/*
- * $Id$
- *
- * Server-side module for Wiki rooms. This will handle things like version control.
+ * Server-side module for Wiki rooms. This handles things like version control.
*
- * Copyright (c) 2009-2009 by the citadel.org team
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
+ * Copyright (c) 2009-2020 by the citadel.org team
*
- * 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.
+ * 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.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * 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 "sysdep.h"
#include "support.h"
#include "config.h"
#include "control.h"
-#include "room_ops.h"
#include "user_ops.h"
-#include "policy.h"
+#include "room_ops.h"
#include "database.h"
#include "msgbase.h"
#include "euidindex.h"
#include "ctdl_module.h"
+/*
+ * Data passed back and forth between wiki_rev() and its MIME parser callback
+ */
+struct HistoryEraserCallBackData {
+ char *tempfilename; /* name of temp file being patched */
+ char *stop_when; /* stop when we hit this uuid */
+ int done; /* set to nonzero when we're done patching */
+};
+
+/*
+ * Name of the temporary room we create to store old revisions when someone requests them.
+ * We put it in an invalid namespace so the DAP cleans up after us later.
+ */
+char *wwm = "9999999999.WikiWaybackMachine";
+
/*
* Before allowing a wiki page save to execute, we have to perform version control.
- * This involves fetching the old version of the page if it exists... FIXME finish this
+ * This involves fetching the old version of the page if it exists.
*/
-int wiki_upload_beforesave(struct CtdlMessage *msg) {
+int wiki_upload_beforesave(struct CtdlMessage *msg, recptypes *recp) {
struct CitContext *CCC = CC;
long old_msgnum = (-1L);
struct CtdlMessage *old_msg = NULL;
struct CtdlMessage *history_msg = NULL;
char diff_old_filename[PATH_MAX];
char diff_new_filename[PATH_MAX];
+ char diff_out_filename[PATH_MAX];
char diff_cmd[PATH_MAX];
FILE *fp;
int rv;
char history_page[1024];
+ long history_page_len;
char boundary[256];
- int nbytes = 0;
+ char prefixed_boundary[258];
+ char buf[1024];
char *diffbuf = NULL;
size_t diffbuf_len = 0;
+ char *ptr = NULL;
+ long newmsgid;
+ StrBuf *msgidbuf;
if (!CCC->logged_in) return(0); /* Only do this if logged in. */
/* Is this a room with a Wiki in it, don't run this hook. */
- if (CCC->room.QRdefaultview != VIEW_WIKI) {
+ if ((CCC->room.QRdefaultview != VIEW_WIKI) &&
+ (CCC->room.QRdefaultview != VIEW_WIKIMD)) {
return(0);
}
/* If this isn't a MIME message, don't bother. */
if (msg->cm_format_type != 4) return(0);
- /* If there's no EUID we can't do this. */
- if (msg->cm_fields['E'] == NULL) return(0);
+ /* If there's no EUID we can't do this. Reject the post. */
+ if (CM_IsEmpty(msg, eExclusiveID)) return(1);
- /* If there's no message text, obviously this is all b0rken and shouldn't happen at all */
- if (msg->cm_fields['M'] == NULL) return(0);
+ newmsgid = get_new_message_number();
+ msgidbuf = NewStrBuf();
+ StrBufPrintf(msgidbuf, "%08lX-%08lX@%s/%s",
+ (long unsigned int) time(NULL),
+ (long unsigned int) newmsgid,
+ CtdlGetConfigStr("c_fqdn"),
+ msg->cm_fields[eExclusiveID]
+ );
- /* See if we can retrieve the previous version. */
- old_msgnum = locate_message_by_euid(msg->cm_fields['E'], &CCC->room);
- if (old_msgnum <= 0L) return(0);
- snprintf(history_page, sizeof history_page, "%s_HISTORY_", msg->cm_fields['E']);
+ CM_SetAsFieldSB(msg, emessageId, &msgidbuf);
- old_msg = CtdlFetchMessage(old_msgnum, 1);
- if (old_msg == NULL) return(0);
+ history_page_len = snprintf(history_page, sizeof history_page,
+ "%s_HISTORY_", msg->cm_fields[eExclusiveID]);
- if (old_msg->cm_fields['M'] == NULL) { /* old version is corrupt? */
- CtdlFreeMessage(old_msg);
+ /* Make sure we're saving a real wiki page rather than a wiki history page.
+ * This is important in order to avoid recursing infinitely into this hook.
+ */
+ if ( (msg->cm_lengths[eExclusiveID] >= 9)
+ && (!strcasecmp(&msg->cm_fields[eExclusiveID][msg->cm_lengths[eExclusiveID]-9], "_HISTORY_"))
+ ) {
+ syslog(LOG_DEBUG, "History page not being historied\n");
return(0);
}
+ /* If there's no message text, obviously this is all b0rken and shouldn't happen at all */
+ if (CM_IsEmpty(msg, eMesageText)) return(0);
+
+ /* Set the message subject identical to the page name */
+ CM_CopyField(msg, eMsgSubject, eExclusiveID);
+
+ /* See if we can retrieve the previous version. */
+ old_msgnum = CtdlLocateMessageByEuid(msg->cm_fields[eExclusiveID], &CCC->room);
+ if (old_msgnum > 0L) {
+ old_msg = CtdlFetchMessage(old_msgnum, 1);
+ }
+ else {
+ old_msg = NULL;
+ }
+
+ if ((old_msg != NULL) && (CM_IsEmpty(old_msg, eMesageText))) { /* old version is corrupt? */
+ CM_Free(old_msg);
+ old_msg = NULL;
+ }
+
/* If no changes were made, don't bother saving it again */
- if (!strcmp(msg->cm_fields['M'], old_msg->cm_fields['M'])) {
- CtdlFreeMessage(old_msg);
+ if ((old_msg != NULL) && (!strcmp(msg->cm_fields[eMesageText], old_msg->cm_fields[eMesageText]))) {
+ CM_Free(old_msg);
return(1);
}
*/
CtdlMakeTempFileName(diff_old_filename, sizeof diff_old_filename);
CtdlMakeTempFileName(diff_new_filename, sizeof diff_new_filename);
+ CtdlMakeTempFileName(diff_out_filename, sizeof diff_out_filename);
- fp = fopen(diff_old_filename, "w");
- rv = fwrite(old_msg->cm_fields['M'], strlen(old_msg->cm_fields['M']), 1, fp);
- fclose(fp);
- CtdlFreeMessage(old_msg);
+ if (old_msg != NULL) {
+ fp = fopen(diff_old_filename, "w");
+ rv = fwrite(old_msg->cm_fields[eMesageText], old_msg->cm_lengths[eMesageText], 1, fp);
+ fclose(fp);
+ CM_Free(old_msg);
+ }
fp = fopen(diff_new_filename, "w");
- rv = fwrite(msg->cm_fields['M'], strlen(msg->cm_fields['M']), 1, fp);
+ rv = fwrite(msg->cm_fields[eMesageText], msg->cm_lengths[eMesageText], 1, fp);
fclose(fp);
+ snprintf(diff_cmd, sizeof diff_cmd,
+ DIFF " -u %s %s >%s",
+ diff_new_filename,
+ ((old_msg != NULL) ? diff_old_filename : "/dev/null"),
+ diff_out_filename
+ );
+ syslog(LOG_DEBUG, "diff cmd: %s", diff_cmd);
+ rv = system(diff_cmd);
+ syslog(LOG_DEBUG, "diff cmd returned %d", rv);
+
diffbuf_len = 0;
diffbuf = NULL;
- snprintf(diff_cmd, sizeof diff_cmd, "diff -u %s %s", diff_old_filename, diff_new_filename);
- fp = popen(diff_cmd, "r");
+ fp = fopen(diff_out_filename, "r");
+ if (fp == NULL) {
+ fp = fopen("/dev/null", "r");
+ }
if (fp != NULL) {
- do {
- diffbuf = realloc(diffbuf, diffbuf_len + 1025);
- nbytes = fread(&diffbuf[diffbuf_len], 1, 1024, fp);
- diffbuf_len += nbytes;
- } while (nbytes == 1024);
- diffbuf[diffbuf_len] = 0;
- pclose(fp);
+ fseek(fp, 0L, SEEK_END);
+ diffbuf_len = ftell(fp);
+ fseek(fp, 0L, SEEK_SET);
+ diffbuf = malloc(diffbuf_len + 1);
+ fread(diffbuf, diffbuf_len, 1, fp);
+ diffbuf[diffbuf_len] = '\0';
+ fclose(fp);
}
- CtdlLogPrintf(CTDL_DEBUG, "diff length is %d bytes\n", diffbuf_len);
+
+ syslog(LOG_DEBUG, "diff length is "SIZE_T_FMT" bytes", diffbuf_len);
unlink(diff_old_filename);
unlink(diff_new_filename);
+ unlink(diff_out_filename);
/* Determine whether this was a bogus (empty) edit */
if ((diffbuf_len = 0) && (diffbuf != NULL)) {
return(1); /* No changes at all? Abandon the post entirely! */
}
- free(diffbuf); /* FIXME do something with it */
-
/* Now look for the existing edit history */
- history_msgnum = locate_message_by_euid(history_page, &CCC->room);
+ history_msgnum = CtdlLocateMessageByEuid(history_page, &CCC->room);
history_msg = NULL;
if (history_msgnum > 0L) {
- history_msg = CtdlFetchMessage(old_msgnum, 1);
+ history_msg = CtdlFetchMessage(history_msgnum, 1);
}
/* Create a new history message if necessary */
if (history_msg == NULL) {
+ char *buf;
+ long len;
+
history_msg = malloc(sizeof(struct CtdlMessage));
memset(history_msg, 0, sizeof(struct CtdlMessage));
history_msg->cm_magic = CTDLMESSAGE_MAGIC;
history_msg->cm_anon_type = MES_NORMAL;
history_msg->cm_format_type = FMT_RFC822;
- history_msg->cm_fields['A'] = strdup("Citadel");
- history_msg->cm_fields['R'] = strdup(CCC->room.QRname);
+ CM_SetField(history_msg, eAuthor, HKEY("Citadel"));
+ if (!IsEmptyStr(CCC->room.QRname)){
+ CM_SetField(history_msg, eRecipient, CCC->room.QRname, strlen(CCC->room.QRname));
+ }
+ CM_SetField(history_msg, eExclusiveID, history_page, history_page_len);
+ CM_SetField(history_msg, eMsgSubject, history_page, history_page_len);
+ CM_SetField(history_msg, eSuppressIdx, HKEY("1")); /* suppress full text indexing */
snprintf(boundary, sizeof boundary, "Citadel--Multipart--%04x--%08lx", getpid(), time(NULL));
- history_msg->cm_fields['M'] = malloc(1024);
- snprintf(history_msg->cm_fields['M'], 1024,
- "Content-type: multipart/mixed; boundary=\"%s\"\n\n"
- "This is a Citadel wiki history encoded as multipart MIME.\n"
- "--%s--\n"
- ,
- boundary, boundary
+ buf = (char*) malloc(1024);
+ len = snprintf(buf, 1024,
+ "Content-type: multipart/mixed; boundary=\"%s\"\n\n"
+ "This is a Citadel wiki history encoded as multipart MIME.\n"
+ "Each part is comprised of a diff script representing one change set.\n"
+ "\n"
+ "--%s--\n",
+ boundary, boundary
);
+ CM_SetAsField(history_msg, eMesageText, &buf, len);
}
/* Update the history message (regardless of whether it's new or existing) */
- /* FIXME now do something with it */
- CtdlLogPrintf(CTDL_DEBUG, "\033[31m%s\033[0m", history_msg->cm_fields['M']);
- /* FIXME */
+ /* Remove the Message-ID from the old version of the history message. This will cause a brand
+ * new one to be generated, avoiding an uninitentional hit of the loop zapper when we replicate.
