--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/comments/views/comments.py	Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,125 @@
+from django import http
+from django.conf import settings
+from utils import next_redirect, confirmation_view
+from django.core.exceptions import ObjectDoesNotExist
+from django.db import models
+from django.shortcuts import render_to_response
+from django.template import RequestContext
+from django.template.loader import render_to_string
+from django.utils.html import escape
+from django.views.decorators.http import require_POST
+from django.contrib import comments
+from django.contrib.comments import signals
+
+class CommentPostBadRequest(http.HttpResponseBadRequest):
+    """
+    Response returned when a comment post is invalid. If ``DEBUG`` is on a
+    nice-ish error message will be displayed (for debugging purposes), but in
+    production mode a simple opaque 400 page will be displayed.
+    """
+    def __init__(self, why):
+        super(CommentPostBadRequest, self).__init__()
+        if settings.DEBUG:
+            self.content = render_to_string("comments/400-debug.html", {"why": why})
+
+def post_comment(request, next=None):
+    """
+    Post a comment.
+
+    HTTP POST is required. If ``POST['submit'] == "preview"`` or if there are
+    errors a preview template, ``comments/preview.html``, will be rendered.
+    """
+    # Fill out some initial data fields from an authenticated user, if present
+    data = request.POST.copy()
+    if request.user.is_authenticated():
+        if not data.get('name', ''):
+            data["name"] = request.user.get_full_name() or request.user.username
+        if not data.get('email', ''):
+            data["email"] = request.user.email
+
+    # Check to see if the POST data overrides the view's next argument.
+    next = data.get("next", next)
+
+    # Look up the object we're trying to comment about
+    ctype = data.get("content_type")
+    object_pk = data.get("object_pk")
+    if ctype is None or object_pk is None:
+        return CommentPostBadRequest("Missing content_type or object_pk field.")
+    try:
+        model = models.get_model(*ctype.split(".", 1))
+        target = model._default_manager.get(pk=object_pk)
+    except TypeError:
+        return CommentPostBadRequest(
+            "Invalid content_type value: %r" % escape(ctype))
+    except AttributeError:
+        return CommentPostBadRequest(
+            "The given content-type %r does not resolve to a valid model." % \
+                escape(ctype))
+    except ObjectDoesNotExist:
+        return CommentPostBadRequest(
+            "No object matching content-type %r and object PK %r exists." % \
+                (escape(ctype), escape(object_pk)))
+
+    # Do we want to preview the comment?
+    preview = "preview" in data
+
+    # Construct the comment form
+    form = comments.get_form()(target, data=data)
+
+    # Check security information
+    if form.security_errors():
+        return CommentPostBadRequest(
+            "The comment form failed security verification: %s" % \
+                escape(str(form.security_errors())))
+
+    # If there are errors or if we requested a preview show the comment
+    if form.errors or preview:
+        template_list = [
+            "comments/%s_%s_preview.html" % tuple(str(model._meta).split(".")),
+            "comments/%s_preview.html" % model._meta.app_label,
+            "comments/preview.html",
+        ]
+        return render_to_response(
+            template_list, {
+                "comment" : form.data.get("comment", ""),
+                "form" : form,
+                "next": next,
+            },
+            RequestContext(request, {})
+        )
+
+    # Otherwise create the comment
+    comment = form.get_comment_object()
+    comment.ip_address = request.META.get("REMOTE_ADDR", None)
+    if request.user.is_authenticated():
+        comment.user = request.user
+
+    # Signal that the comment is about to be saved
+    responses = signals.comment_will_be_posted.send(
+        sender  = comment.__class__,
+        comment = comment,
+        request = request
+    )
+
+    for (receiver, response) in responses:
+        if response == False:
+            return CommentPostBadRequest(
+                "comment_will_be_posted receiver %r killed the comment" % receiver.__name__)
+
+    # Save the comment and signal that it was saved
+    comment.save()
+    signals.comment_was_posted.send(
+        sender  = comment.__class__,
+        comment = comment,
+        request = request
+    )
+
+    return next_redirect(data, next, comment_done, c=comment._get_pk_val())
+
+post_comment = require_POST(post_comment)
+
+comment_done = confirmation_view(
+    template = "comments/posted.html",
+    doc = """Display a "comment was posted" success page."""
+)
+