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Contents of /bti/trunk/bti-shrink-urls

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Revision 2338 - (show annotations)
Fri Jan 14 01:23:13 2011 UTC (10 years ago) by gregoa
File size: 3894 byte(s)
* New upstream release: includes fixes for
  - "the --dry-run option has no effect (tweets get posted anyway)
     with OAuth" (closes: #608608)
  - "--replyto doesn't work with OAuth" (closes: #608112)
* Drop patch 0001-Fixing-Identi.ca-s-OAuth-request_token-URI.patch, applied
  upstream.
1 #!/bin/bash
2 # Copyright (C) 2009 Bart Trojanowski <bart@jukie.net>
3 #
4 # This program is free software; you can redistribute it and/or modify it
5 # under the terms of the GNU General Public License as published by the
6 # Free Software Foundation version 2 of the License.
7 #
8 # This program is distributed in the hope that it will be useful, but
9 # WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 # General Public License for more details.
12 #
13 # You should have received a copy of the GNU General Public License along
14 # with this program; if not, write to the Free Software Foundation, Inc.,
15 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16
17 needs_escape=true
18
19 shrink_host=2tu.us
20 test -f ~/.bti && . ~/.bti
21
22 while test -n "$1" ; do
23 word="$1"
24 shift
25 case "$word" in
26 --escaped)
27 needs_escape=
28 ;;
29 --help|-h)
30 cat <<END
31 bti-shrink-urls - convert URLs to a shorter form using a web service
32
33 $0 [--escaped] [<url>]
34
35 Currently supported: 2tu.us (default), bit.ly, j.mp.
36 END
37 exit 0
38 ;;
39 *)
40 URL=$word
41 ;;
42 esac
43 done
44
45 function convert_url() {
46 local url=$1
47 test -n "$url" || return 1
48 test "${url%%:*}" = 'http' || return 1
49
50 local urllen="${#url}"
51
52 # http://en.wikipedia.org/wiki/Percent-encoding
53 if test -n "$needs_escape" ; then
54 url=$(echo "$url" | sed -e 's/\%/%25/g' \
55 -e 's/!/%21/g' \
56 -e 's/*/%2A/g' \
57 -e "s/'/%27/g" \
58 -e 's/(/%28/g' \
59 -e 's/)/%29/g' \
60 -e 's/;/%3B/g' \
61 -e 's/:/%3A/g' \
62 -e 's/@/%40/g' \
63 -e 's/&/%26/g' \
64 -e 's/=/%3D/g' \
65 -e 's/+/%2B/g' \
66 -e 's/\$/%24/g' \
67 -e 's/,/%2C/g' \
68 -e 's,/,%2F,g' \
69 -e 's/?/%3F/g' \
70 -e 's/#/%23/g' \
71 -e 's/\[/%5B/g' \
72 -e 's/]/%5D/g')
73 fi
74
75 case $shrink_host in
76 2tu.us)
77 local submit="http://2tu.us/?save=y&url=$url"
78 local res=$(wget -q -O - "$submit" | awk -F"'" '/Your tight URL is:/ { print $2 }')
79 ;;
80 bit.ly|j.mp)
81 if [ -z "$shrink_bitly_login" -o -z "$shrink_bitly_key" ]; then
82 echo "To use $shrink_host you must set 'shrink_bitly_login' and 'shrink_bitly_key' in ~/.bti" >&2
83 exit 1
84 fi
85 local submit="http://api.bit.ly/v3/shorten?format=txt&login=$shrink_bitly_login&apiKey=$shrink_bitly_key&domain=$shrink_host&longUrl=$url"
86 local res=$(wget -q -O - "$submit")
87 ;;
88 *)
89 echo "Shrinking with $shrink_host is not supported." >&2
90 exit 1
91 ;;
92 esac
93
94 if test "${res%%:*}" = 'http' -a "${#res}" -lt "$urllen" ; then
95 echo $res
96 return 0
97 fi
98 return 1
99 }
100
101 function die() {
102 echo >&2 $@
103 exit 1
104 }
105
106 if test -n "$URL" ; then
107 convert_url "$URL" || die "Failed to shrink '$URL'"
108 exit $?
109 fi
110
111 test -t 0 && echo >&2 "Type in some urls and I'll try to shrink them for you..."
112 while read line ; do
113 convert_url "$line" || echo $line
114 done

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