From 0a1626dc47bd0b927b3421443b33f571db76e7f5 Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre.git@communiquons.org>
Date: Fri, 20 Mar 2020 11:49:37 +0100
Subject: [PATCH] Add links support

---
 src/controllers/PostsController.ts | 20 ++++++++++++++++++--
 src/entities/RequestHandler.ts     | 17 ++++++++++++++++-
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/src/controllers/PostsController.ts b/src/controllers/PostsController.ts
index b519e45..9d8d1d0 100644
--- a/src/controllers/PostsController.ts
+++ b/src/controllers/PostsController.ts
@@ -1,7 +1,7 @@
 import { RequestHandler } from "../entities/RequestHandler";
 import { UserHelper } from "../helpers/UserHelper";
 import { PostsHelper } from "../helpers/PostsHelper";
-import { Post, PostVisibilityLevel, PostKind, PostAccessLevel, PostPageKind, PostFile } from "../entities/Post";
+import { Post, PostVisibilityLevel, PostKind, PostAccessLevel, PostPageKind, PostFile, PostLink } from "../entities/Post";
 import { MoviesController } from "./MoviesController";
 import { MoviesHelper } from "../helpers/MoviesHelper";
 import { SurveyHelper } from "../helpers/SurveyHelper";
@@ -13,7 +13,7 @@ import { GroupsAccessLevel } from "../entities/Group";
 import { GroupsHelper } from "../helpers/GroupsHelper";
 import { time } from "../utils/DateUtils";
 import { findKey } from "../utils/ArrayUtils";
-import { check_string_before_insert, check_youtube_id } from "../utils/StringUtils";
+import { check_string_before_insert, check_youtube_id, checkURL } from "../utils/StringUtils";
 import { pathUserData } from "../utils/UserDataUtils";
 import { statSync } from "fs";
 import { lookup } from "mime-types";
@@ -215,6 +215,22 @@ export class PostsController {
 
 				break;
 			
+			
+			// Web links
+			case PostKind.POST_KIND_WEBLINK:
+
+				const url = h.postURL("url");
+
+				// For now, for safety, we do not fetch page content
+				newPost.link = new PostLink({
+					url: url,
+					title: undefined,
+					description: undefined,
+					image: undefined
+				});
+
+				break;
+			
 
 			default:
 				h.error(500, "Unsupported kind of post!");
diff --git a/src/entities/RequestHandler.ts b/src/entities/RequestHandler.ts
index 4816a4a..80c32b4 100644
--- a/src/entities/RequestHandler.ts
+++ b/src/entities/RequestHandler.ts
@@ -1,7 +1,7 @@
 import { Response, Request } from "express";
 import { APIHelper } from "../helpers/APIHelper";
 import { APIClient } from "./APIClient";
-import { checkMail, removeHTMLNodes } from "../utils/StringUtils";
+import { checkMail, removeHTMLNodes, checkURL } from "../utils/StringUtils";
 import { AccountHelper } from "../helpers/AccountHelper";
 import { UploadedFile } from "express-fileupload";
 import { prepareFileCreation, generateNewUserDataFileName, pathUserData } from "../utils/UserDataUtils";
@@ -337,6 +337,21 @@ export class RequestHandler {
 		return dir;
 	}
 
+	/**
+	 * Get an URL included in a POST request
+	 * 
+	 * @param name The name of the POST field containing
+	 * the URL
+	 */
+	public postURL(name: string) : string {
+		const url = this.postString(name);
+
+		if(!checkURL(url))
+			this.error(401, "Specified URL in '"+name+"' seems to be invalid!");
+
+		return url;
+	}
+
 	/**
 	 * Get information about an uploaded file
 	 *