastupdate=j.lastupdate;
  },
- fromNode_: function(n) {
-  var t;
-  // TODO: @rotation @isfavorite
+ fromJSON_: function(j) {
   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;
+  var t;
+  if((t=j.owner)) {
+   this.owner.nsid=t.nsid;
+   this.owner.username=t.username; this.owner.realname=t.realname;
+   this.owner.location=t.location;
   }
+  if((t=j.description)) this.description=t._content;
+  // TODO: @rotation @isfavorite
   // 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')