~hanno-stock/revu/updated-revu-workflow

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# Copyright (c) 2008 Siegfried-Angel Gevatter Pujals <rainct@ubuntu.com>
#
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 
#     * Redistributions of source code must retain the above copyright notice,
#     this list of conditions and the following disclaimer.
# 
#     * Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

from mod_python import util

from config import config, connection
from common import *
from template import parse_template
from users import current_user

def package_data(nickname=None, sid=None):
    
    if nickname:
        condition = "WHERE Users.nickname='%s'" % nickname
    elif sid:
        condition = "WHERE Upload.sid='%s'" % sid
    
    sql = """
        SELECT upid, SourcePackage.name AS name,
            to_char(dateofupload, 'YYYY-MM-DD"T"HH24:MI:SS"Z"') AS date
        FROM Upload 
        INNER JOIN Users 
            ON (Upload.usid=Users.usid) 
        INNER JOIN SourcePackage 
            ON (Upload.sid=SourcePackage.sid) 
        %s
        ORDER by SourcePackage.name;
        """ % condition
    uploads = connection.query(sql).dictresult()
    
    comments = []
    for upload in uploads:
        sql = """
            SELECT cid, text, SourcePackage.name AS package, Comments.upid,
                to_char(dateofcomment, 'YYYY-MM-DD"T"HH24:MI:SS"Z"') AS date,
                Users.nickname
            FROM Comments
            INNER JOIN Upload
                ON (Comments.upid=Upload.upid)
            INNER JOIN SourcePackage 
                ON (Upload.sid=SourcePackage.sid)
            INNER JOIN Users
                ON (Comments.usid=Users.usid)
            WHERE Comments.upid = %s
            ORDER by Comments.dateofcomment DESC
            """ % upload['upid']
        comments.extend(connection.query(sql).dictresult())
    
    return uploads, comments

def user_feed(nickname, requested_url):
    
    (uploads, comments) = package_data(nickname=nickname)
    
    storage = Storage()
    storage.feed_name = 'Personal feed for %s' % nickname
    storage.feed_id = 'user,' + nickname
    storage.requested_url = requested_url
    storage.uploads = uploads
    storage.comments = comments
    
    return parse_template('feeds/packages.xml', c=storage)

def package_feed(package_names, requested_url):
    
    uploads = []
    comments = []
    
    for package in package_names:
        sid_result = connection.query("SELECT sid FROM SourcePackage WHERE \
            name='%s'" % package).getresult()
        if not sid_result:
            config.get_request().content_type = 'text/html'
            return 'Package "%s" is not on REVU.' % package
        sid = sid_result[0]
    
        (current_uploads, current_comments) = package_data(sid=sid)
        uploads.extend(current_uploads)
        comments.extend(current_comments)
    
    if len(package_names) == 1:
        feed_name = 'Feed for package %s' % package_names[0]
    else:
        feed_name = 'Feed for packages: %s' % ', '.join(package_names)
    
    storage = Storage()
    storage.feed_name = feed_name
    storage.feed_id = 'package,' + package
    storage.requested_url = requested_url
    storage.uploads = uploads
    storage.comments = comments
    
    return parse_template('feeds/packages.xml', c=storage)

def error(message):
    req.content_type = 'text/html'
    return error

def index(req):
    """ index(req) -> str
    
    Called by default from Apache.
    
    """
    
    config.set_request(req)
    req.content_type = 'application/atom+xml'
    requested_url = 'http://' + req.hostname + req.unparsed_uri
    fs = util.FieldStorage(req)
    
    if fs.has_key('user'):
        return user_feed(sanitize_username(fs['user']), requested_url)
    elif fs.has_key('package'):
        packages = [sanitize_packagename(name) for name in \
            fs['package'].split(',')]
        return package_feed(packages, requested_url)
    else:
        req.content_type = 'text/html'
        return 'No valid argument. <a href="./">Back.</a>'