aboutsummaryrefslogtreecommitdiff
path: root/id.server/src/at/gv/egovernment/moa/id/proxy
diff options
context:
space:
mode:
authorpeter.danner <peter.danner@d688527b-c9ab-4aba-bd8d-4036d912da1d>2005-09-08 06:58:27 +0000
committerpeter.danner <peter.danner@d688527b-c9ab-4aba-bd8d-4036d912da1d>2005-09-08 06:58:27 +0000
commit84def268a82210d29afe5489be5fbe039717de98 (patch)
tree0d247b297b2288f8ee27509b6ec9d182ecd59c03 /id.server/src/at/gv/egovernment/moa/id/proxy
parent7317c03005cec9c99e3f4ed8b5497f0050a42a77 (diff)
downloadmoa-id-spss-84def268a82210d29afe5489be5fbe039717de98.tar.gz
moa-id-spss-84def268a82210d29afe5489be5fbe039717de98.tar.bz2
moa-id-spss-84def268a82210d29afe5489be5fbe039717de98.zip
WebDAV Enhancement des Proxy mit Auskommentierung u.a. des Cookie-Mangers
git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/trunk@501 d688527b-c9ab-4aba-bd8d-4036d912da1d
Diffstat (limited to 'id.server/src/at/gv/egovernment/moa/id/proxy')
-rw-r--r--id.server/src/at/gv/egovernment/moa/id/proxy/servlet/ProxyServlet.java817
1 files changed, 624 insertions, 193 deletions
diff --git a/id.server/src/at/gv/egovernment/moa/id/proxy/servlet/ProxyServlet.java b/id.server/src/at/gv/egovernment/moa/id/proxy/servlet/ProxyServlet.java
index f82ad93ed..50b07eeb4 100644
--- a/id.server/src/at/gv/egovernment/moa/id/proxy/servlet/ProxyServlet.java
+++ b/id.server/src/at/gv/egovernment/moa/id/proxy/servlet/ProxyServlet.java
@@ -3,14 +3,19 @@ package at.gv.egovernment.moa.id.proxy.servlet;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
import java.net.URLEncoder;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
+import java.util.Vector;
import javax.net.ssl.SSLSocketFactory;
import javax.servlet.RequestDispatcher;
@@ -29,9 +34,9 @@ import at.gv.egovernment.moa.id.ParseException;
import at.gv.egovernment.moa.id.ServiceException;
import at.gv.egovernment.moa.id.config.ConfigurationException;
import at.gv.egovernment.moa.id.config.ConnectionParameter;
-import at.gv.egovernment.moa.id.config.proxy.ProxyConfigurationProvider;
import at.gv.egovernment.moa.id.config.proxy.OAConfiguration;
import at.gv.egovernment.moa.id.config.proxy.OAProxyParameter;
+import at.gv.egovernment.moa.id.config.proxy.ProxyConfigurationProvider;
import at.gv.egovernment.moa.id.data.AuthenticationData;
import at.gv.egovernment.moa.id.data.CookieManager;
import at.gv.egovernment.moa.id.proxy.ConnectionBuilder;
@@ -69,8 +74,26 @@ public class ProxyServlet extends HttpServlet {
private static final String ATT_LOGIN_HEADERS = "LoginHeaders";
/** Name of the Attribute for the LoginParameters */
private static final String ATT_LOGIN_PARAMETERS = "LoginParameters";
- /** Name of the Attribute for the SAMLARTIFACT */
- private static final String ATT_SAML_ARTIFACT = "SamlArtifact";
+ /** Name of the Attribute for the SAMLARTIFACT */
+ private static final String ATT_SAML_ARTIFACT = "SamlArtifact";
+ /** Name of the Attribute for the state of the browser request for login dialog*/
+ private static final String ATT_BROWSERREQU = "BrowserLoginRequest";
+ /** Name of the Attribute for the state of the browser request for login dialog*/
+ private static final String ATT_OA_CONF = "oaConf";
+ /** Name of the Attribute for the Logintype of the OnlineApplication*/
+ private static final String ATT_OA_LOGINTYPE = "LoginType";
+ /** Name of the Attribute for the number of the try to login into the OnlineApplication*/
+ private static final String ATT_OA_LOGINTRY = "LoginTry";
+ /** Maximum permitted login tries */
+ private static final int MAX_OA_LOGINTRY = 3;
+ /** Name of the Attribute for authorization value for further connections*/
+ private static final String ATT_OA_AUTHORIZATION_HEADER = "authorizationkey";
+ /** Name of the Attribute for user binding */
+ private static final String ATT_OA_USER_BINDING = "UserBinding";
+ /** For extended internal debug messages */
+ private static final boolean INTERNAL_DEBUG = false;
+ /** Message to be given if browser login failed */
+ private static final String RET_401_MSG = "<html><head><title>Ein Fehler ist aufgetreten</title></head><body><h1>Fehler bei der Anmeldung</h1><p>Bei der Anmeldung ist ein Fehler aufgetreten.</p><p>Fehler bei der Anmeldung. <br>Pr&uuml;fen Sie bitte ihre Berechtigung.<br><b>Abbruch durch den Benutzer.</b><br></p></body></html>";
/**
* @see javax.servlet.http.HttpServlet#service(HttpServletRequest, HttpServletResponse)
@@ -81,13 +104,26 @@ public class ProxyServlet extends HttpServlet {
try {
if (req.getParameter(PARAM_SAMLARTIFACT) != null && req.getParameter(PARAM_TARGET) != null) {
+ //boolean basicauth =
+
+ //if ((!binding full) && (!isBasicAuthenticationHeaderProvided(req))) {
+
+ // browserRequest();
+
+ //} else {
+
// check if SAML Artifact was already used in this session (in case of page reload)
HttpSession session = req.getSession();
- if(null != session && req.getParameter(PARAM_SAMLARTIFACT).equals(session.getAttribute(ATT_SAML_ARTIFACT))) {
- tunnelRequest(req, resp);
+ if (null != session && req.getParameter(PARAM_SAMLARTIFACT).equals(session.getAttribute(ATT_SAML_ARTIFACT))) {
+ if (session.getAttribute(ATT_BROWSERREQU)==null) {
+ tunnelRequest(req, resp);
+ }else{
+ login(req, resp); //login after browser login dialog
+ }
} else
// it is the first time that the SAML Artifact was used
login(req, resp);
+ //}
}
else
tunnelRequest(req, resp);
@@ -99,7 +135,7 @@ public class ProxyServlet extends HttpServlet {
handleError(ex.getMessage(), ex, req, resp);
}
}
-
+
/**
