Commit | Line | Data |
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eb81f42e FT |
1 | package dolda.bsvc; |
2 | ||
3 | import dolda.jsvc.*; | |
4 | import dolda.jsvc.util.*; | |
5 | import java.io.*; | |
6 | import bsh.Interpreter; | |
7 | ||
8 | public class ShellPage extends SimpleWriter { | |
9 | private static class Console implements bsh.ConsoleInterface { | |
10 | ByteArrayOutputStream obuf = new ByteArrayOutputStream(); | |
11 | ByteArrayOutputStream ebuf = new ByteArrayOutputStream(); | |
12 | Reader in = new StringReader(""); | |
13 | PrintStream out; | |
14 | PrintStream err; | |
15 | { | |
16 | try { | |
17 | out = new PrintStream(obuf, false, "UTF-8"); | |
18 | err = new PrintStream(ebuf, false, "UTF-8"); | |
19 | } catch(UnsupportedEncodingException e) { | |
20 | throw(new Error(e)); | |
21 | } | |
22 | } | |
23 | ||
24 | public void error(Object msg) { | |
25 | getErr().println(msg); | |
26 | } | |
27 | ||
28 | public void print(Object o) { | |
29 | getOut().print(o); | |
30 | } | |
31 | ||
32 | public void println(Object o) { | |
33 | getOut().println(o); | |
34 | } | |
35 | ||
36 | public PrintStream getOut() { | |
37 | return(out); | |
38 | } | |
39 | ||
40 | public PrintStream getErr() { | |
41 | return(err); | |
42 | } | |
43 | ||
44 | public Reader getIn() { | |
45 | return(in); | |
46 | } | |
47 | } | |
48 | ||
49 | public void respond(Request req, PrintWriter out) { | |
50 | MultiMap<String, String> params = req.params(); | |
51 | String cmd = params.get("cmd"); | |
52 | ||
53 | out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); | |
54 | out.println("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">"); | |
55 | out.println("<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en-US\">"); | |
56 | out.println("<head>"); | |
57 | out.println("<title>Shell</title>"); | |
58 | out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"css\" />"); | |
59 | out.println("</head>"); | |
60 | out.println("<body>"); | |
61 | out.println("<h1>Shell</h1>"); | |
62 | if((req.method() == "POST") && (cmd != null)) { | |
63 | Console cons = new Console(); | |
64 | Interpreter ip = new Interpreter(cons); | |
65 | Object resp; | |
66 | try { | |
67 | ip.set("req", req); | |
68 | resp = ip.eval(cmd); | |
69 | out.println("<pre>"); | |
70 | out.println(Misc.htmlq((resp == null)?"(null)":(resp.toString()))); | |
71 | out.println("</pre>"); | |
72 | } catch(bsh.EvalError exc) { | |
73 | out.println("<h2>Evaluation error</h2>"); | |
74 | out.println("<pre>"); | |
75 | out.print(exc.toString()); | |
76 | out.println("</pre>"); | |
77 | if(exc instanceof bsh.TargetError) { | |
78 | bsh.TargetError te = (bsh.TargetError)exc; | |
79 | out.println("<h3>Target error</h3>"); | |
80 | out.println("<pre>"); | |
81 | te.getTarget().printStackTrace(out); | |
82 | out.println("</pre>"); | |
83 | } | |
84 | } | |
85 | String eo = new String(cons.obuf.toByteArray(), Misc.utf8); | |
86 | String ee = new String(cons.ebuf.toByteArray(), Misc.utf8); | |
87 | cons = null; | |
88 | if(eo.length() > 0) { | |
89 | out.println("<h2>Output</h2>"); | |
90 | out.println("<pre>"); | |
91 | out.println(Misc.htmlq(eo)); | |
92 | out.println("</pre>"); | |
93 | } | |
94 | if(ee.length() > 0) { | |
95 | out.println("<h2>Errors</h2>"); | |
96 | out.println("<pre>"); | |
97 | out.println(Misc.htmlq(ee)); | |
98 | out.println("</pre>"); | |
99 | } | |
100 | } | |
101 | out.println("<form action=\"sh\" method=\"post\">"); | |
102 | out.println("<textarea cols=\"80\" rows=\"5\" name=\"cmd\">"); | |
103 | if(cmd != null) | |
104 | out.print(cmd); | |
105 | out.println("</textarea>"); | |
106 | out.println("<input type=\"submit\" value=\"Evaluate\" />"); | |
107 | out.println("<input type=\"reset\" value=\"Reset\" />"); | |
108 | out.println("</form>"); | |
109 | out.println("</body>"); | |
110 | out.println("</html>"); | |
111 | } | |
112 | } |