Add Azure Blob Storage support

Signed-off-by: Adam Hoka <hoka.adam@nexogen.hu>

lib/config/default.js

@@ -56,7 +56,7 @@ module.exports = {
   heartbeatTimeout: 10000,
   // document
   documentMaxLength: 100000,
-  // image upload setting, available options are imgur/s3/filesystem
+  // image upload setting, available options are imgur/s3/filesystem/azure
   imageUploadType: 'filesystem',
   imgur: {
     clientID: undefined
@@ -74,6 +74,10 @@ module.exports = {
     port: 9000
   },
   s3bucket: undefined,
+  azure: {
+    connectionString: undefined,
+    container: undefined
+  },
   // authentication
   facebook: {
     clientID: undefined,

lib/config/dockerSecret.js

@@ -22,6 +22,9 @@ if (fs.existsSync(basePath)) {
       accessKeyId: getSecret('s3_acccessKeyId'),
       secretAccessKey: getSecret('s3_secretAccessKey')
     },
+    azure: {
+      connectionString: getSecret('azure_connectionString')
+    },
     facebook: {
       clientID: getSecret('facebook_clientID'),
       clientSecret: getSecret('facebook_clientSecret')

lib/config/environment.js

@@ -45,6 +45,10 @@ module.exports = {
     port: toIntegerConfig(process.env.HMD_MINIO_PORT)
   },
   s3bucket: process.env.HMD_S3_BUCKET,
+  azure: {
+    connectionString: process.env.HMD_AZURE_CONNECTION_STRING,
+    container: process.env.HMD_AZURE_CONTAINER
+  },
   facebook: {
     clientID: process.env.HMD_FACEBOOK_CLIENTID,
     clientSecret: process.env.HMD_FACEBOOK_CLIENTSECRET

lib/config/index.js

@@ -127,8 +127,8 @@ if (config.sessionSecret === 'secret') {
 }
 
 // Validate upload upload providers
-if (['filesystem', 's3', 'minio', 'imgur'].indexOf(config.imageUploadType) === -1) {
-  logger.error('"imageuploadtype" is not correctly set. Please use "filesystem", "s3", "minio" or "imgur". Defaulting to "imgur"')
+if (['filesystem', 's3', 'minio', 'imgur', 'azure'].indexOf(config.imageUploadType) === -1) {
+  logger.error('"imageuploadtype" is not correctly set. Please use "filesystem", "s3", "minio", "azure" or "imgur". Defaulting to "imgur"')
   config.imageUploadType = 'imgur'
 }
 

lib/web/imageRouter/azure.js

@@ -0,0 +1,35 @@
+'use strict'
+const path = require('path')
+
+const config = require('../../config')
+const logger = require('../../logger')
+
+const azure = require('azure-storage')
+
+exports.uploadImage = function (imagePath, callback) {
+  if (!imagePath || typeof imagePath !== 'string') {
+    callback(new Error('Image path is missing or wrong'), null)
+    return
+  }
+
+  if (!callback || typeof callback !== 'function') {
+    logger.error('Callback has to be a function')
+    return
+  }
+
+  var azureBlobService = azure.createBlobService(config.azure.connectionString)
+
+  azureBlobService.createContainerIfNotExists(config.azure.container, { publicAccessLevel: 'blob' }, function (err, result, response) {
+    if (err) {
+      callback(new Error(err.message), null)
+    } else {
+      azureBlobService.createBlockBlobFromLocalFile(config.azure.container, path.basename(imagePath), imagePath, function (err, result, response) {
+        if (err) {
+          callback(new Error(err.message), null)
+        } else {
+          callback(null, azureBlobService.getUrl(config.azure.container, result.name))
+        }
+      })
+    }
+  })
+}