From 59290513e3456ab30f77bd312c8d457d605c5c72 Mon Sep 17 00:00:00 2001
From: Taylor McKinnon <mail@tmacs.space>
Date: Fri, 22 Mar 2019 11:50:18 -0700
Subject: [PATCH] ft(ZENKO-1616): Update ObjectMD model for azure blob api

---
 lib/constants.js              |  4 ++-
 lib/models/ObjectMD.js        | 56 ++++++++++++++++++++++++++++++++++-
 tests/unit/models/ObjectMD.js | 10 ++++++-
 3 files changed, 67 insertions(+), 3 deletions(-)

diff --git a/lib/constants.js b/lib/constants.js
index ecce25a72..a987f0a3b 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -34,7 +34,9 @@ module.exports = {
     emptyFileMd5: 'd41d8cd98f00b204e9800998ecf8427e',
     // Version 2 changes the format of the data location property
     // Version 3 adds the dataStoreName attribute
-    mdModelVersion: 3,
+    // Version 4 add the Creation-Time and Content-Language attributes,
+    //     and add support for x-ms-meta-* headers in UserMetadata
+    mdModelVersion: 4,
     /*
      * Splitter is used to build the object name for the overview of a
      * multipart upload and to build the object names for each part of a
diff --git a/lib/models/ObjectMD.js b/lib/models/ObjectMD.js
index 6300adbe2..bd341c305 100644
--- a/lib/models/ObjectMD.js
+++ b/lib/models/ObjectMD.js
@@ -28,9 +28,14 @@ class ObjectMD {
             } else {
                 this._updateFromParsedJSON(objMd);
             }
+            if (!this._data['creation-time']) {
+                this.setCreationTime(this.getLastModified());
+            }
         } else {
             // set newly-created object md modified time to current time
-            this._data['last-modified'] = new Date().toJSON();
+            const dt = new Date().toJSON();
+            this.setLastModified(dt);
+            this.setCreationTime(dt);
         }
         // set latest md model version now that we ensured
         // backward-compat conversion
@@ -85,6 +90,8 @@ class ObjectMD {
             'content-length': 0,
             'content-type': '',
             'content-md5': '',
+            'content-language': '',
+            'creation-time': undefined,
             // simple/no version. will expand once object versioning is
             // introduced
             'x-amz-version-id': 'null',
@@ -352,6 +359,50 @@ class ObjectMD {
         return this._data['content-md5'];
     }
 
+    /**
+     * Set content-language
+     *
+     * @param {string} contentLanguage - content-language
+     * @return {ObjectMD} itself
+     */
+    setContentLanguage(contentLanguage) {
+        this._data['content-language'] = contentLanguage;
+        return this;
+    }
+
+    /**
+     * Returns content-language
+     *
+     * @return {string} content-language
+     */
+    getContentLanguage() {
+        return this._data['content-language'];
+    }
+
+    /**
+     * Set Creation Date
+     *
+     * @param {string} creationTime - Creation Date
+     * @return {ObjectMD} itself
+     */
+    setCreationTime(creationTime) {
+        this._data['creation-time'] = creationTime;
+        return this;
+    }
+
+    /**
+     * Returns Creation Date
+     *
+     * @return {string} Creation Date
+     */
+    getCreationTime() {
+        // If creation-time is not set fallback to LastModified
+        if (!this._data['creation-time']) {
+            return this.getLastModified();
+        }
+        return this._data['creation-time'];
+    }
+
     /**
      * Set version id
      *
@@ -916,6 +967,9 @@ class ObjectMD {
         Object.keys(metaHeaders).forEach(key => {
             if (key.startsWith('x-amz-meta-')) {
                 this._data[key] = metaHeaders[key];
+            } else if (key.startsWith('x-ms-meta-')) {
+                const _key = key.replace('x-ms-meta-', 'x-amz-meta-');
+                this._data[_key] = metaHeaders[key];
             }
         });
         // If a multipart object and the acl is already parsed, we update it
diff --git a/tests/unit/models/ObjectMD.js b/tests/unit/models/ObjectMD.js
index 1b0d14f7c..8774cc2da 100644
--- a/tests/unit/models/ObjectMD.js
+++ b/tests/unit/models/ObjectMD.js
@@ -30,6 +30,9 @@ describe('ObjectMD class setters/getters', () => {
         ['LastModified', new Date().toJSON()],
         ['ContentMd5', null, ''],
         ['ContentMd5', 'content-md5'],
+        ['ContentLanguage', null, ''],
+        ['ContentLanguage', 'content-language', ''],
+        ['CreationTime', new Date().toJSON()],
         ['AmzVersionId', null, 'null'],
         ['AmzVersionId', 'version-id'],
         ['AmzServerVersionId', null, ''],
@@ -215,8 +218,10 @@ describe('ObjectMD class setters/getters', () => {
         md.setUserMetadata({
             'x-amz-meta-foo': 'bar',
             'x-amz-meta-baz': 'qux',
-            // this one should be filtered out
+            // This one should be filtered out
             'x-amz-storage-class': 'STANDARD_IA',
+            // This one should be changed to 'x-amz-meta-foobar'
+            'x-ms-meta-foobar': 'bar',
             // ACLs are updated
             'acl': {
                 FULL_CONTROL: ['john'],
@@ -225,6 +230,7 @@ describe('ObjectMD class setters/getters', () => {
         assert.deepStrictEqual(JSON.parse(md.getUserMetadata()), {
             'x-amz-meta-foo': 'bar',
             'x-amz-meta-baz': 'qux',
+            'x-amz-meta-foobar': 'bar',
         });
         assert.deepStrictEqual(md.getAcl(), {
             FULL_CONTROL: ['john'],
@@ -333,6 +339,8 @@ describe('getAttributes static method', () => {
             'content-length': true,
             'content-type': true,
             'content-md5': true,
+            'content-language': true,
+            'creation-time': true,
             'x-amz-version-id': true,
             'x-amz-server-version-id': true,
             'x-amz-storage-class': true,