Julian Marcos revised this gist . Go to revision
3 files changed, 169 insertions
bash-httpd.sh(file created)
| @@ -0,0 +1,157 @@ | |||
| 1 | + | #!/bin/bash | |
| 2 | + | # Configurable variables | |
| 3 | + | PATH=/bin:/usr/bin:/usr/local/bin | |
| 4 | + | DOC_ROOT=~/temp/www | |
| 5 | + | DEF_HTML=index.html | |
| 6 | + | DEF_DIR=www | |
| 7 | + | LOG_FACILITY=local1 | |
| 8 | + | # End of configurables | |
| 9 | + | HTTP_VERSION="HTTP/1.0" | |
| 10 | + | SERVER="bash-httpd/0.04" | |
| 11 | + | ||
| 12 | + | CR=`printf "\015"` | |
| 13 | + | program="${0##/*/}" | |
| 14 | + | ||
| 15 | + | response_code(){ | |
| 16 | + | num="$1" | |
| 17 | + | case "$num" in | |
| 18 | + | 200) err="OK";; | |
| 19 | + | 403) err="Forbidden";; | |
| 20 | + | 404) err="Not Found";; | |
| 21 | + | 500) err="Internal Server Error";; | |
| 22 | + | 501) err="Not Implemented";; | |
| 23 | + | *) err="Internal Server Error" | |
| 24 | + | log err "Unknown response: $num" | |
| 25 | + | num=500 | |
| 26 | + | ;; | |
| 27 | + | esac | |
| 28 | + | log notice "response: $num" | |
| 29 | + | echo "$HTTP_VERSION $num $err" | |
| 30 | + | } | |
| 31 | + | ||
| 32 | + | error(){ | |
| 33 | + | response_code $1 | |
| 34 | + | if [ "$2" ]; then problem="$2"; else problem="$err"; fi | |
| 35 | + | cat <<EOF | |
| 36 | + | Content-Type: text/html | |
| 37 | + | <!DOCTYPE html><html><head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><title> $problem </title></head><body><h1> $num $problem </h1> $problem </body></html> | |
| 38 | + | EOF | |
| 39 | + | log err "$problem" | |
| 40 | + | exit 1 | |
| 41 | + | } | |
| 42 | + | ||
| 43 | + | log(){ | |
| 44 | + | level="$1"; message="$2" | |
| 45 | + | #logger -p $LOG_FACILITY."$level" "$program[$$]: $method $url $version: $message" | |
| 46 | + | echo "$level" "$program[$$]: $method $url $version: $message">&2 | |
| 47 | + | } | |
| 48 | + | ||
| 49 | + | read method url version | |
| 50 | + | ||
| 51 | + | method="${method%$CR}"; | |
| 52 | + | url="${url%$CR}"; | |
| 53 | + | version="${version%$CR}"; | |
| 54 | + | ||
| 55 | + | case "$version" in | |
| 56 | + | ""|http/0.9|HTTP/0.9) | |
| 57 | + | readmore=0;; | |
| 58 | + | http/1.0|HTTP/1.0|http/1.1|HTTP/1.1) | |
| 59 | + | readmore=1;; | |
| 60 | + | *) | |
| 61 | + | log notice "$method $url $version" | |
| 62 | + | error 501 "Unknown version";; | |
| 63 | + | esac | |
| 64 | + | ||
| 65 | + | if [ "$readmore" != 0 ]; then | |
| 66 | + | read foo; while [ "$foo" != "$CR" -a "$foo" != "" ]; do read foo; done | |
| 67 | + | fi | |
| 68 | + | ||
| 69 | + | case "$method" in | |
| 70 | + | GET|get) | |
| 71 | + | what=get;; | |
| 72 | + | HEAD|head) | |
| 73 | + | what=head;; | |
| 74 | + | *) | |
| 75 | + | echo "$method" | |
| 76 | + | error 501 "Unimplemented method";; | |
| 77 | + | esac | |
| 78 | + | ||
| 79 | + | echo "URL: $url" >&2 | |
| 80 | + | case "$url" in | |
| 81 | + | "/envhi.txt") | |
| 82 | + | type=envfun; file="$DOC_ROOT/env.txt" | |
| 83 | + | ;; | |
| 84 | + | "/ipimg.jpg") | |
| 85 | + | type=ipimg; file="$DOC_ROOT/ipimg.jpg" | |
| 86 | + | ;; | |
| 87 | + | "/usenet/"*) | |
| 88 | + | type=usenetsearch; file="$(echo "$url"|cut -d/ -f3-)" | |
| 89 | + | ;; | |
| 90 | + | */../*|*[^/A-Za-z0-9~.-]*) | |
| 91 | + | error 403 "Illegal attempt to access resource" | |
| 92 | + | ;; | |
| 93 | + | #/~*) | |
| 94 | + | #user="${url#/~}"; | |
| 95 | + | #user="${user%%/*}"; | |
| 96 | + | #user=`eval echo ~$user`; # we had *better* have cleaned up $url | |
