goa/tools/laxctl.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 25 Aug 2009 13:34:19 +0200
branch3.5
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permissions -rw-r--r--
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"""provides all lax instances management commands into a single utility script
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:organization: Logilab
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:copyright: 2008-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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import sys
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import os
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import os.path as osp
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import time
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import re
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import urllib2
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from urllib import urlencode
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from Cookie import SimpleCookie
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from logilab.common.clcommands import Command, register_commands, main_run
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from cubicweb.common.uilib import remove_html_tags
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from cubicweb.web.views.schema import SKIP_TYPES
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APPLROOT = osp.abspath(osp.join(osp.dirname(osp.abspath(__file__)), '..'))
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def initialize_vregistry(applroot):
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    # apply monkey patches first
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    from cubicweb.goa import do_monkey_patch
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    do_monkey_patch()
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    from cubicweb.goa.goavreg import GAEVregistry
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    from cubicweb.goa.goaconfig import GAEConfiguration
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    #WebConfiguration.ext_resources['JAVASCRIPTS'].append('DATADIR/goa.js')
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    config = GAEConfiguration('toto', applroot)
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    vreg = GAEVregistry(config)
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    vreg.set_schema(config.load_schema())
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    return vreg
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def alistdir(directory):
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    return [osp.join(directory, f) for f in os.listdir(directory)]
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class LaxCommand(Command):
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    """base command class for all lax commands
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    creates vreg, schema and calls
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    """
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    min_args = max_args = 0
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    def run(self, args):
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        self.vreg = initialize_vregistry(APPLROOT)
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        self._run(args)
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class GenerateSchemaCommand(LaxCommand):
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    """generates the schema's png file"""
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    name = 'genschema'
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    def _run(self, args):
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        assert not args, 'no argument expected'
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        from yams import schema2dot
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        schema = self.vreg.schema
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        path = osp.join(APPLROOT, 'data', 'schema.png')
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        schema2dot.schema2dot(schema, path, #size=size,
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                              skiptypes=SKIP_TYPES)
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        print 'generated', path
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        path = osp.join(APPLROOT, 'data', 'metaschema.png')
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        schema2dot.schema2dot(schema, path)
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        print 'generated', path
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class PopulateDataDirCommand(LaxCommand):
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    """populate instance's data directory according to used cubes"""
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    name = 'populatedata'
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    def _run(self, args):
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        assert not args, 'no argument expected'
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        # first clean everything which is a symlink from the data directory
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        datadir = osp.join(APPLROOT, 'data')
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        if not osp.exists(datadir):
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            print 'created data directory'
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            os.mkdir(datadir)
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        for filepath in alistdir(datadir):
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            if osp.islink(filepath):
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                print 'removing', filepath
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                os.remove(filepath)
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        cubes = list(self.vreg.config.cubes()) + ['shared']
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        for templ in cubes:
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            templpath = self.vreg.config.cube_dir(templ)
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            templdatadir = osp.join(templpath, 'data')
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            if not osp.exists(templdatadir):
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                print 'no data provided by', templ
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                continue
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            for resource in os.listdir(templdatadir):
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                if resource == 'external_resources':
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                    continue
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                if not osp.exists(osp.join(datadir, resource)):
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                    print 'symlinked %s from %s' % (resource, templ)
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                    os.symlink(osp.join(templdatadir, resource),
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                               osp.join(datadir, resource))
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class NoRedirectHandler(urllib2.HTTPRedirectHandler):
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    def http_error_302(self, req, fp, code, msg, headers):
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        raise urllib2.HTTPError(req.get_full_url(), code, msg, headers, fp)
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    http_error_301 = http_error_303 = http_error_307 = http_error_302
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class GetSessionIdHandler(urllib2.HTTPRedirectHandler):
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    def __init__(self, config):
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        self.config = config
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    def http_error_303(self, req, fp, code, msg, headers):
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        cookie = SimpleCookie(headers['Set-Cookie'])
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        sessionid = cookie['__session'].value
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        print 'session id', sessionid
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        setattr(self.config, 'cookie', '__session=' + sessionid)
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        return 1 # on exception should be raised
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class URLCommand(LaxCommand):
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    """abstract class for commands doing stuff by accessing the web instance
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    """
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    min_args = max_args = 1
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    arguments = '<site url>'
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    options = (
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        ('cookie',
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         {'short': 'C', 'type' : 'string', 'metavar': 'key=value',
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          'default': None,
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          'help': 'session/authentication cookie.'}),
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        ('user',
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         {'short': 'u', 'type' : 'string', 'metavar': 'login',
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          'default': None,
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          'help': 'user login instead of giving raw cookie string (require lax '
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   135
          'based authentication).'}),
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        ('password',
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         {'short': 'p', 'type' : 'string', 'metavar': 'password',
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          'default': None,
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          'help': 'user password instead of giving raw cookie string (require '
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          'lax based authentication).'}),
