Set up mobile-proxy

configuration/data/mobile-proxy/config.jsx

@@ -0,0 +1,61 @@
+"use strict";
+
+const React = require("react");
+const url = require("url");
+
+function NoticeBox({ children, siteName }) {
+	return (
+		<div style={{backgroundColor: "#3C0000", color: "white", padding: "4px", margin: "4px"}}>
+			<strong>This is a mobile proxy.</strong> It is intended to visit {siteName} on devices that would otherwise not correctly display the site. {children}
+		</div>
+	);
+}
+
+module.exports = {
+	port: 3000,
+	hosts: {
+		"awesomedude.cryto.net": {
+			prefix: () => (
+				<NoticeBox siteName="AwesomeDude" />
+			),
+			filters: [{
+				matchPath: "/",
+				mapUrl: "http://www.awesomedude.com/",
+				mapContent: ($) => $("#container").html()
+			}, {
+				mapUrl: ({path}) => url.resolve("http://www.awesomedude.com/", path),
+				mapContent: ($) => $("body").html()
+			}]
+		},
+		"castleroland.cryto.net": {
+			prefix: () => (
+				<NoticeBox siteName="CastleRoland.net">
+					Please direct all your feedback to <a style={{ color: "white" }} href="http://www.castleroland.net/">CastleRoland.net</a> directly!
+				</NoticeBox>
+			),
+			filters: [{
+				matchPath: "/",
+				mapUrl: "https://castleroland.net/stories-categories/",
+				mapContent: ($) => $("section.home_about").html()
+			}, {
+				mapUrl: ({path}) => url.resolve("https://www.castleroland.net/", path),
+				mapContent: ($) => $("section.home_about").html()
+			}]
+		},
+		"iomfats.cryto.net": {
+			prefix: () => (
+				<NoticeBox siteName="the IOMfAtS Story Shelf">
+					Please direct all your feedback to the <a style={{ color: "white" }} href="http://iomfats.org/aboutme/">friendly guy over at IOMfAtS</a>!
+				</NoticeBox>
+			),
+			filters: [{
+				matchPath: "/",
+				mapUrl: "http://iomfats.org/storyshelf/",
+				mapContent: ($) => $("div#homelinks").html()
+			}, {
+				mapUrl: ({path}) => url.resolve("http://iomfats.org/", path),
+				mapContent: ($) => $("div#content").html()
+			}]
+		}
+	}
+};

configuration/default.nix

@@ -1,5 +1,18 @@
 let
-	nixpkgsOptions = {};
+	nixpkgsOptions = {
+		overlays = [
+			(self: super: {
+				/* NOTE: Namespaced under `pkgs.cryto.*` to prevent naming conflicts with upstream nixpkgs */
+				cryto = {
+					# FIXME: Remove default.nix suffix?
+					fetchFromCrytoGit = self.callPackage ./lib/fetch/from-cryto-git.nix {};
+					nodeApplication = self.callPackage ./lib/node-application.nix {};
+					unpack = self.callPackage ./lib/unpack.nix {};
+					mobileProxy = self.callPackage ./packages/mobile-proxy/default.nix { configFile = null; };
+				};
+			})
+		];
+	};
 	pkgs = (import (fetchTarball "https://github.com/NixOS/nixpkgs-channels/archive/nixos-19.03.tar.gz") nixpkgsOptions);
 	pkgs1803 = (import (fetchTarball "https://github.com/NixOS/nixpkgs-channels/archive/nixos-18.03.tar.gz") nixpkgsOptions);
 	presets = {
@@ -9,6 +22,7 @@ let
 	nginxPresets = {
 		php = (import ./presets/nginx/php.nix);
 		cphpApplication = (import ./presets/nginx/cphp-application.nix);
+		reverseProxy = (import ./presets/nginx/reverse-proxy.nix);
 	};
 in {
 	network = {
@@ -30,6 +44,9 @@ in {
 			{ scheme = "http"; port = 80; path = "/"; host = "books.cryto.net"; description = "books.cryto.net is up"; }
 			{ scheme = "http"; port = 80; path = "/"; host = "learn.cryto.net"; description = "learn.cryto.net is up"; }
 			{ scheme = "http"; port = 80; path = "/"; host = "vps-list.cryto.net"; description = "vps-list.cryto.net is up"; }
+			{ scheme = "http"; port = 80; path = "/"; host = "iomfats.cryto.net"; description = "iomfats.cryto.net is up"; }
+			{ scheme = "http"; port = 80; path = "/"; host = "castleroland.cryto.net"; description = "castleroland.cryto.net is up"; }
+			{ scheme = "http"; port = 80; path = "/"; host = "awesomedude.cryto.net"; description = "awesomedude.cryto.net is up"; }
 		];
 