* Login to online application at first call of servlet for a user session.<br/>
* <ul>
@@ -120,114 +156,134 @@ public class ProxyServlet extends HttpServlet {
*/
private void login(HttpServletRequest req, HttpServletResponse resp) throws ConfigurationException, ProxyException, BuildException, ServiceException, ParseException, AuthenticationException {
- String samlArtifact = req.getParameter(PARAM_SAMLARTIFACT);
- Logger.debug("moa-id-proxy login " + PARAM_SAMLARTIFACT + ": " + samlArtifact);
- // String target = req.getParameter(PARAM_TARGET); parameter given but not processed
-
- // get authentication data from the MOA-ID Auth component
- AuthenticationData authData;
- try {
- authData = new GetAuthenticationDataInvoker().getAuthenticationData(samlArtifact);
- } catch (ServiceException ex) {
- throw new ProxyException("proxy.14", new Object[] {ex.getMessage()}, ex);
- } catch (ProxyException ex) {
- throw new ProxyException("proxy.14", new Object[] {ex.getMessage()}, ex);
- }
-
- String urlRequested = req.getRequestURL().toString();
-
- // read configuration data
- ProxyConfigurationProvider proxyConf = ProxyConfigurationProvider.getInstance();
- OAProxyParameter oaParam = proxyConf.getOnlineApplicationParameter(urlRequested);
- if (oaParam == null) {
- throw new ProxyException("proxy.02", new Object[] { urlRequested });
- }
- String publicURLPrefix = oaParam.getPublicURLPrefix();
- Logger.debug("OA: " + publicURLPrefix);
- OAConfiguration oaConf = oaParam.getOaConfiguration();
- ConnectionParameter oaConnParam = oaParam.getConnectionParameter();
- String realURLPrefix = oaConnParam.getUrl();
-
- // resolve login parameters to be forwarded to online application
- LoginParameterResolver lpr =
- LoginParameterResolverFactory.getLoginParameterResolver(publicURLPrefix);
- String clientIPAddress = req.getRemoteAddr();
+ HttpSession session = req.getSession();
+ String samlArtifact = "";
Map loginHeaders = null;
Map loginParameters = null;
- try {
- if (oaConf.getAuthType().equals(OAConfiguration.PARAM_AUTH))
- loginParameters = lpr.getAuthenticationParameters(oaConf, authData, clientIPAddress);
- else
- loginHeaders = lpr.getAuthenticationHeaders(oaConf, authData, clientIPAddress);
-
- } catch (LoginParameterResolverException ex) {
- throw new ProxyException("proxy.13", new Object[] { publicURLPrefix });
- } catch (NotAllowedException e) {
- throw new ProxyException("proxy.15", new Object[] { });
- }
-
- // setup SSLSocketFactory for communication with the online application
+ String publicURLPrefix = "";
+ String realURLPrefix = "";
SSLSocketFactory ssf = null;
- if (oaConnParam.isHTTPSURL()) {
- try {
- ssf = SSLUtils.getSSLSocketFactory(proxyConf, oaConnParam);
- } catch (Throwable ex) {
- throw new ProxyException(
- "proxy.05",
- new Object[] { oaConnParam.getUrl(), ex.toString()},
- ex);
- }
- }
+ String urlRequested = req.getRequestURL().toString();
+ OAConfiguration oaConf = null;
+ String loginType = "";
+ String binding = "full";
+
+ if (session.getAttribute(ATT_BROWSERREQU)==null) {
+
+ samlArtifact = req.getParameter(PARAM_SAMLARTIFACT);
+ Logger.debug("moa-id-proxy login " + PARAM_SAMLARTIFACT + ": " + samlArtifact);
+ // String target = req.getParameter(PARAM_TARGET); parameter given but not processed
+
+ // get authentication data from the MOA-ID Auth component
+ AuthenticationData authData;
+ try {
+ authData = new GetAuthenticationDataInvoker().getAuthenticationData(samlArtifact);
+ } catch (ServiceException ex) {
+ throw new ProxyException("proxy.14", new Object[] {ex.getMessage()}, ex);
+ } catch (ProxyException ex) {
+ throw new ProxyException("proxy.14", new Object[] {ex.getMessage()}, ex);
+ }
+
+ // read configuration data
+ ProxyConfigurationProvider proxyConf = ProxyConfigurationProvider.getInstance();
+ OAProxyParameter oaParam = proxyConf.getOnlineApplicationParameter(urlRequested);
+ if (oaParam == null) {
+ throw new ProxyException("proxy.02", new Object[] { urlRequested });
+ }
+ publicURLPrefix = oaParam.getPublicURLPrefix();
+ Logger.debug("OA: " + publicURLPrefix);
+ oaConf = oaParam.getOaConfiguration();
+ ConnectionParameter oaConnParam = oaParam.getConnectionParameter();
+ realURLPrefix = oaConnParam.getUrl();
+
+ // resolve login parameters to be forwarded to online application
+ LoginParameterResolver lpr = LoginParameterResolverFactory.getLoginParameterResolver(publicURLPrefix);
+ String clientIPAddress = req.getRemoteAddr();
+ try {
+ if (oaConf.getAuthType().equals(OAConfiguration.PARAM_AUTH))
+ loginParameters = lpr.getAuthenticationParameters(oaConf, authData, clientIPAddress);
+ else
+ loginHeaders = lpr.getAuthenticationHeaders(oaConf, authData, clientIPAddress);
+ } catch (LoginParameterResolverException ex) {
+ throw new ProxyException("proxy.13", new Object[] { publicURLPrefix });
+ } catch (NotAllowedException e) {
+ throw new ProxyException("proxy.15", new Object[] { });
+ }
+
+ // setup SSLSocketFactory for communication with the online application
+ if (oaConnParam.isHTTPSURL()) {
+ try {
+ ssf = SSLUtils.getSSLSocketFactory(proxyConf, oaConnParam);
+ } catch (Throwable ex) {
+ throw new ProxyException(
+ "proxy.05",
+ new Object[] { oaConnParam.getUrl(), ex.toString()},
+ ex);
+ }
+ }
+
+ // for stateless online application, store data in HttpSession
+ loginType = oaConf.getLoginType();
+ binding = oaConf.getBinding();
+ Logger.debug("Login type: " + loginType);
+ if (loginType.equals(OAConfiguration.LOGINTYPE_STATELESS)) {
+ int sessionTimeOut = oaParam.getSessionTimeOut();
