add post search

lib/philomena/comments/elasticsearch.ex

@@ -40,7 +40,7 @@ defmodule Philomena.Comments.Elasticsearch do
       author: if(!!comment.user and !comment.anonymous, do: comment.user.name),
       image_tag_ids: comment.image.tags |> Enum.map(& &1.id),
       anonymous: comment.anonymous,
-      hidden_from_users: comment.hidden_from_users,
+      hidden_from_users: comment.image.hidden_from_users || comment.hidden_from_users,
       body: comment.body
     }
   end

lib/philomena/posts/elasticsearch.ex

@@ -0,0 +1,62 @@
+defmodule Philomena.Posts.Elasticsearch do
+  def mapping do
+    %{
+      settings: %{
+        index: %{
+          number_of_shards: 5,
+          max_result_window: 10_000_000
+        }
+      },
+      mappings: %{
+        post: %{
+          _all: %{enabled: false},
+          dynamic: false,
+          properties: %{
+            id: %{type: "integer"},
+            body: %{type: "text", analyzer: "snowball"},
+            ip: %{type: "ip"},
+            user_agent: %{type: "keyword"},
+            referrer: %{type: "keyword"},
+            fingerprint: %{type: "keyword"},
+            subject: %{type: "text", analyzer: "snowball"},
+            author: %{type: "keyword"},
+            topic_position: %{type: "integer"},
+            forum_id: %{type: "keyword"},
+            topic_id: %{type: "keyword"},
+            user_id: %{type: "keyword"},
+            anonymous: %{type: "boolean"},
+            updated_at: %{type: "date"},
+            created_at: %{type: "date"},
+            deleted: %{type: "boolean"},
+            access_level: %{type: "keyword"},
+            destroyed_content: %{type: "boolean"}
+          }
+        }
+      }
+    }
+  end
+
+  # [:user, topic: :forum]
+  def as_json(post) do
+    %{
+      id: post.id,
+      topic_id: post.topic_id,
+      body: post.body,
+      author: if(!!post.user and !post.anonymous, do: String.downcase(post.user.name)),
+      subject: post.topic.title,
+      ip: post.ip |> to_string(),
+      user_agent: post.user_agent,
+      referrer: post.referrer,
+      fingerprint: post.fingerprint,
+      topic_position: post.topic_position,
+      forum_id: post.topic.forum_id,
+      user_id: post.user_id,
+      anonymous: post.anonymous,
+      created_at: post.created_at,
+      updated_at: post.updated_at,
+      deleted: post.hidden_from_users,
+      access_level: post.topic.forum.access_level,
+      destroyed_content: post.destroyed_content
+    }
+  end
+end

lib/philomena/posts/post.ex

@@ -2,6 +2,11 @@ defmodule Philomena.Posts.Post do
   use Ecto.Schema
   import Ecto.Changeset
 
+  use Philomena.Elasticsearch,
+    definition: Philomena.Posts.Elasticsearch,
+    index_name: "posts",
+    doc_type: "post"
+
   alias Philomena.Users.User
   alias Philomena.Topics.Topic
 

lib/philomena_web/controllers/comment_controller.ex

@@ -1,7 +1,8 @@
 defmodule PhilomenaWeb.CommentController do
   use PhilomenaWeb, :controller
 
-  alias Philomena.{Comments.Comment, Textile.Renderer}
+  alias Philomena.{Images.Image, Comments.Comment, Textile.Renderer}
+  alias Philomena.Repo
   import Ecto.Query
 
   def index(conn, params) do
@@ -10,7 +11,7 @@ defmodule PhilomenaWeb.CommentController do
         %{
           query: %{
             bool: %{
-              must: parse_search(params) ++ [%{term: %{hidden_from_users: false}}]
+              must: parse_search(conn, params) ++ [%{term: %{hidden_from_users: false}}]
             }
           },
           sort: parse_sort(params)
@@ -29,12 +30,12 @@ defmodule PhilomenaWeb.CommentController do
     render(conn, "index.html", comments: comments)
   end
 
