5 files changed, 362 insertions, 0 deletions
diff --git a/mediagoblin/plugins/piwigo/README.rst b/mediagoblin/plugins/piwigo/README.rst
new file mode 100644
index 00000000..0c71ffbc
--- /dev/null
+++ b/mediagoblin/plugins/piwigo/README.rst
@@ -0,0 +1,23 @@
+===================
+ piwigo api plugin
+===================
+
+.. danger::
+   This plugin does not work.
+   It might make your instance unstable or even insecure.
+   So do not use it, unless you want to help to develop it.
+
+.. warning::
+   You should not depend on this plugin in any way for now.
+   It might even go away without any notice.
+
+Okay, so if you still want to test this plugin,
+add the following to your mediagoblin_local.ini:
+
+.. code-block:: ini
+
+   [plugins]
+   [[mediagoblin.plugins.piwigo]]
+
+Then try to connect using some piwigo client.
+There should be some logging, that might help.
diff --git a/mediagoblin/plugins/piwigo/__init__.py b/mediagoblin/plugins/piwigo/__init__.py
new file mode 100644
index 00000000..73326e9e
--- /dev/null
+++ b/mediagoblin/plugins/piwigo/__init__.py
@@ -0,0 +1,37 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2013 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+
+from mediagoblin.tools import pluginapi
+
+_log = logging.getLogger(__name__)
+
+
+def setup_plugin():
+    _log.info('Setting up piwigo...')
+
+    routes = [
+            ('mediagoblin.plugins.piwigo.wsphp',
+             '/api/piwigo/ws.php',
+             'mediagoblin.plugins.piwigo.views:ws_php'),
+        ]
+
+    pluginapi.register_routes(routes)
+
+hooks = {
+    'setup': setup_plugin
+}
diff --git a/mediagoblin/plugins/piwigo/forms.py b/mediagoblin/plugins/piwigo/forms.py
new file mode 100644
index 00000000..5bb12e62
--- /dev/null
+++ b/mediagoblin/plugins/piwigo/forms.py
@@ -0,0 +1,28 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2013 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import wtforms
+
+
+class AddSimpleForm(wtforms.Form):
+    image = wtforms.FileField()
+    name = wtforms.TextField(
+        validators=[wtforms.validators.Length(min=0, max=500)])
+    comment = wtforms.TextField()
+    # tags = wtforms.FieldList(wtforms.TextField())
+    category = wtforms.IntegerField()
+    level = wtforms.IntegerField()
diff --git a/mediagoblin/plugins/piwigo/tools.py b/mediagoblin/plugins/piwigo/tools.py
new file mode 100644
index 00000000..85d77310
--- /dev/null
+++ b/mediagoblin/plugins/piwigo/tools.py
@@ -0,0 +1,107 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2013 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+
+import lxml.etree as ET
+from werkzeug.exceptions import MethodNotAllowed
+
+from mediagoblin.tools.response import Response
+
+
+_log = logging.getLogger(__name__)
+
+
+class PwgNamedArray(list):
+    def __init__(self, l, item_name, as_attrib=()):
+        self.item_name = item_name
+        self.as_attrib = as_attrib
+        list.__init__(self, l)
+
+    def fill_element_xml(self, el):
+        for it in self:
+            n = ET.SubElement(el, self.item_name)
+            if isinstance(it, dict):
+                _fill_element_dict(n, it, self.as_attrib)
+            else:
+                _fill_element(n, it)
+
+
+def _fill_element_dict(el, data, as_attr=()):
+    for k, v in data.iteritems():
+        if k in as_attr:
+            if not isinstance(v, basestring):
+                v = str(v)
+            el.set(k, v)
+        else:
+            n = ET.SubElement(el, k)
+            _fill_element(n, v)
+
+
+def _fill_element(el, data):
+    if isinstance(data, bool):
+        if data:
+            el.text = "1"
+        else:
+            el.text = "0"
+    elif isinstance(data, basestring):
+        el.text = data
+    elif isinstance(data, int):
+        el.text = str(data)
+    elif isinstance(data, dict):
+        _fill_element_dict(el, data)
+    elif isinstance(data, PwgNamedArray):
+        data.fill_element_xml(el)
+    else:
+        _log.warn("Can't convert to xml: %r", data)
+
+
+def response_xml(result):
+    r = ET.Element("rsp")
+    r.set("stat", "ok")
+    _fill_element(r, result)
+    return Response(ET.tostring(r, encoding="utf-8", xml_declaration=True),
+                    mimetype='text/xml')
+
+
+class CmdTable(object):
+    _cmd_table = {}
+
+    def __init__(self, cmd_name, only_post=False):
+        assert not cmd_name in self._cmd_table
+        self.cmd_name = cmd_name
+        self.only_post = only_post
+
+    def __call__(self, to_be_wrapped):
+        assert not self.cmd_name in self._cmd_table
+        self._cmd_table[self.cmd_name] = (to_be_wrapped, self.only_post)
+        return to_be_wrapped
+
+    @classmethod
+    def find_func(cls, request):
+        if request.method == "GET":
+            cmd_name = request.args.get("method")
+        else:
+            cmd_name = request.form.get("method")
+        entry = cls._cmd_table.get(cmd_name)
