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Added file module, for public file serving.

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StevenLawson 2013-08-27 15:09:07 -04:00
parent baf7a3b2c1
commit c3f8bd33ff
3 changed files with 372 additions and 3 deletions
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359
src/me/StevenLawson/TotalFreedomMod/HTTPD/Module_file.java Normal file
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@ -0,0 +1,359 @@
package me.StevenLawson.TotalFreedomMod.HTTPD;
import java.io.File;
import java.io.FileInputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import static me.StevenLawson.TotalFreedomMod.HTTPD.NanoHTTPD.*;
public class Module_file extends TFM_HTTPD_Module
{
private final File rootDir = new File("./public/");
private static final Map<String, String> MIME_TYPES = new HashMap<String, String>();
static
{
MIME_TYPES.put("css", "text/css");
MIME_TYPES.put("htm", "text/html");
MIME_TYPES.put("html", "text/html");
MIME_TYPES.put("xml", "text/xml");
MIME_TYPES.put("java", "text/x-java-source, text/java");
MIME_TYPES.put("txt", "text/plain");
MIME_TYPES.put("asc", "text/plain");
MIME_TYPES.put("gif", "image/gif");
MIME_TYPES.put("jpg", "image/jpeg");
MIME_TYPES.put("jpeg", "image/jpeg");
MIME_TYPES.put("png", "image/png");
MIME_TYPES.put("mp3", "audio/mpeg");
MIME_TYPES.put("m3u", "audio/mpeg-url");
MIME_TYPES.put("mp4", "video/mp4");
MIME_TYPES.put("ogv", "video/ogg");
MIME_TYPES.put("flv", "video/x-flv");
MIME_TYPES.put("mov", "video/quicktime");
MIME_TYPES.put("swf", "application/x-shockwave-flash");
MIME_TYPES.put("js", "application/javascript");
MIME_TYPES.put("pdf", "application/pdf");
MIME_TYPES.put("doc", "application/msword");
MIME_TYPES.put("ogg", "application/x-ogg");
MIME_TYPES.put("zip", "application/octet-stream");
MIME_TYPES.put("exe", "application/octet-stream");
MIME_TYPES.put("class", "application/octet-stream");
}
public Module_file(String uri, NanoHTTPD.Method method, Map<String, String> headers, Map<String, String> params, Map<String, String> files)
{
super(uri, method, headers, params, files);
}
private File getRootDir()
{
return rootDir;
}
private String encodeUri(String uri)
{
String newUri = "";
StringTokenizer st = new StringTokenizer(uri, "/ ", true);
while (st.hasMoreTokens())
{
String tok = st.nextToken();
if (tok.equals("/"))
{
newUri += "/";
}
else if (tok.equals(" "))
{
newUri += "%20";
}
else
{
try
{
newUri += URLEncoder.encode(tok, "UTF-8");
}
catch (UnsupportedEncodingException ignored)
{
}
}
}
return newUri;
}
private Response serveFile(String uri, Map<String, String> header, File homeDir)
{
Response res = null;
// Make sure we won't die of an exception later
if (!homeDir.isDirectory())
{
res = new Response(Response.Status.INTERNAL_ERROR, NanoHTTPD.MIME_PLAINTEXT, "INTERNAL ERRROR: serveFile(): given homeDir is not a directory.");
}
if (res == null)
{
// Remove URL arguments
uri = uri.trim().replace(File.separatorChar, '/');
if (uri.indexOf('?') >= 0)
{
uri = uri.substring(0, uri.indexOf('?'));
}
// Prohibit getting out of current directory
if (uri.startsWith("src/main") || uri.endsWith("src/main") || uri.contains("../"))
{
res = new Response(Response.Status.FORBIDDEN, NanoHTTPD.MIME_PLAINTEXT, "FORBIDDEN: Won't serve ../ for security reasons.");
}
}
File f = new File(homeDir, uri);
if (res == null && !f.exists())
{
res = new Response(Response.Status.NOT_FOUND, NanoHTTPD.MIME_PLAINTEXT, "Error 404, file not found.");
}
// List the directory, if necessary
if (res == null && f.isDirectory())
{
// Browsers get confused without '/' after the
// directory, send a redirect.
