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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2016-12-22 15:33:11 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2016-12-22 15:33:11 +0100 |
| commit | 5d27cb364020f46e9dcd14f30d58c25e94e9b33b (patch) | |
| tree | 78ddd9f5f437badda4be786b661e11782382c481 /networking/httpd_post_upload.cgi | |
| parent | 6704746c697ace0cc0de5b231fc8be4db06c40f4 (diff) | |
| download | busybox-5d27cb364020f46e9dcd14f30d58c25e94e9b33b.tar.gz | |
Make POST upload example script easier to use
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/httpd_post_upload.cgi')
| -rwxr-xr-x | networking/httpd_post_upload.cgi | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/networking/httpd_post_upload.cgi b/networking/httpd_post_upload.cgi new file mode 100755 index 000000000..e4ffd2bb5 --- /dev/null +++ b/networking/httpd_post_upload.cgi @@ -0,0 +1,59 @@ +#!/bin/sh + +# post_upload.htm example: +# <html> +# <body> +# <form action=/cgi-bin/httpd_post_upload.cgi method=post enctype=multipart/form-data> +# File to upload: <input type=file name=file1> <input type=submit> +# </form> + +# POST upload format: +# -----------------------------29995809218093749221856446032^M +# Content-Disposition: form-data; name="file1"; filename="..."^M +# Content-Type: application/octet-stream^M +# ^M <--------- headers end with empty line +# file contents +# file contents +# file contents +# ^M <--------- extra empty line +# -----------------------------29995809218093749221856446032--^M + +file=/tmp/$$-$RANDOM + +CR=`printf '\r'` + +# CGI output must start with at least empty line (or headers) +printf '\r\n' + +IFS="$CR" +read -r delim_line +IFS="" + +while read -r line; do + test x"$line" = x"" && break + test x"$line" = x"$CR" && break +done + +cat >"$file" + +# We need to delete the tail of "\r\ndelim_line--\r\n" +tail_len=$((${#delim_line} + 6)) + +# Get and check file size +filesize=`stat -c"%s" "$file"` +test "$filesize" -lt "$tail_len" && exit 1 + +# Check that tail is correct +dd if="$file" skip=$((filesize - tail_len)) bs=1 count=1000 >"$file.tail" 2>/dev/null +printf "\r\n%s--\r\n" "$delim_line" >"$file.tail.expected" +if ! diff -q "$file.tail" "$file.tail.expected" >/dev/null; then + printf "<html>\n<body>\nMalformed file upload" + exit 1 +fi +rm "$file.tail" +rm "$file.tail.expected" + +# Truncate the file +dd of="$file" seek=$((filesize - tail_len)) bs=1 count=0 >/dev/null 2>/dev/null + +printf "<html>\n<body>\nFile upload has been accepted" |