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webcit  8.12-dfsg
Functions
dav_get.c File Reference
#include "webcit.h"
#include "webserver.h"
#include "dav.h"

Go to the source code of this file.

Functions

void dav_get_big_ics (void)
void extract_preferred (char *name, char *filename, char *partnum, char *disp, void *content, char *cbtype, char *cbcharset, size_t length, char *encoding, char *cbid, void *userdata)
void dav_get (void)

Function Documentation

void dav_get ( void  )

GET on the collection itself returns an ICS of the entire collection.

Definition at line 98 of file dav_get.c.

{
       wcsession *WCC = WC;
       StrBuf *dav_roomname;
       StrBuf *dav_uid;
       long dav_msgnum = (-1);
       char buf[1024];
       int in_body = 0;
       char *ptr;
       char *endptr;
       char *msgtext = NULL;
       size_t msglen = 0;
       size_t msgalloc = 0;
       int linelen;
       char content_type[128];
       char charset[128];
       char date[128];
       struct epdata epdata;

       if (StrBufNum_tokens(WCC->Hdr->HR.ReqLine, '/') < 2) {
              hprintf("HTTP/1.1 404 not found\r\n");
              dav_common_headers();
              hprintf("Content-Type: text/plain\r\n");
              wc_printf("The object you requested was not found.\r\n");
              end_burst();
              return;
       }

       dav_roomname = NewStrBuf();;
       dav_uid = NewStrBuf();;
       StrBufExtract_token(dav_roomname, WCC->Hdr->HR.ReqLine, 0, '/');
       StrBufExtract_token(dav_uid, WCC->Hdr->HR.ReqLine, 1, '/');
       if ((!strcasecmp(ChrPtr(dav_uid), "ics")) || 
           (!strcasecmp(ChrPtr(dav_uid), "calendar.ics"))) {
              FlushStrBuf(dav_uid);
       }

       /* Go to the correct room. */
       if (strcasecmp(ChrPtr(WCC->CurRoom.name), ChrPtr(dav_roomname))) {
              gotoroom(dav_roomname);
       }
       if (strcasecmp(ChrPtr(WCC->CurRoom.name), ChrPtr(dav_roomname))) {
              hprintf("HTTP/1.1 404 not found\r\n");
              dav_common_headers();
              hprintf("Content-Type: text/plain\r\n");
              wc_printf("There is no folder called \"%s\" on this server.\r\n",
                     ChrPtr(dav_roomname));
              end_burst();
              FreeStrBuf(&dav_roomname);
              FreeStrBuf(&dav_uid);
              return;
       }

       if (StrLength(dav_uid) == 0) {
              dav_get_big_ics();
              FreeStrBuf(&dav_roomname);
              FreeStrBuf(&dav_uid);
              return;
       }

       dav_msgnum = locate_message_by_uid(ChrPtr(dav_uid));
       serv_printf("MSG2 %ld", dav_msgnum);
       serv_getln(buf, sizeof buf);
       if (buf[0] != '1') {
              hprintf("HTTP/1.1 404 not found\r\n");
              dav_common_headers();
              hprintf("Content-Type: text/plain\r\n");
              wc_printf("Object \"%s\" was not found in the \"%s\" folder.\r\n",
                     ChrPtr(dav_uid),
                     ChrPtr(dav_roomname));
              end_burst();
              FreeStrBuf(&dav_roomname);
              FreeStrBuf(&dav_uid);
              return;
       }
       FreeStrBuf(&dav_roomname);
       FreeStrBuf(&dav_uid);

       /* We got it; a message is now arriving from the server.  Read it in. */

       in_body = 0;
       strcpy(charset, "UTF-8");
       strcpy(content_type, "text/plain");
       strcpy(date, "");
       while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
              linelen = strlen(buf);

              /* Append it to the buffer */
              if ((msglen + linelen + 3) > msgalloc) {
                     msgalloc = ( (msgalloc > 0) ? (msgalloc * 2) : 1024 );
                     msgtext = realloc(msgtext, msgalloc);
              }
              strcpy(&msgtext[msglen], buf);
              msglen += linelen;
              strcpy(&msgtext[msglen], "\n");
              msglen += 1;

