Mercurial Hosting > luan
annotate src/luan/host/WebHandler.java @ 1314:51a1987b55a3
don't use NotFound handler
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Tue, 29 Jan 2019 19:10:39 -0700 |
| parents | d41997776788 |
| children | 5763597ca5c0 |
| rev | line source |
|---|---|
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
|
1 package luan.host; |
| 1135 | 2 |
| 3 import java.io.File; | |
| 4 import java.io.IOException; | |
| 1202 | 5 import java.lang.ref.Reference; |
| 6 import java.lang.ref.SoftReference; | |
| 7 //import java.lang.ref.WeakReference; | |
| 1230 | 8 import java.lang.ref.ReferenceQueue; |
| 1135 | 9 import java.util.Map; |
| 10 import java.util.HashMap; | |
| 11 import org.slf4j.Logger; | |
| 12 import org.slf4j.LoggerFactory; | |
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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13 import luan.webserver.Handler; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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14 import luan.webserver.Server; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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15 import luan.webserver.Request; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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16 import luan.webserver.Response; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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17 import luan.webserver.handlers.IndexHandler; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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18 import luan.webserver.handlers.ListHandler; |
| 1135 | 19 import luan.Luan; |
| 20 import luan.LuanState; | |
| 21 import luan.LuanException; | |
| 22 import luan.LuanTable; | |
| 23 import luan.LuanFunction; | |
| 24 import luan.modules.IoLuan; | |
| 25 import luan.modules.JavaLuan; | |
| 26 import luan.modules.PackageLuan; | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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27 import luan.modules.http.LuanHandler; |
| 1135 | 28 |
| 29 | |
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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30 public class WebHandler implements Handler { |
| 1135 | 31 private static final Logger logger = LoggerFactory.getLogger(WebHandler.class); |
| 32 | |
| 1230 | 33 private static class LuanRef { |
| 1231 | 34 private final Handler handler; |
| 35 private final LuanHandler luanHandler; | |
| 1230 | 36 |
| 1264 | 37 private LuanRef(Handler handler,LuanHandler luanHandler) { |
| 1231 | 38 this.handler = handler; |
| 39 this.luanHandler = luanHandler; | |
| 1230 | 40 } |
| 41 } | |
| 42 | |
| 43 private static final ReferenceQueue<LuanRef> queue = new ReferenceQueue<LuanRef>(); | |
| 44 | |
| 45 private static class MyReference extends SoftReference<LuanRef> { | |
| 1264 | 46 private LuanHandler luanHandler; |
| 1230 | 47 |
| 48 private MyReference(LuanRef lr) { | |
| 49 super(lr,queue); | |
| 1264 | 50 this.luanHandler = lr.luanHandler; |
| 1230 | 51 } |
| 52 } | |
| 53 | |
| 54 private static void sweep() { | |
| 55 while(true) { | |
| 56 MyReference ref = (MyReference)queue.poll(); | |
| 57 if( ref == null ) | |
| 58 return; | |
| 1232 | 59 //logger.info("sweep"); |
| 1264 | 60 ref.luanHandler.close(); |
| 61 ref.luanHandler = null; | |
| 1230 | 62 } |
| 63 } | |
| 64 | |
| 65 | |
| 1202 | 66 public static String allowJavaFileName = "allow_java"; // change for security |
| 1230 | 67 private static final Map<String,MyReference> siteMap = new HashMap<String,MyReference>(); |
| 1202 | 68 private static String sitesDir = null; |
| 1135 | 69 |
| 70 public static boolean isServing() { | |
| 71 return sitesDir != null; | |
| 72 } | |
| 73 | |
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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74 public WebHandler(String dir) { |
| 1135 | 75 if( sitesDir != null ) |
| 76 throw new RuntimeException("already set"); | |
| 77 if( !new File(dir).exists() ) | |
| 78 throw new RuntimeException(); | |
| 1230 | 79 sitesDir = dir; |
| 1135 | 80 } |
| 81 | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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82 public Response handle(Request request) { |
|
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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83 String host = (String)request.headers.get("host"); |
|
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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84 int i = host.indexOf(':'); |
|
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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85 String domain = i == -1 ? host : host.substring(0,i); |
| 1135 | 86 // System.out.println("handle "+domain); |
| 1230 | 87 LuanRef lr = getSite(domain); |
| 88 if( lr == null ) | |
| 1202 | 89 return null; |
| 1231 | 90 return lr.handler.handle(request); |
| 1135 | 91 } |
| 92 | |
| 93 public static Object runLuan(String domain,String sourceText,String sourceName) throws LuanException { | |
| 1230 | 94 LuanRef lr = getSite(domain); |
| 1231 | 95 return lr.luanHandler.runLuan(sourceText,sourceName); |
| 1135 | 96 } |
| 97 | |
| 98 public static Object callSite(String domain,String fnName,Object... args) throws LuanException { | |
