Update dependencies

Implement 'status' command

.gitignore

@@ -1,4 +1,3 @@
 /build/
 /data/
 /vendor/
-/composer.lock

.php_cs

@@ -0,0 +1,15 @@
+<?php
+
+return Symfony\CS\Config\Config::create()
+    ->level(Symfony\CS\FixerInterface::NONE_LEVEL)
+    ->fixers([
+        "psr2",
+        "-braces",
+        "-psr0",
+    ])
+    ->finder(
+        Symfony\CS\Finder\DefaultFinder::create()
+            ->in(__DIR__ . "/bin")
+            ->in(__DIR__ . "/src")
+            ->in(__DIR__ . "/test")
+    );

.travis.yml

@@ -0,0 +1,28 @@
+language: php
+
+php:
+  - 5.5
+  - 5.6
+  - 7.0
+  - nightly
+
+cache:
+  directories:
+    - vendor
+
+install:
+  - phpenv config-rm xdebug.ini
+  - composer self-update
+  - composer config --global discard-changes true
+  - if [[ ${TRAVIS_PHP_VERSION:0:3} == "5.5" ]]; then composer require --dev --no-update phpunit/phpunit ^4; fi
+  - composer require satooshi/php-coveralls dev-master --dev --no-update
+  - composer update --ignore-platform-reqs
+  - composer show --installed
+
+script:
+  - find -name "*.php" -not -path "./vendor/*" -print0 | xargs -n 1 -0 php -l
+  - $(php -r 'if (PHP_MAJOR_VERSION >= 7) echo "phpdbg -qrr"; else echo "php";') vendor/bin/phpunit --coverage-text --coverage-clover build/logs/clover.xml
+  - php vendor/bin/php-cs-fixer --diff --dry-run -v fix
+
+after_script:
+  - php vendor/bin/coveralls -v

README.md

@@ -1,113 +1,14 @@
-# acme
+![`kelunik/acme-client`](./res/logo.png)
 
-![unstable](https://img.shields.io/badge/api-unstable-orange.svg?style=flat-square)
-![MIT license](https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)
+`kelunik/acme-client` is an ACME client written in PHP. ACME is the protocol that powers the [Let's Encrypt](https://letsencrypt.org) certificate authority.
 
-`kelunik/acme-client` is a standalone ACME client written in PHP.
-It's an alternative for the [official client](https://github.com/letsencrypt/letsencrypt) which is written in python.
+## Requirements
 
-> **Warning**: This software is under development. Use at your own risk.
+ * PHP 5.5+ with OpenSSL
+ * Works on Unix and Windows
 
-## Installation
+## Documentation
 
-**Requirements**
-
-* PHP 5.5+
-* Composer
-
-**Instructions**
-
-```bash
-# Clone repository
-git clone https://github.com/kelunik/acme-client && cd acme-client
-
-# Checkout latest release
-git checkout $(git describe --tags `git rev-list --tags --max-count=1`)
-
-# Install dependencies
-composer install --no-dev
-```
-
-## Migration from 0.1.x to 0.2.x
-
-```bash
-# Start in ./data
-cd data
-
-# Move your account key to new location:
-
-mkdir accounts
-mv account/key.pem accounts/acme-v01.api.letsencrypt.org.directory.pem
-# or accounts/acme-staging.api.letsencrypt.org.directory.pem if it's a staging key
-
-# account should now be empty or contain just a config.json, you can delete the folder then
-rm -rf account
-
-# Migrate certificates to new location:
-
-cd certs
-mkdir acme-v01.api.letsencrypt.org.directory
-
-# Move all your certificate directories
-# Repeat for all directories!
-mv example.com acme-v01.api.letsencrypt.org.directory
-# or acme-staging.api.letsencrypt.org.directory
-
-# Delete all config.json files which may exist
-find -name "config.json" | xargs rm
-
-# Update to current version
-git checkout master && git pull
-
-# Check out latest release
-git checkout $(git describe --tags `git rev-list --tags --max-count=1`)
-
-# Update dependencies
-composer update --no-dev
-
-# Reconfigure your webserver to use the new paths
-# and check (and fix) your automation commands.
-```
-
-## Usage
-
-> **Note**: This client stores all data in `./data`, be sure to backup this folder regularly.
-> It contains your account keys, domain keys and certificates.
-
-Before you can issue certificates, you have to register an account first and read and understand the terms of service of the ACME CA you're using.
-For Let's Encrypt there's a [subscriber agreement](https://letsencrypt.org/repository/) you have to accept.
-
-By using this client you agree to any agreement and any further updates by continued usage.
-You're responsible to react to updates and stop the automation if you no longer agree with the terms of service.
-
-```
-bin/acme setup -s letsencrypt --email me@example.com
-```
-
-`-s` / `--server` can either be a URI or a shortcut. Available shortcuts:
- * `letsencrypt` / `letsencrypt:production`
- * `letsencrypt:staging`
-
-After a successful registration you're able to issue certificates.
-This client assumes you have a HTTP server setup and running.
-You must have a document root setup in order to use this client.
-
-```
-bin/acme issue -s letsencrypt -d example.com:www.example.com -p /var/www/example.com
-```
-
-To revoke a certificate, you need a valid account key currently, just like for issuance.
-
-```
-bin/acme revoke --name example.com
-```
-
-For renewal, there's the `bin/acme check` subcommand.
-It exists with a non-zero exit code, if the certificate is going to expire soon.
-Default check time is 30 days, but you can use `--ttl` to customize it.
-
-You may use this as daily cron:
-
-```
-bin/acme check --name example.com --ttl 30 -s letsencrypt || bin/acme issue ...
-```
+ * [Installation](./doc/installation.md)
+ * [Usage](./doc/usage.md)
+ * [Migration guide for 0.1.x → 0.2.x](./doc/migrations/0.2.0.md)

bin/acme

@@ -2,22 +2,22 @@
 <?php
 
 use Auryn\Injector;
-use Bramus\Monolog\Formatter\ColoredLineFormatter;
-use Kelunik\AcmeClient\LoggerColorScheme;
+use Kelunik\AcmeClient\AcmeFactory;
 use League\CLImate\CLImate;
-use Monolog\Handler\StreamHandler;
-use Monolog\Logger;
-use Psr\Log\LoggerInterface;
+
+$logo = <<<LOGO
+    ____ __________ ___  ___
+   / __ `/ ___/ __ `__ \/ _ \
+  / /_/ / /__/ / / / / /  __/
+  \__,_/\___/_/ /_/ /_/\___/
+
+LOGO;
 
 if (!file_exists(__DIR__ . "/../vendor/autoload.php")) {
+    echo $logo;
     echo <<<HELP
 
-      ____ __________ ___  ___
-     / __ `/ ___/ __ `__ \/ _ \
-    / /_/ / /__/ / / / / /  __/
-    \__,_/\___/_/ /_/ /_/\___/
-
-    You need to install the composer dependencies.
+  You need to install the composer dependencies.
 
