addons/website/models/ir_http.py

   1 # -*- coding: utf-8 -*-
   2 import datetime
   3 import hashlib
   4 import logging
   5 import os
   6 import re
   7 import traceback
   8
   9 import werkzeug
  10 import werkzeug.routing
  11 import werkzeug.utils
  12
  13 import openerp
  14 from openerp.addons.base import ir
  15 from openerp.addons.base.ir import ir_qweb
  16 from openerp.addons.website.models.website import slug, url_for, _UNSLUG_RE
  17 from openerp.http import request
  18 from openerp.tools import config
  19 from openerp.osv import orm
  20
  21 logger = logging.getLogger(__name__)
  22
  23 class RequestUID(object):
  24     def __init__(self, **kw):
  25         self.__dict__.update(kw)
  26
  27 class ir_http(orm.AbstractModel):
  28     _inherit = 'ir.http'
  29
  30     rerouting_limit = 10
  31     geo_ip_resolver = None
  32
  33     def _get_converters(self):
  34         return dict(
  35             super(ir_http, self)._get_converters(),
  36             model=ModelConverter,
  37             page=PageConverter,
  38         )
  39
  40     def _auth_method_public(self):
  41         # TODO: select user_id from matching website
  42         if not request.session.uid:
  43             request.uid = self.pool['ir.model.data'].xmlid_to_res_id(request.cr, openerp.SUPERUSER_ID, 'base.public_user')
  44         else:
  45             request.uid = request.session.uid
  46
  47     def _dispatch(self):
  48         first_pass = not hasattr(request, 'website')
  49         request.website = None
  50         func = None
  51         try:
  52             func, arguments = self._find_handler()
  53             request.website_enabled = func.routing.get('website', False)
  54         except werkzeug.exceptions.NotFound:
  55             # either we have a language prefixed route, either a real 404
  56             # in all cases, website processes them
  57             request.website_enabled = True
  58
  59         request.website_multilang = request.website_enabled and func and func.routing.get('multilang', True)
  60
  61         if 'geoip' not in request.session:
  62             record = {}
  63             if self.geo_ip_resolver is None:
  64                 try:
  65                     import GeoIP
  66                     # updated database can be downloaded on MaxMind website
  67                     # http://dev.maxmind.com/geoip/legacy/install/city/
  68                     geofile = config.get('geoip_database', '/usr/share/GeoIP/GeoLiteCity.dat')
  69                     if os.path.exists(geofile):
  70                         self.geo_ip_resolver = GeoIP.open(geofile, GeoIP.GEOIP_STANDARD)
  71                     else:
  72                         self.geo_ip_resolver = False
  73                         logger.warning('GeoIP database file %r does not exists', geofile)
  74                 except ImportError:
  75                     self.geo_ip_resolver = False
  76             if self.geo_ip_resolver and request.httprequest.remote_addr:
  77                 record = self.geo_ip_resolver.record_by_addr(request.httprequest.remote_addr) or {}
  78             request.session['geoip'] = record
  79
  80         if request.website_enabled:
  81             if func:
  82                 self._authenticate(func.routing['auth'])
  83             else:
  84                 self._auth_method_public()
  85             request.redirect = lambda url: werkzeug.utils.redirect(url_for(url))
  86             request.website = request.registry['website'].get_current_website(request.cr, request.uid, context=request.context)
  87             if first_pass:
  88                 request.lang = request.website.default_lang_code
  89             request.context['lang'] = request.lang
  90             if not func:
  91                 path = request.httprequest.path.split('/')
  92                 langs = [lg[0] for lg in request.website.get_languages()]
  93                 if path[1] in langs:
  94                     request.lang = request.context['lang'] = path.pop(1)
