After conversion to 2005Q4, uwc fails on monthly calendar view

Question

We just converted from 2004Q2 to 2005Q4. In uwc, when certain users try the monthly view, they get nothing (the page load hangs). What's worse, a thread in the web server goes into an infinite loop. After a few of these tries the system gets slow.
I am 99% sure of the following: There was a change in 2005Q4 in the format for all-day events. Previously a start time only was listed. Now both a start and an end are listed in the internal database. Apparently the routine that sorts events by time for display in the monthly view gets confused by events without an end time, going into a loop (or possibly get a null pointer exception, though that's a symptom I haven't seen here).
Since I doubt I can get Sun to generate a patch quickly enough to be useful, I'm dealing with it by fixing all the calendars.
Here is an awk script to fix up an ics file:
BEGIN{FS=":"
l[1] = 31
l[2] = 28
l[3] = 31
l[4] = 30
l[5] = 31
l[6] = 30
l[7] = 31
l[8] = 31
l[9] = 30
l[10] = 31
l[11] = 30
l[12] = 31
$1 ~ "^DTSTART" {
gots = 1
$1 ~ "^DTEND" {
gotend = 1
gote = 1
$1 == "DTSTART;VALUE=DATE" {
date = $2 }
$1 == "CREATED" {
if (date && ! gotend) {
year = substr(date,1,4)+0
month = substr(date,5,2)+0
day = substr(date,7,2)+0
if (year % 4 == 0) {
l[2] = 29
} else {
l[2] = 28
if (day == l[month]) {
day = 1
month = month+1
if (month == 13) {
month = 1
year = year+1
} else
day = day + 1
gote = 1
didchange = 1
printf( "DTEND;VALUE=DATE:%04d%02d%02d\r\n", year, month, day)
if ($0 == "END:VEVENT\r")
if (!gote || !gots)
print "####no s or e" >> "/dev/tty"
date = ""
gote = ""
gots = ""
gotend = ""
print $0
END {
if (didchange)
print "changed" >"changed"
Here's a csh script that uses the awk script to fix one calendar:
#!/bin/csh
echo converting $1
(cd /army/sunone/servers3/calserv/cal/sbin; ./csbackup -c "$1" calendar /export/
convert/cal.ics)
rm -f changed
nawk -f fixcal.awk cal.ics >newcal.ics
if (-e changed) then
echo reloading $1
(cd /army/sunone/servers3/calserv/cal/sbin; ./csrestore -c "$1" calendar /expo
rt/convert/newcal.ics)
else
echo no change in $1
endif
Here's an example of a file that uses it. I created this from a listing done with cscal -l.
./fixcal "[email protected]"
./fixcal "[email protected]"
./fixcal "[email protected]"
This is probably practical for a few thousand calendars. If you have more than that, this is probably going to take too long.

Answer 1

Let's try that again. The awk script works, but it tries to set DTEND for TODO entries, which isn't valid. Fortunately the system seems to ignore them, but it's probably best not to do it. The following causes the script only to look at EVENT entries
BEGIN{FS=":"
l[1] = 31
l[2] = 28
l[3] = 31
l[4] = 30
l[5] = 31
l[6] = 30
l[7] = 31
l[8] = 31
l[9] = 30
l[10] = 31
l[11] = 30
l[12] = 31
$1 ~ "^DTSTART" {
  gots = 1
$1 ~ "^DTEND" {
  gotend = 1
  gote = 1
$1 == "DTSTART;VALUE=DATE" {
  date = $2 }
$1 == "CREATED" {
  if (inevent && date && ! gotend) {
    year = substr(date,1,4)+0
    month = substr(date,5,2)+0
    day = substr(date,7,2)+0
    if (year % 4 == 0) {
      l[2] = 29
    } else {
      l[2] = 28
    if (day == l[month]) {
      day = 1
      month = month+1
      if (month == 13) {
        month = 1
        year = year+1
    } else
      day = day + 1
    gote = 1
    didchange = 1
    printf( "DTEND;VALUE=DATE:%04d%02d%02d\r\n", year, month, day)
$0 == "BEGIN:VEVENT\r" {
  inevent = 1
  if ($0 == "END:VEVENT\r")
    inevent = 0
    if (!gote || !gots)
      print "####no s or e" >> "/dev/tty"
    date = ""
    gote = ""
    gots = ""
    gotend = ""
print $0
END {
  if (didchange)
    print "changed" >"changed"
      }