summaryrefslogtreecommitdiffstats
path: root/fb.in
blob: bd15407a6e4f201e754f3dd9818a34106f305a82 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
#!/bin/sh
#----------------------------------------------------
# Author:       Florian "Bluewind" Pritz <flo@xssn.at>
# Contributor:  Moritz Wilhelmy
#
# Licensed under GPLv3
#   (see COPYING for full license text)
#
#----------------------------------------------------
# Optional dependency: xclip
#----------------------------------------------------

VERSION="@VERSION@"

DELETE=
EXTENSION=""
GET=
TAR=
COMPRESS=0
DISPLAYHISTORY=
PASTEBIN="http://paste.xinu.at"
WARNSIZE=10485760
CLIPBOARD=""
EXITCODE=0
LIBDIR="@LIBDIR@"

# the calling conventions for stat(1) are highly system dependent
STAT='stat -c %s' # GNU stat(1) is the default since most people have it

CLIPBOARD_CMD=xclip

case "`uname -s`" in
	*BSD)  STAT='stat -f %z';;
	Minix) STAT='stat -size';;
	Darwin)
		STAT='stat -f %z'
		CLIPBOARD_CMD=pbcopy
		;;
esac

base64_encode() {
	if type base64 2>&1 >/dev/null; then
		echo $1 | base64
	elif type openssl 2>&1 >/dev/null; then
		echo $1 | openssl enc -base64
	else
		echo "Warning: can't find base64 nor openssl executable" >&2
		echo "         filename of uploaded file will be set to stdin" >&2
		echo "stdin"
	fi
}

request_helper() {
	mode=$1
	url=$2
	file=$3

	# if available use the external helper, else fall back to calling curl
	if [ -x "$LIBDIR/fb-helper" ]; then
		$LIBDIR/fb-helper "$mode" "$url" "$file"
	else
		USERAGENT="fb-client/shell-$VERSION"
		CURLOPTS="-# -n -L -A $USERAGENT"

		if [ "$mode" = "d" ]; then
			CURLOPTS="$CURLOPTS -s"
		fi

		if [ "$mode" = "u" ]; then
			basefilename=`basename -- "$file"`
			if [ "`$STAT -- "$file"`" -eq "0" ] || echo "$basefilename" | grep -F -q ","; then
				if  [ "`wc -c -- "$file" | cut -d\  -f1`" -eq "0" ]; then
					echo "Error: skipping 0-byte file: \"$file\"" >&2
					return 1
				fi
				base64fn="`base64_encode "$basefilename"`"
				curl $CURLOPTS -F "file=@-" -F "filename=$base64fn" "$url" < "$file" -o /dev/stdout
			else
				curl $CURLOPTS -F "file=@$file" "$url" -o /dev/stdout
			fi
		else
			curl $CURLOPTS "$url"
		fi
	fi
}

require_executable() {
	if ! type $1 >/dev/null; then
		echo "Error: $1 not found. Please install." >&2
		exit 1
	fi
}

is_url() {
	if echo "$i" | grep -qE "^(f|ht)tp(s)?://.+"; then
		return 0
	fi
	return 1
}

do_tar_upload() {
	if [ "$COMPRESS" = "1" ]; then
		file="$TMPDIR/upload.tar.gz"
		tar -cf - -- "$@" | gzip -c > "$file" || return 1
	elif [ "$COMPRESS" = "2" ]; then
		file="$TMPDIR/upload.tar.xz"
		tar -cf - -- "$@" | xz -c > "$file" || return 1
	else
		file="$TMPDIR/upload.tar"
		tar -cf "$file" -- "$@" || return 1
	fi
	COMPRESS=0
	do_upload "$file" || return 1
}

do_upload() {
	local EXTRA=""
	file="$1"
	basefilename="`basename -- "$file"`"
	basedirname="`dirname -- "$file"`"

	if [ ! -r "$file" ]; then
		# sh doesn't have perror so this message can't be more precise
		echo "Error: File \"$file\" is not readable/not found." >&2
		return 1
	fi

	if [ -d "$file" ]; then
		cd "$basedirname"
		if [ "$COMPRESS" = "1" ]; then
			file="$TMPDIR/$basefilename.tar.gz"
			tar -cf - -- "$basefilename" | gzip -c > "$file" || return 1
		elif [ "$COMPRESS" = "2" ]; then
			file="$TMPDIR/$basefilename.tar.xz"
			tar -cf - -- "$basefilename" | xz -c > "$file" || return 1
		else
			file="$TMPDIR/$basefilename.tar"
			tar -cf "$file" -- "$basefilename" || return 1
		fi
	else
		if [ "$COMPRESS" = "1" ]; then
			gzip -c -- "$file" > "$TMPDIR/$basefilename.gz" || return 1
			file="$TMPDIR/$basefilename.gz"
		elif [ "$COMPRESS" = "2" ]; then
			xz -c -- "$file" > "$TMPDIR/$basefilename.xz" || return 1
			file="$TMPDIR/$basefilename.xz"
		fi
	fi

