Difference between revisions of "WaSh"
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| + | [[Category:Tools]] |
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| + | [http://www.informatik.uni-freiburg.de/~thiemann/haskell/WASH/ Homepage] |
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== Random Jottings on WASH == |
== Random Jottings on WASH == |
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| + | Remember all programs must be precompiled with wash2hs before compilation with ghc (there may be some tools to automate this; where?). The executable produced by ghc can be moved to cgi-bin and accessed by the browser with http://localhost/cgi-bin/executableName. |
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=== Hello world programme === |
=== Hello world programme === |
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from [http://www.informatik.uni-freiburg.de/~thiemann/WASH/user-manual.pdf draft user manual], tweaked to work with [http://www.informatik.uni-freiburg.de/~thiemann/WASH/WashNGo-2.10.tgz version 2.10 of 20061206] |
from [http://www.informatik.uni-freiburg.de/~thiemann/WASH/user-manual.pdf draft user manual], tweaked to work with [http://www.informatik.uni-freiburg.de/~thiemann/WASH/WashNGo-2.10.tgz version 2.10 of 20061206] |
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</haskell> |
</haskell> |
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| − | + | Compile with <code>ghc -pgmF wash2hs -package WashNGo --make Main</code>. |
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| − | automatically — if you put the above in <code>Main.wash</code> then <code>wash2hs Main.wash</code>, you can then <code>ghc -package WashNGo --make Main</code>. |
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Latest revision as of 11:25, 6 August 2010
Random Jottings on WASH
Remember all programs must be precompiled with wash2hs before compilation with ghc (there may be some tools to automate this; where?). The executable produced by ghc can be moved to cgi-bin and accessed by the browser with http://localhost/cgi-bin/executableName.
Hello world programme
from draft user manual, tweaked to work with version 2.10 of 20061206
module Main where
import WASH.CGI.CGI hiding (div, head, map, span)
main =
run mainCGI
mainCGI =
ask <html>
<head><title>Hello World</title></head>
<body>
<h1>Hello World</h1>
</body>
</html>
Compile with ghc -pgmF wash2hs -package WashNGo --make Main.
SELinux
To run ghc-compiled WASH CGI on Fedora (Core 6) you need to build an SELinux policy that allows CGI scripts to execute memory (because ghc runtime system execs mem).
cat <<EOF > local.te
module local 1.0;
require {
class process execmem;
type httpd_sys_script_t;
role system_r;
};
allow httpd_sys_script_t self:process execmem;
EOF
checkmodule -M -m -o local.mod local.te
semodule_package -o local.pp -m local.mod
su -c 'semodule -i local.pp'