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yacy_search_server
mirror of https://github.com/yacy/yacy_search_server
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*) httpdProxyHandler.java

Browse Source 
- harmonizing proxy exception handling
- adding malformed URL + blacklist check for http head method
- adding malformed URL check to http post method
- chunked encoding is now not used anymore for http post if clients
  are http/0.9 or http/1.0 clients (same behaviour as already implemented for get)
- now an exception will be thrown on internal httpc errors to force an error output
  to the client or a connection close. This should help to fix the "binary data in browser window" bug

*) plasmaSwitchboard.java
- fixing the following Bug
  E 2005/09/03 18:02:42 PLASMA Could not index URL http://mis04.de/FAIL/snot.php: null
  java.lang.NullPointerException
	at de.anomic.plasma.plasmaSwitchboard.processResourceStack(plasmaSwitchboard.java:1000)
	at de.anomic.plasma.plasmaSwitchboard.deQueue(plasmaSwitchboard.java:625)
	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at de.anomic.server.serverInstantThread.job(serverInstantThread.java:95)
	at de.anomic.server.serverAbstractThread.run(serverAbstractThread.java:243)
  This bug could occure if the cached responseHeader is null
- getting the mimeType now from the parsed document instead of the responseHeader because the 
  mimeType could have been changed during content parsing (e.g. because of the mimetypeParser)

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@656 6c8d7289-2bf4-0310-a012-ef5d649a1542
pull/1/head
theli 19 years ago
parent f90f699ab1
commit 4e07828807
3 changed files with 232 additions and 193 deletions
Show Stats Download Patch File Download Diff File

380
source/de/anomic/http/httpdProxyHandler.java
Unescape View File

@ -348,7 +348,7 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
// blacklist idea inspired by [AS]:
// respond a 404 for all AGIS ("all you get is shit") servers
String hostlow = host.toLowerCase();
if (switchboard.urlBlacklist.isListed(hostlow, path)) {
if (plasmaSwitchboard.urlBlacklist.isListed(hostlow, path)) {
httpd.sendRespondError(conProp,respond,4,403,null,
"URL '" + hostlow + "' blocked by yacy proxy (blacklisted)",null);
this.theLogger.logInfo("AGIS blocking of host '" + hostlow + "'");
@ -652,70 +652,9 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
chunkedOut.flush();
}
} catch (Exception e) {
// this may happen if
// - the targeted host does not exist
// - anything with the remote server was wrong.
// - the client unexpectedly closed the connection ...
try {
// deleting cached content
if (cacheFile.exists()) cacheFile.delete();
// doing some errorhandling ...
int httpStatusCode = 404;
String httpStatusText = null;
String errorMessage = null;
Exception errorExc = e;
boolean unknownError = false;
if (e instanceof ConnectException) {
httpStatusCode = 403; httpStatusText = "Connection refused";
errorMessage = "Connection refused by destination host";
} else if (e instanceof BindException) {
errorMessage = "Unable to establish a connection to the destination host";
} else if (e instanceof NoRouteToHostException) {
errorMessage = "No route to destination host";
} else if (e instanceof UnknownHostException) {
errorMessage = "IP address of the destination host could not be determined";
} else {
String exceptionMsg = e.getMessage();
if ((exceptionMsg != null) && (exceptionMsg.indexOf("Corrupt GZIP trailer") >= 0)) {
// just do nothing, we leave it this way
this.theLogger.logFine("ignoring bad gzip trail for URL " + url + " (" + e.getMessage() + ")");