+ if (sessionTimeOut == 0)
+ sessionTimeOut = 60 * 60; // default 1 h
+
+ session.setMaxInactiveInterval(sessionTimeOut);
+ session.setAttribute(ATT_PUBLIC_URLPREFIX, publicURLPrefix);
+ session.setAttribute(ATT_REAL_URLPREFIX, realURLPrefix);
+ session.setAttribute(ATT_SSL_SOCKET_FACTORY, ssf);
+ session.setAttribute(ATT_LOGIN_HEADERS, loginHeaders);
+ session.setAttribute(ATT_LOGIN_PARAMETERS, loginParameters);
+ session.setAttribute(ATT_SAML_ARTIFACT, samlArtifact);
+ session.setAttribute(ATT_OA_CONF, oaConf);
+ session.setAttribute(ATT_OA_LOGINTYPE, loginType);
+ session.setAttribute(ATT_OA_USER_BINDING, binding);
+ session.removeAttribute(ATT_BROWSERREQU);
+ session.removeAttribute(ATT_OA_AUTHORIZATION_HEADER);
+ session.removeAttribute(ATT_OA_LOGINTRY);
+ Logger.debug("moa-id-proxy: HTTPSession " + session.getId() + " angelegt");
+ }
+ } else {
+ loginHeaders = (Map) session.getAttribute(ATT_LOGIN_HEADERS);
+ publicURLPrefix = (String) session.getAttribute(ATT_PUBLIC_URLPREFIX);
+ realURLPrefix = (String) session.getAttribute(ATT_REAL_URLPREFIX);
+ ssf = (SSLSocketFactory) session.getAttribute(ATT_SSL_SOCKET_FACTORY);
+ loginHeaders = (Map) session.getAttribute(ATT_LOGIN_HEADERS);
+ loginParameters = (Map) session.getAttribute(ATT_LOGIN_PARAMETERS);
+ samlArtifact = (String) session.getAttribute(ATT_SAML_ARTIFACT);
+ oaConf = (OAConfiguration) session.getAttribute(ATT_OA_CONF);
+ loginType = (String) session.getAttribute(ATT_OA_LOGINTYPE);
+ binding = (String) session.getAttribute(ATT_OA_USER_BINDING);
+ session.removeAttribute(ATT_BROWSERREQU);
+ Logger.debug("moa-id-proxy: HTTPSession " + session.getId() + " aufgenommen");
+ }
+
try {
- // for stateless online application, store data in HttpSession
- String loginType = oaConf.getLoginType();
- Logger.debug("Login type: " + loginType);
- if (loginType.equals(OAConfiguration.LOGINTYPE_STATELESS)) {
-
- HttpSession session = req.getSession();
- int sessionTimeOut = oaParam.getSessionTimeOut();
- if (sessionTimeOut == 0)
- sessionTimeOut = 60 * 60; // default 1 h
- session.setMaxInactiveInterval(sessionTimeOut);
- session.setAttribute(ATT_PUBLIC_URLPREFIX, publicURLPrefix);
- session.setAttribute(ATT_REAL_URLPREFIX, realURLPrefix);
- session.setAttribute(ATT_SSL_SOCKET_FACTORY, ssf);
- session.setAttribute(ATT_LOGIN_HEADERS, loginHeaders);
- session.setAttribute(ATT_LOGIN_PARAMETERS, loginParameters);
- session.setAttribute(ATT_SAML_ARTIFACT, samlArtifact);
- Logger.debug("moa-id-proxy: HTTPSession angelegt");
- }
-
-
+ int respcode = 0;
+
// tunnel request to the online application
- int respcode =
- tunnelRequest(
- req,
- resp,
- loginHeaders,
- loginParameters,
- publicURLPrefix,
- realURLPrefix,
- ssf);
+ respcode = tunnelRequest(req, resp, loginHeaders, loginParameters, publicURLPrefix, realURLPrefix, ssf, binding);
if (respcode == 401) {
- Logger.debug("Got 401, trying again");
-
- respcode =
- tunnelRequest(
- req,
- resp,
- loginHeaders,
- loginParameters,
- publicURLPrefix,
- realURLPrefix,
- ssf);
- if (respcode == 401)
- throw new ProxyException("proxy.12", new Object[] { realURLPrefix });
+// if ((! OAConfiguration.BINDUNG_FULL.equals(binding)) && oaConf.getLoginType().equals(OAConfiguration.LOGINTYPE_STATELESS)) {
+// //user has to fill out login-dialog
+// respcode = browserRequest(req, resp, publicURLPrefix, realURLPrefix);
+// }
+// if (respcode == 401) {
+// Logger.debug("Got 401, trying again");
+// respcode = tunnelRequest(req, resp, loginHeaders, loginParameters, publicURLPrefix, realURLPrefix, ssf, binding);
+// if (respcode == 401)
+// throw new ProxyException("proxy.12", new Object[] { realURLPrefix });
+// }
+ if (OAConfiguration.BINDUNG_FULL.equals(binding) && oaConf.getLoginType().equals(OAConfiguration.LOGINTYPE_STATELESS)) {
+ throw new ProxyException("proxy.12", new Object[] { realURLPrefix });
+ }
}
} catch (ProxyException ex) {
throw new ProxyException("proxy.12", new Object[] { realURLPrefix });
-
} catch (Throwable ex) {
throw new ProxyException("proxy.04", new Object[] { urlRequested, ex.toString()}, ex);
}
@@ -241,13 +297,13 @@ public class ProxyServlet extends HttpServlet {
*/
private void tunnelRequest(HttpServletRequest req, HttpServletResponse resp) throws ProxyException, IOException {
- Logger.debug("Tunnel request (stateless)");
+ //Logger.debug("Tunnel request (stateless)");
HttpSession session = req.getSession(false);
if (session == null)
throw new ProxyException("proxy.07", null);
String publicURLPrefix = (String) session.getAttribute(ATT_PUBLIC_URLPREFIX);
- //A sesssion is automatically created when forwarded 1st time to errorpage-proxy.jsp (with the handleError method)
+ //A session is automatically created when forwarded 1st time to errorpage-proxy.jsp (with the handleError method)
//additional check if publicURLPrefix is OK, if not throw an Exception
if (publicURLPrefix == null)
throw new ProxyException("proxy.07", null);
@@ -256,17 +312,21 @@ public class ProxyServlet extends HttpServlet {
SSLSocketFactory ssf = (SSLSocketFactory) session.getAttribute(ATT_SSL_SOCKET_FACTORY);
Map loginHeaders = (Map) session.getAttribute(ATT_LOGIN_HEADERS);
Map loginParameters = (Map) session.getAttribute(ATT_LOGIN_PARAMETERS);
+ String binding = (String) session.getAttribute(ATT_OA_USER_BINDING);
if (publicURLPrefix == null || realURLPrefix == null)
throw new ProxyException("proxy.08", new Object[] { req.getRequestURL().toString()});
- int respcode = tunnelRequest(req, resp, loginHeaders, loginParameters, publicURLPrefix, realURLPrefix, ssf);