| 1230 | 99 LuanRef lr = getSite(domain); |
| 1231 | 100 return lr.luanHandler.call_rpc(fnName,args); |
| 1135 | 101 } |
| 102 | |
| 1230 | 103 private static LuanRef getSite(String domain) { |
| 1135 | 104 synchronized(siteMap) { |
| 1230 | 105 Reference<LuanRef> ref = siteMap.get(domain); |
| 106 LuanRef lr = ref==null ? null : ref.get(); | |
| 107 if( lr == null ) { | |
| 1203 | 108 //if(ref!=null) logger.info("gc "+domain); |
| 1135 | 109 if( sitesDir==null ) |
| 110 throw new NullPointerException("sitesDir"); | |
| 111 File dir = new File(sitesDir,domain); | |
| 112 if( !dir.exists() /* && !recover(dir) */ ) | |
| 113 return null; | |
| 1230 | 114 sweep(); |
| 1231 | 115 lr = newSite(dir.toString(),domain); |
| 1230 | 116 siteMap.put(domain,new MyReference(lr)); |
| 1135 | 117 } |
| 1230 | 118 return lr; |
| 1135 | 119 } |
| 120 } | |
| 121 /* | |
| 122 private static boolean recover(File dir) { | |
| 123 File backups = new File(dir.getParentFile().getParentFile(),"backups"); | |
| 124 if( !backups.exists() ) | |
| 125 return false; | |
| 126 String name = dir.getName(); | |
| 127 File from = null; | |
| 128 for( File backup : backups.listFiles() ) { | |
| 129 File d = new File(backup,"current/"+name); | |
| 130 if( d.exists() && (from==null || from.lastModified() < d.lastModified()) ) | |
| 131 from = d; | |
| 132 } | |
| 133 if( from == null ) | |
| 134 return false; | |
| 135 if( !from.renameTo(dir) ) | |
| 136 throw new RuntimeException("couldn't rename "+from+" to "+dir); | |
| 137 logger.info("recovered "+name+" from "+from); | |
| 138 return true; | |
| 139 } | |
| 140 */ | |
| 141 static LuanTable initLuan(LuanState luan,String dir,String domain) { | |
| 142 LuanTable init; | |
| 143 try { | |
| 144 init = (LuanTable)luan.eval( | |
| 145 "local Luan = require 'luan:Luan.luan'\n" | |
| 146 +"local f = Luan.load_file 'classpath:luan/host/Init.luan'\n" | |
| 147 +"return f('"+dir+"','"+domain+"')\n" | |
| 148 ); | |
| 149 } catch(LuanException e) { | |
| 150 throw new RuntimeException(e); | |
| 151 } | |
| 152 File allowJavaFile = new File(dir,"site/private/"+allowJavaFileName); | |
| 153 if( !allowJavaFile.exists() ) { | |
| 154 JavaLuan.setSecurity( luan, javaSecurity ); | |
| 155 IoLuan.setSecurity( luan, ioSecurity(dir) ); | |
| 156 } | |
| 157 return init; | |
| 158 } | |
| 159 | |
| 1231 | 160 private static LuanRef newSite(String dir,String domain) { |
| 1135 | 161 LuanState luan = new LuanState(); |
| 162 LuanTable init = initLuan(luan,dir,domain); | |
| 163 | |
| 164 String loggerRoot = (String)init.rawGet("logger_root"); | |
|
1263
382c444a6c77
add Http.eval_in_root and Http.handle_error
Franklin Schmidt <fschmidt@gmail.com>
parents:
1256
diff
changeset
|
165 LuanHandler luanHandler = new LuanHandler(luan,loggerRoot); |
| 1135 | 166 |
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
|
167 Handler handler = luanHandler; |
|
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
|
168 handler = new IndexHandler(handler); |
| 1135 | 169 |
| 1202 | 170 String logDir = dir + "/site/private/local/logs/web"; |
| 1135 | 171 new File(logDir).mkdirs(); |
| 172 | |
| 1264 | 173 return new LuanRef(handler,luanHandler); |
| 1135 | 174 } |
| 175 | |
| 176 public static void removeHandler(String domain) throws Exception { | |
| 177 synchronized(siteMap) { | |
| 1230 | 178 Reference<LuanRef> ref = siteMap.remove(domain); |
| 179 LuanRef lr = ref==null ? null : ref.get(); | |
| 180 if( lr != null ) { | |
| 1264 | 181 lr.luanHandler.close(); |
| 1135 | 182 } |
| 183 } | |
| 184 } | |
| 185 | |
| 186 public static void loadHandler(String domain) { | |
| 187 getSite(domain); | |
| 188 } | |
| 189 | |
| 190 private static final IoLuan.Security ioSecurity(String dir) { | |
|
1174
bdf27aa2a65c
fix luanhost security bug
Franklin Schmidt <fschmidt@gmail.com>
parents:
1136
diff
changeset
|
191 final String siteUri = "file:" + dir + "/site"; |
| 1135 | 192 return new IoLuan.Security() { |
| 193 public void check(LuanState luan,String name) throws LuanException { | |
| 194 if( name.startsWith("file:") ) { | |
| 195 if( name.contains("..") ) | |
| 196 throw new LuanException("Security violation - '"+name+"' contains '..'"); | |
|
1174
bdf27aa2a65c
fix luanhost security bug
Franklin Schmidt <fschmidt@gmail.com>
parents:
1136
diff
changeset
|
197 if( !(name.equals(siteUri) || name.startsWith(siteUri+"/")) ) |
| 1135 | 198 throw new LuanException("Security violation - '"+name+"' outside of site dir"); |
| 199 } | |
| 200 else if( name.startsWith("classpath:luan/host/") ) { | |
| 201 throw new LuanException("Security violation"); | |
| 202 } | |
| 203 else if( name.startsWith("os:") || name.startsWith("bash:") ) { | |
| 204 throw new LuanException("Security violation"); | |
| 205 } | |
| 206 } | |
| 207 }; | |
| 208 } | |
| 209 | |
| 210 private static final JavaLuan.Security javaSecurity = new JavaLuan.Security() { | |
| 211 public void check(LuanState luan,String name) throws LuanException { | |
| 1238 | 212 if( !(name.startsWith("luan:") || name.matches("^file:[^/]+$")) ) |
| 1135 | 213 throw new LuanException("Security violation - only luan:* modules can load Java"); |
| 214 if( name.equals("luan:logging/Logging") ) | |
| 215 throw new LuanException("Security violation - cannot reload Logging"); | |
| 216 } | |
| 217 }; | |
| 218 } |