this.forceConnectionClose();
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("Connection reset")>= 0)) {
errorMessage = "Connection reset";
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("unknown host")>=0)) {
errorMessage = exceptionMsg;
} else if ((remote != null)&&(remote.isClosed())) {
// TODO: query for broken pipe
errorMessage = "Destination host unexpectedly closed connection";
} else {
errorMessage = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
unknownError = true;
}
}
// sending back an error message to the client
if (!conProp.containsKey(httpd.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
httpd.sendRespondError(conProp,respond,4,httpStatusCode,httpStatusText,errorMessage,errorExc);
} else {
if (unknownError) {
this.theLogger.logFine("Error while processing request '" +
conProp.getProperty(httpd.CONNECTION_PROP_REQUESTLINE,"unknown") + "':" +
"\n" + Thread.currentThread().getName() +
"\n" + errorMessage,e);
} else {
this.theLogger.logFine("Error while processing request '" +
conProp.getProperty(httpd.CONNECTION_PROP_REQUESTLINE,"unknown") + "':" +
"\n" + Thread.currentThread().getName() +
"\n" + errorMessage);
}
this.forceConnectionClose();
}
} catch (Exception ee) {
this.forceConnectionClose();
}
// deleting cached content
if (cacheFile.exists()) cacheFile.delete();
handleProxyException(e,remote,conProp,respond,url);
} finally {
if (remote != null) httpc.returnInstance(remote);
}
@ -852,58 +791,76 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
}
public void doHead(Properties conProp, httpHeader requestHeader, OutputStream respond) throws IOException {
this.connectionProperties = conProp;
String method = conProp.getProperty("METHOD");
String host = conProp.getProperty("HOST");
String path = conProp.getProperty("PATH");
String args = conProp.getProperty("ARGS"); // may be null if no args were given
String httpVer = conProp.getProperty(httpd.CONNECTION_PROP_HTTP_VER);
switchboard.proxyLastAccess = System.currentTimeMillis();
int port;
int pos;
if ((pos = host.indexOf(":")) < 0) {
port = 80;
} else {
port = Integer.parseInt(host.substring(pos + 1));
host = host.substring(0, pos);
}
// check the blacklist, inspired by [AS]: respond a 404 for all AGIS (all you get is shit) servers
String hostlow = host.toLowerCase();
if (switchboard.urlBlacklist.isListed(hostlow, path)) {
try {
byte[] errorMsg = ("404 (generated): URL '" + hostlow + "' blocked by yacy proxy (blacklisted)\r\n").getBytes();
httpd.sendRespondHeader(conProp,respond,httpVer,404,"Not Found (AGIS)",0);
this.theLogger.logInfo("AGIS blocking of host '" + hostlow + "'"); // debug
return;
} catch (Exception ee) {}
}
// set another userAgent, if not yellowlisted
if (!(yellowList.contains(domain(hostlow)))) {
// change the User-Agent
requestHeader.put(httpHeader.USER_AGENT, generateUserAgent(requestHeader));
}
// setting the X-Forwarded-For Header
requestHeader.put(httpHeader.X_FORWARDED_FOR,conProp.getProperty(httpd.CONNECTION_PROP_CLIENTIP));
// resolve yacy and yacyh domains
String yAddress = yacyCore.seedDB.resolveYacyAddress(host);
// re-calc the url path
String remotePath = (args == null) ? path : (path + "?" + args);
// attach possible yacy-sublevel-domain
if ((yAddress != null) && ((pos = yAddress.indexOf("/")) >= 0)) remotePath = yAddress.substring(pos) + remotePath;
this.connectionProperties = conProp;
httpc remote = null;
httpc.response res = null;
URL url = null;
try {
// remembering the starting time of the request
Date requestDate = new Date(); // remember the time...
