Source Code Cross Referenced for IISConfig.java in  » Sevlet-Container » apache-tomcat-6.0.14 » org » apache » jk » config » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Sevlet Container » apache tomcat 6.0.14 » org.apache.jk.config 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *  Licensed to the Apache Software Foundation (ASF) under one or more
003:         *  contributor license agreements.  See the NOTICE file distributed with
004:         *  this work for additional information regarding copyright ownership.
005:         *  The ASF licenses this file to You under the Apache License, Version 2.0
006:         *  (the "License"); you may not use this file except in compliance with
007:         *  the License.  You may obtain a copy of the License at
008:         *
009:         *      http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         *  Unless required by applicable law or agreed to in writing, software
012:         *  distributed under the License is distributed on an "AS IS" BASIS,
013:         *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         *  See the License for the specific language governing permissions and
015:         *  limitations under the License.
016:         */
017:
018:        package org.apache.jk.config;
019:
020:        import java.io.File;
021:        import java.io.FileWriter;
022:        import java.io.IOException;
023:        import java.io.PrintWriter;
024:        import java.util.Date;
025:
026:        import org.apache.catalina.Context;
027:
028:        /**
029:         Generates automatic IIS isapi_redirect configurations based on
030:         the Tomcat server.xml settings and the war contexts
031:         initialized during startup.
032:         <p>
033:         This config interceptor is enabled by inserting an IISConfig
034:         element in the <b>&lt;ContextManager&gt;</b> tag body inside
035:         the server.xml file like so:
036:         <pre>
037:         * < ContextManager ... >
038:         *   ...
039:         *   <<b>IISConfig</b> <i>options</i> />
040:         *   ...
041:         * < /ContextManager >
042:         </pre>
043:         where <i>options</i> can include any of the following attributes:
044:         <ul>
045:         <li><b>configHome</b> - default parent directory for the following paths.
046:         If not set, this defaults to TOMCAT_HOME. Ignored
047:         whenever any of the following paths is absolute.
048:         </li>
049:         <li><b>regConfig</b> - path to use for writing IIS isapi_redirect registry
050:         file. If not set, defaults to
051:         "conf/auto/iis_redirect.reg".</li>
052:         <li><b>workersConfig</b> - path to workers.properties file used by 
053:         isapi_redirect. If not set, defaults to
054:         "conf/jk/workers.properties".</li>
055:         <li><b>uriConfig</b> - path to use for writing IIS isapi_redirect uriworkermap
056:         file. If not set, defaults to
057:         "conf/auto/uriworkermap.properties".</li>
058:         <li><b>jkLog</b> - path to log file to be used by isapi_redirect.</li>
059:         <li><b>jkDebug</b> - Loglevel setting.  May be debug, info, error, or emerg.
060:         If not set, defaults to emerg.</li>
061:         <li><b>jkWorker</b> The desired worker.  Must be set to one of the workers
062:         defined in the workers.properties file. "ajp12", "ajp13"
063:         or "inprocess" are the workers found in the default
064:         workers.properties file. If not specified, defaults
065:         to "ajp13" if an Ajp13Interceptor is in use, otherwise
066:         it defaults to "ajp12".</li>
067:         <li><b>forwardAll</b> - If true, forward all requests to Tomcat. This helps
068:         insure that all the behavior configured in the web.xml
069:         file functions correctly.  If false, let IIS serve
070:         static resources assuming it has been configured
071:         to do so. The default is true.
072:         Warning: When false, some configuration in
073:         the web.xml may not be duplicated in IIS.
074:         Review the uriworkermap file to see what
075:         configuration is actually being set in IIS.</li>
076:         <li><b>noRoot</b> - If true, the root context is not mapped to
077:         Tomcat.  If false and forwardAll is true, all requests
078:         to the root context are mapped to Tomcat. If false and
079:         forwardAll is false, only JSP and servlets requests to
080:         the root context are mapped to Tomcat. When false,
081:         to correctly serve Tomcat's root context you must also
082:         modify the Home Directory setting in IIS
083:         to point to Tomcat's root context directory.
084:         Otherwise some content, such as the root index.html,
085:         will be served by IIS before isapi_redirect gets a chance
086:         to claim the request and pass it to Tomcat.
