Added rudimentary entry point for texture libraries.

It returns those project the user has access to that also have defined
a 'texture' node type. It should also only return those projects that
actually have a 'group_texture' node type defined, and have one more
more 'texture' nodes (i.e. projects that don't contain texture nodes
should not be returned).

pillar/application/__init__.py

@@ -199,6 +199,7 @@ from modules import file_storage
 from modules import users
 from modules import nodes
 from modules import latest
+from modules import blender_cloud
 
 app.register_blueprint(encoding, url_prefix='/encoding')
 app.register_blueprint(blender_id, url_prefix='/blender_id')
@@ -206,5 +207,6 @@ projects.setup_app(app, url_prefix='/p')
 local_auth.setup_app(app, url_prefix='/auth')
 file_storage.setup_app(app, url_prefix='/storage')
 latest.setup_app(app, url_prefix='/latest')
+blender_cloud.setup_app(app, url_prefix='/bcloud')
 users.setup_app(app)
 nodes.setup_app(app)

pillar/application/modules/blender_cloud.py

@@ -0,0 +1,26 @@
+from flask import Blueprint, request
+from eve.methods.get import get
+from eve.utils import config as eve_config
+
+from application import utils
+
+TEXTURE_LIBRARY_QUERY_ARGS = {
+    eve_config.QUERY_PROJECTION: utils.dumps({
+        'name': 1, 'url': 1, 'permissions': 1, 'node_types.name': 1,}),
+    eve_config.QUERY_SORT: utils.dumps([('name', 1)]),
+    'max_results': 'null',}
+
+blueprint = Blueprint('blender_cloud', __name__)
+
+
+@blueprint.route('/texture-libraries')
+def texture_libraries():
+    # Use Eve method so that we get filtering on permissions for free.
+    request.args = TEXTURE_LIBRARY_QUERY_ARGS
+    projects = get('projects', {'node_types.name': 'texture'})
+
+    return utils.jsonify(projects)
+
+
+def setup_app(app, url_prefix):
+    app.register_blueprint(blueprint, url_prefix=url_prefix)