Avoid relying on the order in which emails are sent

[rails.git] / app / controllers / changeset_controller.rb

diff --git a/app/controllers/changeset_controller.rb b/app/controllers/changeset_controller.rb
index bd908879fe423c71a861bab62d0339d53b7703a4..2a8fec95e775cf0ec024216c17256c0ff8210fb5 100644 (file)
--- a/app/controllers/changeset_controller.rb
+++ b/app/controllers/changeset_controller.rb
@@ -1,21 +1,21 @@
 # The ChangesetController is the RESTful interface to Changeset objects
 
 class ChangesetController < ApplicationController
 # The ChangesetController is the RESTful interface to Changeset objects
 
 class ChangesetController < ApplicationController

-  layout 'site'
-  require 'xml/libxml'
-
-  skip_before_filter :verify_authenticity_token, :except => [:list]
-  before_filter :authorize_web, :only => [:list, :feed]
-  before_filter :set_locale, :only => [:list, :feed]
-  before_filter :authorize, :only => [:create, :update, :delete, :upload, :include, :close]
-  before_filter :require_allow_write_api, :only => [:create, :update, :delete, :upload, :include, :close]
-  before_filter :require_public_data, :only => [:create, :update, :delete, :upload, :include, :close]
-  before_filter :check_api_writable, :only => [:create, :update, :delete, :upload, :include]
-  before_filter :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list, :feed]
-  before_filter(:only => [:list, :feed]) { |c| c.check_database_readable(true) }
-  after_filter :compress_output
-  around_filter :api_call_handle_error, :except => [:list, :feed]
-  around_filter :web_timeout, :only => [:list, :feed]
+  layout "site"
+  require "xml/libxml"
+
+  skip_before_action :verify_authenticity_token, :except => [:list]
+  before_action :authorize_web, :only => [:list, :feed, :comments_feed]
+  before_action :set_locale, :only => [:list, :feed, :comments_feed]
+  before_action :authorize, :only => [:create, :update, :delete, :upload, :include, :close, :comment, :subscribe, :unsubscribe, :hide_comment, :unhide_comment]
+  before_action :require_moderator, :only => [:hide_comment, :unhide_comment]
+  before_action :require_allow_write_api, :only => [:create, :update, :delete, :upload, :include, :close, :comment, :subscribe, :unsubscribe, :hide_comment, :unhide_comment]
+  before_action :require_public_data, :only => [:create, :update, :delete, :upload, :include, :close, :comment, :subscribe, :unsubscribe]
+  before_action :check_api_writable, :only => [:create, :update, :delete, :upload, :include, :comment, :subscribe, :unsubscribe, :hide_comment, :unhide_comment]
+  before_action :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list, :feed, :comment, :subscribe, :unsubscribe, :comments_feed]
+  before_action(:only => [:list, :feed, :comments_feed]) { |c| c.check_database_readable(true) }
+  around_action :api_call_handle_error, :except => [:list, :feed, :comments_feed]
+  around_action :web_timeout, :only => [:list, :feed, :comments_feed]

 
   # Helper methods for checking consistency
   include ConsistencyValidations
 
   # Helper methods for checking consistency
   include ConsistencyValidations


@@ -29,6 +29,10 @@ class ChangesetController < ApplicationController
     # Assume that Changeset.from_xml has thrown an exception if there is an error parsing the xml
     cs.user_id = @user.id
     cs.save_with_tags!
     # Assume that Changeset.from_xml has thrown an exception if there is an error parsing the xml
     cs.user_id = @user.id
     cs.save_with_tags!

+
+    # Subscribe user to changeset comments
+    cs.subscribers << @user
+

     render :text => cs.id.to_s, :content_type => "text/plain"
   end
 
     render :text => cs.id.to_s, :content_type => "text/plain"
   end
 


@@ -37,7 +41,8 @@ class ChangesetController < ApplicationController
   # return anything about the nodes, ways and relations in the changeset.
   def read
     changeset = Changeset.find(params[:id])
   # return anything about the nodes, ways and relations in the changeset.
   def read
     changeset = Changeset.find(params[:id])

-    render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+
+    render :text => changeset.to_xml(params[:include_discussion].presence).to_s, :content_type => "text/xml"

   end
 
   ##
   end
 
   ##


@@ -72,15 +77,15 @@ class ChangesetController < ApplicationController
     check_changeset_consistency(cs, @user)
 