              /* Also learn some things about the message */
              if (linelen == 0) {
                     in_body = 1;
              }
              if (!in_body) {
                     if (!strncasecmp(buf, "Date:", 5)) {
                            safestrncpy(date, &buf[5], sizeof date);
                            striplt(date);
                     }
                     if (!strncasecmp(buf, "Content-type:", 13)) {
                            safestrncpy(content_type, &buf[13], sizeof content_type);
                            striplt(content_type);
                            ptr = bmstrcasestr(&buf[13], "charset=");
                            if (ptr) {
                                   safestrncpy(charset, ptr+8, sizeof charset);
                                   striplt(charset);
                                   endptr = strchr(charset, ';');
                                   if (endptr != NULL) strcpy(endptr, "");
                            }
                            endptr = strchr(content_type, ';');
                            if (endptr != NULL) strcpy(endptr, "");
                     }
              }
       }
       msgtext[msglen] = 0;

       /* Output headers common to single or multi part messages */

       hprintf("HTTP/1.1 200 OK\r\n");
       dav_common_headers();
       hprintf("etag: \"%ld\"\r\n", dav_msgnum);
       hprintf("Date: %s\r\n", date);

       memset(&epdata, 0, sizeof(struct epdata));
       safestrncpy(epdata.charset, charset, sizeof epdata.charset);

       /* If we have a multipart message on our hands, and we are in a groupware room,
        * strip it down to only the relevant part.
        */
       if (!strncasecmp(content_type, "multipart/", 10)) {

              if ( (WCC->CurRoom.defview == VIEW_CALENDAR) || (WCC->CurRoom.defview == VIEW_TASKS) ) {
                     strcpy(epdata.desired_content_type_1, "text/calendar");
              }

              else if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
                     strcpy(epdata.desired_content_type_1, "text/vcard");
                     strcpy(epdata.desired_content_type_2, "text/x-vcard");
              }

              mime_parser(msgtext, &msgtext[msglen], extract_preferred, NULL, NULL, (void *)&epdata, 0);
       }

       /* If epdata.found_section is empty, we haven't output anything yet, so output the whole thing */

       if (IsEmptyStr(epdata.found_section)) {
              ptr = msgtext;
              endptr = &msgtext[msglen];
       
              hprintf("Content-type: %s; charset=%s\r\n", content_type, charset);
       
              in_body = 0;
              do {
                     ptr = memreadline(ptr, buf, sizeof buf);
       
                     if (in_body) {
                            wc_printf("%s\r\n", buf);
                     }
                     else if ((buf[0] == 0) && (in_body == 0)) {
                            in_body = 1;
                            begin_burst();
                     }
              } while (ptr < endptr);
       
              end_burst();
       }

       free(msgtext);
}

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void dav_get_big_ics ( void  )

Definition at line 24 of file dav_get.c.

                           {
       char buf[1024];

       serv_puts("ICAL getics");
       serv_getln(buf, sizeof buf);
       if (buf[0] != '1') {
              hprintf("HTTP/1.1 404 not found\r\n");
              dav_common_headers();
              hprintf("Content-Type: text/plain\r\n");
              begin_burst();
              wc_printf("%s\r\n",
                     &buf[4]
                     );
              end_burst();
              return;
       }

       hprintf("HTTP/1.1 200 OK\r\n");
       dav_common_headers();
       hprintf("Content-type: text/calendar; charset=UTF-8\r\n");
       begin_burst();
       while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
              wc_printf("%s\r\n", buf);
       }
       end_burst();
}

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void extract_preferred ( char *  name,
char *  filename,
char *  partnum,
char *  disp,
void *  content,
char *  cbtype,
char *  cbcharset,
size_t  length,
char *  encoding,
char *  cbid,
void *  userdata 
)

Definition at line 56 of file dav_get.c.

{
       struct epdata *epdata = (struct epdata *)userdata;
       int hit = 0;

       /* We only want the first one that we found */
       if (!IsEmptyStr(epdata->found_section)) return;

       /* Check for a content type match */
       if (strlen(epdata->desired_content_type_1) > 0) {
              if (!strcasecmp(epdata->desired_content_type_1, cbtype)) {
                     hit = 1;
              }
       }
       if (!IsEmptyStr(epdata->desired_content_type_2)) {
              if (!strcasecmp(epdata->desired_content_type_2, cbtype)) {
                     hit = 1;
              }
       }

       /* Is this the one?  If so, output it. */
       if (hit) {
              safestrncpy(epdata->found_section, partnum, sizeof epdata->found_section);
              if (!IsEmptyStr(cbcharset)) {
                     safestrncpy(epdata->charset, cbcharset, sizeof epdata->charset);
              }
              hprintf("Content-type: %s; charset=%s\r\n", cbtype, epdata->charset);
              begin_burst();
              StrBufAppendBufPlain(WC->WBuf, content, length, 0);
              end_burst();
       }
}

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