087:         The default is true.</li>
088:         </ul>
089:         <p>
090:         @author Costin Manolache
091:         @author Larry Isaacs
092:         @author Gal Shachor
093:         @author Bill Barker
094:         */
095:        public class IISConfig extends BaseJkConfig {
096:            private static org.apache.juli.logging.Log log = org.apache.juli.logging.LogFactory
097:                    .getLog(IISConfig.class);
098:
099:            public static final String WORKERS_CONFIG = "/conf/jk/workers.properties";
100:            public static final String URI_WORKERS_MAP_CONFIG = "/conf/auto/uriworkermap.properties";
101:            public static final String ISAPI_LOG_LOCATION = "/logs/iis_redirect.log";
102:            public static final String ISAPI_REG_FILE = "/conf/auto/iis_redirect.reg";
103:
104:            private File regConfig = null;
105:            private File uriConfig = null;
106:
107:            public IISConfig() {
108:            }
109:
110:            //-------------------- Properties --------------------
111:
112:            /**
113:                set the path to the output file for the auto-generated
114:                isapi_redirect registry file.  If this path is relative
115:                then getRegConfig() will resolve it absolutely against
116:                the getConfigHome() path.
117:                <p>
118:                @param path String path to a file
119:             */
120:            public void setRegConfig(String path) {
121:                regConfig = (path == null) ? null : new File(path);
122:            }
123:
124:            /**
125:                set a path to the uriworkermap.properties file.
126:                @param path String path to uriworkermap.properties file
127:             */
128:            public void setUriConfig(String path) {
129:                uriConfig = (path == null ? null : new File(path));
130:            }
131:
132:            // -------------------- Initialize/guess defaults --------------------
133:
134:            /** Initialize defaults for properties that are not set
135:            explicitely
136:             */
137:            protected void initProperties() {
138:                super .initProperties();
139:
140:                regConfig = getConfigFile(regConfig, configHome, ISAPI_REG_FILE);
141:                workersConfig = getConfigFile(workersConfig, configHome,
142:                        WORKERS_CONFIG);
143:                uriConfig = getConfigFile(uriConfig, configHome,
144:                        URI_WORKERS_MAP_CONFIG);
145:                jkLog = getConfigFile(jkLog, configHome, ISAPI_LOG_LOCATION);
146:            }
147:
148:            // -------------------- Generate config --------------------
149:
150:            protected PrintWriter getWriter() throws IOException {
151:                String abUriConfig = uriConfig.getAbsolutePath();
152:                return new PrintWriter(new FileWriter(abUriConfig, append));
153:            }
154:
155:            protected boolean generateJkHead(PrintWriter mod_jk) {
156:                try {
157:                    PrintWriter regfile = new PrintWriter(new FileWriter(
158:                            regConfig));
159:                    log.info("Generating IIS registry file = " + regConfig);
160:                    generateRegistrySettings(regfile);
161:                    regfile.close();
162:                } catch (IOException iex) {
163:                    log.warn("Unable to generate registry file " + regConfig);
164:                    return false;
165:                }
166:                log.info("Generating IIS URI worker map file = " + uriConfig);
167:                generateUriWorkerHeader(mod_jk);
168:                return true;
169:            }
170:
171:            // -------------------- Config sections  --------------------
172:
173:            /** Writes the registry settings required by the IIS connector
174:             */
175:            private void generateRegistrySettings(PrintWriter regfile) {
176:                regfile.println("REGEDIT4");
177:                regfile.println();
178:                regfile
179:                        .println("[HKEY_LOCAL_MACHINE\\SOFTWARE\\Apache Software Foundation\\Jakarta Isapi Redirector\\1.0]");
180:                regfile
181:                        .println("\"extension_uri\"=\"/jakarta/isapi_redirect.dll\"");
182:                regfile.println("\"log_file\"=\""
183:                        + dubleSlash(jkLog.toString()) + "\"");
184:                regfile.println("\"log_level\"=\"" + jkDebug + "\"");
185:                regfile.println("\"worker_file\"=\""
186:                        + dubleSlash(workersConfig.toString()) + "\"");
187:                regfile.println("\"worker_mount_file\"=\""
188:                        + dubleSlash(uriConfig.toString()) + "\"");
189:            }
190:
191:            /** Writes the header information to the uriworkermap file
192:             */
193:            private void generateUriWorkerHeader(PrintWriter uri_worker) {
194:                uri_worker
195:                        .println("###################################################################");
196:                uri_worker.println("# Auto generated configuration. Dated: "
197:                        + new Date());
198:                uri_worker
199:                        .println("###################################################################");
200:                uri_worker.println();
201:
202:                uri_worker.println("#");
203:                uri_worker
204:                        .println("# Default worker to be used through our mappings");
205:                uri_worker.println("#");
206:                uri_worker.println("default.worker=" + jkWorker);
207:                uri_worker.println();
208:            }
209:
210:            /** Forward all requests for a context to tomcat.
