Re: [twsocket] Proposal for new content-type in function DocumentToContentType in OverbyteIcsHttpSrv.pas
On Apr 9, 2008, at 03:45, Bjørnar Nielsen wrote: The comment about the registry was there before I made any changes. My only change was to add 'text/xml' as content-type for extension 'xml'. For now my only need is this extra content-type, not another way of managing the list of content-types. When using Flash, if you have the need to do cross-domain-scripting, you have to have a file called crossdomain.xml on the root, defining the rules for crossdomain-scripting. And the content-type has to be text/xml when downloaded to flash from a server in order to work. I understand, but perhaps ICS could benefit from having automatic MIME-Type detection/handling, not only for the HTTP components, but for the SMTP as well. Currently, you have to set the MIME-Type manually on the SMTPCli component; and any attachments are automatically set to application/octet-stream, regardless of whether they are plain text files or binaries. So, if there is a plan to add such functionality to the ICS components, it is my opinion that using the Registry is the wrong thing to do. Indy does this, and then you depend on the host computer having the proper types registered. dZ. -- DZ-Jay [TeamICS] http://www.overbyte.be/eng/overbyte/teamics.html -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] Proposal for new content-type in function DocumentToContentType in OverbyteIcsHttpSrv.pas
Hello,
The comment about the registry was there before I made any changes. My only
change was to add 'text/xml' as content-type for extension 'xml'. For now my
only need is this extra content-type, not another way of managing the list of
content-types.
When using Flash, if you have the need to do cross-domain-scripting, you have
to have a file called crossdomain.xml on the root, defining the rules for
crossdomain-scripting. And the content-type has to be text/xml when downloaded
to flash from a server in order to work.
Regards Bjørnar
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of DZ-Jay
Sent: 8. april 2008 16:11
To: ICS support mailing
Subject: Re: [twsocket] Proposal for new content-type in function
DocumentToContentType in OverbyteIcsHttpSrv.pas
On Apr 8, 2008, at 09:45, Bjørnar Nielsen wrote:
{ We probably should use the registry to find MIME type for file
types }
Hello:
I don't agree that the Registry should be used, because then you limit
the application to those MIME types registered at the local host. What
I propose is that a simple list of mappings between extensions and MIME
types be kept and maintained with ICS (there are many of these
available already), and that an efficient mechanism be built into the
HttpSrv to load these on start up to some sort of searchable memory
structure. I have done this in the past using a custom Red and Black
Balanced Tree, which can then be searched to find the MIME type of a
file extension (and even its transport encoding). I actually
implemented this for automatic file encodings of SMTP attachments.
By keeping it in a simple list, like Apache does, it can be easily
extended and maintained.
dZ.
--
DZ-Jay [TeamICS]
http://www.overbyte.be/eng/overbyte/teamics.html
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18:38
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[twsocket] Proposal for new content-type in function DocumentToContentType in OverbyteIcsHttpSrv.pas
Se the new content-type at the bottom (xml):
function DocumentToContentType(FileName : String) : String;
var
Ext : String;
begin
{ We probably should use the registry to find MIME type for file types }
Ext := LowerCase(ExtractFileExt(FileName));
if Length(Ext) 1 then
Ext := Copy(Ext, 2, Length(Ext));
if (Ext = 'htm') or (Ext = 'html') then
Result := 'text/html'
else if Ext = 'gif' then
Result := 'image/gif'
else if Ext = 'bmp' then
Result := 'image/bmp'
else if (Ext = 'jpg') or (Ext = 'jpeg') then
Result := 'image/jpeg'
else if (Ext = 'tif') or (Ext = 'tiff') then
Result := 'image/tiff'
else if Ext = 'txt' then
Result := 'text/plain'
else if Ext = 'css' then
Result := 'text/css'
else if Ext = 'wav' then
Result := 'audio/x-wav'
else if Ext = 'ico' then
Result := 'image/x-icon'
{ WAP support begin }
else if Ext = 'wml' then
Result := 'text/vnd.wap.wml'
else if Ext = 'wbmp' then
Result := 'image/vnd.wap.wbmp'
else if Ext = 'wmlc' then
Result := 'application/vnd.wap.wmlc'
else if Ext = 'wmlscript' then
Result := 'text/vnd.wap.wmlscript'
else if Ext = 'wmlscriptc' then
Result := 'application/vnd.wap.wmlscriptc'
{ WAP support end }
else if Ext = 'pdf' then
Result := 'application/pdf'
else if Ext = 'xml' then
Result := 'text/xml'
else
Result := 'application/binary';
end;
Regards Bjørnar
No virus found in this outgoing message.
Checked by AVG.
Version: 7.5.519 / Virus Database: 269.22.9/1364 - Release Date: 07.04.2008
18:38
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Re: [twsocket] Proposal for new content-type in function DocumentToContentType in OverbyteIcsHttpSrv.pas
On Apr 8, 2008, at 09:45, Bjørnar Nielsen wrote:
{ We probably should use the registry to find MIME type for file
types }
Hello:
I don't agree that the Registry should be used, because then you limit
the application to those MIME types registered at the local host. What
I propose is that a simple list of mappings between extensions and MIME
types be kept and maintained with ICS (there are many of these
available already), and that an efficient mechanism be built into the
HttpSrv to load these on start up to some sort of searchable memory
structure. I have done this in the past using a custom Red and Black
Balanced Tree, which can then be searched to find the MIME type of a
file extension (and even its transport encoding). I actually
implemented this for automatic file encodings of SMTP attachments.
By keeping it in a simple list, like Apache does, it can be easily
extended and maintained.
dZ.
--
DZ-Jay [TeamICS]
http://www.overbyte.be/eng/overbyte/teamics.html
--
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please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket
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