webcit/calendar_view.c

   1 /*
   2  * $Id$
   3  *
   4  *
   5  */
   6
   7 #include <ctype.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <stdio.h>
  11 #include <fcntl.h>
  12 #include <signal.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <sys/socket.h>
  16 #include <limits.h>
  17 #include <netinet/in.h>
  18 #include <netdb.h>
  19 #include <string.h>
  20 #include <pwd.h>
  21 #include <errno.h>
  22 #include <stdarg.h>
  23 #include <pthread.h>
  24 #include <signal.h>
  25 #include <time.h>
  26 #include "webcit.h"
  27 #include "webserver.h"
  28
  29 #ifndef HAVE_ICAL_H
  30
  31 void do_calendar_view(void) {   /* stub for non-libical builds */
  32         wprintf("<CENTER><I>Calendar view not available</I></CENTER><BR>\n");
  33 }
  34
  35 #else   /* HAVE_ICAL_H */
  36
  37 /****************************************************************************/
  38
  39 void calendar_month_view_display_events(time_t thetime) {
  40         int i;
  41         struct tm *tm;
  42         icalproperty *p;
  43         struct icaltimetype t;
  44         int month, day, year;
  45
  46         if (WC->num_cal == 0) {
  47                 wprintf("<BR><BR><BR>\n");
  48                 return;
  49         }
  50
  51         tm = localtime(&thetime);
  52         month = tm->tm_mon + 1;
  53         day = tm->tm_mday;
  54         year = tm->tm_year + 1900;
  55
  56         for (i=0; i<(WC->num_cal); ++i) {
  57                 p = icalcomponent_get_first_property(WC->disp_cal[i],
  58                                                 ICAL_DTSTART_PROPERTY);
  59                 if (p != NULL) {
  60                         t = icalproperty_get_dtstart(p);
  61                         if ((t.year == year)
  62                            && (t.month == month)
  63                            && (t.day == day)) {
  64
  65                                 p = icalcomponent_get_first_property(
  66                                                         WC->disp_cal[i],
  67                                                         ICAL_SUMMARY_PROPERTY);
  68                                 if (p != NULL) {
  69                                         wprintf("<FONT SIZE=-1>"
  70                                                 "<A HREF=\"/display_edit_event?msgnum=%ld&calview=%s&year=%s&month=%s&day=%s\">",
  71                                                 WC->cal_msgnum[i],
  72                                                 bstr("calview"),
  73                                                 bstr("year"),
  74                                                 bstr("month"),
  75                                                 bstr("day")
  76                                         );
  77                                         escputs((char *)
  78                                                 icalproperty_get_comment(p));
  79                                         wprintf("</A></FONT>\n");
  80                                 }
  81
  82                         }
  83
  84
  85                 }
  86         }
  87 }
  88
  89
  90
  91 void calendar_month_view(int year, int month, int day) {
  92         struct tm starting_tm;
  93         struct tm *tm;
  94         time_t thetime;
  95         int i;
  96         time_t previous_month;
  97         time_t next_month;
  98
  99         /* Determine what day to start.
 100          * First, back up to the 1st of the month...
 101          */
 102         memset(&starting_tm, 0, sizeof(struct tm));
 103         starting_tm.tm_year = year - 1900;
 104         starting_tm.tm_mon = month - 1;
 105         starting_tm.tm_mday = day;
 106         thetime = mktime(&starting_tm);
 107
 108         tm = &starting_tm;
 109         while (tm->tm_mday != 1) {
 110                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 111                 tm = localtime(&thetime);
 112         }
 113
 114         /* Determine previous and next months ... for links */
 115         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 116         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 117         lprintf(9, "previous month is %s", asctime(localtime(&previous_month)));
 118         lprintf(9, "next month is %s", asctime(localtime(&next_month)));
 119
 120         /* Now back up until we're on a Sunday */
 121         tm = localtime(&thetime);
 122         while (tm->tm_wday != 0) {
 123                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 124                 tm = localtime(&thetime);
 125         }
 126
 127         /* Outer table (to get the background color) */
 128         wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0 "
 129                 "bgcolor=#4444FF><TR><TD>\n");
 130
 131         wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0>"
 132                 "<TR><TD align=left><font color=#FFFFFF>"
 133                 "&nbsp;<A HREF=\"/display_edit_event?msgnum=0\">"
 134                 "Add new calendar event</A>"
 135                 "</font></TD>\n");
 136
 137         wprintf("<TD><CENTER><H3>");
 138
 139         tm = localtime(&previous_month);
 140         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 141                 (int)(tm->tm_year)+1900, tm->tm_mon + 1);
 142         wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/back.gif\" BORDER=0></A>\n");
 143
 144         wprintf("&nbsp;&nbsp;"
 145                 "<FONT COLOR=#FFFFFF>"
 146                 "%s %d"
 147                 "</FONT>"
 148                 "&nbsp;&nbsp;", months[month-1], year);
 149
 150         tm = localtime(&next_month);
 151         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 152                 (int)(tm->tm_year)+1900, tm->tm_mon + 1);
 153         wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/forward.gif\" BORDER=0></A>\n");
 154
 155         wprintf("</H3></TD><TD align=right><font color=#FFFFFF size=-2>"
 156                 "Click on any date for day view&nbsp;"
 157                 "</FONT></TD></TR></TABLE>\n");
 158
 159         /* Inner table (the real one) */
 160         wprintf("<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
 161                 "bgcolor=#4444FF>");
 162         for (i=0; i<7; ++i) {
 163                 wprintf("<TH><FONT COLOR=#FFFFFF>%s</FONT></TH>", days[i]);
 164         }
 165
 166         /* Now do 35 days */
 167         for (i = 0; i < 35; ++i) {
 168                 tm = localtime(&thetime);
 169                 if (tm->tm_wday == 0) {
 170                         wprintf("<TR>");
 171                 }
 172
 173                 wprintf("<TD BGCOLOR=FFFFFF WIDTH=14%% HEIGHT=60 VALIGN=TOP>"
 174                         "<B>");
 175                 if ((i==0) || (tm->tm_mday == 1)) {
 176                         wprintf("%s ", months[tm->tm_mon]);
 177                 }
 178                 wprintf("<A HREF=\"readfwd?calview=day&year=%d&month=%d&day=%d\">"
 179                         "%d</A></B><BR>",
 180                         tm->tm_year + 1900,
 181                         tm->tm_mon + 1,
 182                         tm->tm_mday,
 183                         tm->tm_mday);
 184
 185                 /* put the data here, stupid */
 186                 calendar_month_view_display_events(thetime);
 187
 188                 wprintf("</TD>");
 189
 190                 if (tm->tm_wday == 6) {
 191                         wprintf("</TR>\n");
 192                 }
 193
 194                 thetime += (time_t)86400;               /* ahead 24 hours */
 195         }
 196
 197         wprintf("</TABLE>"                      /* end of inner table */
 198                 "</TD></TR></TABLE>"            /* end of outer table */
 199                 "</CENTER>\n");
 200 }
 201
 202
 203 void calendar_week_view(int year, int month, int day) {
 204         wprintf("<CENTER><I>week view FIXME</I></CENTER><BR>\n");
 205 }
 206
 207
 208 void calendar_day_view(int year, int month, int day) {
 209         struct tm starting_tm;
 210         time_t thetime;
 211         int i;
 212
 213         /* Determine what day we're viewing.
