From d017568a77d677e449e66d689450532a760d6f11 Mon Sep 17 00:00:00 2001
From: Daniel Weipert <code@drogueronin.de>
Date: Mon, 13 Nov 2023 13:37:26 +0100
Subject: initial commit

---
 .gitignore         |  3 ++
 .htaccess          |  9 ++++++
 Dockerfile         | 15 ++++++++++
 composer.json      | 24 ++++++++++++++++
 composer.lock      | 47 +++++++++++++++++++++++++++++++
 docker-compose.yml |  5 ++++
 index.php          | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 test/router.php    |  3 ++
 8 files changed, 189 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .htaccess
 create mode 100644 Dockerfile
 create mode 100644 composer.json
 create mode 100644 composer.lock
 create mode 100644 docker-compose.yml
 create mode 100644 index.php
 create mode 100644 test/router.php

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2879d3b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/vendor/
+
+.env
diff --git a/.htaccess b/.htaccess
new file mode 100644
index 0000000..d025b2b
--- /dev/null
+++ b/.htaccess
@@ -0,0 +1,9 @@
+RewriteEngine On
+# Redirect /index.php to / (optional, but recommended I guess)
+RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /.*index\.php
+RewriteRule ^index.php/?(.*)$ $1 [R=301,L]
+
+# Run everything else but real files through index.php
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteRule ^(.*)$ index.php/$1?%{QUERY_STRING} [L]
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..bdb70e1
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,15 @@
+FROM php:apache
+
+COPY --from=composer /usr/bin/composer /usr/bin/composer
+
+WORKDIR /var/www/html
+
+RUN apt-get update && apt-get -y install git
+
+COPY composer* .
+RUN composer install
+
+RUN a2enmod rewrite
+
+COPY index.php .
+COPY .htaccess .
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..4393981
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,24 @@
+{
+    "name": "dweipert/gemini-http-proxy",
+    "authors": [
+        {
+            "name": "Daniel Weipert",
+            "email": "code@drogueronin.de"
+        }
+    ],
+    "require": {
+        "dweipert/gemini-foundation": "dev-main"
+    },
+    "repositories": [
+        {
+            "type": "vcs",
+            "url": "https://git.dweipert.de/gemini-foundation"
+        }
+    ],
+    "minimum-stability": "dev",
+    "autoload": {
+        "psr-4": {
+            "Dweipert\\GeminiHttpProxy\\": "src/"
+        }
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000..c6f6310
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,47 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "5402a4c52a05baa8de485a52ec6532cc",
+    "packages": [
+        {
+            "name": "dweipert/gemini-foundation",
+            "version": "dev-main",
+            "source": {
+                "type": "git",
+                "url": "https://git.dweipert.de/gemini-foundation",
+                "reference": "bc4d0071d7a0726e08b44795ff29cc1d0262dfe4"
+            },
+            "default-branch": true,
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "GeminiFoundation\\": "src/"
+                },
+                "files": [
+                    "src/functions.php"
+                ]
+            },
+            "authors": [
+                {
+                    "name": "Daniel Weipert",
+                    "email": "code@drogueronin.de"
+                }
+            ],
+            "time": "2023-11-13T12:15:40+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "dev",
+    "stability-flags": {
+        "dweipert/gemini-foundation": 20
+    },
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
+}
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..8dd6e04
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,5 @@
+services:
+  proxy:
+    build: .
+    environment:
+      - "GEMINI_HOST=${GEMINI_HOST}"
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..23c314f
--- /dev/null
+++ b/index.php
@@ -0,0 +1,83 @@
+<?php
+
+use GeminiFoundation\Client;
+use GeminiFoundation\Gemtext;
+
+require __DIR__ . '/vendor/autoload.php';
+
+$geminiHost = $_ENV['GEMINI_HOST'];
+
+$url = parse_url(
+  "//$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"
+);
+$url['query'] ??= '';
+
+$client = new Client($geminiHost);
+$response = $client->request("$url[path]$url[query]");
+
+ob_start();
+$mime = explode(';', $response->getMeta())[0];
+if (strpos($mime, 'text/gemini') === 0) {
+  $parser = new Gemtext($response->getBody());
+  $lines = $parser->parse();
+
+  $wasListItem = false;
+  $currentListItems = [];
+  foreach ($lines as $line) {
+    if ($wasListItem && $line['type'] !== 'listitem') {
+      echo "<ul>";
+      foreach ($currentListItems as $listItem) {
+        echo "<li>$listItem[text]</li>";
+      }
+      echo "</ul>";
+      $wasListItem = false;
+      $currentListItems = [];
+    }
+
+    if ($line['type'] === 'preformatted_on') {
+      echo "<div>$line[alt]</div><pre>";
+    }
+    else if ($line['type'] === 'preformatted') {
+      echo htmlentities($line['raw']);
+    }
+    else if ($line['type'] === 'preformatted_off') {
+      echo "</pre>";
+    }
+    else if ($line['type'] === 'heading') {
+      echo "<h$line[size]>$line[text]</h$line[size]>";
+    }
+    else if ($line['type'] === 'listitem') {
+      $currentListItems[] = $line;
+      $wasListItem = true;
+    }
+    else if ($line['type'] === 'quote') {
+      echo "<blockquote>$line[text]</blockquote>";
+    }
+    else if ($line['type'] === 'link') {
+      $line['link'] = str_replace(["gemini://$geminiHost", $geminiHost], "https://$geminiHost", $line['link']);
+      $line['text'] = $line['text'] ?: $line['link'];
+      echo "<a href=\"$line[link]\">$line[text]</a>";
+    }
+    else if ($line['type'] === 'text') {
+      echo "<p>$line[text]</p>";
+    }
+  }
+}
+
+else if (strpos($mime, 'image') === 0) {
+  echo "<img src=\"data:{$mime};base64," . base64_encode($response->getBody()) . "\">";
+}
+
+echo "<hr>";
+echo "Proxied from <a href=\"gemini://$geminiHost$url[path]$url[query]\">gemini://$geminiHost$url[path]$url[query]</a>";
+$content = ob_get_clean();
+
+?>
+<!doctype html>
+<html>
+  <head>
+  </head>
+  <body>
+  <?php echo $content; ?>
+  </body>
+</html>
diff --git a/test/router.php b/test/router.php
new file mode 100644
index 0000000..cead5ee
--- /dev/null
+++ b/test/router.php
@@ -0,0 +1,3 @@
+<?php
+
+include dirname(__DIR__) . '/index.php';
-- 
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