this.connectionProperties.put(httpd.CONNECTION_PROP_REQUEST_START,new Long(requestDate.getTime()));
if (yacyTrigger) de.anomic.yacy.yacyCore.triggerOnlineAction();
switchboard.proxyLastAccess = System.currentTimeMillis();
// using an ByteCount OutputStream to count the send bytes
respond = new httpdByteCountOutputStream(respond,conProp.getProperty(httpd.CONNECTION_PROP_REQUESTLINE).length() + 2);
String host = conProp.getProperty(httpd.CONNECTION_PROP_HOST);
String path = conProp.getProperty(httpd.CONNECTION_PROP_PATH);
String args = conProp.getProperty(httpd.CONNECTION_PROP_ARGS);
String httpVer = conProp.getProperty(httpd.CONNECTION_PROP_HTTP_VER);
switchboard.proxyLastAccess = System.currentTimeMillis();
int port, pos;
if ((pos = host.indexOf(":")) < 0) {
port = 80;
} else {
port = Integer.parseInt(host.substring(pos + 1));
host = host.substring(0, pos);
}
try {
url = new URL("http", host, port, (args == null) ? path : path + "?" + args);
} catch (MalformedURLException e) {
String errorMsg = "ERROR: internal error with url generation: host=" +
host + ", port=" + port + ", path=" + path + ", args=" + args;
serverLog.logSevere("PROXY", errorMsg);
httpd.sendRespondError(conProp,respond,4,501,null,errorMsg,e);
return;
}
// check the blacklist, inspired by [AS]: respond a 404 for all AGIS (all you get is shit) servers
String hostlow = host.toLowerCase();
if (plasmaSwitchboard.urlBlacklist.isListed(hostlow, path)) {
httpd.sendRespondError(conProp,respond,4,403,null,
"URL '" + hostlow + "' blocked by yacy proxy (blacklisted)",null);
this.theLogger.logInfo("AGIS blocking of host '" + hostlow + "'");
return;
}
// set another userAgent, if not yellowlisted
if (!(yellowList.contains(domain(hostlow)))) {
// change the User-Agent
requestHeader.put(httpHeader.USER_AGENT, generateUserAgent(requestHeader));
}
// setting the X-Forwarded-For Header
requestHeader.put(httpHeader.X_FORWARDED_FOR,conProp.getProperty(httpd.CONNECTION_PROP_CLIENTIP));
// resolve yacy and yacyh domains
String yAddress = yacyCore.seedDB.resolveYacyAddress(host);
// re-calc the url path
String remotePath = (args == null) ? path : (path + "?" + args);
// attach possible yacy-sublevel-domain
if ((yAddress != null) && ((pos = yAddress.indexOf("/")) >= 0)) remotePath = yAddress.substring(pos) + remotePath;
// removing hop by hop headers
this.removeHopByHopHeaders(requestHeader);
// open the connection: second is needed for [AS] patch
remote = (yAddress == null) ? newhttpc(host, port, timeout): newhttpc(yAddress, timeout);
@ -919,22 +876,9 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
this.removeHopByHopHeaders(res.responseHeader);
// sending the server respond back to the client
httpd.sendRespondHeader(conProp,respond,httpVer,Integer.parseInt(res.status.split(" ")[0]),res.responseHeader);
httpd.sendRespondHeader(conProp,respond,httpVer,res.statusCode,res.statusText,res.responseHeader);
} catch (Exception e) {
try {
String exTxt = e.getMessage();
if ((exTxt!=null)&&(exTxt.startsWith("Socket closed"))) {
this.forceConnectionClose();
} else if (!conProp.containsKey(httpd.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
String errorMsg = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
httpd.sendRespondError(conProp,respond,4,503,null,errorMsg,e);
this.theLogger.logSevere(errorMsg);
} else {
this.forceConnectionClose();
}
} catch (Exception ee) {
this.forceConnectionClose();
}
handleProxyException(e,remote,conProp,respond,url);
} finally {
if (remote != null) httpc.returnInstance(remote);
}
@ -946,10 +890,13 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
this.connectionProperties = conProp;
httpc remote = null;
URL url = null;
try {
// remembering the starting time of the request
Date requestDate = new Date(); // remember the time...