	TMPFILE=`mktemp "$TMPDIR/data.XXXXXX"`
	if [ "`$STAT -- "$file"`" -gt "$WARNSIZE" ]; then
		WARNSIZE=`request_helper d "$PASTEBIN/file/get_max_size"`
		if [ "`$STAT -- "$file"`" -gt "$WARNSIZE" ]; then
			echo "Warning: Your upload is too big and would be rejected. Maximum size is: $WARNSIZE bytes. Skipping..." >&2
			return 1
		fi
	fi

	request_helper u "$PASTEBIN/file/do_upload" "$file" > $TMPFILE || return 1

	sed '$d' $TMPFILE >&2
	URL=`tail -1 $TMPFILE`"$EXTENSION"
	echo $URL
	if echo $URL | grep -qE "^https?://"; then
		CLIPBOARD="$CLIPBOARD $URL"
	fi
}

read_stdin() {
	if tty -s; then
		echo "^C to exit, ^D to send"
	fi
	cat > "$1"
}

id_from_arg() {
	if echo "$1" | grep -qE "^https?://"; then
		echo "$1" | sed -r 's/https?:\/\/[^\/]+\/([^\/]+).*/\1/'
	else
		echo "$1"
	fi
}

help() {
	cat <<!
fb-client version $VERSION
usage: [cat |] `basename "$0"` [switches] [options] [<file(s)|ID(s)|folder(s)>]

  Upload/nopaste file(s)/stdin to paste.xinu.at and copy URL(s) to clipboard.
  ~/.netrc: machine paste.xinu.at password PASSWORD

  Switches:
    -d <ID(s)>     delete the IDs
    -g <ID(s)>     download the IDs and output on stdout (use with care!)
    -h             this help
    -v             show the client version
    -H             display an upload history

  Options:
    -e <extension>   extension for default highlighting (e.g. "diff")
    -t               upload a tar file containing all files (and directories)
    -c               compress the file being uploaded with gz or xz if used 2 times
                     When used in conjunction with -g this decompresses the download
!
}

if ! type getopts >/dev/null 2>&1; then
	echo "Error: getopts is not supported by your shell" >&2
	exit 1
fi

while getopts "e:gdhHtcv" OPTION; do
	case $OPTION in
		e) EXTENSION="$OPTARG";;
		g) GET=1;;
		c) COMPRESS=`expr $COMPRESS + 1`;;
		t) TAR=1;;
		d) DELETE=1;;
		H) DISPLAYHISTORY=1;;
		v) echo "$VERSION"; exit 0;;
		h|\?) help; exit 0;;
	esac
done

shift `expr $OPTIND - 1`

if [ "$COMPRESS" = "1" ]; then
	require_executable gzip
elif [ "$COMPRESS" = "2" ]; then
	require_executable xz
fi

TMPDIR="`mktemp -dt "fb.XXXXXX"`"
trap "rm -rf '${TMPDIR}'" EXIT TERM

if [ "$DELETE" ] || [ "$GET" ]; then
	if [ $# -eq 0 ]; then
		echo "Error: no ID specified" >&2
		exit 1
	fi
	for i in "$@"; do
		i=$(id_from_arg "$i")
		if [ "$DELETE" ]; then
			request_helper d "$PASTEBIN/file/delete/$i" || EXITCODE=1

		elif [ "$GET" ]; then
			if [ "$COMPRESS" = "1" ]; then
				request_helper d "$PASTEBIN/$i" | gzip -cd || EXITCODE=1
			elif [ "$COMPRESS" = "2" ]; then
				request_helper d "$PASTEBIN/$i" | xz -cd || EXITCODE=1
			else
				request_helper d "$PASTEBIN/$i" || EXITCODE=1
			fi
		fi
	done
elif [ "$DISPLAYHISTORY" ]; then
	request_helper d "$PASTEBIN/file/upload_history" || EXITCODE=1

elif [ $# -eq 0 ]; then
	if [ "$TAR" ]; then
		echo "Error: -t is not supported when operating on stdin" >&2
		exit 1
	fi
	read_stdin "$TMPDIR/stdin"
	do_upload "$TMPDIR/stdin" || EXITCODE=1
else
	if [ "$TAR" ]; then
		HAVE_URL=
		for i in "$@"; do
			if is_url "$i"; then
				HAVE_URL=1
			fi
		done
		if [ "$HAVE_URL" ]; then
			# TODO: support -t when passing URLs as arguments
			echo "Error: -t is not yet supported when operating on a URL" >&2
			exit 1
		else
			do_tar_upload "$@" || EXITCODE=1
		fi
	else
		for i in "$@"; do
			if is_url "$i"; then
				cd $TMPDIR
				if ! request_helper d "$i" > "`basename "$i"`"; then
					EXITCODE=1
					continue
				fi
				for f in *; do
					if ! do_upload "$f"; then
						EXITCODE=1
					fi
					rm -f -- "$f"
				done
			else
				do_upload "$i" || EXITCODE=1
			fi
		done
	fi
fi

if [ "$CLIPBOARD" != "" ]; then
	type $CLIPBOARD_CMD >/dev/null 2>&1 && echo -n $CLIPBOARD | nohup $CLIPBOARD_CMD >/dev/null 2>&1
fi

exit $EXITCODE

#vim: set noet: