1 files changed, 48 insertions, 3 deletions
diff --git a/lib/book.js b/lib/book.js
index 77539ce..73a43ec 100644
--- a/lib/book.js
+++ b/lib/book.js
@@ -97,9 +97,27 @@ Book.prototype.prepareConfig = function() {
 };
 
 // Resolve a path in the book source
-// Enforce that the output path in the root folder
+// Enforce that the output path is in the scope
 Book.prototype.resolve = function() {
-    return pathUtil.resolveInRoot.apply(null, [this.root].concat(_.toArray(arguments)));
+    var filename = path.resolve.apply([this.root].concat(_.toArray(arguments)));
+    if (!this.isFileInScope(filename)) {
+        var err = new Error('EACCESS: "' + filename + '" not in "' + this.root + '"');
+        err.code = 'EACCESS';
+        throw err;
+    }
+
+    return filename;
+};
+
+// Return false if a file is outside the book' scope
+Book.prototype.isFileInScope = function(filename) {
+    filename = path.resolve(this.root, filename);
+
+    // Is the file in the scope of the parent?
+    if (this.parent && this.parent.isFileInScope(filename)) return true;
+
+    // Is file in the root folder?
+    return pathUtil.isInRoot(this.root, filename);
 };
 
 // Parse .gitignore, etc to extract rules
@@ -133,8 +151,25 @@ Book.prototype.parse = function() {
 
     .then(function() {
         if (that.isMultilingual()) {
+            if (that.isLanguageBook()) {
+                throw new Error('A multilingual book as a language book is forbidden');
+            }
+
             that.log.info.ln('Parsing multilingual book, with', that.langs.count(), 'languages');
-            return;
+
+            // Create a new book for each language and parse it
+            return Promise.serial(that.langs.list(), function(lang) {
+                that.log.debug.ln('Preparing book for language', lang.id);
+                var langBook = new Book({
+                    fs: that.fs,
+                    parent: that,
+                    root: that.resolve(lang.id)
+                });
+
+                that.books.push(langBook);
+
+                return langBook.parse();
+            });
         }
 
         return Promise()
@@ -229,4 +264,14 @@ Book.prototype.isMultilingual = function() {
     return this.langs.count() > 0;
 };
 
+// Return true if file is in the scope of a child book
+Book.prototype.isInLanguageBook = function(filename) {
+    return _.some(this.langs.list(), function(lang) {
+        return pathUtil.isInRoot(
+            this.resolve(lang.id),
+            this.resolve(filename)
+        );
+    });
+};
+
 module.exports = Book;