From 0d3d33bf1bfb7570eb6070c9d2cd2b1bc07451d2 Mon Sep 17 00:00:00 2001
From: Peter Gribanov <wcode404@gmail.com>
Date: Fri, 10 Nov 2017 20:46:52 +0300
Subject: [PATCH] Get PHP version from [Packagist] (#1256)

---
 lib/all-badge-examples.js           |  9 +++++++-
 server.js                           | 33 +++++++++++++++++++++++++++++
 service-tests/helpers/validators.js | 15 +++++++++++++
 service-tests/packagist.js          | 20 +++++++++++++++++
 4 files changed, 76 insertions(+), 1 deletion(-)
 create mode 100644 service-tests/packagist.js

diff --git a/lib/all-badge-examples.js b/lib/all-badge-examples.js
index bbaf93ac01..f8ac1c8958 100644
--- a/lib/all-badge-examples.js
+++ b/lib/all-badge-examples.js
@@ -966,7 +966,14 @@ const allBadgeExamples = [
       {
         title: 'JetBrains Plugins',
         previewUri: '/jetbrains/plugin/v/9630-a8translate.svg'
-      }
+      },
+      {
+        title: 'PHP from Packagist',
+        previewUri: '/packagist/php-v/symfony/symfony.svg',
+        keywords: [
+          'PHP'
+        ]
+      },
     ]
   },
   {
diff --git a/server.js b/server.js
index 218b249ec3..b80e74b4a8 100644
--- a/server.js
+++ b/server.js
@@ -7395,6 +7395,39 @@ cache(function(data, match, sendBadge, request) {
   });
 }));
 
+// PHP version from Packagist
+camp.route(/^\/packagist\/php-v\/([^/]+\/[^/]+)(?:\/([^/]+))?\.(svg|png|gif|jpg|json)$/,
+cache(function(data, match, sendBadge, request) {
+  const userRepo = match[1];  // eg, espadrine/sc
+  const version = match[2] ? match[2] : 'dev-master';
+  const format = match[3];
+  const options = {
+    method: 'GET',
+    uri: 'https://packagist.org/p/' + userRepo + '.json',
+  };
+  const badgeData = getBadgeData('PHP', data);
+  request(options, function(err, res, buffer) {
+    if (err !== null) {
+      log.error('Packagist error: ' + err.stack);
+      if (res) {
+        log.error('' + res);
+      }
+      badgeData.text[1] = 'invalid';
+      sendBadge(format, badgeData);
+      return;
+    }
+
+    try {
+      const data = JSON.parse(buffer);
+      badgeData.text[1] = data.packages[userRepo][version].require.php;
+      badgeData.colorscheme = 'blue';
+    } catch(e) {
+      badgeData.text[1] = 'invalid';
+    }
+    sendBadge(format, badgeData);
+  });
+}));
+
 // Any badge.
 camp.route(/^\/(:|badge\/)(([^-]|--)*?)-(([^-]|--)*)-(([^-]|--)+)\.(svg|png|gif|jpg)$/,
 function(data, match, end, ask) {
diff --git a/service-tests/helpers/validators.js b/service-tests/helpers/validators.js
index ef925be296..1df150de16 100644
--- a/service-tests/helpers/validators.js
+++ b/service-tests/helpers/validators.js
@@ -11,6 +11,20 @@ const isVPlusTripleDottedVersion = withRegex(/^v[0-9]+.[0-9]+.[0-9]+$/);
 
 const isVPlusDottedVersionAtLeastOne = withRegex(/^v\d+(\.\d+)?(\.\d+)?$/);
 
+// Simple regex for test Composer versions rule
+// https://getcomposer.org/doc/articles/versions.md
+// Examples:
+// 7.1
+// >=5.6
+// >1.0 <2.0
+// !=1.0 <1.1 || >=1.2
+// 7.1.*
+// 7.* || 5.6.*
+// This regex not support branches, minimum-stability, ref and any (*)
+// https://getcomposer.org/doc/04-schema.md#package-links
+// https://getcomposer.org/doc/04-schema.md#minimum-stability
+const isComposerVersion = withRegex(/^\s*(>=|>|<|<=|!=|\^|~)?\d+(\.(\*|(\d+(\.(\d+|\*))?)))?((\s*\|\|)?\s*(>=|>|<|<=|!=|\^|~)?\d+(\.(\*|(\d+(\.(\d+|\*))?)))?)*\s*$/);
+
 const isStarRating = withRegex(/^(?=.{5}$)(\u2605{0,5}[\u00BC\u00BD\u00BE]?\u2606{0,5})$/);
 
 // Required to be > 0, beacuse accepting zero masks many problems.
@@ -31,6 +45,7 @@ module.exports = {
   isSemver,
   isVPlusTripleDottedVersion,
   isVPlusDottedVersionAtLeastOne,
+  isComposerVersion,
   isStarRating,
   isMetric,
   isMetricOverTimePeriod,
diff --git a/service-tests/packagist.js b/service-tests/packagist.js
new file mode 100644
index 0000000000..dc30d321a6
--- /dev/null
+++ b/service-tests/packagist.js
@@ -0,0 +1,20 @@
+'use strict';
+
+const Joi = require('joi');
+const ServiceTester = require('./runner/service-tester');
+const { isComposerVersion } = require('./helpers/validators');
+
+const t = new ServiceTester({ id: 'packagist', title: 'PHP version from Packagist' });
+module.exports = t;
+
+t.create('gets the package version of symfony')
+  .get('/php-v/symfony/symfony.json')
+  .expectJSONTypes(Joi.object().keys({ name: 'PHP', value: isComposerVersion }));
+
+t.create('gets the package version of symfony 2.8')
+  .get('/php-v/symfony/symfony/v2.8.0.json')
+  .expectJSONTypes(Joi.object().keys({ name: 'PHP', value: isComposerVersion }));
+
+t.create('invalid package name')
+  .get('/php-v/frodo/is-not-a-package.json')
+  .expectJSON({ name: 'PHP', value: 'invalid' });