#!/bin/sh
+# * Copyright 2004 Tristan Chabredier <wwp@claws-mail.org>
+# *
+# * This file is free software; you can redistribute it and/or modify it
+# * under the terms of the GNU General Public License as published by
+# * the Free Software Foundation; either version 3 of the License, or
+# * (at your option) any later version.
+# *
+# * This program is distributed in the hope that it will be useful, but
+# * WITHOUT ANY WARRANTY; without even the implied warranty of
+# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# * General Public License for more details.
+# *
+# * You should have received a copy of the GNU General Public License
+# * along with this program; if not, write to the Free Software
+# * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# fix_date.sh helper script to fix non-standard date or add missing
+# date header to emails
+
# usage: fix_date.sh <filename> [<filename>..]
# It will replace the Date: value w/ the one picked up from more recent
# Received: field if this field resides in one line. Otherwise, it will
# If no X-Original-Date already exist, the former Date value will be set
# in such field.
-if [ $# -lt 1 ]
+VERSION="0.0.5"
+
+
+version()
+{
+ echo "$VERSION"
+ exit 0
+}
+
+usage()
+{
+ echo "usage:"
+ echo " ${0##*/} [<switches>] <filename> [<filename> ..]"
+ echo "switches:"
+ echo " --help display this help then exit"
+ echo " --version display version information then exit"
+ echo " --force always force (re-)writing of Date: header"
+ echo " --rfc force re-writing of Date: header when it's not RFC-compliant"
+ echo " --debug turn on debug information (be more verbose)"
+ echo " --strict use RFC-strict matching patterns for dates"
+ echo " -- end of switches (in case a filename starts with a -)"
+ exit $1
+}
+
+date_valid()
+{
+ test $STRICT -eq 1 && \
+ REGEXP="$DATE_REGEXP_STRICT" || \
+ REGEXP="$DATE_REGEXP"
+
+ echo "$1" | grep -qEim 1 "$REGEXP"
+ DATE_VALID=$?
+}
+
+# use --force to always (re-)write the Date header
+# otherwise, the Date header will be written if only it doesn't exist
+FORCE=0
+# use --rfc to (re-)write the Date header when it's not RFC-compliant
+# otherwise, the Date header will be written if only it doesn't exist
+RFC=0
+# use --debug to display more information about what's performed
+DEBUG=0
+# use --strict to use strict matching patterns for date validation
+STRICT=0
+# 0 = valid, always valid until --strict is used, then date_valid overrides this value
+DATE_VALID=0
+
+while [ -n "$1" ]
+do
+ case "$1" in
+ --help) usage 0;;
+ --version) version;;
+ --force) FORCE=1;;
+ --debug) DEBUG=1;;
+ --rfc) RFC=1;;
+ --strict) STRICT=1;;
+ --) shift
+ break;;
+ -*) echo "error: unrecognized switch '$1'"
+ usage 1;;
+ *) break;;
+ esac
+ shift
+done
+
+if [ $FORCE -eq 1 -a $RFC -eq 1 ]
then
- echo "usage: ${0##*/} <filename> [<filename> ..]"