     # keep an array of lons and lats
     check_changeset_consistency(cs, @user)
 
     # keep an array of lons and lats

-    lon = Array.new
-    lat = Array.new
+    lon = []
+    lat = []

 
     # the request is in pseudo-osm format... this is kind-of an
     # abuse, maybe should change to some other format?
     doc = XML::Parser.string(request.raw_post).parse
     doc.find("//osm/node").each do |n|
 
     # the request is in pseudo-osm format... this is kind-of an
     # abuse, maybe should change to some other format?
     doc = XML::Parser.string(request.raw_post).parse
     doc.find("//osm/node").each do |n|

-      lon << n['lon'].to_f * GeoRecord::SCALE
-      lat << n['lat'].to_f * GeoRecord::SCALE
+      lon << n["lon"].to_f * GeoRecord::SCALE
+      lat << n["lat"].to_f * GeoRecord::SCALE

     end
 
     # add the existing bounding box to the lon-lat array
     end
 
     # add the existing bounding box to the lon-lat array


@@ -179,14 +184,14 @@ class ChangesetController < ApplicationController
           created = XML::Node.new "create"
           created << elt.to_xml_node(changeset_cache, user_display_name_cache)
         else
           created = XML::Node.new "create"
           created << elt.to_xml_node(changeset_cache, user_display_name_cache)
         else

-          unless elt.visible
-            # if the element isn't visible then it must have been deleted
-            deleted = XML::Node.new "delete"
-            deleted << elt.to_xml_node(changeset_cache, user_display_name_cache)
-          else
+          if elt.visible

             # must be a modify
             modified = XML::Node.new "modify"
             modified << elt.to_xml_node(changeset_cache, user_display_name_cache)
             # must be a modify
             modified = XML::Node.new "modify"
             modified << elt.to_xml_node(changeset_cache, user_display_name_cache)

+          else
+            # if the element isn't visible then it must have been deleted
+            deleted = XML::Node.new "delete"
+            deleted << elt.to_xml_node(changeset_cache, user_display_name_cache)

           end
         end
     end
           end
         end
     end


@@ -198,18 +203,17 @@ class ChangesetController < ApplicationController
   # query changesets by bounding box, time, user or open/closed status.
   def query
     # find any bounding box
   # query changesets by bounding box, time, user or open/closed status.
   def query
     # find any bounding box

-    if params['bbox']
-      bbox = BoundingBox.from_bbox_params(params)
-    end
+    bbox = BoundingBox.from_bbox_params(params) if params["bbox"]

 
     # create the conditions that the user asked for. some or all of
     # these may be nil.
     changesets = Changeset.all
     changesets = conditions_bbox(changesets, bbox)
 
     # create the conditions that the user asked for. some or all of
     # these may be nil.
     changesets = Changeset.all
     changesets = conditions_bbox(changesets, bbox)

-    changesets = conditions_user(changesets, params['user'], params['display_name'])
-    changesets = conditions_time(changesets, params['time'])
-    changesets = conditions_open(changesets, params['open'])
-    changesets = conditions_closed(changesets, params['closed'])
+    changesets = conditions_user(changesets, params["user"], params["display_name"])
+    changesets = conditions_time(changesets, params["time"])
+    changesets = conditions_open(changesets, params["open"])
+    changesets = conditions_closed(changesets, params["closed"])
+    changesets = conditions_ids(changesets, params["changesets"])

 
     # create the results document
     results = OSM::API.new.get_xml_doc
 
     # create the results document
     results = OSM::API.new.get_xml_doc


@@ -237,68 +241,61 @@ class ChangesetController < ApplicationController
     changeset = Changeset.find(params[:id])
     new_changeset = Changeset.from_xml(request.raw_post)
 
     changeset = Changeset.find(params[:id])
     new_changeset = Changeset.from_xml(request.raw_post)
 

-    unless new_changeset.nil?
+    if new_changeset.nil?
+      render :text => "", :status => :bad_request
+    else

       check_changeset_consistency(changeset, @user)
       changeset.update_from(new_changeset, @user)
       render :text => changeset.to_xml, :mime_type => "text/xml"
       check_changeset_consistency(changeset, @user)
       changeset.update_from(new_changeset, @user)
       render :text => changeset.to_xml, :mime_type => "text/xml"