 		networking.firewall.allowedTCPPorts = [ 80 ];
@@ -37,6 +54,12 @@ in {
 		services.nginx = {
 			enable = true;
 			virtualHosts = {
+				"404.cryto.net" = {
+					default = true;
+					extraConfig = ''
+						return 404;
+					'';
+				};
 				"haless.cryto.net" = {
 					locations."/shadow" = {
 						alias = ./sources/shadow-generator;
@@ -101,6 +124,9 @@ in {
 						'';
 					}))
 				];
+				"iomfats.cryto.net" = nginxPresets.reverseProxy "http://127.0.0.1:3000/";
+				"castleroland.cryto.net" = nginxPresets.reverseProxy "http://127.0.0.1:3000/";
+				"awesomedude.cryto.net" = nginxPresets.reverseProxy "http://127.0.0.1:3000/";
 			};
 		};
 
@@ -135,5 +161,33 @@ in {
 				};
 			};
 		};
+
+		users.extraUsers.mobile-proxy = {
+			description = "mobile-proxy Service User";
+		};
+
+		systemd.services.mobile-proxy = let
+			package = pkgs.cryto.mobileProxy.override { configFile = ./data/mobile-proxy/config.jsx; };
+		in {
+			description = "Mobile Proxy";
+			wantedBy = ["multi-user.target"];
+			after = ["network.target"];
+
+			serviceConfig = {
+				ExecStart = "${package}/bin/mobile-proxy";
+				User = "mobile-proxy";
+				Restart = "on-failure";
+				PermissionsStartOnly = true;
+			};
+
+			preStart = ''
+				mkdir -m 0700 -p /tmp/mobile-proxy-home
+				chown mobile-proxy /tmp/mobile-proxy-home
+			'';
+
+			environment =  {
+				HOME = "/tmp/mobile-proxy-home";
+			};
+		};
 	};
 }

configuration/lib/fetch/from-cryto-git.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+	{owner, repo, rev, name ? ("${repo}-${rev}-src.tar.gz"), ...}@sourceArgs:
+		let
+			baseUrl = "https://git.cryto.net/${owner}/${repo}";
+		in
+			pkgs.fetchurl ({
+				inherit name;
+				url = "${baseUrl}/archive/${rev}.tar.gz";
+				meta.homepage = baseUrl;
+			} // removeAttrs sourceArgs ["owner" "repo" "rev"])

configuration/lib/node-application.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+	{ name, source }:
+		let
+			yarn2nix = (import (fetchTarball "https://github.com/joepie91/yarn2nix/archive/patch/remove-no-patch.tar.gz") { inherit pkgs; });
+		in yarn2nix.mkYarnPackage {
+			name = name;
+			src = source;
+			packageJSON = "${source}/package.json";
+			yarnLock = "${source}/yarn.lock";
+		}

configuration/packages/mobile-proxy/default.nix

@@ -0,0 +1,19 @@
+{ pkgs, configFile, ... }:
+	pkgs.cryto.nodeApplication {
+		name = "mobile-proxy";
+		source = pkgs.stdenv.mkDerivation {
+			name = "mobile-proxy-application";
+			src = pkgs.cryto.fetchFromCrytoGit {
+				owner = "joepie91";
+				repo = "mobile-proxy";
+				rev = "1628f4be61621c1783e93ef6719b1dae4f352be8";
+				sha256 = "1d9zc3phflsi2gsi7hmzybr0q983x7155bildvlbc7za3y8hry78";
+			};
+
+			buildCommand = ''
+				mkdir -p $out
+				tar -xzvf $src -C $out
+				cp ${configFile} $out/config.jsx
+			'';
+		};
+	}

configuration/presets/nginx/reverse-proxy.nix

@@ -0,0 +1,9 @@
+destination: {
+	locations."/" = {
+		proxyPass = destination;
+		proxyWebsockets = true;
+		extraConfig = ''
+			proxy_set_header Host $host;
+		'';
+	};
+}