Commit | Line | Data |
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36537ce8 FT |
1 | package dolda.jsvc.store; |
2 | ||
3 | import dolda.jsvc.*; | |
4 | import dolda.jsvc.util.Misc; | |
5 | import java.io.*; | |
6 | import java.security.*; | |
7 | import java.security.cert.Certificate; | |
8 | import java.util.*; | |
9 | ||
10 | public class Store { | |
11 | private static Map<Package, Store> interned = new WeakHashMap<Package, Store>(); | |
12 | private final Package pkg; | |
13 | private final File base; | |
14 | ||
15 | private Store(Package pkg, CodeSource src, File root) { | |
16 | this.pkg = pkg; | |
17 | String nm = pkg.getName(); | |
18 | File base = root; | |
19 | if(src != null) { | |
20 | try { | |
21 | MessageDigest fdig = MessageDigest.getInstance("MD5"); | |
22 | for(Certificate cert : src.getCertificates()) { | |
23 | MessageDigest cdig = MessageDigest.getInstance("MD5"); | |
24 | cdig.update(cert.getEncoded()); | |
25 | fdig.update(cdig.digest()); | |
26 | } | |
27 | byte[] fp = fdig.digest(); | |
28 | StringBuilder buf = new StringBuilder(); | |
29 | for(byte b : fp) { | |
30 | buf.append(Misc.int2hex((b & 0xf0) >> 4, true)); | |
31 | buf.append(Misc.int2hex(b & 0x0f, true)); | |
32 | } | |
33 | base = new File(base, buf.toString()); | |
34 | } catch(NoSuchAlgorithmException e) { | |
35 | throw(new Error(e)); | |
36 | } catch(java.security.cert.CertificateEncodingException e) { | |
37 | throw(new Error(e)); | |
38 | } | |
39 | } | |
40 | int p = 0; | |
41 | int p2; | |
42 | while((p2 = nm.indexOf('.', p)) >= 0) { | |
43 | base = new File(base, nm.substring(p, p2)); | |
44 | p = p2 + 1; | |
45 | } | |
46 | this.base = new File(base, nm.substring(p)); | |
47 | } | |
48 | ||
49 | private static File getstoreroot() { | |
50 | ThreadContext ctx = ThreadContext.current(); | |
51 | if(ctx == null) | |
52 | throw(new RuntimeException("Not running in jsvc context")); | |
53 | String bn = ctx.server().config("jsvc.storage"); | |
54 | if(bn == null) | |
55 | throw(new RuntimeException("No storage root has been configured")); | |
56 | return(new File(bn)); | |
57 | } | |
58 | ||
59 | public static Store forclass(final Class<?> cl) { | |
60 | Package pkg = cl.getPackage(); | |
61 | File root = getstoreroot(); | |
62 | Store s; | |
63 | synchronized(interned) { | |
64 | s = interned.get(pkg); | |
65 | if(s == null) { | |
66 | ProtectionDomain dom; | |
67 | dom = AccessController.doPrivileged(new PrivilegedAction<ProtectionDomain>() { | |
68 | public ProtectionDomain run() { | |
69 | try { | |
70 | return(cl.getProtectionDomain()); | |
71 | } catch(SecurityException e) { | |
72 | return(null); | |
73 | } | |
74 | } | |
75 | }); | |
76 | if(dom != null) | |
77 | s = new Store(pkg, dom.getCodeSource(), root); | |
78 | else | |
79 | s = new Store(pkg, null, root); | |
80 | interned.put(pkg, s); | |
81 | } | |
82 | } | |
83 | return(s); | |
84 | } | |
85 | } |