X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=webcit%2Fdav_put.c;fp=webcit%2Fdav_put.c;h=8b6935ef1a2cbc94bd39d02b7668f7dd74dc42b8;hb=8611acef7ff4213c28ad20ff755d34509870bc96;hp=0000000000000000000000000000000000000000;hpb=76a0f8571de023fe6bd20390174a2302e0a0b982;p=citadel.git diff --git a/webcit/dav_put.c b/webcit/dav_put.c new file mode 100644 index 000000000..8b6935ef1 --- /dev/null +++ b/webcit/dav_put.c @@ -0,0 +1,237 @@ +/* + * Handles GroupDAV PUT requests. + * + * Copyright (c) 2005-2012 by the citadel.org team + * + * This program is open source software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 3. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include "webcit.h" +#include "webserver.h" +#include "dav.h" + + +/* + * This function is for uploading an ENTIRE calendar, not just one + * component. This would be for webcal:// 'publish' operations, not + * for GroupDAV. + */ +void dav_put_bigics(void) +{ + wcsession *WCC = WC; + char buf[1024]; + + /* + * Tell the server that when we save a calendar event, we + * do *not* want the server to generate invitations. + */ + serv_puts("ICAL sgi|0"); + serv_getln(buf, sizeof buf); + + serv_puts("ICAL putics"); + serv_getln(buf, sizeof buf); + if (buf[0] != '4') { + hprintf("HTTP/1.1 502 Bad Gateway\r\n"); + dav_common_headers(); + hprintf("Content-type: text/plain\r\n"); + begin_burst(); + wc_printf("%s\r\n", &buf[4]); + end_burst(); + return; + } + + serv_putbuf(WCC->upload); + serv_printf("\n000"); + + /* Report success and not much else. */ + hprintf("HTTP/1.1 204 No Content\r\n"); + syslog(LOG_DEBUG, "HTTP/1.1 204 No Content\r\n"); + dav_common_headers(); + begin_burst(); + end_burst(); +} + + + +/* + * The pathname is always going to take one of two formats: + * [/groupdav/]room_name/euid (GroupDAV) + * [/groupdav/]room_name (webcal) + */ +void dav_put(void) +{ + wcsession *WCC = WC; + StrBuf *dav_roomname; + StrBuf *dav_uid; + long new_msgnum = (-2L); + long old_msgnum = (-1L); + char buf[SIZ]; + int n = 0; + + 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"); + begin_burst(); + 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(WC->CurRoom.name), ChrPtr(dav_roomname))) { + gotoroom(dav_roomname); + } + if (strcasecmp(ChrPtr(WC->CurRoom.name), ChrPtr(dav_roomname))) { + hprintf("HTTP/1.1 404 not found\r\n"); + dav_common_headers(); + hprintf("Content-Type: text/plain\r\n"); + begin_burst(); + 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 an HTTP If-Match: header is present, the client is attempting + * to replace an existing item. We have to check to see if the + * message number associated with the supplied uid matches what the + * client is expecting. If not, the server probably contains a newer + * version, so we fail... + */ + if (StrLength(WCC->Hdr->HR.dav_ifmatch) > 0) { + syslog(LOG_DEBUG, "dav_ifmatch: %s\n", ChrPtr(WCC->Hdr->HR.dav_ifmatch)); + old_msgnum = locate_message_by_uid(ChrPtr(dav_uid)); + syslog(LOG_DEBUG, "old_msgnum: %ld\n", old_msgnum); + if (StrTol(WCC->Hdr->HR.dav_ifmatch) != old_msgnum) { + hprintf("HTTP/1.1 412 Precondition Failed\r\n"); + syslog(LOG_INFO, "HTTP/1.1 412 Precondition Failed (ifmatch=%ld, old_msgnum=%ld)\r\n", + StrTol(WCC->Hdr->HR.dav_ifmatch), old_msgnum); + dav_common_headers(); + + end_burst(); + FreeStrBuf(&dav_roomname); + FreeStrBuf(&dav_uid); + return; + } + } + + /** PUT on the collection itself uploads an ICS of the entire collection. + */ + if (StrLength(dav_uid) == 0) { + dav_put_bigics(); + FreeStrBuf(&dav_roomname); + FreeStrBuf(&dav_uid); + return; + } + + /* + * We are cleared for upload! We use the new calling syntax for ENT0 + * which allows a confirmation to be sent back to us. That's how we + * extract the message ID. + */ + serv_puts("ENT0 1|||4|||1|"); + serv_getln(buf, sizeof buf); + if (buf[0] != '8') { + hprintf("HTTP/1.1 502 Bad Gateway\r\n"); + dav_common_headers(); + hprintf("Content-type: text/plain\r\n"); + begin_burst(); + wc_printf("%s\r\n", &buf[4]); + end_burst(); + return; + } + + /* Send the content to the Citadel server */ + //serv_printf("Content-type: %s\n\n", WCC->upload_content_type); + serv_putbuf(WCC->upload); + serv_puts("\n000"); + + /* Fetch the reply from the Citadel server */ + n = 0; + FlushStrBuf(dav_uid); + while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) { + switch(n++) { + case 0: + new_msgnum = atol(buf); + break; + case 1: + syslog(LOG_DEBUG, "new_msgnum=%ld (%s)\n", new_msgnum, buf); + break; + case 2: + StrBufAppendBufPlain(dav_uid, buf, -1, 0); + break; + default: + break; + } + } + + /* Tell the client what happened. */ + + /* Citadel failed in some way? */ + if (new_msgnum < 0L) { + hprintf("HTTP/1.1 502 Bad Gateway\r\n"); + dav_common_headers(); + hprintf("Content-type: text/plain\r\n"); + begin_burst(); + wc_printf("new_msgnum is %ld\r\n" + "\r\n", new_msgnum); + end_burst(); + FreeStrBuf(&dav_roomname); + FreeStrBuf(&dav_uid); + return; + } + + /* We created this item for the first time. */ + if (old_msgnum < 0L) { + char escaped_uid[1024]; + hprintf("HTTP/1.1 201 Created\r\n"); + syslog(LOG_DEBUG, "HTTP/1.1 201 Created\r\n"); + dav_common_headers(); + hprintf("etag: \"%ld\"\r\n", new_msgnum); + hprintf("Location: "); + dav_identify_hosthdr(); + hprintf("/groupdav/");/* TODO */ + hurlescputs(ChrPtr(dav_roomname)); + euid_escapize(escaped_uid, ChrPtr(dav_uid)); + hprintf("/%s\r\n", escaped_uid); + end_burst(); + FreeStrBuf(&dav_roomname); + FreeStrBuf(&dav_uid); + return; + } + + /* We modified an existing item. */ + hprintf("HTTP/1.1 204 No Content\r\n"); + syslog(LOG_DEBUG, "HTTP/1.1 204 No Content\r\n"); + dav_common_headers(); + hprintf("Etag: \"%ld\"\r\n", new_msgnum); + /* The item we replaced has probably already been deleted by + * the Citadel server, but we'll do this anyway, just in case. + */ + serv_printf("DELE %ld", old_msgnum); + serv_getln(buf, sizeof buf); + begin_burst(); + end_burst(); + FreeStrBuf(&dav_roomname); + FreeStrBuf(&dav_uid); + return; +}