-    else
-
-      render :text => "", :status => :bad_request

     end
   end
 
   ##
   # list edits (open changesets) in reverse chronological order
   def list
     end
   end
 
   ##
   # list edits (open changesets) in reverse chronological order
   def list

-    if request.format == :atom and params[:page]
-      redirect_to params.merge({ :page => nil }), :status => :moved_permanently
-    elsif request.format == :html and !params[:bbox]
+    if request.format == :atom && params[:max_id]
+      redirect_to params.merge(:max_id => nil), :status => :moved_permanently
+      return
+    end
+
+    if params[:display_name]
+      user = User.find_by_display_name(params[:display_name])
+      if !user || !user.active?
+        render_unknown_user params[:display_name]
+        return
+      end
+    end
+
+    if (params[:friends] || params[:nearby]) && !@user && request.format == :html
+      require_user
+      return
+    end
+
+    if request.format == :html && !params[:list]
+      require_oauth

       render :action => :history, :layout => map_layout
     else
       changesets = conditions_nonempty(Changeset.all)
 
       if params[:display_name]
       render :action => :history, :layout => map_layout
     else
       changesets = conditions_nonempty(Changeset.all)
 
       if params[:display_name]

-        user = User.find_by_display_name(params[:display_name])
-
-        if user and user.active?
-          if user.data_public? or user == @user
-            changesets = changesets.where(:user_id => user.id)
-          else
-            changesets = changesets.where("false")
-          end
+        if user.data_public? || user == @user
+          changesets = changesets.where(:user_id => user.id)

         else
         else

-          render_unknown_user params[:display_name]
-          return
+          changesets = changesets.where("false")

         end
         end

-      end
-
-      if params[:friends]
-        if @user
-          changesets = changesets.where(:user_id => @user.friend_users.public)
-        elsif request.format == :html
-          require_user
-          return
-        end
-      end
-
-      if params[:nearby]
-        if @user
-          changesets = changesets.where(:user_id => @user.nearby)
-        elsif request.format == :html
-          require_user
-          return
-        end
-      end
-
-      if params[:bbox]
+      elsif params[:bbox]

         changesets = conditions_bbox(changesets, BoundingBox.from_bbox_params(params))
         changesets = conditions_bbox(changesets, BoundingBox.from_bbox_params(params))

+      elsif params[:friends] && @user
+        changesets = changesets.where(:user_id => @user.friend_users.identifiable)
+      elsif params[:nearby] && @user
+        changesets = changesets.where(:user_id => @user.nearby)

       end
 
       if params[:max_id]
         changesets = changesets.where("changesets.id <= ?", params[:max_id])
       end
 
       end
 
       if params[:max_id]
         changesets = changesets.where("changesets.id <= ?", params[:max_id])
       end
 

-      @edits = changesets.order("changesets.created_at DESC").limit(20).preload(:user, :changeset_tags)
+      @edits = changesets.order("changesets.id DESC").limit(20).preload(:user, :changeset_tags)

 
       render :action => :list, :layout => false
     end
 
       render :action => :list, :layout => false
     end


@@ -310,7 +307,145 @@ class ChangesetController < ApplicationController
     list
   end
 
