lib/ts/MimeTable.cc

/** @file

  MimeTableEntry and MimeTable definitions

  @section license License

  Licensed to the Apache Software Foundation (ASF) under one
  or more contributor license agreements.  See the NOTICE file
  distributed with this work for additional information
  regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
 */

#include "libts.h"        /* MAGIC_EDITING_TAG */

MimeTableEntry
  MimeTable::m_table[] = {
  {"ai", "application/postscript", "8bit", "text"},
  {"aif", "audio/x-aiff", "binary", "sound"},
  {"aifc", "audio/x-aiff", "binary", "sound"},
  {"aiff", "audio/x-aiff", "binary", "sound"},
  {"arj", "application/x-arj-compressed", "binary", "binary"},
  {"au", "audio/basic", "binary", "sound"},
  {"avi", "video/x-msvideo", "binary", "movie"},
  {"bcpio", "application/x-bcpio", "binary", "binary"},
  {"bin", "application/macbinary", "macbinary", "binary"},
  {"c", "text/plain", "7bit", "text"},
  {"cc", "text/plain", "7bit", "text"},
  {"cdf", "application/x-netcdf", "binary", "binary"},
  {"cpio", "application/x-cpio", "binary", "binary"},
  {"csh", "application/x-csh", "7bit", "text"},
  {"doc", "application/msword", "binary", "binary"},
  {"dvi", "application/x-dvi", "binary", "binary"},
  {"eps", "application/postscript", "8bit", "text"},
  {"etx", "text/x-setext", "7bit", "text"},
  {"exe", "application/octet-stream", "binary", "binary"},
  {"f90", "text/plain", "7bit", "text"},
  {"gif", "image/gif", "binary", "image"},
  {"gtar", "application/x-gtar", "binary", "binary"},
  {"gz", "application/x-gzip", "x-gzip", "binary"},
  {"h", "text/plain", "7bit", "text"},
  {"hdf", "application/x-hdf", "binary", "binary"},
  {"hh", "text/plain", "7bit", "text"},
  {"hqx", "application/mac-binhex40", "mac-binhex40", "binary"},
  {"htm", "text/html", "8bit", "text"},
  {"html", "text/html", "8bit", "text"},
  {"ief", "image/ief", "binary", "image"},
  {"jpe", "image/jpeg", "binary", "image"},
  {"jpeg", "image/jpeg", "binary", "image"},
  {"jpg", "image/jpeg", "binary", "image"},
  {"latex", "application/x-latex", "8bit", "text"},
  {"lha", "application/x-lha-compressed", "binary", "binary"},
  {"lsm", "text/plain", "7bit", "text"},
  {"lzh", "application/x-lha-compressed", "binary", "binary"},
  {"m", "text/plain", "7bit", "text"},
  {"man", "application/x-troff-man", "7bit", "text"},
  {"me", "application/x-troff-me", "7bit", "text"},
  {"mif", "application/x-mif", "binary", "binary"},
  {"mime", "www/mime", "8bit", "text"},
  {"mov", "video/quicktime", "binary", "movie"},
  {"movie", "video/x-sgi-movie", "binary", "movie"},
  {"mp2", "audio/mpeg", "binary", "sound"},
  {"mp3", "audio/mpeg", "binary", "sound"},
  {"mpe", "video/mpeg", "binary", "movie"},
  {"mpeg", "video/mpeg", "binary", "movie"},
  {"mpg", "video/mpeg", "binary", "movie"},
  {"ms", "application/x-troff-ms", "7bit", "text"},
  {"msw", "application/msword", "binary", "binary"},
  {"mwrt", "application/macwriteii", "binary", "binary"},
  {"nc", "application/x-netcdf", "binary", "binary"},
  {"oda", "application/oda", "binary", "binary"},
  {"pbm", "image/x-portable-bitmap", "binary", "image"},
  {"pdf", "application/pdf", "binary", "binary"},
  {"pgm", "image/x-portable-graymap", "binary", "image"},
  {"pic", "application/pict", "binary", "image"},
  {"pict", "application/pict", "binary", "image"},
  {"pnm", "image/x-portable-anymap", "binary", "image"},
  {"ppm", "image/x-portable-pixmap", "binary", "image"},
  {"ps", "application/postscript", "8bit", "text"},
  {"qt", "video/quicktime", "binary", "movie"},
  {"ras", "image/cmu-raster", "binary", "image"},
  {"rgb", "image/x-rgb", "binary", "image"},
  {"roff", "application/x-troff", "7bit", "text"},
  {"rpm", "application/x-rpm", "binary", "binary"},
  {"rtf", "application/x-rtf", "7bit", "binary"},
  {"rtx", "text/richtext", "7bit", "text"},
  {"sh", "application/x-sh", "7bit", "text"},
  {"shar", "application/x-shar", "8bit", "text"},
  {"sit", "application/stuffit", "binary", "binary"},
  {"snd", "audio/basic", "binary", "sound"},
  {"src", "application/x-wais-source", "7bit", "text"},
  {"sv4cpio", "application/x-sv4cpio", "binary", "binary"},
  {"sv4crc", "application/x-sv4crc", "binary", "binary"},
  {"t", "application/x-troff", "7bit", "text"},
  {"tar", "application/x-tar", "binary", "binary"},
  {"tcl", "application/x-tcl", "7bit", "text"},
  {"tex", "application/x-tex", "8bit", "text"},
  {"texi", "application/x-texinfo", "7bit", "text"},
  {"texinfo", "application/x-texinfo", "7bit", "text"},
  {"tgz", "application/x-tar", "x-gzip", "binary"},
  {"tif", "image/tiff", "binary", "image"},
  {"tiff", "image/tiff", "binary", "image"},
  {"tr", "application/x-troff", "7bit", "text"},
  {"tsv", "text/tab-separated-values", "7bit", "text"},
  {"txt", "text/plain", "7bit", "text"},
  {"ustar", "application/x-ustar", "binary", "binary"},
  {"wav", "audio/x-wav", "binary", "sound"},
  {"xbm", "image/x-xbitmap", "binary", "image"},
  {"xpm", "image/x-xpixmap", "binary", "image"},
  {"xwd", "image/x-xwindowdump", "binary", "image"},
  {"Z", "application/x-compressed", "x-compress", "binary"},
  {"zip", "application/x-zip-compressed", "zip", "binary"}
};
int
  MimeTable::m_table_size = (sizeof(MimeTable::m_table)) / (sizeof(MimeTable::m_table[0]));
MimeTableEntry
MimeTable::m_unknown = { "unknown", "application/x-unknown-content-type", "binary", "unknown" };
MimeTable
  mimeTable;
////////////////////////////////////////////////////////////////
//
//  class MimeTable
//
////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////
//
//  MimeTable::get_entry_path()
//
////////////////////////////////////////////////////////////////
MimeTableEntry *
MimeTable::get_entry_path(const char *path)
{
  const char *p = strrchr(path, '.');
  MimeTableEntry *e = 0;