| 97 | + | #rest="${url#/~*/}"; rest="${rest##/~*}"; | |
| 98 | + | #type=file; file="$user/$DEF_DIR/$rest" | |
| 99 | + | #;; | |
| 100 | + | ""|/*) | |
| 101 | + | type=file; file="$DOC_ROOT/$url" | |
| 102 | + | ;; | |
| 103 | + | *) | |
| 104 | + | error 501 "Unknown request type" | |
| 105 | + | ;; | |
| 106 | + | esac | |
| 107 | + | ||
| 108 | + | case $type in | |
| 109 | + | file) | |
| 110 | + | if [ -d "$file" ]; then file="$file/$DEF_HTML"; fi | |
| 111 | + | if [ ! -e "$file" ]; then error 404; fi | |
| 112 | + | if [ ! -r "$file" ]; then error 403; fi | |
| 113 | + | response_code 200 | |
| 114 | + | if [ "$what" = "head" ]; then echo; exit 0; fi | |
| 115 | + | case "$file" in | |
| 116 | + | *.html | *.htm) mime=text/html;; | |
| 117 | + | *.jpg|*.jpeg) mime=image/jpeg;; | |
| 118 | + | *.gif) mime=image/gif;; | |
| 119 | + | *.gz|*.tgz) mime=application/binary;; | |
| 120 | + | *.txt|*.text) mime=text/plain;; | |
| 121 | + | *.css) mime=text/css;; | |
| 122 | + | *.js) mime=text/javascript;; | |
| 123 | + | *.json) mime=application/json;; | |
| 124 | + | *) mime=application/binary;; | |
| 125 | + | esac | |
| 126 | + | echo Content-Type: $mime; echo; cat $file | |
| 127 | + | ;; | |
| 128 | + | usenetsearch) | |
| 129 | + | ubase="/home/julian/.slrn/spools/news.tilde.green/news/" | |
| 130 | + | response_code 200 | |
| 131 | + | echo 'Content-Type: text/plain'; echo | |
| 132 | + | [ "$file" = "" ] && { echo "Use: /usenet/search_term or /usenet/file.path.to.article"; exit; } | |
| 133 | + | echo "$file" | grep -q '\.' | |
| 134 | + | [ "$?" = "1" ] && search=yes || search=no | |
| 135 | + | [ "$search" = "yes" ] && file="$(echo "$file"|sed -e 's;"; ;g' -e 's;%;.;g')" | |
| 136 | + | [ "$search" = "yes" ] && grep -R -- "$file" "${ubase}campaignwiki" "${ubase}tilde"|sed -e 's;'"$ubase"';;g' | |
| 137 | + | [ "$search" = "no" ] && file="$(echo "$file"|sed 's;\.;/;g')" | |
| 138 | + | [ "$search" = "no" ] && [ -f "${ubase}$file" ] && cat "${ubase}${file}" | |
| 139 | + | ;; | |
| 140 | + | ipimg) | |
| 141 | + | response_code 200 | |
| 142 | + | echo 'Content-Type: image/jpeg'; echo | |
| 143 | + | [ ! -f "$DOC_ROOT/$SOCAT_PEERADDR.jpg" ] && magick -gravity center -background black -fill white -size 400x300 -font "/home/julian/.local/share/fonts/Hack Regular Nerd Font Complete.ttf" caption:"Hello, your IP is $SOCAT_PEERADDR" $DOC_ROOT/$SOCAT_PEERADDR.jpg >&2 | |
| 144 | + | cat $DOC_ROOT/$SOCAT_PEERADDR.jpg | |
| 145 | + | ;; | |
| 146 | + | envfun) | |
| 147 | + | response_code 200 | |
| 148 | + | echo 'Content-Type: text/plain'; echo | |
| 149 | + | echo "ENV: <END" | |
| 150 | + | #env | |
| 151 | + | echo "Feature Disabled" | |
| 152 | + | echo "END" | |
| 153 | + | ;; | |
| 154 | + | *) | |
| 155 | + | error 501 "Messed up internal type" | |
| 156 | + | ;; | |
| 157 | + | esac | |
index.html(file created)
| @@ -0,0 +1,4 @@ | |||
| 1 | + | <html> | |
| 2 | + | <head><title>Funnyness</title></head> | |
| 3 | + | <body>See index.txt</body> | |
| 4 | + | </html> | |
test.sh(file created)
| @@ -0,0 +1,8 @@ | |||
| 1 | + | #!/bin/sh | |
| 2 | + | ||
| 3 | + | echo "$SOCAT_PEERADDR:$SOCAT_PEERPORT" >&2 | |
| 4 | + | #echo "$SOCAT_PEERADDR:$SOCAT_PEERPORT" >>guestbook.txt | |
| 5 | + | #timeout 5s cat >>guestbook.txt | |
| 6 | + | #printf 'HTTP/1.1 500 Not implemented\nServer: funserv\n\nThanks\n' | |
| 7 | + | ./bash-httpd.sh | |
| 8 | + | exit | |
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