     composer install --no-dev
 
@@ -26,58 +26,75 @@ HELP;
     exit(-1);
 }
 
+if (!function_exists("openssl_pkey_get_private")) {
+    echo $logo;
+    echo <<<HELP
+
+  You need to enable OpenSSL in your php.ini
+
+
+HELP;
+    exit(-2);
+}
+
 require __DIR__ . "/../vendor/autoload.php";
 
 $commands = [
-    "setup",
-    "issue",
-    "check",
-    "revoke",
+    "setup" => "Setup and register account.",
+    "issue" => "Issue a new certificate.",
+    "check" => "Check if a certificate is still valid long enough.",
+    "revoke" => "Revoke a certificate.",
+    "status" => "Show status about local certificates.",
+    "version" => "Print version information.",
+    "help" => "Print this help information.",
 ];
 
-$help = implode("\n    ", array_map(function($command) {
-    return "bin/acme {$command}";
-}, $commands));
+$binary = \Kelunik\AcmeClient\getBinary();
+
+$help = implode(PHP_EOL, array_map(function ($command) use ($commands) {
+    $help = "  <green>{$command}</green>\n";
+    $help .= "  └─ {$commands[$command]}\n";
+    return $help;
+}, array_keys($commands)));
 
 $help = <<<EOT
 
-      ____ __________ ___  ___
-     / __ `/ ___/ __ `__ \/ _ \
-    / /_/ / /__/ / / / / /  __/
-    \__,_/\___/_/ /_/ /_/\___/
+<yellow>Usage:</yellow>
+  bin/acme [command] [--args]
 
-    Usage: bin/acme command --args
-
-    Available Commands:
-    {$help}
-
-    Get more help by appending --help to specific commands.
+<yellow>Options:</yellow>
+  <green>-h, --help</green>
+  └─ Print this help information.
 
+<yellow>Available commands:</yellow>
+{$help}
+Get more help by appending <yellow>--help</yellow> to specific commands.
 
 EOT;
 
 $climate = new CLImate;
-$injector = new Injector;
 
 if (!in_array(PHP_SAPI, ["cli", "phpdbg"], true)) {
-    $climate->error("Please run this script via CLI!");
+    $climate->error("Please run this script on the command line!");
     exit(1);
 }
 
-if (count($argv) === 1 || in_array($argv[1], ["h", "-h", "help", "--help"], true)) {
-    print $help;
+if (count($argv) === 1 || in_array($argv[1], ["-h", "help", "--help"], true)) {
+    $climate->out($logo . $help);
     exit(0);
 }
 
-if (!in_array($argv[1], $commands)) {
+if (!in_array($argv[1], array_keys($commands))) {
     $climate->error("Unknown command '{$argv[1]}'. Use --help for a list of available commands.");
 
-    $suggestion = \Kelunik\AcmeClient\suggestCommand($argv[1], $commands);
+    $suggestion = \Kelunik\AcmeClient\suggestCommand($argv[1], array_keys($commands));
 
     if ($suggestion) {
-        $climate->br()->info("    Did you mean '$suggestion'?")->br();
+        $climate->br()->out("  Did you mean '$suggestion'?");
     }
 
+    $climate->br();
+
     exit(1);
 }
 
@@ -90,31 +107,33 @@ try {
     unset($args[1]);
 
     $climate->arguments->add($definition);
-    $climate->arguments->parse(array_values($args));
-} catch (Exception $e) {
-    if (count($argv) === 3 && in_array($argv[2], ["h", "-h", "--help", "help"], true)) {
-        $climate->usage(["bin/acme {$argv[1]}"]);
+
+    if (count($argv) === 3 && in_array($argv[2], ["-h", "--help"], true)) {
+        $climate->usage(["{$binary} {$argv[1]}"]);
         $climate->br();
+
         exit(0);
     } else {
-        $climate->error($e->getMessage());
-        exit(1);
+        $climate->arguments->parse(array_values($args));
     }
+} catch (Exception $e) {
+    $climate->usage(["{$binary} {$argv[1]}"]);
+    $climate->br();
+
+    $climate->error($e->getMessage());
+    $climate->br();
+
+    exit(1);
 }
 
-$handler = new StreamHandler("php://stdout", Logger::DEBUG);
-$handler->setFormatter(new ColoredLineFormatter(new LoggerColorScheme, null, null, true, true));
-
-$logger = new Logger("ACME");
-$logger->pushHandler($handler);
-
-$injector->alias(LoggerInterface::class, Logger::class);
-$injector->share($logger);
+$injector = new Injector;
+$injector->share($climate);
+$injector->share(new AcmeFactory);
 
 $command = $injector->make($class);
 
-Amp\run(function () use ($command, $climate, $logger) {
-    $handler = function($e) use ($logger) {
+Amp\run(function () use ($command, $climate) {
+    $handler = function ($e) use ($climate) {
         $error = (string) $e;
         $lines = explode("\n", $error);
         $lines = array_filter($lines, function ($line) {
@@ -122,14 +141,20 @@ Amp\run(function () use ($command, $climate, $logger) {
         });
 
         foreach ($lines as $line) {
-            $logger->error($line);
+            $climate->error($line)->br();
         }
 
         exit(1);
     };
 
     try {
-        yield $command->execute($climate->arguments);
+        $exitCode = (yield $command->execute($climate->arguments));
+
+        if ($exitCode === null) {
+            exit(0);
+        }
+
+        exit($exitCode);
     } catch (Throwable $e) {
         $handler($e);
     } catch (Exception $e) {

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "kelunik/acme-client",
-    "description": "Standalone PHP ACME client.",
+    "description": "Let's Encrypt / ACME client written in PHP for the CLI.",
     "keywords": [
         "ACME",
         "letsencrypt",
@@ -11,17 +11,20 @@
         "tls"
     ],
     "require": {
-        "amphp/process": "^0.1.1",
-        "bramus/monolog-colored-line-formatter": "^2",
+        "php": "^5.5|^7",
         "ext-openssl": "*",
+        "amphp/process": "^0.1.1",
         "kelunik/acme": "^0.3",
         "kelunik/certificate": "^1",
         "league/climate": "^3",
-        "monolog/monolog": "^1.17",
-        "php": "^5.5|^7",
-        "psr/log": "^1",
         "rdlowrey/auryn": "^1",
-        "webmozart/assert": "^1"
+        "webmozart/assert": "^1",
+        "symfony/yaml": "^3.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^5",
+        "fabpot/php-cs-fixer": "^1.9",
+        "macfja/phar-builder": "dev-events-dev-files"
     },
     "license": "MIT",
     "authors": [
@@ -40,17 +43,30 @@
             "src/functions.php"
         ]
     },
-    "require-dev": {
-        "phpunit/phpunit": "^5",
-        "macfja/phar-builder": "^0.2.3"
-    },
+    "repositories": [
+        {
+            "type": "vcs",
+            "url": "https://github.com/kelunik/pharbuilder"
+        }
+    ],
     "extra": {
         "phar-builder": {
             "compression": "GZip",
-            "name": "acme.phar",
+            "name": "acme-client.phar",
             "output-dir": "build",
-            "include": ["bin", "src", "vendor"],
-            "entry-point": "bin/acme"
+            "include": ["info", "src", "vendor/kelunik/acme/res", "vendor/amphp/socket/var"],
+            "entry-point": "bin/acme",
+            "events": {
+                "command.package.start": [
+                    "mkdir -p info",
+                    "git describe --tags > info/build.version",
+                    "php -r 'echo time();' > info/build.time"
+                ],
+                "command.package.end": [
+                    "rm -rf info",
+                    "chmod +x build/acme-client.phar"
+                ]
+            }
         }
     }
 }