  95                     path = '/'.join(path) or '/'
  96                     if request.lang == request.website.default_lang_code:
  97                         # If language is in the url and it is the default language, redirect
  98                         # to url without language so google doesn't see duplicate content
  99                         return request.redirect(path + '?' + request.httprequest.query_string)
 100                     return self.reroute(path)
 101         return super(ir_http, self)._dispatch()
 102
 103     def reroute(self, path):
 104         if not hasattr(request, 'rerouting'):
 105             request.rerouting = [request.httprequest.path]
 106         if path in request.rerouting:
 107             raise Exception("Rerouting loop is forbidden")
 108         request.rerouting.append(path)
 109         if len(request.rerouting) > self.rerouting_limit:
 110             raise Exception("Rerouting limit exceeded")
 111         request.httprequest.environ['PATH_INFO'] = path
 112         # void werkzeug cached_property. TODO: find a proper way to do this
 113         for key in ('path', 'full_path', 'url', 'base_url'):
 114             request.httprequest.__dict__.pop(key, None)
 115
 116         return self._dispatch()
 117
 118     def _postprocess_args(self, arguments, rule):
 119         super(ir_http, self)._postprocess_args(arguments, rule)
 120
 121         for key, val in arguments.items():
 122             # Replace uid placeholder by the current request.uid
 123             if isinstance(val, orm.BaseModel) and isinstance(val._uid, RequestUID):
 124                 arguments[key] = val.sudo(request.uid)
 125
 126         try:
 127             _, path = rule.build(arguments)
 128             assert path is not None
 129         except Exception, e:
 130             return self._handle_exception(e, code=404)
 131
 132         if getattr(request, 'website_multilang', False) and request.httprequest.method in ('GET', 'HEAD'):
 133             generated_path = werkzeug.url_unquote_plus(path)
 134             current_path = werkzeug.url_unquote_plus(request.httprequest.path)
 135             if generated_path != current_path:
 136                 if request.lang != request.website.default_lang_code:
 137                     path = '/' + request.lang + path
 138                 if request.httprequest.query_string:
 139                     path += '?' + request.httprequest.query_string
 140                 return werkzeug.utils.redirect(path)
 141
 142     def _serve_attachment(self):
 143         domain = [('type', '=', 'binary'), ('url', '=', request.httprequest.path)]
 144         attach = self.pool['ir.attachment'].search_read(request.cr, openerp.SUPERUSER_ID, domain, ['__last_update', 'datas', 'mimetype'], context=request.context)
 145         if attach:
 146             wdate = attach[0]['__last_update']
 147             datas = attach[0]['datas']
 148             response = werkzeug.wrappers.Response()
 149             server_format = openerp.tools.misc.DEFAULT_SERVER_DATETIME_FORMAT
 150             try:
 151                 response.last_modified = datetime.datetime.strptime(wdate, server_format + '.%f')
 152             except ValueError:
 153                 # just in case we have a timestamp without microseconds
 154                 response.last_modified = datetime.datetime.strptime(wdate, server_format)
 155
 156             response.set_etag(hashlib.sha1(datas).hexdigest())
 157             response.make_conditional(request.httprequest)
 158
 159             if response.status_code == 304:
 160                 return response
 161
 162             response.mimetype = attach[0]['mimetype'] or 'application/octet-stream'
 163             response.data = datas.decode('base64')
 164             return response
 165
 166     def _handle_exception(self, exception, code=500):
 167         # This is done first as the attachment path may
 168         # not match any HTTP controller, so the request
 169         # may not be website-enabled.
