mirror of
https://github.com/leahneukirchen/mblaze
synced 2024-11-11 13:10:32 +00:00
34 lines
1.1 KiB
Bash
Executable File
34 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# mverify MSG - verify a OpenPGP or SMIME message
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# Needs bash, unix2dos, gpg and openssl.
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[ "$#" -eq 0 ] && set -- .
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mshow -t "$1" | awk -v "msg=$1" '
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{ match($0, "^ *"); indent = RLENGTH }
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$2 == "text/plain" { plain++ }
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$2 == "multipart/signed" { signed = 0+$1; si = indent; next }
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signed && !content && indent == si+2 { content = 0+$1; next }
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signed && content && !signature && indent == si+2 { signature = 0+$1; type = $2 }
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function q(a) { gsub("\\47", "\47\\\47\47", a); return "\47"a"\47" }
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END {
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if (type == "" && plain) { // guess plain text armored signature
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exit(system("mshow -R " q(msg) " | gpg --verify"));
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} else if (type == "") {
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print("No signature found.")
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exit(100)
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} else if (type == "application/pgp-signature") {
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exit(system("bash -c " q("mshow -r -O " q(msg) " " q(content) \
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" | unix2dos | gpg --verify <(mshow -O " q(msg) \
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" " q(signature) " ) -")))
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} else if (type == "application/pkcs7-signature") {
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exit(system("mshow -r -O " q(msg) " " q(signed) \
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" | openssl smime -verify"))
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} else {
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print("Cannot verify signatures of type " type ".")
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exit(2)
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}
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}
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'
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