doc/installation.md

@@ -0,0 +1,66 @@
+# Installation
+
+## Installation using Phar
+
+This is the preferred installation method for usage on a production system.
+
+### Requirements
+
+* PHP 5.5+
+
+### Instructions
+
+```bash
+# Go to https://github.com/kelunik/acme-client/releases/latest
+# Download the latest release archive.
+
+# Make it executable.
+chmod +x acme-client.phar
+
+# Run it.
+./acme-client.phar
+
+# Or install it globally.
+mv ./acme-client.phar /usr/local/bin/acme-client
+acme-client
+```
+
+If you want to update, just replace the old `.phar` with a new one.
+
+All commands require a `--storage` argument when using the Phar. That's the path where your keys and certificates will be stored.
+On Unix you could use something like `--storage /etc/acme`.
+
+You can add a file named `acme-client.yml` next to the `.phar` with the two keys `storage` and `server`.
+These values will be used as default if you don't specify them, but you can still use another server by explicitly adding it as argument.
+
+```yml
+# Sample YAML configuration.
+
+# Storage directory for certificates and keys.
+storage: /etc/acme
+
+# Server to use. Available shortcuts: letsencrypt, letsencrypt:staging
+# You can also use full URLs to the directory resource of an ACME server
+server: letsencrypt
+```
+
+## Installation using Composer
+
+If you plan to actively develop this client, you probably don't want the Phar but install the dependencies using Composer.
+
+### Requirements
+
+* PHP 5.5+
+* [Composer](https://getcomposer.org/)
+
+### Instructions
+
+```bash
+# Clone repository
+git clone https://github.com/kelunik/acme-client && cd acme-client
+
+# Install dependencies
+composer install
+```
+
+You can use `./bin/acme` as script instead of the Phar. Please note, that all data will be stored in `./data` as long as you don't provide the `--storage` argument.

doc/migrations/0.2.0.md

@@ -0,0 +1,43 @@
+# Migration from 0.1.x to 0.2.x
+
+If you used this client before `0.2.0`, you have a different directory structure than the current one. If you want to upgrade, but keep all your data, here's a migration guide.
+
+```bash
+# Start in ./data
+cd data
+
+# Move your account key to new location:
+
+mkdir accounts
+mv account/key.pem accounts/acme-v01.api.letsencrypt.org.directory.pem
+# or accounts/acme-staging.api.letsencrypt.org.directory.pem if it's a staging key
+
+# account should now be empty or contain just a config.json, you can delete the folder then
+rm -rf account
+
+# Migrate certificates to new location:
+
+cd certs
+mkdir acme-v01.api.letsencrypt.org.directory
+
+# Move all your certificate directories
+# Repeat for all directories!
+mv example.com acme-v01.api.letsencrypt.org.directory
+# or acme-staging.api.letsencrypt.org.directory
+
+# Delete all config.json files which may exist
+find -name "config.json" | xargs rm
+
+# Update to current version
+# Alternatively have a look at the new installation instructions and use the Phar
+git checkout master && git pull
+
+# Check out latest release
+git checkout $(git describe --tags `git rev-list --tags --max-count=1`)
+
+# Update dependencies
+composer update --no-dev
+
+# Reconfigure your webserver to use the new paths
+# and check (and fix) your automation commands.
+```

doc/usage.md

@@ -0,0 +1,79 @@
+# Usage
+
+**The client stores all data in `./data` if you're using the Composer installation method, otherwise in the directory you configured. Be sure to backup this folder regularly. It contains your account keys, domain keys and certificates.**
+
+Before you can issue certificates, you have to register an account first and read and understand the terms of service of the ACME CA you're using.
+For the Let's Encrypt certificate authority, there's a [subscriber agreement](https://letsencrypt.org/repository/) you have to accept.
+
+By using this client you agree to any agreement and any further updates by continued usage.
+You're responsible to react to updates and stop the automation if you no longer agree with the terms of service.
+
+These usage instructions assume you have installed the client globally as a Phar. If you are using the Phar, but don't have it globally, replace `acme-client` with the location to your Phar.
+
+If you're using the client with Composer, replace `acme-client` with `bin/acme`. You have to specify the server with `-s` / `--server`, because there's currently no config file support for this installation method.
+
+## Register an Account
+
+```
+acme-client setup --email me@example.com
+```
+
+After a successful registration you're able to issue certificates.
+This client assumes you have a HTTP server setup and running.
+You must have a document root setup in order to use this client.
+
+## Issue a Certificate
+
+```
+acme-client issue -d example.com:www.example.com -p /var/www/example.com
+```
+
+You can separate multiple domains (`-d`) with `,`, `:` or `;`. You can separate multiple document roots (`-p`) with your system's path separator:
+ * Colon (`:`) for Unix
+ * Semicolon (`;`) for Windows
+
+If you specify less paths than domains, the last one will be used for the remaining domains.
+
+Please note that Let's Encrypt has rate limits. Currently it's five certificates per domain per seven days. If you combine multiple subdomains in a single certificate, they count as just one certificate. If you just want to test things out, you can use their staging server, which has way higher rate limits by appending `--s letsencrypt:staging`.
+
+## Revoke a Certificate
+
+To revoke a certificate, you need a valid account key, just like for issuance.
+
+```
+acme-client revoke --name example.com
+```
+
+`--name` is the common name of the certificate that you want to revoke.
+
+## Renewing a Certificate
+
+For renewal, there's the `acme-client check` subcommand.
+It exists with a non-zero exit code, if the certificate is going to expire soon.
+Default check time is 30 days, but you can use `--ttl` to customize it.
+
+You may use this as daily cron:
+
+```
+acme-client check --name example.com || acme-client issue ...
+```
+
+You can also use a more advanced script to automatically reload the server as well. For this example we assume you're using Nginx. Something similar should work for Apache.
+
+```bash
+#!/usr/bin/env bash
+
+acme-client check --name example.com --ttl 30
+
+if [ $? -eq 1 ]; then
+        acme-client issue -d example.com:www.example.com -p /var/www
+
+        if [ $? -eq 0 ]; then
+                nginx -t -q
+
+                if [ $? -eq 0 ]; then
+                        nginx -s reload
+                fi
+        fi
+fi
+```

src/AcmeFactory.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Kelunik\AcmeClient;
+
+use Kelunik\Acme\AcmeClient;
+use Kelunik\Acme\AcmeService;
+use Kelunik\Acme\KeyPair;
+use Webmozart\Assert\Assert;
+
+class AcmeFactory {
+    public function build($directory, KeyPair $keyPair) {
+        Assert::string($directory);
+
+        return new AcmeService(new AcmeClient($directory, $keyPair));
+    }
+}

src/Commands/Check.php

@@ -2,16 +2,18 @@
 
 namespace Kelunik\AcmeClient\Commands;
 
