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/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.

    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    HTTP Servlet for File Transfer
*/


#include "MemDebug.h"
#include "NetFileServlet.h"
#include "NetAdminServer.h"
#include "NetLayer.h"

#include "DataLoader.h"

// +-------------------------------------------------------------------+

bool
NetFileServlet::DoGet(HttpRequest& request, HttpResponse& response)
{
    if (!CheckUser(request, response))
    return true;

    Text content;
    Text path = request.GetParam("path");
    Text name = request.GetParam("name");

    if (name.length()) {
        BYTE*       buffer = 0;
        DataLoader* loader = DataLoader::GetLoader();

        if (loader) {
            loader->SetDataPath(path);
            int len = loader->LoadBuffer(name, buffer);

            if (len) {
                content = Text((const char*) buffer, len);
            }

            loader->ReleaseBuffer(buffer);
            loader->SetDataPath(0);
        }
    }

    response.SetStatus(HttpResponse::SC_OK);
    response.AddHeader("MIME-Version",  "1.0");
    response.AddHeader("Cache-Control", "no-cache");
    response.AddHeader("Expires",       "-1");
    response.AddHeader("Content-Type",  "text/plain");
    response.SetContent(content);

    return true;
}

// +-------------------------------------------------------------------+

bool
NetWebServlet::DoGet(HttpRequest& request, HttpResponse& response)
{
    Text content;
    Text name = request.URI();
    bool found = false;

    if (name.length() > 4) {
        char filename[256];
        strcpy_s(filename, name.data() + 1);  // skip leading '/'

        FILE* f;
        ::fopen_s(&f, filename, "rb");

        if (f) {
            ::fseek(f, 0, SEEK_END);
            int len = ftell(f);
            ::fseek(f, 0, SEEK_SET);

            BYTE* buf = new(__FILE__,__LINE__) BYTE[len];

            ::fread(buf, len, 1, f);
            ::fclose(f);

            content = Text((const char*) buf, len);
            delete [] buf;

            found = true;
            ::Print("weblog: 200 OK %s %d bytes\n", name.data(), len);
        }
        else {
            ::Print("weblog: 404 Not Found %s\n", name.data());
        }
    }

    if (found) {
        Text content_type = "text/plain";

        if (name.contains(".gif"))
        content_type = "image/gif";
        else if (name.contains(".jpg"))
        content_type = "image/jpeg";
        else if (name.contains(".htm"))
        content_type = "text/html";

        response.SetStatus(HttpResponse::SC_OK);
        response.AddHeader("MIME-Version",  "1.0");
        response.AddHeader("Content-Type",  content_type);
        response.SetContent(content);
    }
    else {
        response.SetStatus(HttpResponse::SC_NOT_FOUND);
    }

    return true;
}