211:            The default.
212:             */
213:            protected void generateStupidMappings(Context context,
214:                    PrintWriter uri_worker) {
215:                String ctxPath = context.getPath();
216:                String nPath = ("".equals(ctxPath)) ? "/" : ctxPath;
217:
218:                if (noRoot && "".equals(ctxPath)) {
219:                    log.debug("Ignoring root context in forward-all mode  ");
220:                    return;
221:                }
222:
223:                // map all requests for this context to Tomcat
224:                uri_worker.println(nPath + "=$(default.worker)");
225:                if ("".equals(ctxPath)) {
226:                    uri_worker.println(nPath + "*=$(default.worker)");
227:                    uri_worker
228:                            .println("# Note: To correctly serve the Tomcat's root context, IIS's Home Directory must");
229:                    uri_worker.println("# must be set to: \""
230:                            + getAbsoluteDocBase(context) + "\"");
231:                } else
232:                    uri_worker.println(nPath + "/*=$(default.worker)");
233:            }
234:
235:            protected void generateContextMappings(Context context,
236:                    PrintWriter uri_worker) {
237:                String ctxPath = context.getPath();
238:                String nPath = ("".equals(ctxPath)) ? "/" : ctxPath;
239:
240:                if (noRoot && "".equals(ctxPath)) {
241:                    log.debug("Ignoring root context in forward-all mode  ");
242:                    return;
243:                }
244:
245:                // Static files will be served by IIS
246:                uri_worker.println();
247:                uri_worker
248:                        .println("#########################################################");
249:                uri_worker.println("# Auto configuration for the " + nPath
250:                        + " context.");
251:                uri_worker
252:                        .println("#########################################################");
253:                uri_worker.println();
254:
255:                // Static mappings are not set in uriworkermap, but must be set with IIS admin.
256:
257:                // InvokerInterceptor - it doesn't have a container,
258:                // but it's implemented using a special module.
259:
260:                // XXX we need to better collect all mappings
261:
262:                if (context.getLoginConfig() != null) {
263:                    String loginPage = context.getLoginConfig().getLoginPage();
264:                    if (loginPage != null) {
265:                        int lpos = loginPage.lastIndexOf("/");
266:                        String jscurl = loginPage.substring(0, lpos + 1)
267:                                + "j_security_check";
268:                        addMapping(ctxPath, jscurl, uri_worker);
269:                    }
270:                }
271:                String[] servletMaps = context.findServletMappings();
272:                for (int ii = 0; ii < servletMaps.length; ii++) {
273:                    addMapping(ctxPath, servletMaps[ii], uri_worker);
274:                }
275:            }
276:
277:            /** Add an IIS extension mapping.
278:             */
279:            protected boolean addMapping(String ctxPath, String ext,
280:                    PrintWriter uri_worker) {
281:                if (log.isDebugEnabled())
282:                    log.debug("Adding extension map for " + ctxPath + "/*."
283:                            + ext);
284:                if (!ext.startsWith("/"))
285:                    ext = "/" + ext;
286:                if (ext.length() > 1)
287:                    uri_worker.println(ctxPath + "/*." + ext
288:                            + "=$(default.worker)");
289:                return true;
290:            }
291:
292:            /** Add a fulling specified IIS mapping.
293:             */
294:            protected boolean addMapping(String fullPath, PrintWriter uri_worker) {
295:                if (log.isDebugEnabled())
296:                    log.debug("Adding map for " + fullPath);
297:                uri_worker.println(fullPath + "=$(default.worker)");
298:                return true;
299:            }
300:
301:            // -------------------- Utils --------------------
302:
303:            private String dubleSlash(String in) {
304:                StringBuffer sb = new StringBuffer();
305:
306:                for (int i = 0; i < in.length(); i++) {
307:                    char ch = in.charAt(i);
308:                    if ('\\' == ch) {
309:                        sb.append("\\\\");
310:                    } else {
311:                        sb.append(ch);
312:                    }
313:                }
314:
315:                return sb.toString();
316:            }
317:
318:        }
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