Commit | Line | Data |
---|---|---|
0eb21b21 NR |
1 | #!/bin/sh |
2 | ||
7f7487a6 NR |
3 | # $0 [server] ([selector]) ([port]) ([mode]) |
4 | # server: the gopher server to dig to | |
5 | # selector: the gopher selector (default is empty) | |
6 | # port: the port to use (default is 70) | |
7 | # mode: the filetype mode (default depends upon selector) | |
8 | # 0: plain text | |
9 | # 1: menu (dir-like) | |
10 | # ... | |
11 | # download: fake mode to download the result without changes | |
12 | ||
c6852b70 | 13 | # ENV variables: |
da184edf | 14 | # LESS: will be used with 'less' (think: "export LESS=-r") |
c6852b70 NR |
15 | # LINK_COLOR: escape sequences colour (def: 2) |
16 | # - : means no escape sequence | |
17 | # 1 : means colour 1 | |
18 | # 2 : means colour 2 | |
19 | # [...] | |
20 | ||
0eb21b21 NR |
21 | SERVER="$1" |
22 | SELECTOR="$2" | |
23 | PORT="$3" | |
24 | MODE="$4" | |
25 | ||
26 | # Defaults: | |
27 | [ "$PORT" = "" ] && PORT=70 | |
28 | if [ "$MODE" = "" ]; then | |
29 | # "" or dir-like selector? -> 1 ; if not -> 0 | |
30 | echo "$SELECTOR" | grep "/$" >/dev/null && MODE=1 || MODE=0 | |
31 | [ "$SELECTOR" = "" ] && MODE=1 | |
32 | fi | |
33 | ||
34 | if [ "$SERVER" = "" ]; then | |
35 | echo "Syntax error: $0 [SERVER] ([SELECTOR]) ([PORT]) ([MODE])" >&2 | |
36 | exit 2 | |
37 | fi | |
38 | ||
c6852b70 NR |
39 | # can be "-" for no escape sequences |
40 | [ "$LINK_COLOR" = "" ] && LINK_COLOR=2 | |
050494fa NR |
41 | |
42 | # Start and end link tags | |
43 | SL= | |
44 | EL= | |
c6852b70 | 45 | if [ "$LINK_COLOR" != "-" ]; then |
050494fa NR |
46 | SL="`tput setf $LINK_COLOR``tput setaf $LINK_COLOR`" |
47 | EL="`tput init`"; | |
48 | fi | |
49 | ||
14f67465 | 50 | PREFIX="[0-9hIg]" |
7f7487a6 | 51 | |
0eb21b21 | 52 | # $0 [FILE] |
050494fa | 53 | # Display a gopher menu for the given resource |
0eb21b21 NR |
54 | cat_menu() { |
55 | i=0 | |
7f7487a6 | 56 | cat "$1" | grep "^i\|^$PREFIX" | while read ln; do |
0eb21b21 NR |
57 | ln="`echo "$ln" | cut -f1`" |
58 | if echo "$ln" | grep "^i" >/dev/null 2>&1; then | |
59 | echo "$ln" | sed "s:^.: :g" | |
7f7487a6 | 60 | elif echo "$ln" | grep "^$PREFIX" >/dev/null 2>&1; then |
0eb21b21 NR |
61 | i=`expr $i + 1` |
62 | i=`printf %2.f $i` | |
63 | field="`echo "$ln" | cut -c1`" | |
64 | case "$field" in | |
65 | 0) typ='TXT';; | |
7f7487a6 NR |
66 | 1) typ='DIR';; # menu, actually |
67 | 7) typ='(?)';; # query | |
68 | 8) typ='TEL';; # TELnet (not TELephone) | |
69 | h) typ='WEB';; # HTML | |
70 | g) typ='GIF';; | |
71 | I) typ='IMG';; | |
72 | +) typ='SVR';; # redundant server | |
050494fa | 73 | *) typ='!!!';; |
0eb21b21 | 74 | esac |
050494fa | 75 | echo "$ln" | sed "s:^.\\(.*\\):$typ $i $SL\\1$EL:g" |
0eb21b21 NR |
76 | #else |
77 | # Bad line | |
78 | fi | |
79 | done | |
80 | } | |