- if (respcode == 401)
- {
- Logger.debug("Got 401, trying again");
- respcode = tunnelRequest(req, resp, loginHeaders, loginParameters, publicURLPrefix, realURLPrefix, ssf);
- if (respcode == 401)
- throw new ProxyException("proxy.12", new Object[] { realURLPrefix});
- }
+ int respcode = tunnelRequest(req, resp, loginHeaders, loginParameters, publicURLPrefix, realURLPrefix, ssf, binding);
+ // Handle all requests after the except the first one
+ //if (respcode == 401) {
+ //Logger.debug("Got 401, trying again");
+ //respcode = tunnelRequest(req, resp, loginHeaders, loginParameters, publicURLPrefix, realURLPrefix, ssf, binding);
+ //if (respcode == 401)
+ // throw new ProxyException("proxy.12", new Object[] { realURLPrefix});
+ //}
+ // #tries to login exceeded
+ if (respcode == -401)
+ throw new ProxyException("proxy.16", new Object[] {realURLPrefix, Integer.toString(MAX_OA_LOGINTRY)});
}
/**
@@ -283,76 +343,213 @@ public class ProxyServlet extends HttpServlet {
* @param ssf SSLSocketFactory to use
* @throws IOException if an I/O error occurs
*/
-private int tunnelRequest(HttpServletRequest req, HttpServletResponse resp, Map loginHeaders, Map loginParameters, String publicURLPrefix, String realURLPrefix, SSLSocketFactory ssf)
+private int tunnelRequest(HttpServletRequest req, HttpServletResponse resp, Map loginHeaders, Map loginParameters, String publicURLPrefix, String realURLPrefix, SSLSocketFactory ssf, String binding)
throws IOException {
+ String browserUserID = "";
+ String browserPassword = "";
+ if (INTERNAL_DEBUG && !binding.equals("")) Logger.debug("Binding: " + binding);
+
// collect headers from request
Map headers = new HashMap();
- for (Enumeration enum = req.getHeaderNames(); enum.hasMoreElements();) {
- String headerKey = (String) enum.nextElement();
- //We ignore any Basic-Auth-Headers from the client
- if (headerKey.equalsIgnoreCase("Authorization"))
- { Logger.debug("Ignoring authorization-header from browser: " +req.getHeader(headerKey) );
+ for (Enumeration enu = req.getHeaderNames(); enu.hasMoreElements();) {
+ String headerKey = (String) enu.nextElement();
+ String headerKeyValue = req.getHeader(headerKey);
+ if (INTERNAL_DEBUG) Logger.debug("Incoming:" + headerKey + "=" + headerKeyValue);
+ //Analyze Basic-Auth-Headers from the client
+ if (headerKey.equalsIgnoreCase("Authorization")) {
+ if (headerKeyValue.substring(0,6).equalsIgnoreCase("Basic ")) {
+ String credentials = headerKeyValue.substring(6);
+ byte [] bplaintextcredentials = Base64Utils. decode(credentials, true);
+ String plaintextcredentials = new String(bplaintextcredentials);
+ browserUserID = plaintextcredentials.substring(0,plaintextcredentials.indexOf(":"));
+ browserPassword = plaintextcredentials.substring(plaintextcredentials.indexOf(":")+1);
+ //Logger.debug("Analyzing authorization-header from browser: " + headerKeyValue + "gives UN:PW=" + browserUserID + ":" + browserPassword );
+ }
+ if (headerKeyValue.substring(0,9).equalsIgnoreCase("Negotiate")) {
+ //Logger.debug("Analyzing authorization-header from browser: Found NTLM Aut.: " + headerKeyValue + "gives UN:PW=" + browserUserID + ":" + browserPassword );
+ }
+ }
+ else
+ {
+ headers.put(headerKey, headerKeyValue);
}
- else
- headers.put(headerKey, req.getHeader(headerKey));
}
+
// collect login headers, possibly overwriting headers from request
- if (loginHeaders != null) {
- for (Iterator iter = loginHeaders.keySet().iterator(); iter.hasNext();) {
- String headerKey = (String) iter.next();
- headers.put(headerKey, loginHeaders.get(headerKey));
+ String authorizationvalue="";
+ if (req.getSession().getAttribute(ATT_OA_AUTHORIZATION_HEADER)==null) {
+
+ //we have a connection with not having logged on
+ if (loginHeaders != null && (browserPassword.length()!=0 || browserUserID.length()!=0 || OAConfiguration.BINDUNG_FULL.equals(binding))) {
+ for (Iterator iter = loginHeaders.keySet().iterator(); iter.hasNext();) {
+ String headerKey = (String) iter.next();
+ String headerKeyValue = (String) loginHeaders.get(headerKey);
+ //customize loginheaders if necessary
+ if (isBasicAuthenticationHeader(headerKey, headerKeyValue))
+ {
+ if ( OAConfiguration.BINDUNG_FULL.equals(binding)) {
+ authorizationvalue = headerKeyValue;
+ Logger.debug("Binding: full binding to user established");
+ } else {
+ String credentials = headerKeyValue.substring(6);
+ byte [] bplaintextcredentials = Base64Utils.decode(credentials, true);
+ String plaintextcredentials = new String(bplaintextcredentials);
+ String userID = plaintextcredentials.substring(0,plaintextcredentials.indexOf(":"));
+ String password = plaintextcredentials.substring(plaintextcredentials.indexOf(":")+1);
+ String userIDPassword = ":";
+ if (OAConfiguration.BINDUNG_USERNAME.equals(binding)) {
+ Logger.debug("Binding: Access with necessary binding to user");
+ userIDPassword = userID + ":" + browserPassword;
+ } else if (OAConfiguration.BINDUNG_NONE.equals(binding)) {
+ Logger.debug("Binding: Access without binding to user");
+ //If first time
+ if (browserUserID.length()==0) browserUserID = userID;
+ if (browserPassword.length()==0) browserPassword = password;
+ userIDPassword = browserUserID + ":" + browserPassword;
+ } else {
+ userIDPassword = userID + ":" + password;
+ }
+ credentials = Base64Utils.encode(userIDPassword.getBytes());
+ authorizationvalue = "Basic " + credentials;
+ headerKeyValue = authorizationvalue;
+ }
+ }
+ headers.put(headerKey, headerKeyValue);