-  defp parse_search(%{"comment" => comment_params}) do
+  defp parse_search(conn, %{"comment" => comment_params}) do
     parse_author(comment_params) ++
-    parse_image_id(comment_params) ++
+    parse_image_id(conn, comment_params) ++
     parse_body(comment_params)
   end
-  defp parse_search(_params), do: [%{match_all: %{}}]
+  defp parse_search(_conn, _params), do: [%{match_all: %{}}]
 
   defp parse_author(%{"author" => author}) when author not in [nil, ""] do
     case String.contains?(author, ["*", "?"]) do
@@ -53,11 +54,12 @@ defmodule PhilomenaWeb.CommentController do
   end
   defp parse_author(_params), do: []
 
-  defp parse_image_id(%{"image_id" => image_id}) when image_id not in [nil, ""] do
-    case Integer.parse(image_id) do
-      {image_id, _rest} ->
-        [%{term: %{image_id: image_id}}]
-
+  defp parse_image_id(conn, %{"image_id" => image_id}) when image_id not in [nil, ""] do
+    with {image_id, _rest} <- Integer.parse(image_id),
+         true <- valid_image?(conn.assigns.current_user, image_id)
+    do
+      [%{term: %{image_id: image_id}}]
+    else
       _error ->
         []
     end
@@ -74,4 +76,13 @@ defmodule PhilomenaWeb.CommentController do
   defp parse_sort(_params) do
     %{posted_at: :desc}
   end
+
+  defp valid_image?(user, image_id) do
+    image =
+      Image
+      |> where(id: ^image_id)
+      |> Repo.one()
+
+    Canada.Can.can?(user, :show, image)
+  end
 end

lib/philomena_web/controllers/post_controller.ex

@@ -1,7 +1,105 @@
 defmodule PhilomenaWeb.PostController do
   use PhilomenaWeb, :controller
 
-  def index(conn, _params) do
-    
+  alias Philomena.{Forums.Forum,  Posts.Post, Textile.Renderer}
+  alias Philomena.Repo
+  import Ecto.Query
+
+  def index(conn, params) do
+    user = conn.assigns.current_user
+
+    posts =
+      Post.search_records(
+        %{
+          query: %{
+            bool: %{
+              must: parse_search(conn, params) ++ [%{term: %{deleted: false}}]
+            }
+          },
+          sort: parse_sort(params)
+        },
+        conn.assigns.pagination,
+        Post |> preload([topic: :forum, user: [awards: :badge]])
+      )
+
+    rendered =
+      posts.entries
+      |> Renderer.render_collection()
+
+    posts =
+      %{posts | entries: Enum.zip(posts.entries, rendered)}
+
+    forums =
+      Forum
+      |> order_by(asc: :name)
+      |> Repo.all()
+      |> Enum.filter(&Canada.Can.can?(user, :show, &1))
+      |> Enum.map(&{&1.name, &1.id})
+
+    forums = [{"-", ""} | forums]
+
+    render(conn, "index.html", posts: posts, forums: forums)
+  end
+
+  defp parse_search(conn, %{"post" => post_params}) do
+    parse_author(post_params) ++
+    parse_subject(post_params) ++
+    parse_forum_id(conn, post_params) ++
+    parse_body(post_params)
+  end
+  defp parse_search(_conn, _params), do: [%{match_all: %{}}]
+
+  defp parse_author(%{"author" => author}) when author not in [nil, ""] do
+    case String.contains?(author, ["*", "?"]) do
+      true ->
+        [
+          %{wildcard: %{author: String.downcase(author)}},
+          %{term: %{anonymous: false}}
+        ]
+
+      false ->
+        [
+          %{term: %{author: String.downcase(author)}},
+          %{term: %{anonymous: false}}
+        ]
+    end
+  end
+  defp parse_author(_params), do: []
+
+  defp parse_subject(%{"subject" => subject}) when subject not in [nil, ""] do
+    [%{match: %{subject: %{query: subject, operator: "and"}}}]
+  end
+  defp parse_subject(_params), do: []
+
+  defp parse_forum_id(conn, %{"forum_id" => forum_id}) when forum_id not in [nil, ""] do
+    with {forum_id, _rest} <- Integer.parse(forum_id),
+         true <- valid_forum?(conn.assigns.current_user, forum_id)
+    do
+        [%{term: %{forum_id: forum_id}}]
+    else
+      _error ->
+        []
+    end
+  end
+  defp parse_forum_id(_conn, _params), do: []
+
+  defp parse_body(%{"body" => body}) when body not in [nil, ""],
+    do: [%{match: %{body: body}}]
+  defp parse_body(_params), do: []
+
+  defp parse_sort(%{"post" => %{"sf" => sf, "sd" => sd}}) when sf in ["created_at", "_score"] and sd in ["desc", "asc"] do
+    %{sf => sd}
+  end
+  defp parse_sort(_params) do
+    %{created_at: :desc}
+  end
+
+  defp valid_forum?(user, forum_id) do
+    forum =
+      Forum
+      |> where(id: ^forum_id)
+      |> Repo.one()
+
+    Canada.Can.can?(user, :show, forum)
   end
 end