this.connectionProperties.put(httpd.CONNECTION_PROP_REQUEST_START,new Long(requestDate.getTime()));
if (yacyTrigger) de.anomic.yacy.yacyCore.triggerOnlineAction();
switchboard.proxyLastAccess = System.currentTimeMillis();
// using an ByteCount OutputStream to count the send bytes
@ -968,6 +915,16 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
host = host.substring(0, pos);
}
try {
url = new URL("http", host, port, (args == null) ? path : path + "?" + args);
} catch (MalformedURLException e) {
String errorMsg = "ERROR: internal error with url generation: host=" +
host + ", port=" + port + ", path=" + path + ", args=" + args;
serverLog.logSevere("PROXY", errorMsg);
httpd.sendRespondError(conProp,respond,4,501,null,errorMsg,e);
return;
}
// set another userAgent, if not yellowlisted
if (!(yellowList.contains(domain(host).toLowerCase()))) {
// change the User-Agent
@ -985,59 +942,68 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
// attach possible yacy-sublevel-domain
if ((yAddress != null) && ((pos = yAddress.indexOf("/")) >= 0)) remotePath = yAddress.substring(pos) + remotePath;
// removing hop by hop headers
this.removeHopByHopHeaders(requestHeader);
httpc remote = null;
httpc.response res = null;
try {
remote = (yAddress == null) ? newhttpc(host, port, timeout) : newhttpc(yAddress, timeout);
res = remote.POST(remotePath, requestHeader, body);
// determine if it's an internal error of the httpc
if (res.responseHeader.size() == 0) {
throw new Exception(res.statusText);
}
// filtering out unwanted headers
this.removeHopByHopHeaders(res.responseHeader);
// if the content length is not set we need to use chunked content encoding
long contentLength = res.responseHeader.contentLength();
httpChunkedOutputStream chunked = null;
if (contentLength <= 0) {
res.responseHeader.put(httpHeader.TRANSFER_ENCODING, "chunked");
// sending the request
remote = (yAddress == null) ? newhttpc(host, port, timeout) : newhttpc(yAddress, timeout);
httpc.response res = remote.POST(remotePath, requestHeader, body);
// determine if it's an internal error of the httpc
if (res.responseHeader.size() == 0) {
throw new Exception(res.statusText);
}
// if the content length is not set we need to use chunked content encoding
long contentLength = res.responseHeader.contentLength();
httpChunkedOutputStream chunked = null;
if (contentLength <= 0) {
// according to http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
// a 204,304 message must not contain a message body.
// Therefore we need to set the content-length to 0.
if (res.status.startsWith("204") ||
res.status.startsWith("304")) {
res.responseHeader.put(httpHeader.CONTENT_LENGTH,"0");
} else {
if (httpVer.equals("HTTP/0.9") || httpVer.equals("HTTP/1.0")) {
forceConnectionClose();
} else {
chunked = new httpChunkedOutputStream(respond);
}
res.responseHeader.remove(httpHeader.CONTENT_LENGTH);
chunked = new httpChunkedOutputStream(respond);
}
// sending response headers
httpd.sendRespondHeader(conProp,respond,httpVer,Integer.parseInt(res.status.split(" ")[0]),res.responseHeader);
// respondHeader(respond, res.status, res.responseHeader);
res.writeContent((chunked != null) ? chunked : respond, null);
if (chunked != null) chunked.finish();
remote.close();
} finally {
if (remote != null) httpc.returnInstance(remote);
}
// remove hop by hop headers
this.removeHopByHopHeaders(res.responseHeader);
// sending the respond header back to the client
if (chunked != null) {
res.responseHeader.put(httpHeader.TRANSFER_ENCODING, "chunked");
}
// sending response headers
httpd.sendRespondHeader(conProp,
respond,
httpVer,
res.statusCode,
res.statusText,
res.responseHeader);
// respondHeader(respond, res.status, res.responseHeader);
res.writeContent((chunked != null) ? chunked : respond, null);
if (chunked != null) chunked.finish();
remote.close();
respond.flush();
} catch (Exception e) {
try {
String exTxt = e.getMessage();
if ((exTxt!=null)&&(exTxt.startsWith("Socket closed"))) {
this.forceConnectionClose();
} else if (!conProp.containsKey(httpd.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
String errorMsg = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
httpd.sendRespondError(conProp,respond,4,503,null,errorMsg,e);
this.theLogger.logSevere(errorMsg);
} else {
this.forceConnectionClose();
}
} catch (Exception ee) {
this.forceConnectionClose();
}
handleProxyException(e,remote,conProp,respond,url);
} finally {
if (remote != null) httpc.returnInstance(remote);
respond.flush();
if (respond instanceof httpdByteCountOutputStream) ((httpdByteCountOutputStream)respond).finish();
if (respond instanceof httpdByteCountOutputStream) ((httpdByteCountOutputStream)respond).finish();
this.connectionProperties.put(httpd.CONNECTION_PROP_REQUEST_END,new Long(System.currentTimeMillis()));
this.connectionProperties.put(httpd.CONNECTION_PROP_PROXY_RESPOND_SIZE,new Long(((httpdByteCountOutputStream)respond).getCount()));
@ -1068,7 +1034,7 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
// go on (see below)
} else {
// pass error response back to client
httpd.sendRespondHeader(conProp,clientOut,httpVersion,Integer.parseInt(response.status.split(" ")[0]),response.responseHeader);
httpd.sendRespondHeader(conProp,clientOut,httpVersion,response.statusCode,response.statusText,response.responseHeader);
//respondHeader(clientOut, response.status, response.responseHeader);
return;
}
@ -1218,6 +1184,72 @@ public final class httpdProxyHandler extends httpdAbstractHandler implements htt
out.flush();
}
private void handleProxyException(Exception e, httpc remote, Properties conProp, OutputStream respond, URL url) {
// this may happen if
// - the targeted host does not exist
// - anything with the remote server was wrong.