+use Amp\CoroutineResult;
 use Kelunik\AcmeClient\Stores\CertificateStore;
+use Kelunik\AcmeClient\Stores\CertificateStoreException;
 use Kelunik\Certificate\Certificate;
 use League\CLImate\Argument\Manager;
-use Psr\Log\LoggerInterface;
+use League\CLImate\CLImate;
 
 class Check implements Command {
-    private $logger;
+    private $climate;
 
-    public function __construct(LoggerInterface $logger) {
-        $this->logger = $logger;
+    public function __construct(CLImate $climate) {
+        $this->climate = $climate;
     }
 
     public function execute(Manager $args) {
@@ -26,31 +28,37 @@ class Check implements Command {
         $server = \Kelunik\AcmeClient\resolveServer($args->get("server"));
         $server = \Kelunik\AcmeClient\serverToKeyname($server);
 
-        $path = dirname(dirname(__DIR__)) . "/data/certs/" . $server;
+        $path = \Kelunik\AcmeClient\normalizePath($args->get("storage")) . "/certs/" . $server;
         $certificateStore = new CertificateStore($path);
 
-        $pem = (yield $certificateStore->get($args->get("name")));
-        $cert = new Certificate($pem);
+        try {
+            $pem = (yield $certificateStore->get($args->get("name")));
+        } catch (CertificateStoreException $e) {
+            $this->climate->br()->error("    Certificate not found.")->br();
 
-        $this->logger->info("Certificate is valid until " . date("d.m.Y", $cert->getValidTo()));
-
-        if ($cert->getValidTo() > time() + $args->get("ttl") * 24 * 60 * 60) {
-            exit(0);
+            yield new CoroutineResult(1);
+            return;
         }
 
-        $this->logger->warning("Certificate is going to expire within the specified " . $args->get("ttl") . " days.");
+        $cert = new Certificate($pem);
 
-        exit(1);
+        $this->climate->br();
+        $this->climate->whisper("    Certificate is valid until " . date("d.m.Y", $cert->getValidTo()))->br();
+
+        if ($cert->getValidTo() > time() + $args->get("ttl") * 24 * 60 * 60) {
+            yield new CoroutineResult(0);
+            return;
+        }
+
+        $this->climate->comment("    Certificate is going to expire within the specified " . $args->get("ttl") . " days.")->br();
+
+        yield new CoroutineResult(1);
     }
 
     public static function getDefinition() {
         return [
-            "server" => [
-                "prefix" => "s",
-                "longPrefix" => "server",
-                "description" => "",
-                "required" => true,
-            ],
+            "server" => \Kelunik\AcmeClient\getArgumentDescription("server"),
+            "storage" => \Kelunik\AcmeClient\getArgumentDescription("storage"),
             "name" => [
                 "longPrefix" => "name",
                 "description" => "Common name of the certificate to check.",

src/Commands/Issue.php

@@ -2,28 +2,30 @@
 
 namespace Kelunik\AcmeClient\Commands;
 
-use Amp\CombinatorException;
+use Amp\CoroutineResult;
 use Amp\Dns\Record;
 use Exception;
-use Kelunik\Acme\AcmeClient;
 use Kelunik\Acme\AcmeException;
 use Kelunik\Acme\AcmeService;
 use Kelunik\Acme\KeyPair;
 use Kelunik\Acme\OpenSSLKeyGenerator;
+use Kelunik\AcmeClient\AcmeFactory;
 use Kelunik\AcmeClient\Stores\CertificateStore;
 use Kelunik\AcmeClient\Stores\ChallengeStore;
 use Kelunik\AcmeClient\Stores\KeyStore;
 use Kelunik\AcmeClient\Stores\KeyStoreException;
 use League\CLImate\Argument\Manager;
-use Psr\Log\LoggerInterface;
+use League\CLImate\CLImate;
 use stdClass;
 use Throwable;
 
 class Issue implements Command {
-    private $logger;
+    private $climate;
+    private $acmeFactory;
 
-    public function __construct(LoggerInterface $logger) {
-        $this->logger = $logger;
+    public function __construct(CLImate $climate, AcmeFactory $acmeFactory) {
+        $this->climate = $climate;
+        $this->acmeFactory = $acmeFactory;
     }
 
     public function execute(Manager $args) {
@@ -45,11 +47,11 @@ class Issue implements Command {
             }
         }
 
-        $domains = array_map("trim", explode(":", str_replace(",", ":", $args->get("domains"))));
+        $domains = array_map("trim", explode(":", str_replace([",", ";"], ":", $args->get("domains"))));
         yield \Amp\resolve($this->checkDnsRecords($domains));
 
-        $docRoots = explode(":", str_replace("\\", "/", $args->get("path")));
-        $docRoots = array_map(function($root) {
+        $docRoots = explode(PATH_SEPARATOR, str_replace("\\", "/", $args->get("path")));
+        $docRoots = array_map(function ($root) {
             return rtrim($root, "/");
         }, $docRoots);
 
@@ -64,7 +66,7 @@ class Issue implements Command {
             );
         }
 
-        $keyStore = new KeyStore(dirname(dirname(__DIR__)) . "/data");
+        $keyStore = new KeyStore(\Kelunik\AcmeClient\normalizePath($args->get("storage")));
 
         $server = \Kelunik\AcmeClient\resolveServer($args->get("server"));
         $keyFile = \Kelunik\AcmeClient\serverToKeyname($server);
@@ -72,13 +74,12 @@ class Issue implements Command {
         try {
             $keyPair = (yield $keyStore->get("accounts/{$keyFile}.pem"));
         } catch (KeyStoreException $e) {
-            $this->logger->error("Account key not found, did you run 'bin/acme setup'?");
-
-            exit(1);
+            throw new AcmeException("Account key not found, did you run 'bin/acme setup'?", 0, $e);
         }
 
-        $acme = new AcmeService(new AcmeClient($server, $keyPair));
+        $this->climate->br();
 
