claws-mail/tools/textviewer.sh
2013-03-20 11:26:52 +01:00

243 lines
6.9 KiB
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Executable file

#!/usr/bin/env bash
# textviewer.sh
# Copyright 2003 Luke Plant <L.Plant.98@cantab.net>
# and Johann Koenig <johann@mental-graffiti.com>
# This program 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., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
##############################################################################
#
# This script is a text viewer designed to be used with claws-mail actions
# Set up an action with the command line: textviewer.sh %p |
#
# The script will try to detect file type automatically, and then
# invokes a relevant program to print the file in plain text to
# the standard output.
#
# From v 0.9.7claws7, claws-mail sets the temporary file
# of a part to XXXXXX.mimetmp.[filename of attachment]
# This means we can use the extension of the filename for checking.
# Also use the program 'file' if that fails.
#
# To extend the script just follow the patterns that already exist, or
# contact the author if you have problems.
##############################################################################
#
# Change Log
#
# 2003-03-25
# - make extension matching case insensitive
#
# 2003-03-23
# - Support for MS Excel (xlhtml) and Powerpoint (ppthtml)
#
# 2004-03-09
# - Support for HTML (html2text)
#
# 2004-02-13
# - added support for perl and shell scripts, and recognize that
# 'file' will always return 'text' somewhere in its output for
# files that, well, contain text
#
# 2004-01-25
# - added brief messages describing whats going on
#
# 2004-01-23
# - added support for 'pdftotext,' from xpdf-utils debian package
#
# 2004-01-05
# - added matcher and action for OpenOffice Writer documents
# (requires ooo2txt)
#
# 2004-01-05
# - changed page width parameter for antiword
# - fixed matcher for 'diffs'
# - added a matcher and action for bzip2 - bzip2 files
# are decompressed and textviewer.sh run on the result
# - similarly decompress gzip files and run textviewer.sh
# on the result, insteading of doing 'gzip -l'
#
# 2003-12-30
# added the script to claws-mail/tools
#
# 2003-12-30
# - use 'fold' after 'unrtf' to wrap to a nice width
# - added basic file sanity checks
#
# 2003-12-29
# Added recognition for "Zip " from 'file' output
#
# 2003-12-19
# Initial public release
#
###############################################################################
if [ $# -eq 0 ]
then
echo "No filename supplied." >&2
echo "Usage: textviewer.sh FILE" >&2
exit 1
fi
[ -f "$1" ] ||
{
echo "File \"$1\" does not exist or is not a regular file." >&2
exit 1
}
[ -r "$1" ] ||
{
echo "Cannot read file \"$1\"." >&2
exit 1
}
FILETYPE=`file --brief "$1"` ||
{
echo "Please install the command 'file' to use this script." >&2
exit 1
};
FNAME=`echo "$1" | tr [A-Z] [a-z]`
case "$FNAME" in
*.doc) TYPE=MSWORD ;;
*.ppt) TYPE=POWERPOINT ;;
*.zip) TYPE=ZIP ;;
*.tar.gz|*.tgz) TYPE=TARGZ ;;
*.tar.bz2|*.tar.bz) TYPE=TARBZ ;;
*.gz) TYPE=GZIP ;;
*.bz2|*.bz) TYPE=BZIP ;;
*.tar) TYPE=TAR ;;
*.diff) TYPE=TEXT ;;
*.txt) TYPE=TEXT ;;
*.rtf) TYPE=RTF ;;
*.sxw) TYPE=OOWRITER ;;
*.pdf) TYPE=PDF ;;
*.sh) TYPE=TEXT ;;
*.pl) TYPE=TEXT ;;
*.html|*.htm) TYPE=HTML ;;
*.xls) TYPE=EXCEL ;;
esac
if [ "$TYPE" = "" ]
then
case $FILETYPE in
*"HTML"*) TYPE=HTML ;;
*"text"*) TYPE=TEXT ;;
gzip*) TYPE=GZIP ;;
bzip2*) TYPE=BZIP ;;
"POSIX tar archive"*) TYPE=TAR ;;
"Zip "*) TYPE=ZIP ;;
"Rich Text Format"*)
TYPE=RTF ;;
esac
fi
case $TYPE in
TARGZ) echo -e "Gzip'd tarball contents:\n" ;
tar -tzvf "$1" ;;
TARBZ) echo -e "Bzip'd tarball contents:\n" ;
tar -tjvf "$1" ;;
BZIP) TMP=`mktemp "$1".temp.XXXXXXX` || exit 1;
bunzip2 -c "$1" > "$TMP" || exit 1;
echo -e "Re-running \"$0\" on bunzip'd contents of \"$1\":\n";
"$0" "$TMP";
rm "$TMP" ;;
GZIP) TMP=`mktemp "$1".temp.XXXXXXX` || exit 1;
gunzip -c "$1" > "$TMP" || exit 1;
echo "Re-running \"$0\" on gunzip'd contents of \"$1\":\n";
"$0" "$TMP";
rm "$TMP" ;;
TAR) echo -e "Tar archive contents:\n" ;
tar -tvf "$1" ;;
ZIP) echo -e "Zip file contents:\n" ;
unzip -l "$1" ;;
RTF) which unrtf > /dev/null 2>&1 ||
{
echo "Program 'unrtf' for displaying RTF files not found" >&2
exit 1
};
echo -e "Displaying \"$1\" using \"unrtf\":\n";
unrtf -t text "$1" 2>/dev/null | egrep -v '^### ' | fold -s -w 72 ;;
TEXT) cat "$1" ;;
MSWORD) which antiword > /dev/null 2>&1 ||
{
echo "Program 'antiword' for displaying MS Word files not found" >&2
exit 1
};
echo -e "Displaying \"$1\" using \"antiword\":\n";
antiword -w 72 "$1" ;;
POWERPOINT) which ppthtml > /dev/null 2>&1 ||
{
echo "Program 'ppthtml' for displaying Powerpoint files not found" >&2
exit 1
};
which html2text > /dev/null 2>&1 ||
{
echo "Program 'html2text' for displaying Powerpoint files not found" >&2
exit 1
};
echo -e "Displaying \"$1\" using \"ppthtml\" and \"html2text\":\n";
ppthtml "$1" | html2text ;;
EXCEL) which xlhtml > /dev/null 2>&1 ||
{
echo "Program 'xlhtml' for displaying Excel files not found" >&2
exit 1
};
which html2text > /dev/null 2>&1 ||
{
echo "Program 'html2text' for displaying Excel files not found" >&2
exit 1
};
echo -e "Displaying \"$1\" using \"xlhtml\" and \"html2text\":\n";
xlhtml "$1" | html2text ;;
OOWRITER) which ooo2txt > /dev/null 2>&1 ||
{
echo "Program 'ooo2txt' for converting OpenOffice Writer files not files not found" >&2
exit 1
};
echo -e "Displaying \"$1\" using \"ooo2txt\":\n";
ooo2txt "$1" ;;
PDF) which pdftotext > /dev/null 2>&1 ||
{
echo "Program 'pdftotext' for converting Adobe Portable Document Format to text not found" >&2
exit 1
};
echo -e "Displaying \"$1\" using \"pdftotext\":\n";
pdftotext "$1" - ;;
HTML) which html2text > /dev/null 2>&1 ||
{
echo "Program 'html2text' for converting HTML files not found" >&2
exit 1
};
html2text -nobs "$1" ;;
*) echo "Unsupported file type \"$FILETYPE\", cannot display.";;
esac