phpicalendar-devel

[PHPiCalendar-DEV] URLs in iCalendar events

[Ben F. <li...@hi...>]

Hi all.

I can't seem to get phpicalendar to display the URLs associated with 
calendar objects. Each event in my calendar has a web page associated 
with it which gives further details (retrieved from a mysql database) 
about the event. I had toyed with the idea of actually putting this data 
within the iCal file itself, but I don't think it's flexible enough. I 
need to be able to separate it into lots of fields such as "price" "film 
rating" and things. So I'm trying to put a link in each calendar object 
to point to more information.

Is the URL feature of calendar events turned off in phpicalendar on 
purpose, perhaps because of security issues? Is it possible to turn it 
on? Are there issues associated with this?

Many Thanks

Ben


Extract from  Internet Calendaring and Scheduling Core Object 
Specification which I think is relevant
(http://www.faqs.org/rfcs/rfc2445.html):
===========================================
4.8.4.6 Uniform Resource Locator

   Property Name: URL

   Purpose: This property defines a Uniform Resource Locator (URL)
   associated with the iCalendar object.

   Value Type: URI

   Property Parameters: Non-standard property parameters can be
   specified on this property.

   Conformance: This property can be specified once in the "VEVENT",
   "VTODO", "VJOURNAL" or "VFREEBUSY" calendar components.

   Description: This property may be used in a calendar component to
   convey a location where a more dynamic rendition of the calendar
   information associated with the calendar component can be found. This
   memo does not attempt to standardize the form of the URI, nor the
   format of the resource pointed to by the property value. If the URL
   property and Content-Location MIME header are both specified, they
   MUST point to the same resource.

   Format Definition: The property is defined by the following notation:

     url        = "URL" urlparam ":" uri CRLF

     urlparam   = *(";" xparam)

   Example: The following is an example of this property:

     URL:http://abc.com/pub/calendars/jsmith/mytime.ics

-- 
Ben "tola" Francis            http://hippygeek.co.uk
----------------------------------------------------
COMPUTER SUPPORT for small businesses and home users
http://tolatech.co.uk
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Re: [PHPiCalendar-DEV] URLs in iCalendar events

[Chad L. <ch...@ch...>]

HI, we don't have support for the URL property tag of RFC2445. To my 
knowledge I haven't seen an application that uses is and it's never 
been requested by our audience.

You can put URLs directly into the Description field and we'll convert 
them into an href upon displace. I also believe we do this for the 
Location field as well.

If you want to submit a feature request, please do so on the 
Sourceforge site and attach a sample calendar.

Thanks,
Chad


On Feb 9, 2005, at 10:00 AM, Ben Francis wrote:

> Hi all.
>
> I can't seem to get phpicalendar to display the URLs associated with 
> calendar objects. Each event in my calendar has a web page associated 
> with it which gives further details (retrieved from a mysql database) 
> about the event. I had toyed with the idea of actually putting this 
> data within the iCal file itself, but I don't think it's flexible 
> enough. I need to be able to separate it into lots of fields such as 
> "price" "film rating" and things. So I'm trying to put a link in each 
> calendar object to point to more information.
>
> Is the URL feature of calendar events turned off in phpicalendar on 
> purpose, perhaps because of security issues? Is it possible to turn it 
> on? Are there issues associated with this?
>
> Many Thanks
>
> Ben
>
>
> Extract from  Internet Calendaring and Scheduling Core Object 
> Specification which I think is relevant
> (http://www.faqs.org/rfcs/rfc2445.html):
> ===========================================
> 4.8.4.6 Uniform Resource Locator
>
>   Property Name: URL
>
>   Purpose: This property defines a Uniform Resource Locator (URL)
>   associated with the iCalendar object.
>
>   Value Type: URI
>
>   Property Parameters: Non-standard property parameters can be
>   specified on this property.
>
>   Conformance: This property can be specified once in the "VEVENT",
>   "VTODO", "VJOURNAL" or "VFREEBUSY" calendar components.
>
>   Description: This property may be used in a calendar component to
>   convey a location where a more dynamic rendition of the calendar
>   information associated with the calendar component can be found. This
>   memo does not attempt to standardize the form of the URI, nor the
>   format of the resource pointed to by the property value. If the URL
>   property and Content-Location MIME header are both specified, they
>   MUST point to the same resource.
>
>   Format Definition: The property is defined by the following notation:
>
>     url        = "URL" urlparam ":" uri CRLF
>
>     urlparam   = *(";" xparam)
>
>   Example: The following is an example of this property:
>
>     URL:http://abc.com/pub/calendars/jsmith/mytime.ics
>
> -- 
> Ben "tola" Francis            http://hippygeek.co.uk
> ----------------------------------------------------
> COMPUTER SUPPORT for small businesses and home users
> http://tolatech.co.uk
> ----------------------------------------------------
>
>
>
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Re: [PHPiCalendar-DEV] URLs in iCalendar events

[Ben F. <li...@hi...>]

Chad Little wrote:

> HI, we don't have support for the URL property tag of RFC2445. To my 
> knowledge I haven't seen an application that uses is and it's never 
> been requested by our audience.

Erm, Apple iCal, Mozilla Calendar? I presume I'm referring to the right 
part of the RFC. A URL attached to an event.

>
> You can put URLs directly into the Description field and we'll convert 
> them into an href upon displace. I also believe we do this for the 
> Location field as well.

Oh OK. Just a note on this, whilst experimenting I've noticed that URLs 
in the description field don't work consistently between normal view and 
printer friendly view if written in HTML.
For example, if I type...

<a href="http://example.com/page.htm">more...</a>

into a description field, if you click on the event in a normal view you 
get a popup in which the HTML breaks. If you go to printer friendly 
view, the HTML is parsed correctly and works as intended.

If you don't use HTML and just type a URL in plain text, it becomes a 
link as you describe in normal view and is not clickable in printer 
friendly view which is fair enough.

A demo of this can be seen at:
http://www.catmosearts.co.uk/calendar/week.php?cal=all_calendars_combined971&getdate=20050209

I suppose this is just because you're not supposed to put HTML in event 
descriptions! But the inconsistency is a little frustrating.

>
> If you want to submit a feature request, please do so on the 
> Sourceforge site and attach a sample calendar.

OK, thanks :)

Ben

-- 
Ben "tola" Francis            http://hippygeek.co.uk
----------------------------------------------------
COMPUTER SUPPORT for small businesses and home users
http://tolatech.co.uk
----------------------------------------------------