addons/website/models/ir_http.py

   1 # -*- coding: utf-8 -*-
   2 import logging
   3 import re
   4 import traceback
   5
   6 import werkzeug
   7 import werkzeug.routing
   8
   9 import openerp
  10 from openerp.addons.base import ir
  11 from openerp.addons.base.ir import ir_qweb
  12 from openerp.addons.website.models.website import slug
  13 from openerp.http import request
  14 from openerp.osv import orm
  15
  16 logger = logging.getLogger(__name__)
  17
  18 class RequestUID(object):
  19     def __init__(self, **kw):
  20         self.__dict__.update(kw)
  21
  22 class ir_http(orm.AbstractModel):
  23     _inherit = 'ir.http'
  24
  25     rerouting_limit = 10
  26
  27     def _get_converters(self):
  28         return dict(
  29             super(ir_http, self)._get_converters(),
  30             model=ModelConverter,
  31             page=PageConverter,
  32         )
  33
  34     def _dispatch(self):
  35         first_pass = not hasattr(request, 'website')
  36         request.website = None
  37         func = None
  38         try:
  39             func, arguments = self._find_handler()
  40             request.website_enabled = func.routing.get('website', False)
  41         except werkzeug.exceptions.NotFound:
  42             # either we have a language prefixed route, either a real 404
  43             # in all cases, website processes them
  44             request.website_enabled = True
  45
  46         if request.website_enabled:
  47             if func:
  48                 self._authenticate(func.routing['auth'])
  49             else:
  50                 self._auth_method_public()
  51             request.website = request.registry['website'].get_current_website(request.cr, request.uid, context=request.context)
  52             if first_pass:
  53                 request.lang = request.website.default_lang_code
  54             request.context['lang'] = request.lang
  55             request.website.preprocess_request(request)
  56             if not func:
  57                 path = request.httprequest.path.split('/')
  58                 langs = [lg[0] for lg in request.website.get_languages()]
  59                 if path[1] in langs:
  60                     request.lang = request.context['lang'] = path.pop(1)
  61                     path = '/'.join(path) or '/'
  62                     return self.reroute(path)
  63                 return self._handle_exception(code=404)
  64         return super(ir_http, self)._dispatch()
  65
  66     def reroute(self, path):
  67         if not hasattr(request, 'rerouting'):
  68             request.rerouting = [request.httprequest.path]
  69         if path in request.rerouting:
  70             raise Exception("Rerouting loop is forbidden")
  71         request.rerouting.append(path)
  72         if len(request.rerouting) > self.rerouting_limit:
  73             raise Exception("Rerouting limit exceeded")
  74         request.httprequest.environ['PATH_INFO'] = path
  75         # void werkzeug cached_property. TODO: find a proper way to do this
  76         for key in ('path', 'full_path', 'url', 'base_url'):
  77             request.httprequest.__dict__.pop(key, None)
  78
  79         return self._dispatch()
  80
  81     def _postprocess_args(self, arguments):
  82         if hasattr(request, 'rerouting'):
  83             url = request.rerouting[0]
  84         else:
  85             url = request.httprequest.url
  86         original_url = url
  87         for arg in arguments.itervalues():
  88             if isinstance(arg, orm.browse_record) and isinstance(arg._uid, RequestUID):
  89                 placeholder = arg._uid
  90                 arg._uid = request.uid
  91                 try:
  92                     good_slug = slug(arg)
  93                     if str(arg.id) != placeholder.value and placeholder.value != good_slug:
  94                         # TODO: properly recompose the url instead of using replace()
  95                         url = url.replace(placeholder.value, good_slug)
  96                 except KeyError:
  97                     return self._handle_exception(werkzeug.exceptions.NotFound())
  98         if url != original_url:
  99             werkzeug.exceptions.abort(werkzeug.utils.redirect(url))
 100
 101     def _handle_exception(self, exception=None, code=500):
 102         try:
 103             return super(ir_http, self)._handle_exception(exception)
 104         except Exception:
 105             if getattr(request, 'website_enabled', False) and request.website:
 106                 values = dict(
 107                     exception=exception,
 108                     traceback=traceback.format_exc(exception),
 109                 )
 110                 if exception:
 111                     code = getattr(exception, 'code', code)
 112                     if isinstance(exception, ir_qweb.QWebException):
 113                         values.update(qweb_exception=exception)
 114                         if isinstance(exception.qweb.get('cause'), openerp.exceptions.AccessError):
 115                             code = 403
 116                 if code == 500:
 117                     logger.error("500 Internal Server Error:\n\n%s", values['traceback'])
 118                     if 'qweb_exception' in values:
 119                         view = request.registry.get("ir.ui.view")
 120                         views = view._views_get(request.cr, request.uid, exception.qweb['template'], request.context)
 121                         to_reset = [v for v in views if v.model_data_id.noupdate is True]
 122                         values['views'] = to_reset
 123                 elif code == 403:
 124                     logger.warn("403 Forbidden:\n\n%s", values['traceback'])
 125
 126                 values.update(
 127                     status_message=werkzeug.http.HTTP_STATUS_CODES[code],
 128                     status_code=code,
 129                 )
 130
 131                 if not request.uid:
 132                     self._auth_method_public()
 133
 134                 try:
 135                     html = request.website._render('website.%s' % code, values)
 136                 except Exception:
 137                     html = request.website._render('website.http_error', values)
 138                 return werkzeug.wrappers.Response(html, status=code, content_type='text/html;charset=utf-8')
 139
 140             raise
 141
 142 class ModelConverter(ir.ir_http.ModelConverter):
 143     def __init__(self, url_map, model=False):
 144         super(ModelConverter, self).__init__(url_map, model)
 145         self.regex = r'(?:[A-Za-z0-9-_]+?-)?(\d+)(?=$|/)'
 146
 147     def to_url(self, value):
 148         return slug(value)
 149
 150     def to_python(self, value):
 151         m = re.match(self.regex, value)
 152         _uid = RequestUID(value=value, match=m, converter=self)
 153         return request.registry[self.model].browse(
 154             request.cr, _uid, int(m.group(1)), context=request.context)
 155
 156     def generate(self, cr, uid, query=None, context=None):
 157         return request.registry[self.model].name_search(
 158             cr, uid, name=query or '', context=context)
 159
 160 class PageConverter(werkzeug.routing.PathConverter):
 161     """ Only point of this converter is to bundle pages enumeration logic
 162
 163     Sads got: no way to get the view's human-readable name even if one exists
 164     """
 165     def generate(self, cr, uid, query=None, context=None):
 166         View = request.registry['ir.ui.view']
 167         views = View.search_read(
 168             cr, uid, [['page', '=', True]],
 169             fields=[], order='name', context=context)
 170         xids = View.get_external_id(
 171             cr, uid, [view['id'] for view in views], context=context)
 172
 173         for view in views:
 174             xid = xids[view['id']]
 175             if xid and (not query or query.lower() in xid.lower()):
 176                 yield xid