// - the client unexpectedly closed the connection ...
try {
// doing some errorhandling ...
int httpStatusCode = 404;
String httpStatusText = null;
String errorMessage = null;
Exception errorExc = e;
boolean unknownError = false;
if (e instanceof ConnectException) {
httpStatusCode = 403; httpStatusText = "Connection refused";
errorMessage = "Connection refused by destination host";
} else if (e instanceof BindException) {
errorMessage = "Unable to establish a connection to the destination host";
} else if (e instanceof NoRouteToHostException) {
errorMessage = "No route to destination host";
} else if (e instanceof UnknownHostException) {
errorMessage = "IP address of the destination host could not be determined";
} else {
String exceptionMsg = e.getMessage();
if ((exceptionMsg != null) && (exceptionMsg.indexOf("Corrupt GZIP trailer") >= 0)) {
// just do nothing, we leave it this way
this.theLogger.logFine("ignoring bad gzip trail for URL " + url + " (" + e.getMessage() + ")");
this.forceConnectionClose();
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("Connection reset")>= 0)) {
errorMessage = "Connection reset";
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("unknown host")>=0)) {
errorMessage = exceptionMsg;
} else if ((remote != null)&&(remote.isClosed())) {
// TODO: query for broken pipe
errorMessage = "Destination host unexpectedly closed connection";
} else {
errorMessage = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
unknownError = true;
}
}
// sending back an error message to the client
if (!conProp.containsKey(httpd.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
httpd.sendRespondError(conProp,respond,4,httpStatusCode,httpStatusText,errorMessage,errorExc);
} else {
if (unknownError) {
this.theLogger.logFine("Error while processing request '" +
conProp.getProperty(httpd.CONNECTION_PROP_REQUESTLINE,"unknown") + "':" +
"\n" + Thread.currentThread().getName() +
"\n" + errorMessage,e);
} else {
this.theLogger.logFine("Error while processing request '" +
conProp.getProperty(httpd.CONNECTION_PROP_REQUESTLINE,"unknown") + "':" +
"\n" + Thread.currentThread().getName() +
"\n" + errorMessage);
}
this.forceConnectionClose();
}
} catch (Exception ee) {
this.forceConnectionClose();
}
}
private String generateUserAgent(httpHeader requestHeaders) {
this.userAgentStr.setLength(0);

18
source/de/anomic/plasma/plasmaSwitchboard.java
Unescape View File

@ -940,7 +940,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
return;
}
} else {
log.logFine("(Parser) '" + entry.normalizedURLString() + "'. Unsupported mimeType '" + ((entry.responseHeader() == null) ? null : entry.responseHeader().mime()) + "'.");
log.logFine("(Parser) '" + entry.normalizedURLString() + "'. Unsupported mimeType '" + ((entry.responseHeader() == null) ? "null" : entry.responseHeader().mime()) + "'.");
return;
}
@ -997,9 +997,15 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
try {
//log.logDebug("Create LURL-Entry for '" + entry.normalizedURLString() + "', " +
// "responseHeader=" + entry.responseHeader().toString());
Date lastModified = entry.responseHeader().lastModified();
if (lastModified == null) lastModified = entry.responseHeader().date();
if (lastModified == null) lastModified = new Date();
Date lastModified = null;