- exit 1
+ echo "error: use either --force or --rfc, but not both at the same time"
+ usage 1
fi
+test $# -lt 1 && \
+ usage 1
+
TMP="/tmp/${0##*/}.tmp"
+
+DATE_REGEXP="( (Mon|Tue|Wed|Thu|Fri|Sat|Sun),)? [0-9]+ (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dev) [0-9]+ [0-9]+:[0-9]+:[0-9}+ [-+][0-9]+"
+DATE_REGEXP_STRICT="(Mon|Tue|Wed|Thu|Fri|Sat|Sun), [0-9]+ (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dev) [0-9]+ [0-9]+:[0-9]+:[0-9}+ [-+][0-9]+"
+
while [ -n "$1" ]
do
- test ! -s "$1" && \
+ # skip if file is empty or doesn't exist
+ if [ ! -s "$1" ]
+ then
+ shift
continue
+ fi
- X_ORIGINAL_DATE=$(grep -Eim 1 '^X-Original-Date: ' "$1" | cut -d ':' -f 2)
- DATE=$(grep -Eim 1 '^Date: ' "$1" | cut -d ':' -f 2)
- RECEIVED_DATE=$(grep -Eim 1 ';( (Mon|Tue|Wed|Thu|Fri|Sat|Sun),)? [0-9]+ (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dev) [0-9]+ [0-9]+:[0-9]+:[0-9}+ [-+][0-9]+' "$1" | cut -d ';' -f 2)
-# strict, day of week needed
-# RECEIVED_DATE=$(grep -Eim 1 '; (Mon|Tue|Wed|Thu|Fri|Sat|Sun), [0-9]+ (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dev) [0-9]+ [0-9]+:[0-9]+:[0-9}+ [-+][0-9]+' "$1" | cut -d ';' -f 2)
+ X_ORIGINAL_DATE=$(grep -Eim 1 '^X-Original-Date: ' "$1" | cut -d ':' -f 2-)
+ DATE=$(grep -Eim 1 '^Date: ' "$1" | cut -d ':' -f 2-)
+ test $STRICT -eq 1 && \
+ RECEIVED_DATE=$(grep -Eim 1 ";$DATE_REGEXP" "$1" | cut -d ';' -f 2) || \
+ RECEIVED_DATE=$(grep -Eim 1 "; $DATE_REGEXP_STRICT" "$1" | cut -d ';' -f 2)
FILE_DATE=$(ls -l --time-style="+%a, %d %b %Y %X %z" "$1" | tr -s ' ' ' ' | cut -d ' ' -f 6-11)
# we could also use the system date as a possible replacement
#SYSTEM_DATE="$(date -R)"
# determine which replacement date to use
if [ -z "$RECEIVED_DATE" ]
then
- # don't forget to add the leading whitespace
+ # don't forget the leading whitespace here
REPLACEMENT_DATE=" $FILE_DATE"
+ REPLACEMENT="file date"
+# REPLACEMENT_DATE=" $SYSTEM_DATE"
+# REPLACEMENT="system date"
else
REPLACEMENT_DATE="$RECEIVED_DATE"
+ REPLACEMENT="received date"
fi
- # ensure that a X-Original-Date is set
+ # ensure that a X-Original-Date is set (but don't override it)
if [ -z "$X_ORIGINAL_DATE" ]
then
- test -z "$DATE" && \
- echo "X-Original-Date:$REPLACEMENT_DATE" > "$TMP" || \
- echo "X-Original-Date:$DATE" > "$TMP"
+ if [ -z "$DATE" ]
+ then
+ echo "X-Original-Date:$REPLACEMENT_DATE" > "$TMP"
+ else
+ test $FORCE -eq 1 && \
+ echo "X-Original-Date:$DATE" > "$TMP"
+ fi
else
:> "$TMP"
fi
# replace/set the date and write all lines
+ test $RFC -eq 1 && \
+ date_valid "$DATE"
if [ -z "$DATE" ]
then
+ test $DEBUG -eq 1 && \
+ echo "$1: date not found, using $REPLACEMENT now"
echo "Date:$REPLACEMENT_DATE" >> "$TMP"
cat "$1" >> "$TMP"
else
- sed "s/^Date: .*/Date:$REPLACEMENT_DATE/" "$1" >> "$TMP"
+ if [ $FORCE -eq 1 ]
+ then
+ test $DEBUG -eq 1 && \
+ echo "$1: date already found, replacing with $REPLACEMENT"
+ sed "s/^Date: .*/Date:$REPLACEMENT_DATE/" "$1" >> "$TMP"
+ else
+ if [ $RFC -eq 1 ]
+ then
+ if [ $DATE_VALID -ne 0 ]
+ then
+ test $DEBUG -eq 1 && \
+ echo "$1: date already found but not RFC-compliant, replacing with $REPLACEMENT"
+ sed "s/^Date: .*/Date:$REPLACEMENT_DATE/" "$1" >> "$TMP"
+ else
+ test $DEBUG -eq 1 && \
+ echo "$1: date already found and RFC-compliant, skipping"
+ cat "$1" >> "$TMP"
+ fi
+ else
+ test $DEBUG -eq 1 && \
+ echo "$1: date already found, skipping"
+ cat "$1" >> "$TMP"
+ fi
+ fi
fi
# uncomment the following line to backup the original file
mv -f "$TMP" "$1"
if [ $? -ne 0 ]
then
- echo "error while moving $TMP to $1"
+ echo "error while moving '$TMP' to '$1'"
exit 1
fi
projects / claws.git / blobdiff