 214          */
 215         memset(&starting_tm, 0, sizeof(struct tm));
 216         starting_tm.tm_year = year - 1900;
 217         starting_tm.tm_mon = month - 1;
 218         starting_tm.tm_mday = day;
 219         thetime = mktime(&starting_tm);
 220
 221
 222 /**********************************************************************/
 223
 224         /* Outer table (to get the background color) */
 225         wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0 "
 226                 "bgcolor=#4444FF><TR><TD>\n");
 227
 228         /* Inner table (the real one) */
 229         wprintf("<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
 230                 "bgcolor=#4444FF><TR>\n");
 231
 232         wprintf("<TD WIDTH=50%% VALIGN=top>");  /* begin stuff-on-the-left */
 233
 234         wprintf("<CENTER><H3><FONT COLOR=#FFFFFF>"
 235                 "%s %d, %d"
 236                 "</FONT></H3></CENTER>\n",
 237                 months[month-1], day, year);
 238
 239         wprintf("<CENTER><font color=#FFFFFF>"
 240                 "&nbsp;<A HREF=\"/display_edit_event?msgnum=0\">"
 241                 "Add new calendar event</A>"
 242                 "<BR><BR>\n");
 243
 244         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">"
 245                 "Back to month view</A>\n", year, month);
 246
 247         wprintf("</FONT></CENTER>\n");
 248
 249         wprintf("</TD>");                       /* end stuff-on-the-left */
 250
 251         /* Innermost table (contains hours etc.) */
 252         wprintf("<TD WIDTH=50%%>"
 253                 "<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
 254                 "bgcolor=#4444FF>\n");
 255
 256         /* Now do 7 hours */
 257         for (i = 0; i < 7; ++i) {
 258                 wprintf("<TR><TD BGCOLOR=FFFFFF HEIGHT=60 VALIGN=TOP>");
 259
 260                 /* put the data here, stupid  ... FIXME add hour */
 261                 calendar_month_view_display_events(thetime);
 262
 263                 wprintf("</TD></TR>\n");
 264         }
 265
 266         wprintf("</TABLE>"                      /* end of innermost table */
 267                 "</TD></TR></TABLE>"            /* end of inner table */
 268                 "</TD></TR></TABLE>"            /* end of outer table */
 269         );
 270
 271
 272
 273 }
 274
 275
 276
 277
 278 void do_calendar_view(void) {
 279         int i;
 280         time_t now;
 281         struct tm *tm;
 282         int year, month, day;
 283         char calview[SIZ];
 284
 285         /* In case no date was specified, go with today */
 286         now = time(NULL);
 287         tm = localtime(&now);
 288         year = tm->tm_year + 1900;
 289         month = tm->tm_mon + 1;
 290         day = tm->tm_mday;
 291
 292         /* Now see if a date was specified */
 293         if (strlen(bstr("year")) > 0) year = atoi(bstr("year"));
 294         if (strlen(bstr("month")) > 0) month = atoi(bstr("month"));
 295         if (strlen(bstr("day")) > 0) day = atoi(bstr("day"));
 296
 297         /* How would you like that cooked? */
 298         if (strlen(bstr("calview")) > 0) {
 299                 strcpy(calview, bstr("calview"));
 300         }
 301         else {
 302                 strcpy(calview, "month");
 303         }
 304
 305         /* Display the selected view */
 306         if (!strcasecmp(calview, "day")) {
 307                 calendar_day_view(year, month, day);
 308         }
 309         else if (!strcasecmp(calview, "week")) {
 310                 calendar_week_view(year, month, day);
 311         }
 312         else {
 313                 calendar_month_view(year, month, day);
 314         }
 315
 316         /* Free the calendar stuff */
 317         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
 318                 icalcomponent_free(WC->disp_cal[i]);
 319         }
 320         WC->num_cal = 0;
 321         free(WC->disp_cal);
 322         WC->disp_cal = NULL;
 323         free(WC->cal_msgnum);
 324         WC->cal_msgnum = NULL;
 325 }
 326
 327
 328 #endif  /* HAVE_ICAL_H */