+        $acme = $this->acmeFactory->build($server, $keyPair);
         $promises = [];
 
         foreach ($domains as $i => $domain) {
@@ -89,7 +90,7 @@ class Issue implements Command {
 
         if (!empty($errors)) {
             foreach ($errors as $error) {
-                $this->logger->error($error->getMessage());
+                $this->climate->error($error->getMessage());
             }
 
             throw new AcmeException("Issuance failed, not all challenges could be solved.");
@@ -105,16 +106,21 @@ class Issue implements Command {
             $keyPair = (yield $keyStore->put($path, $keyPair));
         }
 
-        $this->logger->info("Requesting certificate ...");
+        $this->climate->br();
+        $this->climate->whisper("    Requesting certificate ...");
 
         $location = (yield $acme->requestCertificate($keyPair, $domains));
         $certificates = (yield $acme->pollForCertificate($location));
 
-        $path = dirname(dirname(__DIR__)) . "/data/certs/" . $keyFile;
+        $path = \Kelunik\AcmeClient\normalizePath($args->get("storage")) . "/certs/" . $keyFile;
         $certificateStore = new CertificateStore($path);
         yield $certificateStore->put($certificates);
 
-        $this->logger->info("Successfully issued certificate, see {$path}/" . reset($domains));
+        $this->climate->info("    Successfully issued certificate.");
+        $this->climate->info("    See {$path}/" . reset($domains));
+        $this->climate->br();
+
+        yield new CoroutineResult(0);
     }
 
     private function solveChallenge(AcmeService $acme, KeyPair $keyPair, $domain, $path) {
@@ -132,11 +138,9 @@ class Issue implements Command {
             throw new AcmeException("Protocol violation: Invalid Token!");
         }
 
-        $this->logger->debug("Generating payload...");
         $payload = $acme->generateHttp01Payload($keyPair, $token);
 
-        $this->logger->info("Providing payload at http://{$domain}/.well-known/acme-challenge/{$token}");
-
+        $this->climate->whisper("    Providing payload at http://{$domain}/.well-known/acme-challenge/{$token}");
 
         $challengeStore = new ChallengeStore($path);
 
@@ -144,13 +148,10 @@ class Issue implements Command {
             $challengeStore->put($token, $payload, isset($user) ? $user : null);
 
             yield $acme->verifyHttp01Challenge($domain, $token, $payload);
-            $this->logger->info("Successfully self-verified challenge.");
-
             yield $acme->answerChallenge($challenge->uri, $payload);
-            $this->logger->info("Answered challenge... waiting");
-
             yield $acme->pollForChallenge($location);
-            $this->logger->info("Challenge successful. {$domain} is now authorized.");
+
+            $this->climate->comment("    {$domain} is now authorized.");
 
             yield $challengeStore->delete($token);
         } catch (Exception $e) {
@@ -177,10 +178,8 @@ class Issue implements Command {
         list($errors) = (yield \Amp\any($promises));
 
         if (!empty($errors)) {
-            throw new AcmeException("Couldn't resolve the following domains to an IPv4 record: " . implode(array_keys($errors)));
+            throw new AcmeException("Couldn't resolve the following domains to an IPv4 record: " . implode(", ", array_keys($errors)));
         }
-
-        $this->logger->info("Checked DNS records, all fine.");
     }
 
     private function findSuitableCombination(stdClass $response) {
@@ -205,22 +204,18 @@ class Issue implements Command {
 
     public static function getDefinition() {
         return [
-            "server" => [
-                "prefix" => "s",
-                "longPrefix" => "server",
-                "description" => "Server to use for issuance, see also 'bin/acme setup'.",
-                "required" => true,
-            ],
+            "server" => \Kelunik\AcmeClient\getArgumentDescription("server"),
+            "storage" => \Kelunik\AcmeClient\getArgumentDescription("storage"),
             "domains" => [
                 "prefix" => "d",
                 "longPrefix" => "domains",
-                "description" => "Colon separated list of domains to request a certificate for.",
+                "description" => "Colon / Semicolon / Comma separated list of domains to request a certificate for.",
                 "required" => true,
             ],
             "path" => [
                 "prefix" => "p",
                 "longPrefix" => "path",
-                "description" => "Colon separated list of paths to the document roots. The last one will be used for all remaining ones if fewer than the amount of domains is given.",
+                "description" => "Colon (Unix) / Semicolon (Windows) separated list of paths to the document roots. The last one will be used for all remaining ones if fewer than the amount of domains is given.",
                 "required" => true,
             ],
             "user" => [

src/Commands/Revoke.php

@@ -2,23 +2,22 @@
 
 namespace Kelunik\AcmeClient\Commands;
 
+use Amp\CoroutineResult;
 use Amp\File\FilesystemException;
-use Amp\Promise;
-use Generator;
-use Kelunik\Acme\AcmeClient;
-use Kelunik\Acme\AcmeException;
-use Kelunik\Acme\AcmeService;
+use Kelunik\AcmeClient\AcmeFactory;
 use Kelunik\AcmeClient\Stores\CertificateStore;
 use Kelunik\AcmeClient\Stores\KeyStore;
 use Kelunik\Certificate\Certificate;
 use League\CLImate\Argument\Manager;
-use Psr\Log\LoggerInterface;
+use League\CLImate\CLImate;
 
 class Revoke implements Command {
-    private $logger;
+    private $climate;
+    private $acmeFactory;
 
-    public function __construct(LoggerInterface $logger) {
-        $this->logger = $logger;
+    public function __construct(CLImate $climate, AcmeFactory $acmeFactory) {
+        $this->climate = $climate;
+        $this->acmeFactory = $acmeFactory;
     }
 
     public function execute(Manager $args) {
@@ -26,17 +25,18 @@ class Revoke implements Command {
     }
 
     private function doExecute(Manager $args) {
-        $keyStore = new KeyStore(dirname(dirname(__DIR__)) . "/data");
+        $keyStore = new KeyStore(\Kelunik\AcmeClient\normalizePath($args->get("storage")));
 
         $server = \Kelunik\AcmeClient\resolveServer($args->get("server"));
         $keyFile = \Kelunik\AcmeClient\serverToKeyname($server);
 
         $keyPair = (yield $keyStore->get("accounts/{$keyFile}.pem"));
-        $acme = new AcmeService(new AcmeClient($server, $keyPair), $keyPair);
+        $acme = $this->acmeFactory->build($server, $keyPair);
 
-        $this->logger->info("Revoking certificate ...");
+        $this->climate->br();
+        $this->climate->whisper("    Revoking certificate ...");
 
