def __init__(self, link):
     self.thing = link
     self.edit_url = promote.promo_edit_url(link)
     self.is_preliminary = False
     campaigns = PromoCampaign._by_link(link._id)
     camps = {}
     fullnames = []
     for campaign in campaigns:
         campaign.imps = 0
         campaign.clicks = 0
         self.is_preliminary |= _is_promo_preliminary(campaign.end_date)
         camps[campaign._fullname] = campaign
         fullnames.append(campaign._fullname)
     click_data = traffic.TargetedClickthroughsByCodename.total_by_codename(
         fullnames)
     for fullname, clicks in click_data:
         camps[fullname].clicks = clicks
     imp_data = traffic.TargetedImpressionsByCodename.total_by_codename(
         fullnames)
     for fullname, imps in imp_data:
         camps[fullname].imps = imps
     self.campaigns = camps.values()
     self.total_clicks = self.total_imps = self.total_spend = 0
     for camp in self.campaigns:
         self.total_clicks += camp.clicks
         self.total_imps += camp.imps
         self.total_spend += camp.bid
         camp.ctr = _clickthrough_rate(camp.imps, camp.clicks)
         camp.cpc = cost_per_click(camp.bid, camp.clicks)
         camp.cpm = cost_per_mille(camp.bid, camp.imps)
     self.total_ctr = _clickthrough_rate(self.total_imps, self.total_clicks)
     self.total_cpc = cost_per_click(self.total_spend, self.total_clicks)
     self.total_cpm = cost_per_mille(self.total_spend, self.total_imps)
     Templated.__init__(self)

 def POST_update_pay(self, form, jquery, link, campaign, customer_id, pay_id,
                     edit, address, creditcard):
     address_modified = not pay_id or edit
     form_has_errors = False
     if address_modified:
         if (form.has_errors(["firstName", "lastName", "company", "address",
                              "city", "state", "zip",
                              "country", "phoneNumber"],
                             errors.BAD_ADDRESS) or
             form.has_errors(["cardNumber", "expirationDate", "cardCode"],
                             errors.BAD_CARD)):
             form_has_errors = True
         elif g.authorizenetapi:
             pay_id = edit_profile(c.user, address, creditcard, pay_id)
         else:
             pay_id = 1
     # if link is in use or finished, don't make a change
     if pay_id and not form_has_errors:
         # valid bid and created or existing bid id.
         # check if already a transaction
         if g.authorizenetapi:
             success, reason = promote.auth_campaign(link, campaign, c.user,
                                                     pay_id)
         else:
             success = True
         if success:
             form.redirect(promote.promo_edit_url(link))
         else:
             form.set_html(".status",
                           reason or
                           _("failed to authenticate card.  sorry."))

    def POST_freebie(self, form, jquery, link, campaign):
        if campaign_has_oversold_error(form, campaign):
            form.set_html(".freebie", "target oversold, can't freebie")
            return

        if promote.is_promo(link) and campaign:
            promote.free_campaign(link, campaign, c.user)
            form.redirect(promote.promo_edit_url(link))

    def POST_update_pay(self, form, jquery, link, campaign, customer_id, pay_id,
                        edit, address, creditcard):
        if not g.authorizenetapi:
            return

        if not link or not campaign or link._id != campaign.link_id:
            return abort(404, 'not found')

        # Check inventory
        if campaign_has_oversold_error(form, campaign):
            return

        # check that start is not so late that authorization hold will expire
        max_start = promote.get_max_startdate()
        if campaign.start_date > max_start:
            msg = _("please change campaign start date to %(date)s or earlier")
            date = format_date(max_start, format="short", locale=c.locale)
            msg %= {'date': date}
            form.set_html(".status", msg)
            return

        # check the campaign start date is still valid (user may have created
        # the campaign a few days ago)
        now = promote.promo_datetime_now()
        min_start = now + timedelta(days=g.min_promote_future)
        if campaign.start_date.date() < min_start.date():
            msg = _("please change campaign start date to %(date)s or later")
            date = format_date(min_start, format="short", locale=c.locale)
            msg %= {'date': date}
            form.set_html(".status", msg)
            return

        address_modified = not pay_id or edit
        if address_modified:
            address_fields = ["firstName", "lastName", "company", "address",
                              "city", "state", "zip", "country", "phoneNumber"]
            card_fields = ["cardNumber", "expirationDate", "cardCode"]

            if (form.has_errors(address_fields, errors.BAD_ADDRESS) or
                    form.has_errors(card_fields, errors.BAD_CARD)):
                return