+ }
+ }
+ }else{
+ //if OA needs Authorization header in each further request
+ authorizationvalue = (String) req.getSession().getAttribute(ATT_OA_AUTHORIZATION_HEADER);
+ if (loginHeaders != null) headers.put("Authorization", authorizationvalue);
+ }
+
+
+ Vector parameters = new Vector();
+
+ for (Enumeration enu = req.getParameterNames(); enu.hasMoreElements();) {
+ String paramName = (String) enu.nextElement();
+ if (!(paramName.equals(PARAM_SAMLARTIFACT) || paramName.equals(PARAM_TARGET))) {
+ if (INTERNAL_DEBUG) Logger.debug("Req Parameter-put: " + paramName + ":" + req.getParameter(paramName));
+ String parameter[] = new String[2];
+ parameter[0]= paramName;
+ parameter[1]= req.getParameter(paramName);
+ parameters.add(parameter);
}
}
+ // collect login parameters, possibly overwriting parameters from request
+ if (loginParameters != null) {
+ for (Iterator iter = loginParameters.keySet().iterator(); iter.hasNext();) {
+ String paramName = (String) iter.next();
+ if (!(paramName.equals(PARAM_SAMLARTIFACT) || paramName.equals(PARAM_TARGET))) {
+ if (INTERNAL_DEBUG) Logger.debug("Req Login-Parameter-put: " + paramName + ":" + loginParameters.get(paramName));
+ String parameter[] = new String[2];
+ parameter[0]= paramName;
+ parameter[1]= (String) loginParameters.get(paramName);
+ parameters.add(parameter);
+ }
+ }
+ }
+
+
+/*
// collect parameters from request
Map parameters = new HashMap();
- for (Enumeration enum = req.getParameterNames(); enum.hasMoreElements();) {
- String paramName = (String) enum.nextElement();
+ for (Enumeration enu = req.getParameterNames(); enu.hasMoreElements();) {
+ String paramName = (String) enu.nextElement();
+ Logger.debug("Req Parameter-put: " + paramName);
parameters.put(paramName, req.getParameter(paramName));
}
// collect login parameters, possibly overwriting parameters from request
if (loginParameters != null) {
for (Iterator iter = loginParameters.keySet().iterator(); iter.hasNext();) {
String paramName = (String) iter.next();
+ Logger.debug("Req Login-Parameter-put: " + paramName);
parameters.put(paramName, loginParameters.get(paramName));
}
}
- headers.remove("content-length");
+ //Folgende Zeile ergibt fehlerhaftes Verhalten!
+ //headers.remove("content-length");
+ //30.06.2005 wegen Fehler 411 bei Webdav
parameters.remove(PARAM_SAMLARTIFACT);
parameters.remove(PARAM_TARGET);
-
+ */
+
ConnectionBuilder cb = ConnectionBuilderFactory.getConnectionBuilder(publicURLPrefix);
+ //HttpURLConnection conn = cb.buildConnection(req, publicURLPrefix, realURLPrefix, ssf, parameters);
HttpURLConnection conn = cb.buildConnection(req, publicURLPrefix, realURLPrefix, ssf, parameters);
+
//Set Cookies...
- String cookieString = CookieManager.getInstance().getCookie(req.getSession().getId());
+ /*
+ String cookieString = CookieManager.getInstance().getCookie(req.getSession().getId());
if (cookieString!=null)
- {
- //If we get Cookies from Client, we put them throgh if they dont exist/conflict with the stored Cookies
- for (Iterator iter = headers.keySet().iterator(); iter.hasNext();) {
- String headerKey = (String) iter.next();
- String headerValue = (String) headers.get(headerKey);
- if (headerKey.equalsIgnoreCase("Cookie"))
+ {
+ //If we get Cookies from Client, we put them through if they dont exist/conflict with the stored Cookies
+ for (Iterator iter = headers.keySet().iterator(); iter.hasNext();) {
+ String headerKey = (String) iter.next();
+ String headerValue = (String) headers.get(headerKey);
+ if (headerKey.equalsIgnoreCase("Cookie")) {
CookieManager.getInstance().saveOldCookies(req.getSession().getId(), headerValue);
- }
- cookieString = CookieManager.getInstance().getCookie(req.getSession().getId());
- headers.put("cookie", cookieString);
- }
+ Logger.debug("*** Saving old Cookie: " + headerValue);
+ }
+ }
+ cookieString = CookieManager.getInstance().getCookie(req.getSession().getId());
+ headers.put("Cookie", cookieString);
+ Logger.debug("*** Put header Cookie: " + cookieString);
+ }
+ */
// set headers as request properties of URLConnection
for (Iterator iter = headers.keySet().iterator(); iter.hasNext();) {
String headerKey = (String) iter.next();
String headerValue = (String) headers.get(headerKey);
- conn.setRequestProperty(headerKey, headerValue);
- Logger.debug("Req header " + headerKey + ": " + headers.get(headerKey));
- if (Logger.isDebugEnabled() && isBasicAuthenticationHeader(headerKey, headerValue)) {
+ String LogStr = "Req header " + headerKey + ": " + headers.get(headerKey);
+ if (isBasicAuthenticationHeader(headerKey, headerValue)) {
String credentials = headerValue.substring(6);
- String userIDPassword = new String(Base64Utils.decode(credentials, false));
- Logger.debug(":UserID:Password: :" + userIDPassword + ":");
+ byte [] bplaintextcredentials = Base64Utils. decode(credentials, true);
+ String plaintextcredentials = new String(bplaintextcredentials);
+ String uid = plaintextcredentials.substring(0,plaintextcredentials.indexOf(":"));
+ String pwd = plaintextcredentials.substring(plaintextcredentials.indexOf(":")+1);
+ //Sollte AuthorizationInfo vom HTTPClient benutzt werden: cb.addBasicAuthorization(publicURLPrefix, uid, pwd);
+ //if (Logger.isDebugEnabled()) LogStr = LogStr + " >UserID:Password< >" + uid + ":" + pwd + "<";
+ }
+ conn.setRequestProperty(headerKey, headerValue);
+ if (INTERNAL_DEBUG) Logger.debug(LogStr);
+ }
+
+ StringWriter sb = new StringWriter();
+
+ // Write out parameters into output stream of URLConnection.
