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https://github.com/sheumann/hush.git
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5d148e2646
stat: fix end-of-line if format is specified (wasn't printing it),
fix %z (time) format to match coreutils 6.3
56 lines
1.6 KiB
Bash
56 lines
1.6 KiB
Bash
#!/bin/sh
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# This CGI creates directory index.
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# Put it into cgi-bin/index.cgi and chmod 0755.
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#
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# Problems:
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# * Unsafe wrt weird filenames with <>"'& etc...
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# * Not efficient: calls stat (program, not syscall) for each file
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# * Probably requires bash
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#
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# If you want speed and safety, you need to code it in C
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# Must start with '/'
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test "${QUERY_STRING:0:1}" = "/" || exit 1
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# /../ is not allowed
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test "${QUERY_STRING%/../*}" = "$QUERY_STRING" || exit 1
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test "${QUERY_STRING%/..}" = "$QUERY_STRING" || exit 1
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# Outta cgi-bin...
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cd .. 2>/dev/null || exit 1
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# Strip leading '/', go to target dir
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cd "${QUERY_STRING:1}" 2>/dev/null || exit 1
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f=`dirname "$QUERY_STRING"`
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test "$f" = "/" && f=""
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# Pipe thru dd (need to write header as single write(),
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# or else httpd doesn't see "Content-type: text/html"
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# in first read() and decides that it is not html)
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{
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printf "%s" \
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$'HTTP/1.0 200 OK\r\n'\
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$'Content-type: text/html\r\n\r\n'\
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"<html><head><title>Index of $QUERY_STRING</title></head>"$'\r\n'\
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"<body><h1>Index of $QUERY_STRING</h1><pre>"$'\r\n'\
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$'<table width=100%>\r\n'\
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$'<col><col><col width=0*>\r\n'\
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$'<tr><th>Name<th align=right>Last modified<th align=right>Size\r\n'\
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\
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"<tr><td><a href='$f/'>..</a><td><td>"$'\r\n'
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IFS='#'
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for f in *; do
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# Guard against empty dirs...
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test -e "$f" && \
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stat -c "%F#%s#%z" "$f" | {
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read type size cdt junk
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dir=''
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test "$type" = "directory" && dir='/'
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cdt="${cdt//.*}" # no fractional seconds
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cdt="${cdt// / }" # prevent wrapping around space
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printf "%s" "<tr><td><a href='$f$dir'>$f</a><td align=right>$cdt<td align=right>$size"$'\r\n'
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}
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done
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printf "</table></pre><hr></body></html>"$'\r\n'
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} | dd bs=4k
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