     list
   end
 

-private
+  ##
+  # Add a comment to a changeset
+  def comment
+    # Check the arguments are sane
+    fail OSM::APIBadUserInput.new("No id was given") unless params[:id]
+    fail OSM::APIBadUserInput.new("No text was given") if params[:text].blank?
+
+    # Extract the arguments
+    id = params[:id].to_i
+    body = params[:text]
+
+    # Find the changeset and check it is valid
+    changeset = Changeset.find(id)
+    fail OSM::APIChangesetNotYetClosedError.new(changeset) if changeset.is_open?
+
+    # Add a comment to the changeset
+    comment = changeset.comments.create(:changeset => changeset,
+                                        :body => body,
+                                        :author => @user)
+
+    # Notify current subscribers of the new comment
+    changeset.subscribers.each do |user|
+      if @user != user
+        Notifier.changeset_comment_notification(comment, user).deliver_now
+      end
+    end
+
+    # Add the commenter to the subscribers if necessary
+    changeset.subscribers << @user unless changeset.subscribers.exists?(@user.id)
+
+    # Return a copy of the updated changeset
+    render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+  end
+
+  ##
+  # Adds a subscriber to the changeset
+  def subscribe
+    # Check the arguments are sane
+    fail OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+    # Extract the arguments
+    id = params[:id].to_i
+
+    # Find the changeset and check it is valid
+    changeset = Changeset.find(id)
+    fail OSM::APIChangesetNotYetClosedError.new(changeset) if changeset.is_open?
+    fail OSM::APIChangesetAlreadySubscribedError.new(changeset) if changeset.subscribers.exists?(@user.id)
+
+    # Add the subscriber
+    changeset.subscribers << @user
+
+    # Return a copy of the updated changeset
+    render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+  end
+
+  ##
+  # Removes a subscriber from the changeset
+  def unsubscribe
+    # Check the arguments are sane
+    fail OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+    # Extract the arguments
+    id = params[:id].to_i
+
+    # Find the changeset and check it is valid
+    changeset = Changeset.find(id)
+    fail OSM::APIChangesetNotYetClosedError.new(changeset) if changeset.is_open?
+    fail OSM::APIChangesetNotSubscribedError.new(changeset) unless changeset.subscribers.exists?(@user.id)
+
+    # Remove the subscriber
+    changeset.subscribers.delete(@user)
+
+    # Return a copy of the updated changeset
+    render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+  end
+
+  ##
+  # Sets visible flag on comment to false
+  def hide_comment
+    # Check the arguments are sane
+    fail OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+    # Extract the arguments
+    id = params[:id].to_i
+
+    # Find the changeset
+    comment = ChangesetComment.find(id)
+
+    # Hide the comment
+    comment.update(:visible => false)
+
+    # Return a copy of the updated changeset
+    render :text => comment.changeset.to_xml.to_s, :content_type => "text/xml"
+  end
+
+  ##
+  # Sets visible flag on comment to true
+  def unhide_comment
+    # Check the arguments are sane
+    fail OSM::APIBadUserInput.new("No id was given") unless params[:id]
+
+    # Extract the arguments
+    id = params[:id].to_i
+
+    # Find the changeset
+    comment = ChangesetComment.find(id)
+
+    # Unhide the comment
+    comment.update(:visible => true)
+
+    # Return a copy of the updated changeset
+    render :text => comment.changeset.to_xml.to_s, :content_type => "text/xml"
+  end
+
+  ##
+  # Get a feed of recent changeset comments
+  def comments_feed
+    if params[:id]
+      # Extract the arguments
+      id = params[:id].to_i
+
+      # Find the changeset
+      changeset = Changeset.find(id)
+
+      # Return comments for this changeset only
+      @comments = changeset.comments.includes(:author, :changeset).limit(comments_limit)
+    else
+      # Return comments
+      @comments = ChangesetComment.includes(:author, :changeset).where(:visible => :true).order("created_at DESC").limit(comments_limit).preload(:changeset)
+    end
+
+    # Render the result
+    respond_to do |format|
+      format.rss
+    end
+  end
+
+  private
+

   #------------------------------------------------------------
   # utility functions below.
   #------------------------------------------------------------
   #------------------------------------------------------------
   # utility functions below.
   #------------------------------------------------------------


@@ -334,21 +469,23 @@ private
   ##
   # restrict changesets to those by a particular user
   def conditions_user(changesets, user, name)
   ##
   # restrict changesets to those by a particular user
   def conditions_user(changesets, user, name)

-    unless user.nil? and name.nil?
+    if user.nil? && name.nil?
+      return changesets
+    else

       # shouldn't provide both name and UID
       # shouldn't provide both name and UID

-      raise OSM::APIBadUserInput.new("provide either the user ID or display name, but not both") if user and name
+      fail OSM::APIBadUserInput.new("provide either the user ID or display name, but not both") if user && name

 
       # use either the name or the UID to find the user which we're selecting on.
       u = if name.nil?
             # user input checking, we don't have any UIDs < 1
 
       # use either the name or the UID to find the user which we're selecting on.
       u = if name.nil?
             # user input checking, we don't have any UIDs < 1

-            raise OSM::APIBadUserInput.new("invalid user ID") if user.to_i < 1
+            fail OSM::APIBadUserInput.new("invalid user ID") if user.to_i < 1

             u = User.find(user.to_i)
           else
             u = User.find_by_display_name(name)
           end
 
       # make sure we found a user
             u = User.find(user.to_i)
           else
             u = User.find_by_display_name(name)
           end
 
       # make sure we found a user

-      raise OSM::APINotFoundError.new if u.nil?
+      fail OSM::APINotFoundError.new if u.nil?

