Mercurial Hosting > luan
annotate src/luan/host/WebHandler.java @ 1333:25746915a241
merge Luan and LuanState
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Tue, 12 Feb 2019 22:33:40 -0700 |
| parents | 11b7e11f9ed5 |
| children | e0cf0d108a77 |
| rev | line source |
|---|---|
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implement WebHandler for nginx
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parents:
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1 package luan.host; |
| 1135 | 2 |
| 3 import java.io.File; | |
| 4 import org.slf4j.Logger; | |
| 5 import org.slf4j.LoggerFactory; | |
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6 import luan.webserver.Handler; |
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parents:
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7 import luan.webserver.Request; |
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8 import luan.webserver.Response; |
| 1315 | 9 import luan.webserver.handlers.DomainHandler; |
| 1330 | 10 import luan.Luan; |
| 1135 | 11 import luan.LuanException; |
| 12 import luan.LuanTable; | |
| 1330 | 13 import luan.LuanFunction; |
| 14 import luan.LuanClosure; | |
| 15 import luan.modules.BasicLuan; | |
|
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parents:
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16 import luan.modules.http.LuanHandler; |
| 1332 | 17 import luan.modules.logging.Log4j; |
| 1135 | 18 |
| 19 | |
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parents:
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diff
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20 public class WebHandler implements Handler { |
| 1135 | 21 private static final Logger logger = LoggerFactory.getLogger(WebHandler.class); |
| 22 | |
| 1330 | 23 private static final class LuanRuntimeException extends RuntimeException { |
| 24 final LuanException e; | |
| 25 | |
| 26 LuanRuntimeException(LuanException e) { | |
| 27 this.e = e; | |
| 28 } | |
| 29 } | |
| 30 | |
| 1315 | 31 private static final DomainHandler.Factory factory = new DomainHandler.Factory() { |
| 32 public Handler newHandler(String domain) { | |
| 33 File dir = new File(sitesDir,domain); | |
| 34 if( !dir.exists() /* && !recover(dir) */ ) | |
| 35 return null; | |
| 36 String dirStr = dir.toString(); | |
| 1230 | 37 |
| 1315 | 38 String logDir = dirStr + "/site/private/local/logs/web"; |
| 39 new File(logDir).mkdirs(); | |
| 1230 | 40 |
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41 Luan luan = new Luan(); |
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42 try { |
| 1332 | 43 Log4j.newLoggerRepository(luan); |
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44 } catch(LuanException e) { |
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45 throw new RuntimeException(e); |
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46 } |
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47 initLuan(luan,dirStr,domain,true); |
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48 return new LuanHandler(luan); |
| 1230 | 49 } |
| 1315 | 50 }; |
| 1230 | 51 |
| 1330 | 52 public static String securityPassword = "password"; // change for security |
| 1315 | 53 private static final DomainHandler domainHandler = new DomainHandler(factory); |
| 1202 | 54 private static String sitesDir = null; |
| 1135 | 55 |
| 56 public static boolean isServing() { | |
| 57 return sitesDir != null; | |
| 58 } | |
| 59 | |
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parents:
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diff
changeset
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60 public WebHandler(String dir) { |
| 1135 | 61 if( sitesDir != null ) |
| 62 throw new RuntimeException("already set"); | |
| 63 if( !new File(dir).exists() ) | |
| 64 throw new RuntimeException(); | |
| 1230 | 65 sitesDir = dir; |
| 1135 | 66 } |
| 67 | |
| 1315 | 68 @Override public Response handle(Request request) { |
| 69 return domainHandler.handle(request); | |