            pay_id = edit_profile(c.user, address, creditcard, pay_id)

        reason = None
        if pay_id:
            success, reason = promote.auth_campaign(link, campaign, c.user,
                                                    pay_id)

            if success:
                form.redirect(promote.promo_edit_url(link))
                return

        msg = reason or _("failed to authenticate card. sorry.")
        form.set_html(".status", msg)

    def POST_freebie(self, form, jquery, link, campaign):
        if not link or not campaign or link._id != campaign.link_id:
            return abort(404, 'not found')

        if campaign_has_oversold_error(form, campaign):
            form.set_html(".freebie", "target oversold, can't freebie")
            return

        if promote.is_promo(link) and campaign:
            promote.free_campaign(link, campaign, c.user)
            form.redirect(promote.promo_edit_url(link))

    def __init__(self, thing, comments = True, delete = True, report = True):
        # is the current user the author?
        is_author = (c.user_is_loggedin and thing.author and
                     c.user.name == thing.author.name)
        # do we show the report button?
        show_report = not is_author and report
        # do we show the delete button?
        show_delete = is_author and delete and not thing._deleted
        # do we show the distinguish button? among other things,
        # we never want it to appear on link listings -- only
        # comments pages
        show_distinguish = (is_author and thing.can_ban 
                            and getattr(thing, "expand_children", False))

        kw = {}
        if thing.promoted is not None:
            now = datetime.now(g.tz)
            promotable = (thing._date <= now and thing.promote_until > now)
            kw = dict(promo_url = promo_edit_url(thing),
                      promote_bid = thing.promote_bid,
                      promote_status = getattr(thing, "promote_status", 0),
                      user_is_sponsor = c.user_is_sponsor,
                      promotable = promotable,
                      traffic_url = promo_traffic_url(thing), 
                      is_author = thing.is_author)
                      
        PrintableButtons.__init__(self, 'linkbuttons', thing, 
                                  # user existence and preferences
                                  is_loggedin = c.user_is_loggedin,
                                  new_window = c.user.pref_newwindow,
                                  # comment link params
                                  comment_label = thing.comment_label,
                                  commentcls = thing.commentcls,
                                  permalink  = thing.permalink,
                                  # button visibility
                                  saved = thing.saved,
                                  editable = thing.editable, 
                                  hidden = thing.hidden, 
                                  show_delete = show_delete,
                                  show_report = show_report,
                                  show_distinguish = show_distinguish,
                                  show_comments = comments,
                                  # promotion
                                  promoted = thing.promoted,
                                  **kw)

    def POST_edit_promo(self, form, jquery, ip, l, title, url,
                        disable_comments,
                        set_clicks, max_clicks,
                        set_views, max_views,
                        media_height, media_width, media_embed,
                        media_override, domain_override):

        should_ratelimit = False
        if not c.user_is_sponsor:
            set_clicks = False
            set_views = False
            should_ratelimit = True
        if not set_clicks:
            max_clicks = None
        if not set_views:
            max_views = None

        if not should_ratelimit:
            c.errors.remove((errors.RATELIMIT, 'ratelimit'))

        # demangle URL in canonical way
        if url:
            if isinstance(url, (unicode, str)):
                form.set_inputs(url=url)
            elif isinstance(url, tuple) or isinstance(url[0], Link):
                # there's already one or more links with this URL, but
                # we're allowing mutliple submissions, so we really just
                # want the URL
                url = url[0].url

        # users can change the disable_comments on promoted links
        if ((not l or not promote.is_promoted(l)) and
            (form.has_errors('title', errors.NO_TEXT,
                            errors.TOO_LONG) or
            form.has_errors('url', errors.NO_URL, errors.BAD_URL) or
            jquery.has_errors('ratelimit', errors.RATELIMIT))):
            return

        if not l:
            l = promote.new_promotion(title, url, c.user, ip)
        elif promote.is_promo(l):
            changed = False
            # live items can only be changed by a sponsor, and also
            # pay the cost of de-approving the link
            trusted = c.user_is_sponsor or c.user.trusted_sponsor
            if not promote.is_promoted(l) or trusted:
                if title and title != l.title:
                    l.title = title
                    changed = not trusted
                if url and url != l.url:
                    l.url = url
                    changed = not trusted