 
       # should be able to get changesets of public users only, or
       # our own changesets regardless of public-ness.
 
       # should be able to get changesets of public users only, or
       # our own changesets regardless of public-ness.


@@ -357,24 +494,24 @@ private
         # changesets if they're non-public
         setup_user_auth
 
         # changesets if they're non-public
         setup_user_auth
 

-        raise OSM::APINotFoundError if @user.nil? or @user.id != u.id
+        fail OSM::APINotFoundError if @user.nil? || @user.id != u.id

       end
       return changesets.where(:user_id => u.id)
       end
       return changesets.where(:user_id => u.id)

-    else
-      return changesets

     end
   end
 
   ##
   # restrict changes to those closed during a particular time period
   def conditions_time(changesets, time)
     end
   end
 
   ##
   # restrict changes to those closed during a particular time period
   def conditions_time(changesets, time)

-    unless time.nil?
+    if time.nil?
+      return changesets
+    else

       # if there is a range, i.e: comma separated, then the first is
       # low, second is high - same as with bounding boxes.
       # if there is a range, i.e: comma separated, then the first is
       # low, second is high - same as with bounding boxes.

-      if time.count(',') == 1
+      if time.count(",") == 1

         # check that we actually have 2 elements in the array
         times = time.split(/,/)
         # check that we actually have 2 elements in the array
         times = time.split(/,/)

-        raise OSM::APIBadUserInput.new("bad time range") if times.size != 2
+        fail OSM::APIBadUserInput.new("bad time range") if times.size != 2

 
         from, to = times.collect { |t| DateTime.parse(t) }
         return changesets.where("closed_at >= ? and created_at <= ?", from, to)
 
         from, to = times.collect { |t| DateTime.parse(t) }
         return changesets.where("closed_at >= ? and created_at <= ?", from, to)


@@ -382,8 +519,6 @@ private
         # if there is no comma, assume its a lower limit on time
         return changesets.where("closed_at >= ?", DateTime.parse(time))
       end
         # if there is no comma, assume its a lower limit on time
         return changesets.where("closed_at >= ?", DateTime.parse(time))
       end

-    else
-      return changesets

     end
     # stupid DateTime seems to throw both of these for bad parsing, so
     # we have to catch both and ensure the correct code path is taken.
     end
     # stupid DateTime seems to throw both of these for bad parsing, so
     # we have to catch both and ensure the correct code path is taken.


@@ -419,11 +554,38 @@ private
     end
   end
 
     end
   end
 

+  ##
+  # query changesets by a list of ids
+  # (either specified as array or comma-separated string)
+  def conditions_ids(changesets, ids)
+    if ids.nil?
+      return changesets
+    elsif ids.empty?
+      fail OSM::APIBadUserInput.new("No changesets were given to search for")
+    else
+      ids = ids.split(",").collect(&:to_i)
+      return changesets.where(:id => ids)
+    end
+  end
+

   ##
   # eliminate empty changesets (where the bbox has not been set)
   # this should be applied to all changeset list displays
   def conditions_nonempty(changesets)
   ##
   # eliminate empty changesets (where the bbox has not been set)
   # this should be applied to all changeset list displays
   def conditions_nonempty(changesets)

-    return changesets.where("num_changes > 0")
+    changesets.where("num_changes > 0")

   end
 
   end
 

+  ##
+  # Get the maximum number of comments to return
+  def comments_limit
+    if params[:limit]
+      if params[:limit].to_i > 0 && params[:limit].to_i <= 10000
+        params[:limit].to_i
+      else
+        fail OSM::APIBadUserInput.new("Comments limit must be between 1 and 10000")
+      end
+    else
+      100
+    end
+  end

 end
 end