我有一个应用程序，我使用wowza服务器和hdfvr进行视频录制。我正在使用jwplayer在网站上播放视频。
我需要知道如何阻止用户下载mp4文件。目前我正在使用coldfusion，它在验证后返回媒体流。这是返回mp4内容的文件代码部分。
d = d >> 1;
以下是我用来播放视频的JWplayer代码。
<cfif FileExists(videoPath)>
<cfset fileInfoVar = GetFileInfo(videoPath)>
<cfheader name="Last-Modified" value="#fileInfoVar.Lastmodified#">
<cfheader name="ETag" value="#hash(videoPath, 'MD5')#">
<cfheader name="Content-Location" value="https://example.com/videoreturnfile.cfm">
<cfif structKeyExists(GetHttpRequestData().headers, 'Range')>
<cfset rangeDownload(videoPath)>
<cfelse>
<cffile action="readbinary" file="#videoPath#" variable="theData">
<cfscript>
context = getPageContext();
context.setFlushOutput(false);
response = context.getResponse().getResponse();
response.setContentType("video/mp4");
response.setContentLength(arrayLen(theData));
out = response.getOutputStream();
out.write(theData);
out.flush();
out.close();
</cfscript>
</cfif>
</cfif>
<cffunction name="rangeDownload" returnType="void" output="yes">
<cfargument name="file" type="string" required="true" hint="path to file">
<cfset var l = {}>
<cfset l.request = GetHttpRequestData()>
<cffile action="readbinary" file="#ARGUMENTS.file#" variable="l.theData">
<cfset l.size = arrayLen(l.theData)>
<cfset l.length = l.size>
<cfset l.start = 0>
<cfset l.end = l.size - 1>
<!--- Now that we've gotten so far without errors we send the accept range header
/* At the moment we only support single ranges.
* Multiple ranges requires some more work to ensure it works correctly
* and comply with the spesifications: http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html#sec19.2
*
* Multirange support annouces itself with:
* header('Accept-Ranges: bytes');
*
* Multirange content must be sent with multipart/byteranges mediatype,
* (mediatype = mimetype)
* as well as a boundry header to indicate the various chunks of data.
*/
--->
<cfheader name="Accept-Ranges" value="0-#l.length#">
<!---<cfheader name="Accept-Ranges" value="bytes"> --->
<!---
multipart/byteranges
http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html#sec19.2 --->
<cfif structKeyExists(l.request.headers, 'Range')>
<cfset l.c_start = l.start>
<cfset l.c_end = l.end>
<!--- Extract the range string --->
<cfset l.range = ListGetAt(l.request.headers.range, 2, '=')>
<!--- Make sure the client hasn't sent us a multibyte range --->
<cflog file="rangeDownload" text="#l.range#" />
<cfif l.range contains ','>
<!--- (?) Should this be issued here, or should the first
range be used? Or should the header be ignored and
we output the whole content?
--->
<cfheader statusCode = "416" statusText = "Requested Range Not Satisfiable">
<cfheader name="Content-Range" value="bytes #l.start#-#l.end#/#l.size#">
<!--- (?) Echo some info to the client? --->
<cfabort>
</cfif>
<!--- If the range starts with an '-' we start from the beginning
If not, we forward the file pointer
And make sure to get the end byte if specified --->
<cfif Left(l.range, 1) eq '-'>
<!--- The n-number of the last bytes is requested --->
<cfset l.c_start = l.size - Mid(l.range, 2, Len(l.range))>
<cfelse>
<cfset l.rangeArray = ListToArray(l.range, '-')>
<cfset l.c_start = l.rangeArray[1]>
<cfif ArrayLen(l.rangeArray) eq 2 and val(l.rangeArray[2]) gt 0>
<cfset l.c_end = l.rangeArray[2]>
<cfelse>
<cfset l.c_end = l.size>
</cfif>
</cfif>
<!---
/* Check the range and make sure it's treated according to the specs.
* http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
*/
// End bytes can not be larger than l.end. --->
<cfif l.c_end gt l.end>
<cfset l.c_end = l.end>
</cfif>
<!--- Validate the requested range and return an error if it's not correct. --->
<cfif l.c_start gt l.c_end || l.c_start gt (l.size - 1) || l.c_end gte l.size>
<cfheader statusCode = "416" statusText = "Requested Range Not Satisfiable">
<cfheader name="Content-Range" value="bytes #l.start#-#l.end#/#l.size#">
<!--- (?) Echo some info to the client? --->
<cfabort>
</cfif>
<cfset l.start = l.c_start>
<cfset l.end = l.c_end>
<cfset l.length = l.end - l.start + 1><!--- Calculate new content length --->
<cfscript>
context = getPageContext();
context.setFlushOutput(false);
response = context.getResponse().getResponse();
response.setContentType("video/mp4");
response.setContentLength(l.length);
</cfscript>
<cfheader statusCode = "206" statusText = "Partial Content">
</cfif>
<!--- Notify the client the byte range we'll be outputting --->
<cfheader name="Content-Range" value="bytes #l.start#-#l.end#/#l.size#">
<cfheader name="Content-Length" value="#l.length#">
<cfscript>
// Start buffered download
out = response.getOutputStream();
// write the portion requested
out.write(l.theData, javacast('int', l.start), javacast('int', l.length));
out.flush();
out.close();
</cfscript>
</cffunction>
在jwplayer中有什么办法可以限制我的视频应该用我的jwplayer插件播放？
或者我可以通过哪些建议让用户下载文件更复杂？