| 1135 | 70 } |
| 71 | |
| 72 public static Object runLuan(String domain,String sourceText,String sourceName) throws LuanException { | |
| 1315 | 73 LuanHandler luanHandler = (LuanHandler)domainHandler.getHandler(domain); |
| 74 return luanHandler.runLuan(sourceText,sourceName); | |
| 1135 | 75 } |
| 76 | |
| 77 public static Object callSite(String domain,String fnName,Object... args) throws LuanException { | |
| 1315 | 78 LuanHandler luanHandler = (LuanHandler)domainHandler.getHandler(domain); |
| 79 return luanHandler.call_rpc(fnName,args); | |
| 1135 | 80 } |
| 81 | |
| 82 /* | |
| 83 private static boolean recover(File dir) { | |
| 84 File backups = new File(dir.getParentFile().getParentFile(),"backups"); | |
| 85 if( !backups.exists() ) | |
| 86 return false; | |
| 87 String name = dir.getName(); | |
| 88 File from = null; | |
| 89 for( File backup : backups.listFiles() ) { | |
| 90 File d = new File(backup,"current/"+name); | |
| 91 if( d.exists() && (from==null || from.lastModified() < d.lastModified()) ) | |
| 92 from = d; | |
| 93 } | |
| 94 if( from == null ) | |
| 95 return false; | |
| 96 if( !from.renameTo(dir) ) | |
| 97 throw new RuntimeException("couldn't rename "+from+" to "+dir); | |
| 98 logger.info("recovered "+name+" from "+from); | |
| 99 return true; | |
| 100 } | |
| 101 */ | |
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parents:
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102 static void initLuan(Luan luan,String dir,String domain,boolean logging) { |
| 1330 | 103 security(luan,dir); |
| 1135 | 104 try { |
| 1330 | 105 LuanFunction fn = BasicLuan.load_file(luan,"classpath:luan/host/init.luan"); |
| 106 fn.call(luan,new Object[]{dir,domain,logging}); | |
| 1135 | 107 } catch(LuanException e) { |
| 1330 | 108 throw new LuanRuntimeException(e); |
| 1135 | 109 } |
| 110 } | |
| 111 | |
| 1315 | 112 public static void removeHandler(String domain) { |
| 113 domainHandler.removeHandler(domain); | |
| 1135 | 114 } |
| 115 | |
| 1330 | 116 public static void loadHandler(String domain) throws LuanException { |
| 117 try { | |
| 118 domainHandler.getHandler(domain); | |
| 119 } catch(LuanRuntimeException e) { | |
| 120 throw e.e; | |
| 121 } | |
| 1135 | 122 } |
| 123 | |
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124 private static final void security(Luan luan,String dir) { |
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125 final String siteUri = "file:" + dir + "/site"; |
| 1330 | 126 Luan.Security security = new Luan.Security() { |
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parents:
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127 public void check(Luan luan,LuanClosure closure,String op,Object... args) |
| 1330 | 128 throws LuanException |
| 129 { | |
| 130 if( op.equals("uri") ) { | |
| 131 String name = (String)args[0]; | |
| 132 if( name.startsWith("file:") ) { | |
| 133 if( name.contains("..") ) | |
| 134 throw new LuanException("Security violation - '"+name+"' contains '..'"); | |
| 135 if( !(name.equals(siteUri) || name.startsWith(siteUri+"/")) ) | |
| 136 throw new LuanException("Security violation - '"+name+"' outside of site dir"); | |
| 137 } | |
| 138 else if( name.startsWith("classpath:luan/host/") ) { | |
| 139 throw new LuanException("Security violation"); | |
| 140 } | |
| 141 else if( name.startsWith("os:") || name.startsWith("bash:") ) { | |
| 142 throw new LuanException("Security violation"); | |
| 143 } | |
| 144 } else { | |
| 145 String name = closure.sourceName; | |
| 146 if( !( | |
| 147 name.startsWith("luan:") | |
| 148 || name.startsWith("classpath:") | |
| 149 || name.matches("^file:[^/]+$") | |
| 150 ) ) | |
| 151 throw new LuanException("Security violation - only luan:* modules can load Java"); | |
| 152 if( name.equals("luan:logging/Logging") ) | |
| 153 throw new LuanException("Security violation - cannot reload Logging"); | |
| 1135 | 154 } |
| 155 } | |
| 156 }; | |
| 1330 | 157 Luan.setSecurity(luan,security); |
| 1135 | 158 } |
| 159 | |
| 160 } |