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        )
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0
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    def _run(self, args):
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        baseurl = args[0]
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        if not baseurl.startswith('http'):
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            baseurl = 'http://' + baseurl
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        if not baseurl.endswith('/'):
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            baseurl += '/'
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        self.base_url = baseurl
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        if not self.config.cookie and self.config.user:
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            # no cookie specified but a user is. Try to open a session using
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            # given authentication info
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            print 'opening session for', self.config.user
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            opener = urllib2.build_opener(GetSessionIdHandler(self.config))
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            urllib2.install_opener(opener)
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            data = urlencode(dict(__login=self.config.user,
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                                  __password=self.config.password))
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            self.open_url(urllib2.Request(baseurl, data))
0
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        opener = urllib2.build_opener(NoRedirectHandler())
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        urllib2.install_opener(opener)
0
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        self.do_base_url(baseurl)
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   162
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    def build_req(self, url):
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        req = urllib2.Request(url)
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        if self.config.cookie:
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            req.headers['Cookie'] = self.config.cookie
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        return req
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0
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    def open_url(self, req):
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        try:
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            return urllib2.urlopen(req)
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        except urllib2.HTTPError, ex:
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            if ex.code == 302:
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                self.error_302(req, ex)
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            elif ex.code == 500:
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                self.error_500(req, ex)
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            else:
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                raise
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   179
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    def error_302(self, req, ex):
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        print 'authentication required'
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        print ('visit %s?vid=authinfo with your browser to get '
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               'authentication info' % self.base_url)
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        sys.exit(1)
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   185
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    def error_500(self, req, ex):
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        print 'an unexpected error occured on the server'
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   188
        print ('you may get more information by visiting '
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   189
               '%s' % req.get_full_url())
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        sys.exit(1)
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diff changeset
   191
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   192
    def extract_message(self, data):
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   193
        match = re.search(r'<div class="message">(.*?)</div>', data.read(), re.M|re.S)
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   194
        if match:
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   195
            msg = remove_html_tags(match.group(1))
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   196
            print msg
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            return msg
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   198
0
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   199
    def do_base_url(self, baseurl):
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        raise NotImplementedError()
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   201
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0
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class DSInitCommand(URLCommand):
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    """initialize the datastore"""
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    name = 'db-init'
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diff changeset
   206
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    options = URLCommand.options + (
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        ('sleep',
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         {'short': 's', 'type' : 'int', 'metavar': 'nb seconds',
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          'default': None,
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          'help': 'number of seconds to wait between each request to avoid '
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diff changeset
   212
          'going out of quota.'}),
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        )
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   214
0
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   215
    def do_base_url(self, baseurl):
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diff changeset
   216
        req = self.build_req(baseurl + '?vid=contentinit')
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diff changeset
   217
        while True:
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diff changeset
   218
            try:
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                data = self.open_url(req)
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   220
            except urllib2.HTTPError, ex:
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diff changeset
   221
                if ex.code == 303: # redirect
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   222
                    print 'process completed'
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   223
                    break
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diff changeset
   224
                raise
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diff changeset
   225
            msg = self.extract_message(data)
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diff changeset
   226
            if msg and msg.startswith('error: '):
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diff changeset
   227
                print ('you may to cleanup datastore by visiting '
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diff changeset
   228
                       '%s?vid=contentclear (ALL ENTITIES WILL BE DELETED)'
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diff changeset
   229
                       % baseurl)
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diff changeset
   230
                break
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diff changeset
   231
            if self.config.sleep:
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diff changeset
   232
                time.sleep(self.config.sleep)
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diff changeset
   233
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diff changeset
   234
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   235
class CleanSessionsCommand(URLCommand):
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   236
    """cleanup sessions on the server. This command should usually be called
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diff changeset
   237
    regularly by a cron job or equivalent.
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diff changeset
   238
    """
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diff changeset
   239
    name = "cleansessions"
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diff changeset
   240
    def do_base_url(self, baseurl):
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diff changeset
   241
        req = self.build_req(baseurl + '?vid=cleansessions')
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   242
        data = self.open_url(req)
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   243
        self.extract_message(data)
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   244
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   245
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   246
register_commands([GenerateSchemaCommand,
0
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   247
                   PopulateDataDirCommand,
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   248
                   DSInitCommand,
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diff changeset
   249
                   CleanSessionsCommand,
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   250
                   ])
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diff changeset
   251
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def run():
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   253
    main_run(sys.argv[1:])
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diff changeset
   254
0
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   255
if __name__ == '__main__':
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   256
    run()