            # only trips if the title and url are changed by a non-sponsor
            if changed and not promote.is_unpaid(l):
                promote.unapprove_promotion(l)
            if trusted and promote.is_unapproved(l):
                promote.accept_promotion(l)

            if c.user_is_sponsor:
                l.maximum_clicks = max_clicks
                l.maximum_views = max_views

            # comment disabling is free to be changed any time.
            l.disable_comments = disable_comments
            if c.user_is_sponsor or c.user.trusted_sponsor:
                if media_embed and media_width and media_height:
                    l.media_object = dict(height=media_height,
                                          width=media_width,
                                          content=media_embed,
                                          type='custom')
                else:
                    l.media_object = None

                l.media_override = media_override
                if getattr(l, "domain_override", False) or domain_override:
                    l.domain_override = domain_override
            l._commit()

        form.redirect(promote.promo_edit_url(l))

 def POST_freebie(self, form, jquery, link, campaign):
     if promote.is_promo(link) and campaign:
         promote.free_campaign(link, campaign, c.user)
         form.redirect(promote.promo_edit_url(link))

 def GET_edit_promo_campaign(self, campaign):
     if not campaign:
         return self.abort404()
     link = Link._byID(campaign.link_id)
     return self.redirect(promote.promo_edit_url(link))

#.........这里部分代码省略.........

        # check for shame banned domains
        if form.has_errors("url", errors.DOMAIN_BANNED):
            g.stats.simple_event('spam.shame.link')
            return

        # demangle URL in canonical way
        if url:
            if isinstance(url, (unicode, str)):
                form.set_inputs(url=url)
            elif isinstance(url, tuple) or isinstance(url[0], Link):
                # there's already one or more links with this URL, but
                # we're allowing mutliple submissions, so we really just
                # want the URL
                url = url[0].url

        if kind == 'link':
            if form.has_errors('url', errors.NO_URL, errors.BAD_URL):
                return

        # users can change the disable_comments on promoted links
        if ((not l or not promote.is_promoted(l)) and
            (form.has_errors('title', errors.NO_TEXT, errors.TOO_LONG) or
             jquery.has_errors('ratelimit', errors.RATELIMIT))):
            return

        if not l:
            l = promote.new_promotion(title, url if kind == 'link' else 'self',
                                      selftext if kind == 'self' else '',
                                      user, request.ip)
            l.domain_override = domain_override or None
            l._commit()

        elif promote.is_promo(l):
            # changing link type is not allowed
            if ((l.is_self and kind == 'link') or
                (not l.is_self and kind == 'self')):
                c.errors.add(errors.NO_CHANGE_KIND, field="kind")
                form.set_error(errors.NO_CHANGE_KIND, "kind")
                return

            changed = False
            # live items can only be changed by a sponsor, and also
            # pay the cost of de-approving the link
            if not promote.is_promoted(l) or c.user_is_sponsor:
                if title and title != l.title:
                    l.title = title
                    changed = not c.user_is_sponsor

                if kind == 'link' and url and url != l.url:
                    l.url = url
                    changed = not c.user_is_sponsor

            # only trips if the title and url are changed by a non-sponsor
            if changed:
                promote.unapprove_promotion(l)

            # selftext can be changed at any time
            if kind == 'self':
                l.selftext = selftext

            # comment disabling and sendreplies is free to be changed any time.
            l.disable_comments = disable_comments
            l.sendreplies = sendreplies

            if c.user_is_sponsor:
                if (not media_url and
                        form.has_errors("media_url", errors.BAD_URL)):
                    return

                media_url = media_url or None
                media_changed = (media_url != l.media_url or
                                 media_autoplay != l.media_autoplay)

                if media_changed:
                    if media_url:
                        media = _scrape_media(
                            media_url, autoplay=media_autoplay,
                            save_thumbnail=False, use_cache=True)

                        if media:
                            l.set_media_object(media.media_object)
                            l.set_secure_media_object(media.secure_media_object)
                            l.media_url = media_url
                            l.media_autoplay = media_autoplay
                        else:
                            c.errors.add(errors.SCRAPER_ERROR, field="media_url")
                            form.set_error(errors.SCRAPER_ERROR, "media_url")
                            return
                    else:
                        l.set_media_object(None)
                        l.set_secure_media_object(None)
                        l.media_url = None
                        l.media_autoplay = False

                l.media_override = media_override
                l.domain_override = domain_override or None
            l._commit()

        form.redirect(promote.promo_edit_url(l))

#.........这里部分代码省略.........