 170         attach = self._serve_attachment()
 171         if attach:
 172             return attach
 173
 174         is_website_request = bool(getattr(request, 'website_enabled', False) and request.website)
 175         if not is_website_request:
 176             # Don't touch non website requests exception handling
 177             return super(ir_http, self)._handle_exception(exception)
 178         else:
 179             try:
 180                 response = super(ir_http, self)._handle_exception(exception)
 181                 if isinstance(response, Exception):
 182                     exception = response
 183                 else:
 184                     # if parent excplicitely returns a plain response, then we don't touch it
 185                     return response
 186             except Exception, e:
 187                 exception = e
 188
 189             values = dict(
 190                 exception=exception,
 191                 traceback=traceback.format_exc(exception),
 192             )
 193             code = getattr(exception, 'code', code)
 194
 195             if isinstance(exception, openerp.exceptions.AccessError):
 196                 code = 403
 197
 198             if isinstance(exception, ir_qweb.QWebException):
 199                 values.update(qweb_exception=exception)
 200                 if isinstance(exception.qweb.get('cause'), openerp.exceptions.AccessError):
 201                     code = 403
 202
 203             if isinstance(exception, werkzeug.exceptions.HTTPException) and code is None:
 204                 # Hand-crafted HTTPException likely coming from abort(),
 205                 # usually for a redirect response -> return it directly
 206                 return exception
 207
 208             if code == 500:
 209                 logger.error("500 Internal Server Error:\n\n%s", values['traceback'])
 210                 if 'qweb_exception' in values:
 211                     view = request.registry.get("ir.ui.view")
 212                     views = view._views_get(request.cr, request.uid, exception.qweb['template'], request.context)
 213                     to_reset = [v for v in views if v.model_data_id.noupdate is True and not v.page]
 214                     values['views'] = to_reset
 215             elif code == 403:
 216                 logger.warn("403 Forbidden:\n\n%s", values['traceback'])
 217
 218             values.update(
 219                 status_message=werkzeug.http.HTTP_STATUS_CODES[code],
 220                 status_code=code,
 221             )
 222
 223             if not request.uid:
 224                 self._auth_method_public()
 225
 226             try:
 227                 html = request.website._render('website.%s' % code, values)
 228             except Exception:
 229                 html = request.website._render('website.http_error', values)
 230             return werkzeug.wrappers.Response(html, status=code, content_type='text/html;charset=utf-8')
 231
 232 class ModelConverter(ir.ir_http.ModelConverter):
 233     def __init__(self, url_map, model=False, domain='[]'):
 234         super(ModelConverter, self).__init__(url_map, model)
 235         self.domain = domain
 236         self.regex = _UNSLUG_RE.pattern
 237
 238     def to_url(self, value):
 239         return slug(value)
 240
 241     def to_python(self, value):
 242         m = re.match(self.regex, value)
 243         _uid = RequestUID(value=value, match=m, converter=self)
 244         return request.registry[self.model].browse(
 245             request.cr, _uid, int(m.group(2)), context=request.context)
 246
 247     def generate(self, cr, uid, query=None, args=None, context=None):
 248         obj = request.registry[self.model]
 249         domain = eval( self.domain, (args or {}).copy())
 250         if query:
 251             domain.append((obj._rec_name, 'ilike', '%'+query+'%'))
 252         for record in obj.search_read(cr, uid, domain=domain, fields=['write_date',obj._rec_name], context=context):
 253             if record.get(obj._rec_name, False):
 254                 yield {'loc': (record['id'], record[obj._rec_name])}
 255
 256 class PageConverter(werkzeug.routing.PathConverter):
 257     """ Only point of this converter is to bundle pages enumeration logic """
 258     def generate(self, cr, uid, query=None, args={}, context=None):
 259         View = request.registry['ir.ui.view']
 260         views = View.search_read(cr, uid, [['page', '=', True]],
 261             fields=['xml_id','priority','write_date'], order='name', context=context)
 262         for view in views:
 263             xid = view['xml_id'].startswith('website.') and view['xml_id'][8:] or view['xml_id']
 264             # the 'page/homepage' url is indexed as '/', avoid aving the same page referenced twice
 265             # when we will have an url mapping mechanism, replace this by a rule: page/homepage --> /
 266             if xid=='homepage': continue
 267             if query and query.lower() not in xid.lower():
 268                 continue
 269             record = {'loc': xid}
 270             if view['priority'] <> 16:
 271                 record['__priority'] = min(round(view['priority'] / 32.0,1), 1)
 272             if view['write_date']:
 273                 record['__lastmod'] = view['write_date'][:10]
 274             yield record