lib/philomena_web/router.ex

@@ -96,6 +96,7 @@ defmodule PhilomenaWeb.Router do
     resources "/filters", FilterController
     resources "/profiles", ProfileController, only: [:show]
     resources "/captchas", CaptchaController, only: [:create]
+    resources "/posts", PostController, only: [:index]
 
     get "/:id", ImageController, :show
   end

lib/philomena_web/templates/post/index.html.slime

@@ -0,0 +1,49 @@
+elixir:
+  route = fn p -> Routes.post_path(@conn, :index, p) end
+  pagination = render PhilomenaWeb.PaginationView, "_pagination.html", page: @posts, route: route
+
+.column-layout
+  .column-layout__left
+    .block
+      .block__content
+        h3 Search Posts
+
+        = form_for @conn, Routes.post_path(@conn, :index), [as: :post, method: "get", class: "hform"], fn f ->
+          .field = label f, :author, "Author"
+          .field = text_input f, :author, class: "input hform__text", placeholder: "Author (* is wildcard)"
+
+          .field = label f, :forum_id, "Forum"
+          .field = select f, :forum_id, @forums, class: "input input--wide"
+
+          .field = label f, :body, "Body"
+          .field = textarea f, :body, class: "input input--wide", placeholder: "Body"
+
+          .field = label f, :sf, "Sort by"
+          .field
+            => select f, :sf, ["Creation Date": "created_at", "Relevance": "_score"], class: "input"
+            => select f, :sd, ["Descending": "desc", "Ascending": "asc"], class: "input"
+
+          .field
+          = submit "Search", class: "button button--state-primary"
+
+  .column-layout__main
+    .block
+      .block__header
+        = pagination
+
+    .post-search-results
+      = for {post, body} <- @posts do
+        .post-entry-wrapper
+          h3
+            => link post.topic.forum.name, to: Routes.forum_path(@conn, :show, post.topic.forum)
+            ' &raquo;
+            => link post.topic.title, to: Routes.forum_topic_path(@conn, :show, post.topic.forum, post.topic)
+            ' &raquo;
+            a href=(Routes.forum_topic_path(@conn, :show, post.topic.forum, post.topic, post_id: post.id) <> "#post_#{post.id}")
+              = if post.topic_position == 0 do
+                ' Topic Opener
+              - else
+                ' Post
+                = post.topic_position + 1
+
+          = render PhilomenaWeb.PostView, "_post.html", post: post, body: body, conn: @conn