+        if not entry:
+            return entry
+        _log.debug("Found method %s", cmd_name)
+        func, only_post = entry
+        if only_post and request.method != "POST":
+            _log.warn("Method %s only allowed for POST", cmd_name)
+            raise MethodNotAllowed()
+        return func
diff --git a/mediagoblin/plugins/piwigo/views.py b/mediagoblin/plugins/piwigo/views.py
new file mode 100644
index 00000000..3dee09cd
--- /dev/null
+++ b/mediagoblin/plugins/piwigo/views.py
@@ -0,0 +1,167 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2013 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+import re
+
+from werkzeug.exceptions import MethodNotAllowed, BadRequest
+from werkzeug.wrappers import BaseResponse
+
+from mediagoblin import mg_globals
+from mediagoblin.meddleware.csrf import csrf_exempt
+from mediagoblin.tools.response import render_404
+from .tools import CmdTable, PwgNamedArray, response_xml
+from .forms import AddSimpleForm
+
+
+_log = logging.getLogger(__name__)
+
+
+@CmdTable("pwg.session.login", True)
+def pwg_login(request):
+    username = request.form.get("username")
+    password = request.form.get("password")
+    _log.info("Login for %r/%r...", username, password)
+    return True
+
+
+@CmdTable("pwg.session.logout")
+def pwg_logout(request):
+    _log.info("Logout")
+    return True
+
+
+@CmdTable("pwg.getVersion")
+def pwg_getversion(request):
+    return "2.5.0 (MediaGoblin)"
+
+
+@CmdTable("pwg.session.getStatus")
+def pwg_session_getStatus(request):
+    return {'username': "fake_user"}
+
+
+@CmdTable("pwg.categories.getList")
+def pwg_categories_getList(request):
+    catlist = ({'id': -29711,
+                'uppercats': "-29711",
+                'name': "All my images"},)
+    return {
+          'categories': PwgNamedArray(
+            catlist,
+            'category',
+            (
+              'id',
+              'url',
+              'nb_images',
+              'total_nb_images',
+              'nb_categories',
+              'date_last',
+              'max_date_last',
+            )
+          )
+        }
+
+
+@CmdTable("pwg.images.exist")
+def pwg_images_exist(request):
+    return {}
+
+
+@CmdTable("pwg.images.addSimple", True)
+def pwg_images_addSimple(request):
+    form = AddSimpleForm(request.form)
+    if not form.validate():
+        _log.error("addSimple: form failed")
+        raise BadRequest()
+    dump = []
+    for f in form:
+        dump.append("%s=%r" % (f.name, f.data))
+    _log.info("addimple: %r %s %r", request.form, " ".join(dump), request.files)
+
+    return {'image_id': 123456, 'url': ''}
+
+                
+md5sum_matcher = re.compile(r"^[0-9a-fA-F]{32}$")
+
+def fetch_md5(request, parm_name, optional_parm=False):
+    val = request.form.get(parm_name)
+    if (val is None) and (not optional_parm):
+        _log.error("Parameter %s missing", parm_name)
+        raise BadRequest("Parameter %s missing" % parm_name)
+    if not md5sum_matcher.match(val):
+        _log.error("Parameter %s=%r has no valid md5 value", parm_name, val)
+        raise BadRequest("Parameter %s is not md5" % parm_name)
+    return val
+
+
+@CmdTable("pwg.images.addChunk", True)
+def pwg_images_addChunk(request):
+    o_sum = fetch_md5(request, 'original_sum')
+    typ = request.form.get('type')
+    pos = request.form.get('position')
+    data = request.form.get('data')
+
+    # Validate params:
+    pos = int(pos)
+    if not typ in ("file", "thumb"):
+        _log.error("type %r not allowed for now", typ)
+        return False
+
+    _log.info("addChunk for %r, type %r, position %d, len: %d",
+              o_sum, typ, pos, len(data))
+    if typ == "thumb":
+        _log.info("addChunk: Ignoring thumb, because we create our own")
+        return True
+
+    return True
+
+
+def possibly_add_cookie(request, response):
+    # TODO: We should only add a *real* cookie, if
+    # authenticated. And if there is no cookie already.
+    if True:
+        response.set_cookie(
+            'pwg_id',
+            "some_fake_for_now",
+            path=request.environ['SCRIPT_NAME'],
+            domain=mg_globals.app_config.get('csrf_cookie_domain'),
+            secure=(request.scheme.lower() == 'https'),
+            httponly=True)
+
+
+@csrf_exempt
+def ws_php(request):
+    if request.method not in ("GET", "POST"):
+        _log.error("Method %r not supported", request.method)
+        raise MethodNotAllowed()
+
+    func = CmdTable.find_func(request)
+    if not func:
+        _log.warn("wsphp: Unhandled %s %r %r", request.method,
+                  request.args, request.form)
+        return render_404(request)
+
+    result = func(request)
+
+    if isinstance(result, BaseResponse):
+        return result
+
+    response = response_xml(result)
+
+    possibly_add_cookie(request, response)
+
+    return response