interpolation code

1 files changed, 22 insertions, 6 deletions

diff --git a/kiki.hs b/kiki.hs
index 4266ac5..fe8593e 100644
--- a/kiki.hs
+++ b/kiki.hs
@@ -1160,11 +1160,16 @@ kiki "init-key" args = do
         writeInputFileL (InputFileContext secring pubring)
                         HomePub
                         ( encode $ Message [] )
+
+    -- TODO: These should be read from a configuration file
+    let torpath = fromMaybe "" rootdir ++ "/var/lib/tor/samizdat/private_key"
+        sshcpath0 = fromMaybe "" rootdir ++ "/root/.ssh/id_rsa"
+        sshspath0 = fromMaybe "" rootdir ++ "/etc/ssh/ssh_host_rsa_key"
+        ipsecpath0 = fromMaybe "" rootdir ++ "/etc/ipsec.d/private/%(onion).pem"
     
     -- First, we ensure that the tor key exists and is imported
     -- so that we know where to put the strongswan key.
-    let torpath = fromMaybe "" rootdir ++ "/var/lib/tor/samizdat/private_key"
-        passfd = fmap (FileDesc . read) $ lookup "passphrase-fd" args
+    let passfd = fmap (FileDesc . read) $ lookup "passphrase-fd" args
         buildStreamInfo rtyp ftyp = StreamInfo { typ = ftyp
                                                , fill = rtyp
                                                , spill = KF_All
@@ -1199,10 +1204,10 @@ kiki "init-key" args = do
     let oname = do wk <- rtWorkingKey rt
                    onionNameForContact (keykey wk) (rtKeyDB rt)
     flip (maybe $ error "Missing tor key") oname $ \oname -> do
-    let sshcpath = fromMaybe "" rootdir ++ "/root/.ssh/id_rsa"
-        sshspath = fromMaybe "" rootdir ++ "/etc/ssh/ssh_host_rsa_key"
-        ipsecpath = fromMaybe "" rootdir ++ "/etc/ipsec.d/private/"++oname++".pem"
-        op2 = op
+    let [ sshcpath , sshspath , ipsecpath ]
+            = map (interp (Map.fromList [("onion",oname)]))
+                  [ sshcpath0, sshspath0, ipsecpath0 ]
+    let op2 = op
              { opFiles = Map.fromList $
                 [ ( HomeSec, buildStreamInfo KF_All KeyRingFile )
                 , ( HomePub, (buildStreamInfo KF_All KeyRingFile) { access = Pub } )
@@ -1253,6 +1258,17 @@ commands =
  , ( "init-key", "initialize the samizdat key ring")
  ]
 
+interp vars raw = es >>= interp1
+ where
+    gs = groupBy (\_ c -> c/='%') raw
+    es = dropWhile null $ gobbleEscapes ("":gs)
+            where gobbleEscapes (a:"%":b:bs) = (a++b) : gobbleEscapes bs
+                  gobbleEscapes (g:gs)       = g : gobbleEscapes gs
+                  gobbleEscapes []           = []
+    interp1 ('%':'(':str) = fromMaybe "" (Map.lookup key vars) ++ drop 1 rest
+                            where (key,rest) = break (==')') str
+    interp1 plain = plain
+
 main = do
     dotlock_init
     args_raw <- getArgs