-        $path = dirname(dirname(__DIR__)) . "/data/certs/" . $keyFile . "/" . $args->get("name") . "/cert.pem";
+        $path = \Kelunik\AcmeClient\normalizePath($args->get("storage")) . "/certs/" . $keyFile . "/" . $args->get("name") . "/cert.pem";
 
         try {
             $pem = (yield \Amp\File\get($path));
@@ -46,24 +46,27 @@ class Revoke implements Command {
         }
 
         if ($cert->getValidTo() < time()) {
-            $this->logger->warning("Certificate did already expire, no need to revoke it.");
+            $this->climate->comment("    Certificate did already expire, no need to revoke it.");
         }
 
-        $this->logger->info("Certificate was valid for: " . implode(", ", $cert->getNames()));
-        yield $acme->revokeCertificate($pem);
-        $this->logger->info("Certificate has been revoked.");
+        $names = $cert->getNames();
+        $this->climate->whisper("    Certificate was valid for " . count($names) . " domains.");
+        $this->climate->whisper("     - " . implode(PHP_EOL . "     - ", $names) . PHP_EOL);
 
-        yield (new CertificateStore(dirname(dirname(__DIR__)) . "/data/certs/" . $keyFile))->delete($args->get("name"));
+        yield $acme->revokeCertificate($pem);
+
+        $this->climate->br();
+        $this->climate->info("    Certificate has been revoked.");
+
+        yield (new CertificateStore(\Kelunik\AcmeClient\normalizePath($args->get("storage")) . "/certs/" . $keyFile))->delete($args->get("name"));
+
+        yield new CoroutineResult(0);
     }
 
     public static function getDefinition() {
         return [
-            "server" => [
-                "prefix" => "s",
-                "longPrefix" => "server",
-                "description" => "",
-                "required" => true,
-            ],
+            "server" => \Kelunik\AcmeClient\getArgumentDescription("server"),
+            "storage" => \Kelunik\AcmeClient\getArgumentDescription("storage"),
             "name" => [
                 "longPrefix" => "name",
                 "description" => "Common name of the certificate to be revoked.",

src/Commands/Setup.php

@@ -2,27 +2,26 @@
 
 namespace Kelunik\AcmeClient\Commands;
 
+use Amp\CoroutineResult;
 use Amp\Dns\Record;
 use Amp\Dns\ResolutionException;
-use Amp\Promise;
-use Generator;
 use InvalidArgumentException;
-use Kelunik\Acme\AcmeClient;
 use Kelunik\Acme\AcmeException;
-use Kelunik\Acme\AcmeService;
 use Kelunik\Acme\OpenSSLKeyGenerator;
 use Kelunik\Acme\Registration;
+use Kelunik\AcmeClient\AcmeFactory;
 use Kelunik\AcmeClient\Stores\KeyStore;
 use Kelunik\AcmeClient\Stores\KeyStoreException;
 use League\CLImate\Argument\Manager;
-use Psr\Log\LoggerInterface;
-use RuntimeException;
+use League\CLImate\CLImate;
 
 class Setup implements Command {
-    private $logger;
+    private $climate;
+    private $acmeFactory;
 
-    public function __construct(LoggerInterface $logger) {
-        $this->logger = $logger;
+    public function __construct(CLImate $climate, AcmeFactory $acmeFactory) {
+        $this->climate = $climate;
+        $this->acmeFactory = $acmeFactory;
     }
 
     public function execute(Manager $args) {
@@ -39,29 +38,32 @@ class Setup implements Command {
         $path = "accounts/{$keyFile}.pem";
         $bits = 4096;
 
-        $keyStore = new KeyStore(dirname(dirname(__DIR__)) . "/data");
+        $keyStore = new KeyStore(\Kelunik\AcmeClient\normalizePath($args->get("storage")));
+
+        $this->climate->br();
 
         try {
-            $this->logger->info("Loading private key ...");
             $keyPair = (yield $keyStore->get($path));
-            $this->logger->info("Existing private key successfully loaded.");
+            $this->climate->whisper("    Using existing private key ...");
         } catch (KeyStoreException $e) {
-            $this->logger->info("No existing private key found, generating new one ...");
-            $keyPair = (new OpenSSLKeyGenerator)->generate($bits);
-            $this->logger->info("Generated new private key with {$bits} bits.");
+            $this->climate->whisper("    No private key found, generating new one ...");
 
-            $this->logger->info("Saving new private key ...");
+            $keyPair = (new OpenSSLKeyGenerator)->generate($bits);
             $keyPair = (yield $keyStore->put($path, $keyPair));
-            $this->logger->info("New private key successfully saved.");
+
+            $this->climate->whisper("    Generated new private key with {$bits} bits.");
         }
 
-        $acme = new AcmeService(new AcmeClient($server, $keyPair), $keyPair);
+        $acme = $this->acmeFactory->build($server, $keyPair);
 
-        $this->logger->info("Registering with ACME server " . substr($server, 8) . " ...");
+        $this->climate->whisper("    Registering with " . substr($server, 8) . " ...");
 
         /** @var Registration $registration */
         $registration = (yield $acme->register($email));
-        $this->logger->notice("Registration successful with the following contact information: " . implode(", ", $registration->getContact()));
+        $this->climate->info("    Registration successful. Contacts: " . implode(", ", $registration->getContact()));
+        $this->climate->br();
+
+        yield new CoroutineResult(0);
     }
 
     private function checkEmail($email) {
@@ -83,16 +85,14 @@ class Setup implements Command {
     }
 
     public static function getDefinition() {
+
+
         return [
-            "server" => [
-                "prefix" => "s",
-                "longPrefix" => "server",
-                "description" => "ACME server to use for registration and issuance of certificates.",
-                "required" => true,
-            ],
+            "server" => \Kelunik\AcmeClient\getArgumentDescription("server"),
+            "storage" => \Kelunik\AcmeClient\getArgumentDescription("storage"),
             "email" => [
                 "longPrefix" => "email",
-                "description" => "Email for important issues, will be sent to the ACME server.",
+                "description" => "E-mail for important issues, will be sent to the ACME server.",
                 "required" => true,
             ],
         ];