        # check for user override
        if not l and c.user_is_sponsor and username:
            try:
                user = Account._by_name(username)
            except NotFound:
                c.errors.add(errors.USER_DOESNT_EXIST, field="username")
                form.set_error(errors.USER_DOESNT_EXIST, "username")
                return

            if not user.email:
                c.errors.add(errors.NO_EMAIL_FOR_USER, field="username")
                form.set_error(errors.NO_EMAIL_FOR_USER, "username")
                return

            if not user.email_verified:
                c.errors.add(errors.NO_VERIFIED_EMAIL, field="username")
                form.set_error(errors.NO_VERIFIED_EMAIL, "username")
                return
        else:
            user = c.user

        # check for shame banned domains
        if form.has_errors("url", errors.DOMAIN_BANNED):
            g.stats.simple_event('spam.shame.link')
            return

        # demangle URL in canonical way
        if url:
            if isinstance(url, (unicode, str)):
                form.set_inputs(url=url)
            elif isinstance(url, tuple) or isinstance(url[0], Link):
                # there's already one or more links with this URL, but
                # we're allowing mutliple submissions, so we really just
                # want the URL
                url = url[0].url

        if kind == 'link':
            if form.has_errors('url', errors.NO_URL, errors.BAD_URL):
                return

        # users can change the disable_comments on promoted links
        if ((not l or not promote.is_promoted(l)) and
            (form.has_errors('title', errors.NO_TEXT, errors.TOO_LONG) or
             jquery.has_errors('ratelimit', errors.RATELIMIT))):
            return

        if not l:
            l = promote.new_promotion(title, url if kind == 'link' else 'self',
                                      selftext if kind == 'self' else '',
                                      user, ip)

        elif promote.is_promo(l):
            # changing link type is not allowed
            if ((l.is_self and kind == 'link') or
                (not l.is_self and kind == 'self')):
                c.errors.add(errors.NO_CHANGE_KIND, field="kind")
                form.set_error(errors.NO_CHANGE_KIND, "kind")
                return

            changed = False
            # live items can only be changed by a sponsor, and also
            # pay the cost of de-approving the link
            trusted = c.user_is_sponsor or c.user.trusted_sponsor
            if not promote.is_promoted(l) or trusted:
                if title and title != l.title:
                    l.title = title
                    changed = not trusted

                if kind == 'link' and url and url != l.url:
                    l.url = url
                    changed = not trusted

            # only trips if the title and url are changed by a non-sponsor
            if changed and not promote.is_unpaid(l):
                promote.unapprove_promotion(l)
            if trusted and promote.is_unapproved(l):
                promote.accept_promotion(l)

            # selftext can be changed at any time
            if kind == 'self':
                l.selftext = selftext

            # comment disabling is free to be changed any time.
            l.disable_comments = disable_comments
            if c.user_is_sponsor or c.user.trusted_sponsor:
                if media_embed and media_width and media_height:
                    l.media_object = dict(height=media_height,
                                          width=media_width,
                                          content=media_embed,
                                          type='custom')
                else:
                    l.media_object = None

                l.media_override = media_override
                if getattr(l, "domain_override", False) or domain_override:
                    l.domain_override = domain_override
            l._commit()

        form.redirect(promote.promo_edit_url(l))

    def _edit_promo(self, form, jquery, username, title, url,
                    selftext, kind, disable_comments, sendreplies,
                    media_url, media_autoplay, media_override,
                    gifts_embed_url, media_url_type, domain_override,
                    is_managed, l=None, thumbnail_file=None):
        should_ratelimit = False
        if not c.user_is_sponsor:
            should_ratelimit = True

        if not should_ratelimit:
            c.errors.remove((errors.RATELIMIT, 'ratelimit'))

        # check for user override
        if not l and c.user_is_sponsor and username:
            try:
                user = Account._by_name(username)
            except NotFound:
                c.errors.add(errors.USER_DOESNT_EXIST, field="username")
                form.set_error(errors.USER_DOESNT_EXIST, "username")
                return

            if not user.email:
                c.errors.add(errors.NO_EMAIL_FOR_USER, field="username")
                form.set_error(errors.NO_EMAIL_FOR_USER, "username")
                return

            if not user.email_verified:
                c.errors.add(errors.NO_VERIFIED_EMAIL, field="username")
                form.set_error(errors.NO_VERIFIED_EMAIL, "username")
                return
        else:
            user = c.user

        # check for shame banned domains
        if form.has_errors("url", errors.DOMAIN_BANNED):
            g.stats.simple_event('spam.shame.link')
            return