if (!uri.endsWith("/"))
{
uri += "/";
res = new Response(Response.Status.REDIRECT, NanoHTTPD.MIME_HTML, "<html><body>Redirected: <a href=\"" + uri + "\">" + uri
+ "</a></body></html>");
res.addHeader("Location", uri);
}
if (res == null)
{
// First try index.html and index.htm
if (new File(f, "index.html").exists())
{
f = new File(homeDir, uri + "/index.html");
}
else if (new File(f, "index.htm").exists())
{
f = new File(homeDir, uri + "/index.htm");
}
else if (f.canRead())
{
// No index file, list the directory if it is readable
res = new Response(listDirectory(uri, f));
}
else
{
res = new Response(Response.Status.FORBIDDEN, NanoHTTPD.MIME_PLAINTEXT, "FORBIDDEN: No directory listing.");
}
}
}
try
{
if (res == null)
{
// Get MIME type from file name extension, if possible
String mime = null;
int dot = f.getCanonicalPath().lastIndexOf('.');
if (dot >= 0)
{
mime = MIME_TYPES.get(f.getCanonicalPath().substring(dot + 1).toLowerCase());
}
if (mime == null)
{
mime = NanoHTTPD.MIME_DEFAULT_BINARY;
}
// Calculate etag
String etag = Integer.toHexString((f.getAbsolutePath() + f.lastModified() + "" + f.length()).hashCode());
// Support (simple) skipping:
long startFrom = 0;
long endAt = -1;
String range = header.get("range");
if (range != null)
{
if (range.startsWith("bytes="))
{
range = range.substring("bytes=".length());
int minus = range.indexOf('-');
try
{
if (minus > 0)
{
startFrom = Long.parseLong(range.substring(0, minus));
endAt = Long.parseLong(range.substring(minus + 1));
}
}
catch (NumberFormatException ignored)
{
}
}
}
// Change return code and add Content-Range header when skipping is requested
long fileLen = f.length();
if (range != null && startFrom >= 0)
{
if (startFrom >= fileLen)
{
res = new Response(Response.Status.RANGE_NOT_SATISFIABLE, NanoHTTPD.MIME_PLAINTEXT, "");
res.addHeader("Content-Range", "bytes 0-0/" + fileLen);
res.addHeader("ETag", etag);
}
else
{
if (endAt < 0)
{
endAt = fileLen - 1;
}
long newLen = endAt - startFrom + 1;
if (newLen < 0)
{
newLen = 0;
}
final long dataLen = newLen;
FileInputStream fis = new FileInputStream(f)
{
@Override
public int available() throws IOException
{
return (int) dataLen;
}
};
fis.skip(startFrom);
res = new Response(Response.Status.PARTIAL_CONTENT, mime, fis);
res.addHeader("Content-Length", "" + dataLen);
res.addHeader("Content-Range", "bytes " + startFrom + "-" + endAt + "/" + fileLen);
res.addHeader("ETag", etag);
}
}
else
{
if (etag.equals(header.get("if-none-match")))
{
res = new Response(Response.Status.NOT_MODIFIED, mime, "");
}
else
{
res = new Response(Response.Status.OK, mime, new FileInputStream(f));
res.addHeader("Content-Length", "" + fileLen);
res.addHeader("ETag", etag);
}
}
}
}
catch (IOException ioe)
{
res = new Response(Response.Status.FORBIDDEN, NanoHTTPD.MIME_PLAINTEXT, "FORBIDDEN: Reading file failed.");
}
res.addHeader("Accept-Ranges", "bytes"); // Announce that the file server accepts partial content requestes
return res;
}
private String listDirectory(String uri, File f)
{
String heading = "Directory " + uri;
String msg = "<html><head><title>" + heading + "</title><style><!--\n"
+ "span.dirname { font-weight: bold; }\n"
