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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2008-04-17 12:35:09 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2008-04-17 12:35:09 +0000 |
| commit | 250aa5bb015061787e62f63847df04f377af91c1 (patch) | |
| tree | 3d349c74d7eb3653eceb9d6087267799fd05cabe | |
| parent | c033d5196d863edaabf9d02531a12daa77cc48c7 (diff) | |
| download | busybox-w32-250aa5bb015061787e62f63847df04f377af91c1.tar.gz busybox-w32-250aa5bb015061787e62f63847df04f377af91c1.tar.bz2 busybox-w32-250aa5bb015061787e62f63847df04f377af91c1.zip | |
httpd: add an example of POST upload CGI
| -rw-r--r-- | networking/httpd_post_upload.txt | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/networking/httpd_post_upload.txt b/networking/httpd_post_upload.txt new file mode 100644 index 000000000..a53b11467 --- /dev/null +++ b/networking/httpd_post_upload.txt | |||
| @@ -0,0 +1,76 @@ | |||
| 1 | POST upload example: | ||
| 2 | |||
| 3 | post_upload.htm | ||
| 4 | =============== | ||
| 5 | <html> | ||
| 6 | <body> | ||
| 7 | <form action=/cgi-bin/post_upload.cgi method=post enctype=multipart/form-data> | ||
| 8 | File to upload: <input type=file name=file1> <input type=submit> | ||
| 9 | </form> | ||
| 10 | |||
| 11 | |||
| 12 | post_upload.cgi | ||
| 13 | =============== | ||
| 14 | #!/bin/sh | ||
| 15 | |||
| 16 | # POST upload format: | ||
| 17 | # -----------------------------29995809218093749221856446032^M | ||
| 18 | # Content-Disposition: form-data; name="file1"; filename="..."^M | ||
| 19 | # Content-Type: application/octet-stream^M | ||
| 20 | # ^M <--------- headers end with empty line | ||
| 21 | # file contents | ||
| 22 | # file contents | ||
| 23 | # file contents | ||
| 24 | # ^M <--------- extra empty line | ||
| 25 | # -----------------------------29995809218093749221856446032--^M | ||
| 26 | |||
| 27 | # Beware: bashism $'\r' is used to handle ^M | ||
| 28 | |||
| 29 | file=/tmp/$$-$RANDOM | ||
| 30 | |||
| 31 | # CGI output must start with at least empty line (or headers) | ||
| 32 | printf '\r\n' | ||
| 33 | |||
| 34 | IFS=$'\r' | ||
| 35 | read -r delim_line | ||
| 36 | |||
| 37 | IFS='' | ||
| 38 | delim_line="${delim_line}--"$'\r' | ||
| 39 | |||
| 40 | while read -r line; do | ||
| 41 | test "$line" = '' && break | ||
| 42 | test "$line" = $'\r' && break | ||
| 43 | done | ||
| 44 | |||
| 45 | # This will not work well for binary files: bash 3.2 is upset | ||
| 46 | # by reading NUL bytes and loses chunks of data. | ||
| 47 | # If you are not bothered by having junk appended to the uploaded file, | ||
| 48 | # consider using simple "cat >file" instead of the entire | ||
| 49 | # fragment below. | ||
| 50 | |||
| 51 | while read -r line; do | ||
| 52 | |||
| 53 | while test "$line" = $'\r'; do | ||
| 54 | read -r line | ||
| 55 | test "$line" = "$delim_line" && { | ||
| 56 | # Aha! Empty line + delimiter! All done | ||
| 57 | cat <<EOF | ||
| 58 | <html> | ||
| 59 | <body> | ||
| 60 | File upload has been accepted | ||
| 61 | EOF | ||
| 62 | exit 0 | ||
| 63 | } | ||
| 64 | # Empty line + NOT delimiter. Save empty line, | ||
| 65 | # and go check next line | ||
| 66 | printf "%s\n" $'\r' -vC >&3 | ||
| 67 | done | ||
| 68 | # Not empty line - just save | ||
| 69 | printf "%s\n" "$line" -vC >&3 | ||
| 70 | done 3>"$file" | ||
| 71 | |||
| 72 | cat <<EOF | ||
| 73 | <html> | ||
| 74 | <body> | ||
| 75 | File upload was not terminated with '$delim_line' - ??! | ||
| 76 | EOF | ||