if (entry.responseHeader() == null) {
lastModified = new Date();
} else {
lastModified = entry.responseHeader().lastModified();
if (lastModified == null) lastModified = entry.responseHeader().date();
if (lastModified == null) lastModified = new Date();
}
plasmaCrawlLURL.Entry newEntry = urlPool.loadedURL.addEntry(
entry.url(), descr, lastModified, new Date(),
initiatorHash,
@ -1008,7 +1014,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
0, true,
Integer.parseInt(condenser.getAnalysis().getProperty("INFORMATION_VALUE","0"), 16),
plasmaWordIndexEntry.language(entry.url()),
plasmaWordIndexEntry.docType(entry.responseHeader().mime()),
plasmaWordIndexEntry.docType(document.getMimeType()),
entry.size(),
(int) Long.parseLong(condenser.getAnalysis().getProperty("NUMB_WORDS","0"), 16),
processCase
@ -1025,7 +1031,7 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
// do indexing
//log.logDebug("Create Index for '" + entry.normalizedURLString() + "'");
int words = searchManager.addPageIndex(entry.url(), urlHash, loadDate, condenser, plasmaWordIndexEntry.language(entry.url()), plasmaWordIndexEntry.docType(entry.responseHeader().mime()));
int words = searchManager.addPageIndex(entry.url(), urlHash, loadDate, condenser, plasmaWordIndexEntry.language(entry.url()), plasmaWordIndexEntry.docType(document.getMimeType()));
log.logInfo("*Indexed " + words + " words in URL " + entry.url() + " (" + descr + ")");
// if this was performed for a remote crawl request, notify requester

27
source/de/anomic/plasma/plasmaWordIndexEntry.java
Unescape View File

@ -128,19 +128,20 @@ public class plasmaWordIndexEntry {
public static char docType(String mime) {
char doctype = DT_UNKNOWN;
if (mime.endsWith("/jpeg")) doctype = DT_IMAGE;
if (mime.endsWith("/rtf")) doctype = DT_DOC;
if (mime.endsWith("/msword")) doctype = DT_DOC;
if (mime.endsWith("/mspowerpoint")) doctype = DT_DOC;
if (mime.endsWith("/postscript")) doctype = DT_PDFPS;
if (mime.endsWith("/pdf")) doctype = DT_PDFPS;
if (mime.endsWith("/octet-stream")) doctype = DT_BINARY;
if (mime.endsWith("/x-shockwave-flash")) doctype = DT_FLASH;
if (mime.startsWith("audio/")) doctype = DT_AUDIO;
if (mime.startsWith("video/")) doctype = DT_MOVIE;
if (mime.startsWith("text/")) doctype = DT_TEXT;
if (mime.startsWith("image/")) doctype = DT_IMAGE;
if (mime.endsWith("/html")) doctype = DT_HTML;
if (mime == null) doctype = DT_UNKNOWN;
else if (mime.endsWith("/jpeg")) doctype = DT_IMAGE;
else if (mime.endsWith("/rtf")) doctype = DT_DOC;
else if (mime.endsWith("/msword")) doctype = DT_DOC;
else if (mime.endsWith("/mspowerpoint")) doctype = DT_DOC;
else if (mime.endsWith("/postscript")) doctype = DT_PDFPS;
else if (mime.endsWith("/pdf")) doctype = DT_PDFPS;
else if (mime.endsWith("/octet-stream")) doctype = DT_BINARY;
else if (mime.endsWith("/x-shockwave-flash")) doctype = DT_FLASH;
else if (mime.startsWith("audio/")) doctype = DT_AUDIO;
else if (mime.startsWith("video/")) doctype = DT_MOVIE;
else if (mime.startsWith("text/")) doctype = DT_TEXT;
else if (mime.startsWith("image/")) doctype = DT_IMAGE;
else if (mime.endsWith("/html")) doctype = DT_HTML;
//bz2 = application/x-bzip2
//dvi = application/x-dvi
//gz = application/gzip

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