  if (p)
    e = get_entry(p + 1);
  else {
    /////////////////////////////////////////
    // file has no extension. make a best  //
    // guess, or return null for unknown   //
    /////////////////////////////////////////
    if (ParseRules::strcasestr(path, "index") ||
        ParseRules::strcasestr(path, "README") ||
        ParseRules::strcasestr(path, "ls-lR") ||
        ParseRules::strcasestr(path, "config") || (path[0] == '\0') || (path[strlen(path) - 1] == '/'))
      e = get_entry("txt");
  }
  if (e == 0)
    e = &m_unknown;

  return (e);
}

////////////////////////////////////////////////////////////////
//
//  MimeTable::get_entry()
//
////////////////////////////////////////////////////////////////
MimeTableEntry *
MimeTable::get_entry(const char *name)
{
  MimeTableEntry key;

  key.name = name;

  // do a binary search. extensions are unique
  int low = 0;
  int high = m_table_size - 1;
  int mid = ((high - low) / 2) + low;
  int found = -1;

  if (!name[0])
    return (0);


  while (1) {
    if (m_table[mid] == key) {
      found = mid;
      break;
    } else if (m_table[mid] < key) {
      if (mid == high) {
        found = -1;
        break;
      } else {
        low = mid + 1;
        mid = ((high - low) / 2) + low;
      }
    } else {
      if (mid == low) {
        found = -1;
        break;
      } else {
        high = mid - 1;
        mid = ((high - low) / 2) + low;
      }
    }
  }

  return ((found >= 0) ? (&m_table[found]) : 0);
}