git-svn-id: http://jspi.googlecode.com/svn/trunk@4 b34d1714-897f-11dd-9205-735403a6da14

[clinton/mirror/jspi/.git] / jspi / src / main / java / de / lohndirekt / print / IppHttpConnection.java

/**\r
 * Copyright (C) 2003 <a href="http://www.lohndirekt.de/">lohndirekt.de</a>\r
 *\r
 * This library is free software; you can redistribute it and/or\r
 * modify it under the terms of the GNU Lesser General Public\r
 * License as published by the Free Software Foundation; either\r
 * version 2.1 of the License, or (at your option) any later version.\r
 * \r
 * This library is distributed in the hope that it will be useful,\r
 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\r
 * Lesser General Public License for more details.\r
 * \r
 * You should have received a copy of the GNU Lesser General Public\r
 * License along with this library; if not, write to the Free Software\r
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
 *  \r
 */\r
package de.lohndirekt.print;\r
\r
import java.io.IOException;\r
import java.io.InputStream;\r
import java.net.HttpURLConnection;\r
import java.net.URI;\r
import java.net.URISyntaxException;\r
import java.util.logging.Level;\r
import java.util.logging.Logger;\r
\r
import org.apache.commons.httpclient.Credentials;\r
import org.apache.commons.httpclient.HttpClient;\r
import org.apache.commons.httpclient.HttpException;\r
import org.apache.commons.httpclient.UsernamePasswordCredentials;\r
import org.apache.commons.httpclient.methods.EntityEnclosingMethod;\r
import org.apache.commons.httpclient.methods.PostMethod;\r
\r
import de.lohndirekt.print.exception.AuthenticationException;\r
\r
\r
/**\r
 * simple facade / abstraction layer to "commons httpclient"\r
 * \r
 * @author sefftinge\r
 *  \r
 */\r
class IppHttpConnection implements IppConnection {\r
\r
    private Logger log = Logger.getLogger(this.getClass().getName());\r
\r
    private HttpClient httpConn;\r
\r
    private PostMethod method;\r
\r
    /**\r
     * @param uri\r
     * @param user\r
     * @param passwd\r
     * @param useStream\r
     */\r
    public IppHttpConnection(URI uri, String user, String passwd) {\r
        try {\r
            httpConn = new HttpClient();\r
            method = new PostMethod(toHttpURI(uri).toString());\r
            method.addRequestHeader("Content-type", "application/ipp");\r
            method.addRequestHeader("Accept", "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2");\r
            method.setRequestContentLength(EntityEnclosingMethod.CONTENT_LENGTH_AUTO);\r
            // authentication\r
            if (user != null && user.trim().length() > 0) {\r
                if (log.isLoggable(Level.FINER)) {\r
                    log.log(Level.SEVERE, "Using username: "+user+" , passwd.length "+passwd.length());\r
                }\r
                method.setDoAuthentication(true);\r
                Credentials creds = new UsernamePasswordCredentials(user,\r
                        passwd);\r
                httpConn.getState().setCredentials(null,\r
                        toHttpURI(uri).getHost(), creds);\r
                \r
            }\r
            \r
        } catch (Exception e) {\r
            log.log(Level.SEVERE, e.getMessage(), e);\r
        }\r
    }\r
\r
    \r
    /**\r
     * @return content of the response\r
     * @throws IOException\r
     */\r
    public InputStream getIppResponse() throws IOException {\r
        return method.getResponseBodyAsStream();\r
    }\r
\r
    /**\r
     * @return the statuscode of last request\r
     * @throws IOException\r
     */\r
    public int getStatusCode() throws IOException {\r
        return method.getStatusCode();\r
    }\r
\r
    private static URI toHttpURI(URI uri) {\r
        if (uri.getScheme().equals("ipp")) {\r
            String uriString = uri.toString().replaceFirst("ipp", "http");\r
            // TODO remove this hack!\r
//            uriString = uriString.replaceAll("(\\d{1,3}\\.){3}\\d{1,3}:\\d{1,}", "127.0.0.1:631");\r
            // endof hack\r
            try {\r
                uri = new URI(uriString);\r
            } catch (URISyntaxException e) {\r
                throw new RuntimeException("toHttpURI buggy? : uri was " + uri);\r
            }\r
        }\r
        return uri;\r
    }\r
\r
    /**\r
     * @param stream\r
     */\r
    public void setIppRequest(InputStream stream) {\r
        method.setRequestBody(stream);\r
    }\r
    \r
    public boolean execute() throws HttpException, IOException {\r
        if (this.method.validate()) {\r
            httpConn.executeMethod(method);\r
            if (this.getStatusCode()==HttpURLConnection.HTTP_UNAUTHORIZED) {\r
                throw new AuthenticationException(method.getStatusText());\r
            }\r
            return true;\r
        } else {\r
            return false;\r
        }\r
    }\r
\r
}