81 | ||
0eb21b21 | 82 | # $0 [FILE] [INDEX] [FIELD] |
050494fa NR |
83 | # Get a field from the given-by-index link in FILE |
84 | # | |
0eb21b21 NR |
85 | # Fields: |
86 | # 1 = type/name | |
87 | # 2 = selector | |
88 | # 3 = server | |
89 | # 4 = port | |
90 | getsel() { | |
7f7487a6 | 91 | cat "$1" | grep "^$PREFIX" | tail -n+"$2" | head -n 1 | cut -f"$3" |
0eb21b21 NR |
92 | } |
93 | ||
da184edf | 94 | # Save page content to 'tmp' file |
bb019694 | 95 | tmp="`mktemp -t gofetch.current_page.XXXXXX`" |
0eb21b21 | 96 | finish() { |
da184edf | 97 | rm -rf "$tmp" "$tmp.jpg" |
0eb21b21 NR |
98 | } |
99 | trap finish EXIT | |
100 | ||
101 | if [ $MODE = 1 ]; then | |
102 | echo "$SELECTOR" | nc "$SERVER" "$PORT" | sed 's:\r::g' > "$tmp" | |
103 | else | |
104 | echo "$SELECTOR" | nc "$SERVER" "$PORT" > "$tmp" | |
105 | fi | |
106 | ||
da184edf | 107 | # Process page content |
0eb21b21 | 108 | case "$MODE" in |
7f7487a6 NR |
109 | download) |
110 | # Special, fake mode, only from top-level | |
111 | cat "$tmp" | |
112 | ;; | |
0eb21b21 NR |
113 | 0) |
114 | cat "$tmp" | less | |
115 | ;; | |
116 | 1) | |
117 | CHOICE=start | |
118 | while [ "$CHOICE" != "" ]; do | |
119 | cat_menu "$tmp" | less | |
120 | read -p "[$SELECTOR]: " CHOICE | |
121 | index="`expr 1 \* "$CHOICE" 2>/dev/null`" | |
122 | if [ "$index" != "" ]; then | |
123 | goto_server="`getsel "$tmp" $index 3`" | |
124 | goto_sel="`getsel "$tmp" $index 2`" | |
125 | goto_port="`getsel "$tmp" $index 4`" | |
126 | goto_mode="`getsel "$tmp" $index 1 | cut -c1`" | |
127 | sh "$0" "$goto_server" "$goto_sel" "$goto_port" "$goto_mode" | |
128 | fi | |
129 | done | |
130 | ;; | |
131 | 7) | |
132 | read -p "Query: " SEARCH | |
133 | selQuery="$SELECTOR $SEARCH" | |
134 | ||
135 | exec sh "$0" "$SERVER" "$selQuery" "$PORT" 1 | |
136 | ;; | |
137 | 8) | |
138 | telnet -l "$SELECTOR" "$SERVER" "$PORT" | |
139 | read DUMMY | |
140 | ;; | |
141 | 9) | |
142 | echo "<BINARY FILE>" | less | |
143 | ;; | |
da184edf NR |
144 | g|I) |
145 | if convert -h >/dev/null 2>&1; then | |
538b88d6 NR |
146 | if ImageUtils.sh --help >/dev/null 2>&1; then |
147 | ImageUtils.sh --mode=DITHERING \ | |
148 | --width=74 "$tmp" | less | |
149 | elif jp2a -h >/dev/null 2>&1; then | |
da184edf | 150 | convert "$tmp" "$tmp.jpg" |
538b88d6 | 151 | jp2a --border --chars=" .-+=o8#"\ |
da184edf NR |
152 | --width=74 "$tmp.jpg" | less |
153 | else | |
538b88d6 NR |
154 | echo "required program not found to view images:" \ |
155 | jp2a or ImageUtils.sh | less | |
da184edf NR |
156 | fi |
157 | else | |
158 | echo "required program not found to view images: convert" \ | |
159 | | less | |
160 | fi | |
161 | ;; | |
0eb21b21 NR |
162 | *) |
163 | echo "unknwon selector mode: <$MODE>" | less | |
164 | exit 3 | |
165 | ;; | |
166 | esac |