From 8a6897e3fd2efceacf8d020dfbf8b742a68f96cd Mon Sep 17 00:00:00 2001
From: Jonas Kohl <gitlab@jonaskohl.de>
Date: Fri, 19 Jul 2024 17:20:26 +0200
Subject: Add development server and refactor building

---
 Makefile       |  7 ++++++-
 common.php     | 29 ++++++++++++++++++++++++++++
 dev-server.php | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 expand.php     | 21 ++------------------
 4 files changed, 97 insertions(+), 20 deletions(-)
 create mode 100644 common.php
 create mode 100644 dev-server.php

diff --git a/Makefile b/Makefile
index 83fe1ae..ae56b92 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 SRCFILES:=$(shell find src/pages/ -type f -name '*.php')
 HTMLTARGETS:=$(SRCFILES:src/pages/%.php=build/%.html)
 
-.PHONY: build/static publish
+.PHONY: build/static publish dev-server
 
 all: $(HTMLTARGETS) $(STATICFILES) build/static
 
@@ -22,3 +22,8 @@ publish-http:
 	rsync -avh ./build/ hozyro-srv:/var/www/hozyro --delete
 
 publish-all: publish publish-http
+
+dev-server:
+	@bash -c 'echo -e "\e[91mWARNING: This server should only be used for \
+	development purposes! IT IS NOT PRODUCTION-SAFE! USE WITH CAUTION!\e[0m"'
+	php -S 127.0.0.1:19310 dev-server.php
diff --git a/common.php b/common.php
new file mode 100644
index 0000000..c505660
--- /dev/null
+++ b/common.php
@@ -0,0 +1,29 @@
+<?php
+
+define("SRCDIR", realpath(__DIR__ . "/src/"));
+
+function hzcom_expand(string $__page): string {
+    $title = "";
+    $__page = preg_replace_callback(
+        ';<title>(.*?)</title>;i',
+        function(array $matches) use(&$title): string {
+            $title = $matches[1];
+            return "";
+        },
+        $__page
+    );
+    $page = SRCDIR . "/pages/" . bin2hex(random_bytes(8)) . ".tmp";
+    file_put_contents($page, $__page);
+    unset($__page);
+
+    ob_start();
+    include SRCDIR . "/template.php";
+    $output = ob_get_clean();
+    if ($output === false)
+        $output = "";
+
+    if (is_file($page))
+        unlink($page);
+
+    return $output;
+}
diff --git a/dev-server.php b/dev-server.php
new file mode 100644
index 0000000..dea55ab
--- /dev/null
+++ b/dev-server.php
@@ -0,0 +1,60 @@
+<?php
+
+require_once __DIR__ . "/common.php";
+
+const TEMPLATE_DIR = SRCDIR . "/pages/";
+const STATIC_DIR = SRCDIR . "/static/";
+const FALLBACK_FILE = TEMPLATE_DIR . "not_found.php";
+const DEFAULT_FILE = TEMPLATE_DIR . "index.php";
+const DEFAULT_MIME_TYPE = "application/octet-stream";
+
+function get_mime(string $filename): string {
+    static $mime_overrides = [
+        "css" => "text/css",
+        "js" => "text/javascript",
+    ];
+    $ext = pathinfo($filename, PATHINFO_EXTENSION);
+    $ext = strtolower($ext);
+    $mime = $mime_overrides[$ext] ?? mime_content_type($filename);
+    if ($mime === false)
+        $mime = DEFAULT_MIME_TYPE;
+    return $mime;
+}
+
+$name = $_SERVER["REQUEST_URI"];
+$is_static = false;
+
+$name = ltrim($name, "/");
+if (str_starts_with($name, "static/"))
+    $is_static = true;
+elseif (str_ends_with($name, ".html"))
+    $name = preg_replace('/\.html$/', "", $name);
+
+$include_file = FALLBACK_FILE;
+
+if ($is_static) {
+    $staticFile = STATIC_DIR . preg_replace(';^static/;', "", $name);
+    if (!is_file($staticFile)) {
+        $include_file = FALLBACK_FILE;
+        http_response_code(404);
+    } else {
+        $content_type = get_mime($staticFile);
+        $content_length = filesize($staticFile);
+        header("Content-Type: $content_type");
+        header("Content-Length: $content_length");
+        readfile($staticFile);
+        exit;
+    }
+} else {
+    if ($name === "")
+        $include_file = DEFAULT_FILE;
+    else
+        $include_file = TEMPLATE_DIR . $name . ".php";
+}
+
+if (!is_file($include_file)) {
+    $include_file = FALLBACK_FILE;
+    http_response_code(404);
+}
+
+echo hzcom_expand(file_get_contents($include_file));
diff --git a/expand.php b/expand.php
index fb83625..bbe1a3b 100644
--- a/expand.php
+++ b/expand.php
@@ -1,21 +1,4 @@
 <?php
 
-define("SRCDIR", realpath(__DIR__ . "/src/"));
-
-$__page = file_get_contents("php://stdin");
-$title = "";
-$__page = preg_replace_callback(
-    ';<title>(.*?)</title>;i',
-    function(array $matches) use(&$title): string {
-        $title = $matches[1];
-        return "";
-    },
-    $__page
-);
-$page = SRCDIR . "/pages/" . bin2hex(random_bytes(8)) . ".tmp";
-file_put_contents($page, $__page);
-unset($__page);
-
-include SRCDIR . "/template.php";
-
-unlink($page);
+require_once __DIR__ . "/common.php";
+echo hzcom_expand(file_get_contents("php://stdin"));
-- 
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