Add support for reading .docx files from Buffer instances

3 files changed, 31 insertions, 2 deletions

diff --git a/README.md b/README.md
index 9a90057..6e32dac 100644
--- a/README.md
+++ b/README.md
@@ -260,7 +260,7 @@ Converts the source document to HTML.
 
 * `input`: an object describing the source document.
   While running on node.js,
-  to read the file found at `path`, pass in `{path: path}`.
+  to read the file found at `path`, pass in `{path: path}`; to read a node.js `Buffer` object, pass in `{buffer: buffer}`.
   While running in the browser,
   to read the file stored in an array buffer, pass in `{arrayBuffer: arrayBuffer}`.
   
@@ -303,7 +303,7 @@ Each paragraph is followed by two newlines.
 
 * `input`: an object describing the source document.
   While running on node.js,
-  to read the file found at `path`, pass in `{path: path}`.
+  to read the file found at `path`, pass in `{path: path}`; to read a node.js `Buffer` object, pass in `{buffer: buffer}`.
   While running in the browser,
   to read the file stored in an array buffer, pass in `{arrayBuffer: arrayBuffer}`.
 
diff --git a/lib/unzip.js b/lib/unzip.js
index 97db80f..51c34a3 100644
--- a/lib/unzip.js
+++ b/lib/unzip.js
@@ -12,6 +12,8 @@ var readFile = promises.promisify(fs.readFile);
 function openZip(options) {
     if (options.path) {
         return readFile(options.path).then(zipfile.openArrayBuffer);
+    } else if (options.buffer) {
+        return zipfile.openArrayBuffer(options.buffer);
     } else if (options.file) {
         return options.file;
     } else {
diff --git a/tests/buffer-tests.js b/tests/buffer-tests.js
new file mode 100644
index 0000000..3b4a6c1
--- /dev/null
+++ b/tests/buffer-tests.js
@@ -0,0 +1,27 @@
+var assert = require("assert");
+var test = require("./testing").test;
+
+var fs = require("fs");
+var path = require("path");
+
+var mammoth = require("../lib");
+
+describe("buffer-tests", function() {
+    test('should convert docx as Buffer to one HTML paragraph', function() {
+        var docxPath = path.join(__dirname, "test-data/single-paragraph.docx");
+        var buffer = fs.readFileSync(docxPath);
+        return mammoth.convertToHtml({buffer: buffer}).then(function(result) {
+            assert.equal(result.value, "<p>Walking on imported air</p>");
+            assert.deepEqual(result.messages, []);
+        });
+    });
+    
+    test('should convert docx as Buffer to plain text', function() {
+        var docxPath = path.join(__dirname, "test-data/single-paragraph.docx");
+        var buffer = fs.readFileSync(docxPath);
+        return mammoth.extractRawText({buffer: buffer}).then(function(result) {
+            assert.equal(result.value, "Walking on imported air\n\n");
+            assert.deepEqual(result.messages, []);
+        });
+    });
+});