!7

static int id = 1300000;

concept FileMeta {

  int fileID;

  S name;

  S md5;

  bool authed;

  *() {}

  *(int *fileID, S *name) { _doneLoading(); change(); }

  void _doneLoading() {

    //print("_doneLoading " + fileID);

    metaMap.put(fileID, this);

  }

}

static Map<Int, FileMeta> metaMap = synchroMap();

p {

  load("id");

  dbIndexing(FileMeta, 'fileID, FileMeta, 'name, FileMeta, 'md5);

}

svoid setMD5(FileMeta meta) {

  if (nempty(meta.md5)) ret;

  S md5 = "error";

  pcall {

    md5 = md5(fileFile(meta.fileID));

  }

  cset(meta, +md5);

}

static File filesDir() {

  ret prepareProgramDir("files");

}

synchronized html {

  print("uri: " + uri);

  uri = dropPrefix("/", uri);

  if (isInteger(uri)) {

    //if (neq(masterPW(), params.get("_pass")) && !webAuthed()) ret "";

    int id = parseInt(uri);

    FileMeta c = findConcept(FileMeta, fileID := id);

    if (nempty(params.get("remd5"))) {

      cset(c, md5 := null);

      setMD5(c);

    }

    File file = fileFile(id);

    S mimeType = extensionToMimeType(c.name);

    if (nempty(mimeType))

      ret call(getMainBot(), 'serveFile_maxCache, file, mimeType);

    mimeType = "application/binary";

    ret addHeader("Content-Disposition", "attachment; filename=" + quote(c.name),

      call(getMainBot(), 'serveFile_maxCache, file, mimeType));

  }

  //if (!webAuthed()) ret ahref(botLink(#1002590), "please log in");

  if (uri.startsWith("md5/")) {

    uri = dropPrefix("md5/", uri);

    FileMeta meta = findConcept(FileMeta, md5 := uri);

    if (meta == null)

      ret "Not found";

    ret call(getMainBot(), "serveFile_maxCache", fileFile(meta.fileID), "application/binary");

  }

  // finds a file by md5

  if (uri.startsWith("checkmd5/")) {

    uri = dropPrefix("checkmd5/", uri);

    FileMeta meta = findConcept(FileMeta, md5 := uri);

    ret meta == null ? "Not found" : str(meta.fileID);

  }

  if (eq(uri, "upload")) {

    print("upload called");

    S name = params.get("name");

    SS files = getUploadFiles();

    print("got files: " + l(files));

    int id;

    S data = params.get("data");

    if (data != null) {

      print("got data: " + l(data));

      id = newFileID();

      saveBinaryFile(fileFile(id), hexToBytes(data));

    } else {

      String tmpfile = files.get("thefile");

      String originalName = params.get("thefile");

      name = or2(name, originalName);

      assertNotNull(tmpfile);

      File tmp = new File(tmpfile);

      long l = tmp.length();

      if (l == 0) ret "Empty file, exiting";

      id = newFileID();

      copyFile(tmp, fileFile(id));

    }

    FileMeta m = new FileMeta(id, unnull(name));

    cset(m, authed := webAuthed(params));

    setMD5(m);

    ret hrefresh(2, rawLink()) + p("OK:<br>" + ahref(rawLink(str(id)), or2(name, "?")))

      + ahref(rawLink(), "[back]");

  }

  if (eq(uri, "uploadform")) ret htitle("Upload")

    + hmobilefix()

    + uploadform();

  new Matches mm;

  // Note: returns only authed files

  if (startsWith(uri, "latest-file-named/", mm)) {

    S name = urldecode(mm.get(0));

    FileMeta m = first(findAuthedFiles(name));

    ret struct(m == null ? null : ll(m.fileID, m.md5));

  }

  if (eq(uri, "ids-and-md5s"))

    ret struct(flattenList(map(list(FileMeta), func(FileMeta m) { ll(m.fileID, m.md5) })));

  if (eq(uri, "typical-set")) {

    L<FileMeta> l = findAuthedFiles(

      "Circles From tvejysmllsmz.gz",

      "Webs from program #1011161 on tvejysmllsmz.gz");

    ret struct(flattenList(map(l, func(FileMeta m) { ll(m.fileID, m.md5) })));

  }

  if (eq(uri, "")) {

    // main list

    S msg = "";

    L<int> ids = collect(list(FileMeta), 'fileID);

    sortListDesc(ids);

    ret (nempty(msg) ? p(msg) : "")

      + h3("Upload") + uploadform()

      + "<hr>"

      + p(n(ids, "File") + (empty(ids) ? "." : ":")) + ul(map(ids, func(int id) {

      FileMeta meta = metaMap.get(id);

      S title = or2(getString(meta, "name"), "Untitled");

      S linkText = "#" + id + " - " + htmlencode(title);

      S s = ahref(rawLink(str(id)), linkText);

      s += " " + n(fileSize(fileFile(id)), "byte");

      if (meta != null) {

        s += " [" + formatDateGMT(meta.created) + ", md5: " + ahref(rawLink("md5/" + meta.md5), meta.md5) + "]";

        if (meta.authed) s += " " + dottedSpan("*", "Authorized Upload");

      }

      ret s;

    })) 

      //+ p(ahref(pageLink("/uploadform"), "Upload a file"))

      ;

  }

  null;

}

static synchronized int newFileID() {

  while (fileFile(id).exists())

    ++id;

  int i = id++;

  save("id");

  ret i;

}

static File fileFile(int id) {

  ret new File(filesDir(), str(id));

}

sS uploadform() {

  ret huploadform(

        p("File to upload: " + hfileupload())

      + p("Optional name: " + hinputfield("name"))

      + p(hsubmit("OK")),

      "action", rawLink("upload"));

}

static L<FileMeta> findAuthedFiles(S... names) {

  new L<FileMeta> l;

  for (S name : names)

    addIfNotNull(l, highestByField('id, conceptsWhere(FileMeta, +name, authed := true)));

  ret l;

}