Download file size restrictions (without downloading it first!)
The following code works by limiting the size of the file, but it takes proportionately more time to tell you, for large files. Does this say its Uploader temporarily, read, find out its too big, then delete it? It would be completely backward. Is it possible to quickly check the size of the file? Because if someone tries to download a 10 MB file, it will take an hour to tell them its too big!
< cfif cgi.content_length GTE fileSizeLimit >
< cfoutput >
Your preset file is too big!
The maximum allowed size is #fileSizeLimit #.
< / cfoutput >
< cfabort >
< cfelse >
<!-Begin treatment first submission of file->
< cfif NEQ of IsDefined ('form.requiredfile_one') AND Trim (form.requiredfile_one) "" > "".
< cffile
action = "upload".
destination = "" #dstfile # ""
FileField = "requiredfile_one."
nameconflict = "makeunique" >
< cfset cookie.requiredfile_one = ' #cffile.serverfile # ' >
< cfset cookie.requiredfile_one_ext = ' #cffile.serverfileext # ' >
< cfquery name = "rs_insert_1" datasource = "062409js06ag" >
Insert Into presets
(pfilename, pfilenameext, artistid artistname, presetname, presetgenre, bpm, soundslike, Daw, vsts, license, instructions)
Values
(< cfqueryparam value = "" #cookie.requiredfile_one # "cfsqltype =" cf_sql_varchar">)
< cfqueryparam value = "" #cookie.requiredfile_one_ext # "cfsqltype ="cf_sql_varchar">, #findname.ID #," #findname.uname # "," #requiredname # "," #requiredgenre # "," #bpm # "," #soundslike # "," #requireddaw # "," #requiredvst # "," #requiredlicense # "," #requiredinstructions # ")"
< / cfquery >
< cfquery name = "qNewContact" datasource = "062409js06ag" >
SELECT @ ACE NEW_ID @IDENTITY
< / cfquery >
< cfset newContactID = qNewContact.NEW_ID / >
< / cfif >
< / cfif >
You are assuming that the file is downloaded before you determine the size of the file.
The dilemma that you are experiencing is due to the fact that ColdFusion's server-side and the file in question is on the client side. ColdFusion has no way of knowing what the size of the file is until it reaches the server. The only way to get the file on the server is to download. See question?
Therefore, you will need some logic client side, such as JavaScript to determine the file size BEFORE downloading to happen. Do a Google search for JavaScripts that will determine the size of a selected file, and then apply your logic.
Tags: ColdFusion
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