src/Commands/Status.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace Kelunik\AcmeClient\Commands;
+
+use Kelunik\AcmeClient\Stores\CertificateStore;
+use Kelunik\AcmeClient\Stores\KeyStore;
+use Kelunik\AcmeClient\Stores\KeyStoreException;
+use Kelunik\Certificate\Certificate;
+use League\CLImate\Argument\Manager;
+use League\CLImate\CLImate;
+
+class Status {
+    private $climate;
+
+    public function __construct(CLImate $climate) {
+        $this->climate = $climate;
+    }
+
+    public function execute(Manager $args) {
+        return \Amp\resolve($this->doExecute($args));
+    }
+
+    /**
+     * @param Manager $args
+     * @return \Generator
+     */
+    private function doExecute(Manager $args) {
+        $server = \Kelunik\AcmeClient\resolveServer($args->get("server"));
+        $keyName = \Kelunik\AcmeClient\serverToKeyname($server);
+
+        $storage = \Kelunik\AcmeClient\normalizePath($args->get("storage"));
+
+        try {
+            $keyStore = new KeyStore($storage);
+            yield $keyStore->get("accounts/{$keyName}.pem");
+
+            $setup = true;
+        } catch (KeyStoreException $e) {
+            $setup = false;
+        }
+
+        $this->climate->br();
+        $this->climate->out("  [" . ($setup ? "<green> ✓ </green>" : "<red> ✗ </red>") . "] " . ($setup ? "Registered on " : "Not yet registered on ") . $server);
+        $this->climate->br();
+
+        if (yield \Amp\File\exists($storage . "/certs/{$keyName}")) {
+            $certificateStore = new CertificateStore($storage . "/certs/{$keyName}");
+
+            $domains = (yield \Amp\File\scandir($storage . "/certs/{$keyName}"));
+
+            foreach ($domains as $domain) {
+                $pem = (yield $certificateStore->get($domain));
+                $cert = new Certificate($pem);
+
+                $symbol = time() > $cert->getValidTo() ? "<red> ✗ </red>" : "<green> ✓ </green>";
+
+                if (time() < $cert->getValidTo() && time() + $args->get("ttl") * 24 * 60 * 60 > $cert->getValidTo()) {
+                    $symbol = "<yellow> ⭮ </yellow>";
+                }
+
+                $this->climate->out("  [" . $symbol . "] " . implode(", ", $cert->getNames()));
+            }
+
+            $this->climate->br();
+        }
+    }
+
+    public static function getDefinition() {
+        return [
+            "server" => \Kelunik\AcmeClient\getArgumentDescription("server"),
+            "storage" => \Kelunik\AcmeClient\getArgumentDescription("storage"),
+            "ttl" => [
+                "longPrefix" => "ttl",
+                "description" => "Minimum valid time in days, shows ⭮ if renewal is required.",
+                "defaultValue" => 30,
+                "castTo" => "int",
+            ],
+        ];
+    }
+}

src/Commands/Version.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Kelunik\AcmeClient\Commands;
+
+use League\CLImate\Argument\Manager;
+use League\CLImate\CLImate;
+use RuntimeException;
+
+class Version implements Command {
+    private $climate;
+
+    public function __construct(CLImate $climate) {
+        $this->climate = $climate;
+    }
+
+    public function execute(Manager $args) {
+        $version = $this->getVersion();
+
+        $buildTime = $this->readFileOr("info/build.time", time());
+        $buildDate = date('M jS Y H:i:s T', (int) trim($buildTime));
+
+        $package = json_decode($this->readFileOr("composer.json", new RuntimeException("No composer.json found.")));
+
+        $this->climate->out("┌ <green>kelunik/acme-client</green> @ <yellow>{$version}</yellow> (built: {$buildDate})");
+        $this->climate->out(($args->defined("deps") ? "│" : "└") . " " . $this->getDescription($package));
+
+        if ($args->defined("deps")) {
+            $lockFile = json_decode($this->readFileOr("composer.lock", new RuntimeException("No composer.lock found.")));
+            $packages = $lockFile->packages;
+
+            for ($i = 0; $i < count($packages); $i++) {
+                $link = $i === count($packages) - 1 ? "└──" : "├──";
+                $this->climate->out("{$link} <green>{$packages[$i]->name}</green> @ <yellow>{$packages[$i]->version}</yellow>");
+
+                $link = $i === count($packages) - 1 ? "   " : "│  ";
+                $this->climate->out("{$link} " . $this->getDescription($packages[$i]));
+            }
+        }
+    }
+
+    private function getDescription($package) {
+        return \Kelunik\AcmeClient\ellipsis(isset($package->description) ? $package->description : "");
+    }
+
+    private function getVersion() {
+        if (file_exists(__DIR__ . "/../../.git")) {
+            $version = `git describe --tags`;
+        } else {
+            $version = $this->readFileOr("info/build.version", "-unknown");
+        }
+
+        return substr(trim($version), 1);
+    }
+
+    private function readFileOr($file, $default = "") {
+        if (file_exists(__DIR__ . "/../../" . $file)) {
+            return file_get_contents(__DIR__ . "/../../" . $file);
+        } else {
+            if ($default instanceof \Exception || $default instanceof \Throwable) {
+                throw $default;
+            }
+
+            return $default;
+        }
+    }
+
+    public static function getDefinition() {
+        return [
+            "deps" => [
+                "longPrefix" => "deps",
+                "description" => "Show also the bundled dependency versions.",
+                "noValue" => true,
+            ],
+        ];
+    }
+}

src/LoggerColorScheme.php

@@ -1,29 +0,0 @@
-<?php
-
-namespace Kelunik\AcmeClient;
-
-use Bramus\Ansi\ControlSequences\EscapeSequences\Enums\SGR;
-use Bramus\Monolog\Formatter\ColorSchemes\ColorSchemeInterface;
-use Bramus\Monolog\Formatter\ColorSchemes\ColorSchemeTrait;
-use Monolog\Logger;
-
-class LoggerColorScheme implements ColorSchemeInterface {
-    use ColorSchemeTrait {
-        ColorSchemeTrait::__construct as private __constructTrait;
-    }
-
-    public function __construct() {
-        $this->__constructTrait();
-
-        $this->setColorizeArray([
-            Logger::DEBUG => $this->ansi->color(SGR::COLOR_FG_WHITE)->get(),
-            Logger::INFO => $this->ansi->color(SGR::COLOR_FG_WHITE_BRIGHT)->get(),
-            Logger::NOTICE => $this->ansi->color(SGR::COLOR_FG_GREEN)->get(),
-            Logger::WARNING => $this->ansi->color(SGR::COLOR_FG_YELLOW)->get(),
-            Logger::ERROR => $this->ansi->color(SGR::COLOR_FG_RED)->get(),
-            Logger::CRITICAL => $this->ansi->color(SGR::COLOR_FG_RED)->get(),
-            Logger::ALERT => $this->ansi->color(SGR::COLOR_FG_RED)->get(),
-            Logger::EMERGENCY => $this->ansi->color(SGR::COLOR_FG_RED)->get(),
-        ]);
-    }
-}

src/functions.php

@@ -2,8 +2,21 @@
 
 namespace Kelunik\AcmeClient;
 
+use InvalidArgumentException;
+use Kelunik\Acme\AcmeException;
+use Phar;
+use Symfony\Component\Yaml\Exception\ParseException;
+use Symfony\Component\Yaml\Yaml;
 use Webmozart\Assert\Assert;
 