+ // On GET request, do not send parameters in any case,
+ // otherwise HttpURLConnection would send a POST.
+ if (!"get".equalsIgnoreCase(req.getMethod()) && !parameters.isEmpty()) {
+ boolean firstParam = true;
+ //StringWriter sb = new StringWriter();
+ String parameter[] = new String[2];
+ for (Iterator iter = parameters.iterator(); iter.hasNext();) {
+ parameter = (String[]) iter.next();
+ String paramName = parameter[0];
+ String paramValue = parameter[1];
+ if (firstParam)
+ firstParam = false;
+ else
+ sb.write("&");
+ sb.write(paramName);
+ sb.write("=");
+ sb.write(paramValue);
+ if (INTERNAL_DEBUG) Logger.debug("Req param " + paramName + ": " + paramValue);
}
+ //PrintWriter reqOut = new PrintWriter(conn.getOutputStream());
+ //reqOut.write(sb.toString());
+ //Logger.debug("Req P: (L="+ Integer.toString(sb.toString().length()) +") " + sb.toString());
+ //reqOut.flush();
+ //reqOut.close();
}
+
+ /*
// Write out parameters into output stream of URLConnection.
// On GET request, do not send parameters in any case,
// otherwise HttpURLConnection would send a POST.
@@ -361,7 +558,8 @@ private int tunnelRequest(HttpServletRequest req, HttpServletResponse resp, Map
StringWriter sb = new StringWriter();
for (Iterator iter = parameters.keySet().iterator(); iter.hasNext();) {
String paramname = (String) iter.next();
- String value = URLEncoder.encode((String) parameters.get(paramname));
+ //String value = URLEncoder.encode((String) parameters.get(paramname));
+ String value = (String) parameters.get(paramname);
if (firstParam)
firstParam = false;
else
@@ -373,68 +571,136 @@ private int tunnelRequest(HttpServletRequest req, HttpServletResponse resp, Map
}
PrintWriter reqOut = new PrintWriter(conn.getOutputStream());
reqOut.write(sb.toString());
+ Logger.debug("Req P: " + sb.toString());
reqOut.flush();
reqOut.close();
}
+ */
+
+ // For WebDAV and POST: copy content
+ if (!"get".equalsIgnoreCase(req.getMethod())) {
+ if (INTERNAL_DEBUG && !"post".equalsIgnoreCase(req.getMethod())) Logger.debug("---- WEBDAV ---- copying content");
+ try {
+ OutputStream out = conn.getOutputStream();
+ InputStream in = req.getInputStream();
+ if (!parameters.isEmpty()) out.write(sb.toString().getBytes()); //Parameter nicht mehr mittels Printwriter schreiben
+ copyStream(in, out, null, req.getMethod());
+ out.flush();
+ out.close();
+ } catch (IOException e) {
+ if (!"post".equalsIgnoreCase(req.getMethod()))
+ Logger.debug("---- WEBDAV ---- streamcopy problem");
+ else
+ Logger.debug("---- POST ---- streamcopy problem");
+ }
+ }
+
// connect
conn.connect();
- // Read response status and content type.
- // If the connection returns a 401 disconnect and return
- // otherwise the attempt to read data from that connection
- // will result in an error
-
- if (conn.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED)
- {
- Logger.debug("Found 401... searching cookies");
- String headerKey;
-
- int i = 1;
- CookieManager cm = CookieManager.getInstance();
- while ((headerKey = conn.getHeaderFieldKey(i)) != null) {
- String headerValue = conn.getHeaderField(i);
- if (headerKey.equalsIgnoreCase("set-cookie"))
- { cm.saveCookie(req.getSession().getId(), headerValue);
- cm.add401(req.getSession().getId(),headerValue);
- Logger.debug("Cookie " + headerValue);
- Logger.debug("CookieSession " + req.getSession().getId());
- }
- i++;
+ // check login tries
+ if (conn.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED) {
+ String oa_loginTry = (String) req.getSession().getAttribute(ATT_OA_LOGINTRY);
+ int loginTry = 1;
+ if (oa_loginTry!=null) loginTry = Integer.parseInt(oa_loginTry)+1;
+ req.getSession().setAttribute(ATT_OA_LOGINTRY, Integer.toString(loginTry));
+ if (loginTry > MAX_OA_LOGINTRY) {
+ Logger.debug("Found 401 UNAUTHORIZED, maximum tries exceeded; leaving...");
+ cb.disconnect(conn);
+ //conn.disconnect();
+ return -401;
+ }
}
- conn.disconnect();
- return conn.getResponseCode();
+
+
+
+ if (conn.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED && OAConfiguration.BINDUNG_FULL.equals(binding)) {
+ Logger.debug("Found 401 UNAUTHORIZED, leaving...");
+ /*
+ String headerKey;
+ int i = 1;
+ CookieManager cm = CookieManager.getInstance();
+ while ((headerKey = conn.getHeaderFieldKey(i)) != null) {
+ String headerValue = conn.getHeaderField(i);
+ if (headerKey.equalsIgnoreCase("set-cookie")) {
+ cm.saveCookie(req.getSession().getId(), headerValue);
+ cm.add401(req.getSession().getId(),headerValue);
+ Logger.debug(" Cookie " + headerValue);
+ Logger.debug(" CookieSession " + req.getSession().getId());
+ }
+ i++;
+ }
+ */
+ cb.disconnect(conn);
+ //conn.disconnect();
+ return conn.getResponseCode();
}
+
+
resp.setStatus(conn.getResponseCode());
resp.setContentType(conn.getContentType());
+ if (loginHeaders != null && (conn.getResponseCode()==HttpURLConnection.HTTP_OK || conn.getResponseCode()==HttpURLConnection.HTTP_MOVED_TEMP) && req.getSession().getAttribute(ATT_OA_AUTHORIZATION_HEADER)==null) {
+ req.getSession().setAttribute(ATT_OA_AUTHORIZATION_HEADER, authorizationvalue);
+ Logger.debug("Login OK. Saving authorization header to remember in further requests");
+ }
+
// Read response headers
// Omit response header "content-length" if response header "Transfer-encoding: chunked" is set.
// Otherwise, the connection will not be kept alive, resulting in subsequent missing requests.
// See JavaDoc of javax.servlet.http.HttpServlet:
// When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header.
