[git] gnupg-doc - branch, master, updated. 1b98fe626609318469df74e066d39d62ba8778a6

[by Werner Koch]

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- Log -----------------------------------------------------------------
commit 1b98fe626609318469df74e066d39d62ba8778a6
Author: Werner Koch <wk at gnupg.org>
Date:   Tue Dec 8 19:55:16 2015 +0100

    tools: Add new tool for use on k.gnupg.net

diff --git a/tools/getkey.sh b/tools/getkey.sh
new file mode 100755
index 0000000..3432b5a
--- /dev/null
+++ b/tools/getkey.sh
@@ -0,0 +1,155 @@
+#!/bin/sh
+# Retrieve a key from the keyserver and store it as a local file.
+# An option allows to run this as cronjob to refresh the existing
+# keys from the keyserver
+
+set -e
+
+pgm="$0"
+
+htdocs="/var/www/alberti/k.gnupg.net/htdocs"
+keys="/var/www/alberti/k.gnupg.net/keys"
+keyserver="hkp://keys.mayfirst.org"
+
+usage()
+{
+    cat <<EOF
+Usage: $0 [OPTIONS] [FINGERPRINTS]
+Options:
+        --cron     Refresh all keys
+        --verbose  Run in verbose mode
+        --test     Run in test environment
+EOF
+    exit $1
+}
+
+
+cronmode=no
+verbose=no
+testmode=no
+while [ $# -gt 0 ]; do
+    case "$1" in
+	# Set up `optarg'.
+	--*=*)
+	    optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'`
+	    ;;
+	*)
+	    optarg=""
+	    ;;
+    esac
+
+    case "$1" in
+	--cron)
+	    cronmode=yes
+	    ;;
+        --verbose)
+            verbose=yes
+            ;;
+        --test)
+            testmode=yes
+            ;;
+        --help)
+            usage 0
+            ;;
+	--*)
+	    usage 1 1>&2
+	    ;;
+        *)
+            break
+    esac
+    shift
+done
+
+
+if [ ! -d "$htdocs" ]; then
+  echo "$pgm: '$htdocs' not found" >&2;
+  exit 1
+fi
+if [ ! -d "$keys" ]; then
+  echo "$pgm: '$keys' not found" >&2;
+  exit 1
+fi
+if [ -z "$keyserver" ]; then
+  echo "$pgm: No keyserver configured" >&2;
+  exit 1
+fi
+if [ $cronmode = yes ]; then
+  if [ $# -ne 0 ]; then
+    echo "$pgm: Unexpected arguments in cron mode" >&2
+    usage 1
+  fi
+else
+  if [ $# -eq 0 ]; then
+    echo "$pgm: No arguments given" >&2
+    usage 1
+  fi
+fi
+if ! cd "$keys" ; then
+  echo "$pgm: cd to '$keys' failed" >&2
+  exit 1
+fi
+
+GNUPGHOME="$keys"
+export GNUPGHOME
+gpgopts="--no-permission-warning --quiet"
+
+
+errors=no
+# Note that the loop is not entered in cron mode
+while [ $# -gt 0 ]; do
+    fpr="$1"
+    shift
+    b=$(echo "$fpr" | tr -cd '[:xdigit:]')
+    if [ ${#fpr} -lt 40 -o ${#fpr} -ne ${#b} ]; then
+        echo "$pgm: '$fpr' does not look like a fingerprint" >&2
+        errors=yes
+        continue
+    fi
+    [ $verbose = yes ] && echo "$pgm: Retrieving $fpr ..." >&2
+    if ! gpg $gpgopts --keyserver $keyserver --recv-key $fpr ; then
+        echo "$pgm: error retrieving '$fpr'" >&2
+        errors=yes
+        continue
+    fi
+    [ $verbose = yes ] && echo "$pgm: Storing $fpr ..." >&2
+    if ! gpg $gpgopts --export --yes --output "$htdocs/$fpr" $fpr ; then
+        echo "$pgm: error storing '$fpr'" >&2
+        errors=yes
+        continue
+    fi
+done
+
+
+if [ "$cronmode" = yes ]; then
+  find "$htdocs" -type f -name '[0-9A-F][0-9A-F]*[0-9A-F]' -printf '%P\n' \
+    | ( while read fpr rest ; do
+        b=$(echo "$fpr" | tr -cd '[:xdigit:]')
+        if [ ${#fpr} -lt 40 -o ${#fpr} -ne ${#b} ]; then
+          echo "$pgm: '$fpr' does not look like a fingerprint" >&2
+          continue
+        fi
+        [ $verbose = yes ] && echo "$pgm: refreshing $fpr ..." >&2
+        if ! gpg $gpgopts --keyserver $keyserver --refresh-key $fpr ; then
+          echo "$pgm: error refreshing '$fpr'" >&2
+          continue
+        fi
+        [ $verbose = yes ] && echo "$pgm: Storing $fpr ..." >&2
+        if ! gpg $gpgopts --export --yes --output "$htdocs/tmp-$fpr" $fpr ; then
+           echo "$pgm: error exporting '$fpr'" >&2
+           continue
+        fi
+        if cmp  "$htdocs/tmp-$fpr" "$htdocs/$fpr"; then
+           rm "$htdocs/tmp-$fpr" || true
+        else
+           mv "$htdocs/tmp-$fpr" "$htdocs/$fpr"
+           [ $verbose = yes ] && echo "$pgm: '$fpr' has been updated" >&2
+        fi
+    done
+  )
+fi
+
+if [ $errors != no ]; then
+    echo "$pgm: error encountered during processing" >&2
+    exit 1
+fi
+exit 0

-----------------------------------------------------------------------

Summary of changes:
 tools/getkey.sh | 155 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 155 insertions(+)
 create mode 100755 tools/getkey.sh


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