+/**
+ * Suggests a command based on similarity in a list of available commands.
+ *
+ * @param string $badCommand invalid command
+ * @param array  $commands list of available commands
+ * @param int    $suggestThreshold similarity threshold
+ * @return string suggestion or empty string if no command is similar enough
+ */
 function suggestCommand($badCommand, array $commands, $suggestThreshold = 70) {
     Assert::string($badCommand, "Bad command must be a string. Got: %s");
     Assert::integer($suggestThreshold, "Suggest threshold must be an integer. Got: %s");
@@ -26,6 +39,13 @@ function suggestCommand($badCommand, array $commands, $suggestThreshold = 70) {
     return $bestMatchPercentage >= $suggestThreshold ? $bestMatch : "";
 }
 
+/**
+ * Resolves a server to a valid URI. If a valid shortcut is passed, it's resolved to the defined URI. If a URI without
+ * protocol is passed, it will default to HTTPS.
+ *
+ * @param string $uri URI to resolve
+ * @return string resolved URI
+ */
 function resolveServer($uri) {
     Assert::string($uri, "URI must be a string. Got: %s");
 
@@ -39,6 +59,10 @@ function resolveServer($uri) {
         return $shortcuts[$uri];
     }
 
+    if (strpos($uri, "/") === false) {
+        throw new InvalidArgumentException("Invalid server URI: " . $uri);
+    }
+
     $protocol = substr($uri, 0, strpos($uri, "://"));
 
     if (!$protocol || $protocol === $uri) {
@@ -48,6 +72,12 @@ function resolveServer($uri) {
     }
 }
 
+/**
+ * Transforms a directory URI to a valid filename for usage as key file name.
+ *
+ * @param string $server URI to the directory
+ * @return string identifier usable as file name
+ */
 function serverToKeyname($server) {
     $server = substr($server, strpos($server, "://") + 3);
 
@@ -56,4 +86,158 @@ function serverToKeyname($server) {
     $keyFile = preg_replace("@\\.+@", ".", $keyFile);
 
     return $keyFile;
+}
+
+/**
+ * Checks whether the application is currently running as Phar.
+ *
+ * @return bool {@code true} if running as Phar, {@code false} otherwise
+ */
+function isPhar() {
+    if (!class_exists("Phar")) {
+        return false;
+    }
+
+    return Phar::running(true) !== "";
+}
+
+/**
+ * Normalizes a path. Replaces all backslashes with slashes and removes trailing slashes.
+ *
+ * @param string $path path to normalize
+ * @return string normalized path
+ */
+function normalizePath($path) {
+    return rtrim(str_replace("\\", "/", $path), "/");
+}
+
+/**
+ * Returns a consistent argument description for CLIMate. Valid arguments are "server" and "storage".
+ *
+ * @param string $argument argument name
+ * @return array CLIMate argument description
+ * @throws AcmeException if the provided acme-client.yml file is invalid
+ */
+function getArgumentDescription($argument) {
+    $isPhar = \Kelunik\AcmeClient\isPhar();
+
+    $config = [];
+
+    if ($isPhar) {
+        $configPath = substr(dirname(Phar::running(true)), strlen("phar://")) . "/acme-client.yml";
+
+        if (file_exists($configPath)) {
+            $configContent = file_get_contents($configPath);
+
+            try {
+                $value = Yaml::parse($configContent);
+
+                if (isset($value["server"]) && is_string($value["server"])) {
+                    $config["server"] = $value["server"];
+                    unset($value["server"]);
+                }
+
+                if (isset($value["storage"]) && is_string($value["storage"])) {
+                    $config["storage"] = $value["storage"];
+                    unset($value["storage"]);
+                }
+
+                if (!empty($value)) {
+                    throw new AcmeException("Provided YAML file had unknown options: " . implode(", ", array_keys($value)));
+                }
+            } catch (ParseException $e) {
+                throw new AcmeException("Unable to parse the YAML file ({$configPath}): " . $e->getMessage());
+            }
+        }
+    }
+
+    switch ($argument) {
+        case "server":
+            $argument = [
+                "prefix" => "s",
+                "longPrefix" => "server",
+                "description" => "ACME server to use for registration and issuance of certificates.",
+                "required" => true,
+            ];
+
+            if (isset($config["server"])) {
+                $argument["required"] = false;
+                $argument["defaultValue"] = $config["server"];
+            }
+
+            return $argument;
+
+        case "storage":
+            $argument = [
+                "longPrefix" => "storage",
+                "description" => "Storage directory for account keys and certificates.",
+                "required" => $isPhar,
+            ];
+
+            if (!$isPhar) {
+                $argument["defaultValue"] = dirname(__DIR__) . "/data";
+            } else if (isset($config["storage"])) {
+                $argument["required"] = false;
+                $argument["defaultValue"] = $config["storage"];
+            }
+
+            return $argument;
+
+        default:
+            throw new InvalidArgumentException("Unknown argument: " . $argument);
+    }
+}
+
+/**
+ * Returns the binary that currently runs. Can be included in help texts about other commands.
+ *
+ * @return string binary callable, shortened based on PATH and CWD
+ */
+function getBinary() {
+    $binary = "bin/acme";
+
+    if (isPhar()) {
+        $binary = substr(Phar::running(true), strlen("phar://"));
+
+        $path = getenv("PATH");
+        $locations = explode(PATH_SEPARATOR, $path);
+
+        $binaryPath = dirname($binary);
+
+        foreach ($locations as $location) {
+            if ($location === $binaryPath) {
+                return substr($binary, strlen($binaryPath) + 1);
+            }
+        }
+
+        $cwd = getcwd();
+
+        if ($cwd && strpos($binary, $cwd) === 0) {
+            $binary = "." . substr($binary, strlen($cwd));
+        }
+    }
+
+    return $binary;
+}
+
+/**
+ * Cuts a text to a certain length and appends an ellipsis if necessary.
+ *
+ * @param string $text text to shorten
+ * @param int    $max maximum length
+ * @param string $append appendix when too long
+ * @return string shortened string
+ */
+function ellipsis($text, $max = 70, $append = "…") {
+    if (strlen($text) <= $max) {
+        return $text;
+    }
+
+    $out = substr($text, 0, $max);
+
+    if (strpos($text, " ") === false) {
+        return $out . $append;
+    }
+
+    return preg_replace("/\\w+$/", "", $out) . $append;
 }

test/FunctionsTest.php

@@ -15,4 +15,15 @@ class FunctionsTest extends \PHPUnit_Framework_TestCase {
         $this->assertSame("acme", suggestCommand("acme!", ["acme"]));
         $this->assertSame("", suggestCommand("issue", ["acme"]));
     }
+
+    public function testIsPhar() {
+        $this->assertFalse(isPhar());
+    }
+
+    public function testNormalizePath() {
+        $this->assertSame("/etc/foobar", normalizePath("/etc/foobar"));
+        $this->assertSame("/etc/foobar", normalizePath("/etc/foobar/"));
+        $this->assertSame("/etc/foobar", normalizePath("/etc/foobar/"));
+        $this->assertSame("C:/etc/foobar", normalizePath("C:\\etc\\foobar\\"));
+    }
 }