        # demangle URL in canonical way
        if url:
            if isinstance(url, (unicode, str)):
                form.set_inputs(url=url)
            elif isinstance(url, tuple) or isinstance(url[0], Link):
                # there's already one or more links with this URL, but
                # we're allowing mutliple submissions, so we really just
                # want the URL
                url = url[0].url

        if kind == 'link':
            if form.has_errors('url', errors.NO_URL, errors.BAD_URL):
                return

        # users can change the disable_comments on promoted links
        if ((not l or not promote.is_promoted(l)) and
            (form.has_errors('title', errors.NO_TEXT, errors.TOO_LONG) or
             jquery.has_errors('ratelimit', errors.RATELIMIT))):
            return

        if kind == 'self' and form.has_errors('text', errors.TOO_LONG):
            return

        if not l:
            # creating a new promoted link
            l = promote.new_promotion(title, url if kind == 'link' else 'self',
                                      selftext if kind == 'self' else '',
                                      user, request.ip)
            l.domain_override = domain_override or None
            if c.user_is_sponsor:
                l.managed_promo = is_managed
            l._commit()

            # only set the thumbnail when creating a link
            if thumbnail_file:
                try:
                    force_thumbnail(l, thumbnail_file)
                    l._commit()
                except IOError:
                    pass

            form.redirect(promote.promo_edit_url(l))

        elif not promote.is_promo(l):
            return

        # changing link type is not allowed
        if ((l.is_self and kind == 'link') or
            (not l.is_self and kind == 'self')):
            c.errors.add(errors.NO_CHANGE_KIND, field="kind")
            form.set_error(errors.NO_CHANGE_KIND, "kind")
            return

        changed = False
        # live items can only be changed by a sponsor, and also
        # pay the cost of de-approving the link
        if not promote.is_promoted(l) or c.user_is_sponsor:
            if title and title != l.title:
                l.title = title
                changed = not c.user_is_sponsor

            if kind == 'link' and url and url != l.url:
#.........这里部分代码省略.........

    def POST_update_pay(self, form, jquery, link, campaign, customer_id, pay_id,
                        edit, address, creditcard):
        if not g.authorizenetapi:
            return

        if not link or not campaign or link._id != campaign.link_id:
            return abort(404, 'not found')

        # Check inventory
        if campaign_has_oversold_error(form, campaign):
            return

        # check the campaign dates are still valid (user may have created
        # the campaign a few days ago)
        min_start, max_start, max_end = promote.get_date_limits(
            link, c.user_is_sponsor)

        if campaign.start_date.date() > max_start:
            msg = _("please change campaign start date to %(date)s or earlier")
            date = format_date(max_start, format="short", locale=c.locale)
            msg %= {'date': date}
            form.set_text(".status", msg)
            return

        if campaign.start_date.date() < min_start:
            msg = _("please change campaign start date to %(date)s or later")
            date = format_date(min_start, format="short", locale=c.locale)
            msg %= {'date': date}
            form.set_text(".status", msg)
            return

        new_payment = not pay_id

        address_modified = new_payment or edit
        if address_modified:
            address_fields = ["firstName", "lastName", "company", "address",
                              "city", "state", "zip", "country", "phoneNumber"]
            card_fields = ["cardNumber", "expirationDate", "cardCode"]

            if (form.has_errors(address_fields, errors.BAD_ADDRESS) or
                    form.has_errors(card_fields, errors.BAD_CARD)):
                return

            pay_id = edit_profile(c.user, address, creditcard, pay_id)

            if pay_id:
                promote.new_payment_method(user=c.user, ip=request.ip, address=address, link=link)

        if pay_id:
            success, reason = promote.auth_campaign(link, campaign, c.user,
                                                    pay_id)

            if success:
                hooks.get_hook("promote.campaign_paid").call(link=link, campaign=campaign)
                if not address and g.authorizenetapi:
                    profiles = get_account_info(c.user).paymentProfiles
                    profile = {p.customerPaymentProfileId: p for p in profiles}[pay_id]

                    address = profile.billTo

                promote.successful_payment(link, campaign, request.ip, address)

                jquery.payment_redirect(promote.promo_edit_url(link), new_payment, campaign.bid)
                return
            else:
                promote.failed_payment_method(c.user, link)
                msg = reason or _("failed to authenticate card. sorry.")
                form.set_text(".status", msg)
        else:
            promote.failed_payment_method(c.user, link)
            form.set_text(".status", _("failed to authenticate card. sorry."))