+ "span.filesize { font-size: 75%; }\n"
+ "// -->\n"
+ "</style>"
+ "</head><body><h1>" + heading + "</h1>";
String up = null;
if (uri.length() > 1)
{
String u = uri.substring(0, uri.length() - 1);
int slash = u.lastIndexOf('/');
if (slash >= 0 && slash < u.length())
{
up = uri.substring(0, slash + 1);
}
}
List<String> _files = Arrays.asList(f.list(new FilenameFilter()
{
@Override
public boolean accept(File dir, String name)
{
return new File(dir, name).isFile();
}
}));
Collections.sort(_files);
List<String> directories = Arrays.asList(f.list(new FilenameFilter()
{
@Override
public boolean accept(File dir, String name)
{
return new File(dir, name).isDirectory();
}
}));
Collections.sort(directories);
if (up != null || directories.size() + _files.size() > 0)
{
msg += "<ul>";
if (up != null || directories.size() > 0)
{
msg += "<section class=\"directories\">";
if (up != null)
{
msg += "<li><a rel=\"directory\" href=\"" + up + "\"><span class=\"dirname\">..</span></a></b></li>";
}
for (int i = 0; i < directories.size(); i++)
{
String dir = directories.get(i) + "/";
msg += "<li><a rel=\"directory\" href=\"" + encodeUri(uri + dir) + "\"><span class=\"dirname\">" + dir + "</span></a></b></li>";
}
msg += "</section>";
}
if (_files.size() > 0)
{
msg += "<section class=\"files\">";
for (int i = 0; i < _files.size(); i++)
{
String file = _files.get(i);
msg += "<li><a href=\"" + encodeUri(uri + file) + "\"><span class=\"filename\">" + file + "</span></a>";
File curFile = new File(f, file);
long len = curFile.length();
msg += "&nbsp;<span class=\"filesize\">(";
if (len < 1024)
{
msg += len + " bytes";
}
else if (len < 1024 * 1024)
{
msg += len / 1024 + "." + (len % 1024 / 10 % 100) + " KB";
}
else
{
msg += len / (1024 * 1024) + "." + len % (1024 * 1024) / 10 % 100 + " MB";
}
msg += ")</span></li>";
}
msg += "</section>";
}
msg += "</ul>";
}
msg += "</body></html>";
return msg;
}
@Override
public Response getResponse()
{
return serveFile(uri, headers, getRootDir());
}
}

4
src/me/StevenLawson/TotalFreedomMod/HTTPD/TFM_HTTPD_Manager.java
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@ -84,6 +84,10 @@ public class TFM_HTTPD_Manager
{ {
return new Module_help(uri, method, headers, params, files).getResponse(); return new Module_help(uri, method, headers, params, files).getResponse();
} }
else if ("public".equalsIgnoreCase(args[0]))
{
return new Module_file(uri, method, headers, params, files).getResponse();
}
return null; return null;
} }
}); });

12
src/me/StevenLawson/TotalFreedomMod/HTTPD/TFM_HTTPD_Module.java
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@ -20,16 +20,22 @@ public abstract class TFM_HTTPD_Module
this.files = files; this.files = files;
} }
public abstract String getBody(); public String getBody()
{
return "";
}
public abstract String getTitle(); public String getTitle()
{
return "";
}
public String getStyle() public String getStyle()
{ {
return ""; return "";
} }
public final Response getResponse() public Response getResponse()
{ {
return new TFM_HTTPD_PageBuilder(getBody(), getTitle(), getStyle()).getResponse(); return new TFM_HTTPD_PageBuilder(getBody(), getTitle(), getStyle()).getResponse();
} }