- Map respHeaders = new HashMap();
+ //Map respHeaders = new HashMap(); �berschreibt headerzeilen
+ Vector respHeaders = new Vector();
+
boolean chunked = false;
String contentLengthKey = null;
String transferEncodingKey = null;
int i = 1;
String headerKey;
+ String loginType = (String) req.getSession().getAttribute(ATT_OA_LOGINTYPE);
while ((headerKey = conn.getHeaderFieldKey(i)) != null) {
String headerValue = conn.getHeaderField(i);
- respHeaders.put(headerKey, headerValue);
+ // �berschrift im Browser-Passworteingabedialog setzen (sonst ist der reale host eingetragen)
+ if (headerKey.equalsIgnoreCase("WWW-Authenticate") && headerValue.startsWith("Basic realm=\"")) {
+ headerValue = "Basic realm=\"" + publicURLPrefix + "\"";
+ if (OAConfiguration.BINDUNG_USERNAME.equals(binding)) headerValue = "Basic realm=\"Bitte Passwort eingeben\"";
+ if (OAConfiguration.BINDUNG_NONE.equals(binding)) headerValue = "Basic realm=\"Bitte Benutzername und Passwort eingeben\"";
+ }
+ // if (!headerKey.equalsIgnoreCase("set-cookie")){
+ //respHeaders.put(headerKey, headerValue);
+ String respHeader[] = new String[2];
+ if ((conn.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED) && headerKey.equalsIgnoreCase("content-length")) {
+ //alter the unauthorized message with template for login
+ //TODO: supply a special login form on unauthorized messages with bindings!=full
+ headerValue = Integer.toString(RET_401_MSG.length());
+ }
+ respHeader[0]= headerKey;
+ respHeader[1]= headerValue;
+
+ if (!(OAConfiguration.BINDUNG_FULL.equals(binding) && OAConfiguration.LOGINTYPE_STATELESS.equals(loginType) && headerKey.equalsIgnoreCase("WWW-Authenticate") && headerValue.startsWith("Basic realm=\""))) {
+ respHeaders.add(respHeader);
+ if (INTERNAL_DEBUG) Logger.debug("Resp header " + headerKey + ": " + headerValue);
+ } else {
+ Logger.debug("Resp header ---REMOVED--- " + headerKey + ": " + headerValue);
+ }
+ // }else{
+ // Logger.debug("Resp header ---REMOVED--- " + headerKey + ": " + headerValue);
+ // }
if (isTransferEncodingChunkedHeader(headerKey, headerValue)) {
chunked = true;
transferEncodingKey = headerKey;
}
- CookieManager cm = CookieManager.getInstance();
- if (headerKey.equalsIgnoreCase("set-cookie"))
- { cm.saveCookie(req.getSession().getId(), headerValue);
- Logger.debug("Cookie " + headerValue);
- Logger.debug("CookieSession " + req.getSession().getId());
- }
+ CookieManager cm = CookieManager.getInstance();
+ if (headerKey.equalsIgnoreCase("set-cookie"))
+ {
+ //cm.saveCookie(req.getSession().getId(), headerValue);
+ //Logger.debug("*** Saving Cookie " + headerValue);
+ //Logger.debug(" CookieSession " + req.getSession().getId());
+ }
if ("content-length".equalsIgnoreCase(headerKey))
contentLengthKey = headerKey;
- Logger.debug("Resp header " + headerKey + ": " + headerValue);
i++;
}
if (chunked && contentLengthKey != null) {
@@ -442,9 +708,43 @@ private int tunnelRequest(HttpServletRequest req, HttpServletResponse resp, Map
Logger.debug("Resp header " + transferEncodingKey + " REMOVED");
}
+ String headerValue;
+ String respHeader[] = new String[2];
+
+ /*
//Get a Hash-Map of all 401-set-cookies
HashMap cookies401 = CookieManager.getInstance().get401(req.getSession().getId());
+ for (Iterator iter = respHeaders.iterator(); iter.hasNext();)
+ {
+ respHeader = (String[]) iter.next();
+ headerKey = respHeader[0];
+ headerValue = respHeader[1];
+
+ if (headerKey.equalsIgnoreCase("Set-Cookie"))
+ {
+ //String headerValue = (String) respHeaders.get(headerKey);
+ Logger.debug(" Found 'Set-Cookie' in ResponseHeaders: " + headerValue);
+ if(!cookies401.containsKey(headerValue.substring(0, headerValue.indexOf("="))))
+ {
+ // If we dont already have a Set-Cookie-Value for THAT Cookie we create one...
+ CookieManager.getInstance().add401(req.getSession().getId(), headerValue);
+ Logger.debug("*** Saving 401 'Set-Cookie' from ResponseHeaders: " + headerValue);
+ }
+ }
+ }
+ */
+
+ //write out all Responseheaders != "set-cookie"
+ for (Iterator iter = respHeaders.iterator(); iter.hasNext();) {
+ respHeader = (String[]) iter.next();
+ headerKey = respHeader[0];
+ headerValue = respHeader[1];
+ // if (!headerKey.equalsIgnoreCase("Set-Cookie"))
+ resp.addHeader(headerKey, headerValue);
+ }
+
+ /*
for (Iterator iter = respHeaders.keySet().iterator(); iter.hasNext();) {
headerKey = (String) iter.next();
@@ -456,47 +756,96 @@ private int tunnelRequest(HttpServletRequest req, HttpServletResponse resp, Map
{
// If we dont already have a Set-Cookie-Value for THAT Cookie we create one...
CookieManager.getInstance().add401(req.getSession().getId(), headerValue);
+ Logger.debug("Saving 401 'Set-Cookie' from ResponseHeaders: " + headerValue);
}
}
}
-
+
//write out all Responseheaders != "set-cookie"
for (Iterator iter = respHeaders.keySet().iterator(); iter.hasNext();) {
headerKey = (String) iter.next();
+ //PeterD
if (!headerKey.equalsIgnoreCase("Set-Cookie"))
- resp.addHeader(headerKey, (String) respHeaders.get(headerKey));
+ resp.addHeader(headerKey, (String) respHeaders.get(headerKey));
}
+ */
+ /*
//write out all Responseheaders = "set-cookie"
cookies401 = CookieManager.getInstance().get401(req.getSession().getId());
Iterator cookie_i = cookies401.values().iterator();
while (cookie_i.hasNext()) {
String element = (String) cookie_i.next();
resp.addHeader("Set-Cookie", element);
+ Logger.debug("Resp header Set-Cookie: " + element);
}
+
+
//Delete all "Set-Cookie" - Values
CookieManager.getInstance().clear401(req.getSession().getId());
+ */
+
+
+ //Logger.debug(">>>> Copy Content");
+ //Logger.debug(" from ()" + conn.getURL());
+ //Logger.debug(" to (" + req.getRemoteAddr() + ":"+ ") " +req.getRequestURL());
// read response stream
Logger.debug("Resp from " + conn.getURL().toString() + ": status " + conn.getResponseCode());
// Load content unless the server lets us know that the content is NOT MODIFIED...
