wsd: preprocess javascript file for L10n

Change-Id: Ib802beca673e1e90ad5dd9c33cd5191300ae7bf8

1 files changed, 37 insertions, 1 deletions

diff --git a/wsd/FileServer.cpp b/wsd/FileServer.cpp
index b82becbf17..97509813dc 100644
--- a/wsd/FileServer.cpp
+++ b/wsd/FileServer.cpp
@@ -335,7 +335,10 @@ void FileServerRequestHandler::handleRequest(const HTTPRequest& request, Poco::M
             const std::string fileType = endPoint.substr(extPoint + 1);
             std::string mimeType;
             if (fileType == "js")
-                mimeType = "application/javascript";
+            {
+                preprocessJS(request, socket);
+                return;
+            }
             else if (fileType == "css")
                 mimeType = "text/css";
             else if (fileType == "html")
@@ -1047,4 +1050,37 @@ void FileServerRequestHandler::parse(const std::locale& locale, std::istringstre
         ostr << varL10n.str();
     }
 }
+
+void FileServerRequestHandler::preprocessJS(const HTTPRequest& request, const std::shared_ptr<StreamSocket>& socket)
+{
+    std::string lang("en");
+    Poco::Net::HTTPResponse response;
+    const Poco::URI::QueryParameters params = Poco::URI(request.getURI()).getQueryParameters();
+    auto pos = std::find_if(params.begin(), params.end(),
+        [](const std::pair<std::string, std::string>& it) { return it.first == "lang"; });
+    if (pos != params.end())
+        lang = pos->second;
+
+    response.setContentType("application/javascript");
+    response.set("User-Agent", HTTP_AGENT_STRING);
+    response.set("Date", Poco::DateTimeFormatter::format(Poco::Timestamp(), Poco::DateTimeFormat::HTTP_FORMAT));
+    response.add("X-Content-Type-Options", "nosniff");
+
+    const std::string relPath = getRequestPathname(request);
+    LOG_DBG("Preprocessing file: " << relPath);
+    std::string preprocess = *getUncompressedFile(relPath);
+
+    std::ostringstream ostr;
+    std::istringstream istr(preprocess);
+    std::locale locale(LOOLWSD::Generator(lang + ".utf8"));
+
+    parse(locale, istr, ostr, [](const std::string&) { return false; });
+
+    std::ostringstream oss;
+    response.write(oss);
+    oss << ostr.str();
+    socket->send(oss.str());
+
+    LOG_DBG("Sent file: " << relPath);
+}
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