[REBOL] Re: Examples needed...
From: ryan:christiansen:intellisol at: 18-May-2001 16:45
To upload a file to your server using an HTML form, use the following two
functions in your receiving CGI script. The usage in your script is as
follows...
cgi-input: retrieve-user-data
That's it. Then you will have the contents of a POST or GET operation in a
REBOL object! If POST input was sent using an HTML form using
enctype=multipart/form-data, the object will include the variables filename
(the name of the uploaded file), file-mime-type (the mime type of the
uploaded file) and file (the file itself in binary.)
-Ryan
decode-multipart: make object! [
form-data: func [
][
post-data: make string! 100000
while [0 < read-io system/ports/input post-data 100000] []
post-data: make binary! post-data
parse/all post-data [to "----" copy text thru "^/" (boundary: copy
text)]
cd-block: []
parse/all post-data [
any [thru boundary copy text [to boundary | to end] (text: make
binary! text append cd-block text)]]
cd-input: []
foreach cd cd-block [
either find cd "filename" [
parse/all cd [thru {name="} copy text to {"} (append
cd-input text)]
parse/all cd [thru {filename="} copy text to {"}
(file-path-string: copy text)]
file-path-block: parse/all file-path-string {\/"}
filename: last file-path-block
parse/all cd [thru {Content-Type: } copy text to {^M^/}
(file-mime-type: copy text)]
; parse/all cd [thru {^M^/^M^/} copy text to {^M^/} (text:
make binary! text append cd-input text)]
parse/all cd [thru {^M^/^M^/} copy text [to boundary | to
end] (text: make binary! text append cd-input text)]
][
parse/all cd [thru {name="} copy text to {"} (append cd-input
text)]
parse/all cd [thru {^M^/^M^/} copy text to {^M^/} (append
cd-input text)]
]
]
cd-input: head cd-input
object-data: make object! []
for x 1 (length? cd-input) 2 [
variable: first cd-input
cd-input: next cd-input
value: first cd-input
either binary? value [
make-object-data: reform [rejoin [{object-data: make
object-data [} (variable) {: } (value) {]}]]
][
make-object-data: reform [rejoin [{object-data: make
object-data [} (variable) {: ^{} (value) {^}]}]]
]
do make-object-data
cd-input: next cd-input
]
make-object-data: reform [rejoin [{object-data: make object-data
[filename: ^{} (filename) {^}]}]]
do make-object-data
make-object-data: reform [rejoin [{object-data: make object-data
[file-mime-type: ^{} (file-mime-type) {^}]}]]
do make-object-data
object-data
]
]
retrieve-user-data: func [][
either system/options/cgi/request-method = "POST" [
content-type: system/options/cgi/content-type
content-type-elements: parse content-type none
enctype: content-type-elements/1
either enctype = "multipart/form-data" [
decode-multipart/form-data
][
post-data: make string! 100000
while [0 < read-io system/ports/input post-data 100000] []
return make object! decode-cgi post-data
]
][
return make object! decode-cgi system/options/cgi/query-string
]
]
"Holzammer, Jean"
<[Jean--Holzammer--faedv-n]. To: [rebol-list--rebol--com]
bayern.de> cc:
Sent by: Subject: [REBOL] Examples needed...
[rebol-bounce--rebol--com]
05/18/2001 04:33 AM
Please respond to
rebol-list
Hi,
I try to gain some more experience with web applications and could need
some
sample code. Maybe some of you have already done one or more of the
following.
1. File Upload via a html form:
Needed: - a html page using a form with input type="file"
- a cgi script saving the binary(!) file to the filesystem
of the server machine
2. MySQL:// inserting of a binary file into a BLOB column ; i always get
corrupted data, probably a problem with reading/loading of file and
conversion
Needed: - a script inserting a (local) binary file into a BLOB column
- another one selecting this column and saving the file
back
to the filesystem
Ciao, Jean