- if (conn.getResponseCode()!=HttpURLConnection.HTTP_NOT_MODIFIED)
- {
+ if (conn.getResponseCode()!=HttpURLConnection.HTTP_NOT_MODIFIED ) {
BufferedInputStream respIn = new BufferedInputStream(conn.getInputStream());
- Logger.debug("Got Inputstream");
+ //Logger.debug("Got Inputstream");
BufferedOutputStream respOut = new BufferedOutputStream(resp.getOutputStream());
- Logger.debug("Got Outputstream");
+ //Logger.debug("Got Outputstream");
+
+
+ byte [] buffer = new byte[4096];
+ if (respOut != null) {
+ int bytesRead;
+ while ((bytesRead = respIn.read(buffer)) >= 0) {
+ if (conn.getResponseCode()!=HttpURLConnection.HTTP_UNAUTHORIZED) respOut.write(buffer, 0, bytesRead);
+ }
+ } else {
+ while (respIn.read(buffer) >= 0);
+ }
+
+
+ /*
int ch;
- while ((ch = respIn.read()) >= 0)
- respOut.write(ch);
+ StringBuffer strBuf = new StringBuffer("");
+ while ((ch = respIn.read()) >= 0) {
+ if (conn.getResponseCode()!=HttpURLConnection.HTTP_UNAUTHORIZED) respOut.write(ch);
+ strBuf.append((char)ch);
+ }
+ Logger.debug("Resp Content:");
+ if (strBuf.toString().length()>500)
+ Logger.debug(strBuf.toString().substring(0,500));
+ else
+ Logger.debug(strBuf.toString());
+ */
+
+
+ if (conn.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED) {
+ respOut.write(RET_401_MSG.getBytes());
+ }
+ respOut.flush();
respOut.close();
respIn.close();
- }
- else
- Logger.debug("Found 304 NOT MODIFIED...");
- conn.disconnect();
- Logger.debug("Request done");
+ if (conn.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED) {
+ Logger.debug("Found 401 UNAUTHORIZED...");
+ cb.disconnect(conn);
+ //conn.disconnect();
+ return conn.getResponseCode();
+ }
+ } else {
+ //if (conn.getResponseCode()==HttpURLConnection.HTTP_NOT_MODIFIED)
+ Logger.debug("Found 304 NOT MODIFIED...");
+ }
+ //conn.disconnect();
+ cb.disconnect(conn);
+ Logger.debug("Request done");
return conn.getResponseCode();
}
@@ -516,6 +865,21 @@ private boolean isBasicAuthenticationHeader(String headerKey, String headerValue
return "basic".equalsIgnoreCase(authenticationSchema);
}
/**
+ * Determines whether a basic authentication header of the kind "Authorization: Basic ..."
+ * is included in a HTTP request
+ * @param req HTTP request
+ * @return true for a basic authentication header provided
+ */
+private boolean isBasicAuthenticationHeaderProvided(HttpServletRequest req) {
+ for (Enumeration enu = req.getHeaderNames(); enu.hasMoreElements();) {
+ String headerKey = (String) enu.nextElement();
+ String headerValue = req.getHeader(headerKey);
+ if (isBasicAuthenticationHeader(headerKey, headerValue))
+ return true;
+ }
+ return false;
+}
+/**
* Determines whether a HTTP header is "Transfer-encoding" header with value containing "chunked"
*
* @param headerKey header name
@@ -574,7 +938,7 @@ protected void handleError(
//req.setAttribute("ExceptionThrown", exceptionThrown);
}
- //forward this to errorpage-proxy.jsp wher the HTML error page is generated
+ //forward this to errorpage-proxy.jsp where the HTML error page is generated
ServletContext context = getServletContext();
RequestDispatcher dispatcher = context.getRequestDispatcher("/errorpage-proxy.jsp");
try {
@@ -587,4 +951,71 @@ protected void handleError(
}
+
+/**
+ * Prepares the session and necessary response-header for the login dialog request
+ * This method returns the response code 200 to avoid 401 proceeding.
+ * @param req HTTP request
+ * @param resp HTTP response
+ * @param publicURLPrefix prefix of request URL to be substituted for the <code>realURLPrefix</code>
+ */
+/*
+private int browserRequest(HttpServletRequest req, HttpServletResponse resp, String publicURLPrefix, String realURLPrefix)
+{
+ //Preparing Browser Request
+ String host="";
+ Logger.debug("OA Browser-Request for user login dialog");
+ try {
+ URL turl = new URL(realURLPrefix);
+ host = turl.getHost();
+ } catch (MalformedURLException e) {
+ Logger.error(e);
+ }
+
+
+ resp.addHeader("WWW-Authenticate", "Basic realm=\"" + host + "\"");
+ resp.setStatus(401);
+
+ HttpSession session = req.getSession();
+ session.setAttribute(ATT_BROWSERREQU, "inProgress");
+
+ return 200;
+}
+*/
+
+// * taken from iaik.utils.util.copyStream:
+/**
+ * Reads all data (until EOF is reached) from the given source to the
+ * destination stream. If the destination stream is null, all data is dropped.
+ * It uses the given buffer to read data and forward it. If the buffer is
+ * null, this method allocates a buffer.
+ *
+ * @param source The stream providing the data.
+ * @param destination The stream that takes the data. If this is null, all
+ * data from source will be read and discarded.
+ * @param buffer The buffer to use for forwarding. If it is null, the method
+ * allocates a buffer.
+ * @exception IOException If reading from the source or writing to the
+ * destination fails.
+ */
+private static void copyStream(InputStream source, OutputStream destination, byte[] buffer, String method) throws IOException {
+ if (source == null) {
+ throw new NullPointerException("Argument \"source\" must not be null.");
+ }
+ if (buffer == null) {
+ buffer = new byte[4096];
+ }
+
+ if (destination != null) {
+ int bytesRead;
+ while ((bytesRead = source.read(buffer)) >= 0) {
+ destination.write(buffer, 0, bytesRead);
+ //if (method.equalsIgnoreCase("POST")) Logger.debug(buffer.toString());
+ }
+ } else {
+ while (source.read(buffer) >= 0);
+ }
+}
+
+
}