+ */
+ CM_FlushField(history_msg, emessageId);
+
+ /* Figure out the boundary string. We do this even when we generated the
+ * boundary string in the above code, just to be safe and consistent.
+ */
+ *boundary = '\0';
+
+ ptr = history_msg->cm_fields[eMesageText];
+ do {
+ ptr = memreadline(ptr, buf, sizeof buf);
+ if (*ptr != 0) {
+ striplt(buf);
+ if (!IsEmptyStr(buf) && (!strncasecmp(buf, "Content-type:", 13))) {
+ if (
+ (bmstrcasestr(buf, "multipart") != NULL)
+ && (bmstrcasestr(buf, "boundary=") != NULL)
+ ) {
+ safestrncpy(boundary, bmstrcasestr(buf, "\""), sizeof boundary);
+ char *qu;
+ qu = strchr(boundary, '\"');
+ if (qu) {
+ strcpy(boundary, ++qu);
+ }
+ qu = strchr(boundary, '\"');
+ if (qu) {
+ *qu = 0;
+ }
+ }
+ }
+ }
+ } while ( (IsEmptyStr(boundary)) && (*ptr != 0) );
+
+ /*
+ * Now look for the first boundary. That is where we need to insert our fun.
+ */
+ if (!IsEmptyStr(boundary)) {
+ char *MsgText;
+ long MsgTextLen;
+ time_t Now = time(NULL);
+
+ snprintf(prefixed_boundary, sizeof(prefixed_boundary), "--%s", boundary);
+
+ CM_GetAsField(history_msg, eMesageText, &MsgText, &MsgTextLen);
+
+ ptr = bmstrcasestr(MsgText, prefixed_boundary);
+ if (ptr != NULL) {
+ StrBuf *NewMsgText;
+ char uuid[64];
+ char memo[512];
+ long memolen;
+ char encoded_memo[1024];
+
+ NewMsgText = NewStrBufPlain(NULL, MsgTextLen + diffbuf_len + 1024);
- free(history_msg);
+ generate_uuid(uuid);
+ memolen = snprintf(memo, sizeof(memo), "%s|%ld|%s|%s",
+ uuid,
+ Now,
+ CCC->user.fullname,
+ CtdlGetConfigStr("c_nodename"));
+
+ memolen = CtdlEncodeBase64(encoded_memo, memo, memolen, 0);
+
+ StrBufAppendBufPlain(NewMsgText, HKEY("--"), 0);
+ StrBufAppendBufPlain(NewMsgText, boundary, -1, 0);
+ StrBufAppendBufPlain(
+ NewMsgText,
+ HKEY("\n"
+ "Content-type: text/plain\n"
+ "Content-Disposition: inline; filename=\""), 0);
+
+ StrBufAppendBufPlain(NewMsgText, encoded_memo, memolen, 0);
+
+ StrBufAppendBufPlain(
+ NewMsgText,
+ HKEY("\"\n"
+ "Content-Transfer-Encoding: 8bit\n"
+ "\n"), 0);
+
+ StrBufAppendBufPlain(NewMsgText, diffbuf, diffbuf_len, 0);
+ StrBufAppendBufPlain(NewMsgText, HKEY("\n"), 0);
+
+ StrBufAppendBufPlain(NewMsgText, ptr, MsgTextLen - (ptr - MsgText), 0);
+ free(MsgText);
+ CM_SetAsFieldSB(history_msg, eMesageText, &NewMsgText);
+ }
+ else
+ {
+ CM_SetAsField(history_msg, eMesageText, &MsgText, MsgTextLen);
+ }
+
+ CM_SetFieldLONG(history_msg, eTimestamp, Now);
+
+ CtdlSubmitMsg(history_msg, NULL, "");
+ }
+ else {
+ syslog(LOG_ALERT, "Empty boundary string in history message. No history!\n");
+ }
+
+ free(diffbuf);
+ CM_Free(history_msg);
return(0);
}
+/*
+ * MIME Parser callback for wiki_history()
+ *
+ * The "filename" field will contain a memo field. All we have to do is decode
+ * the base64 and output it. The data is already in a delimited format suitable
+ * for our client protocol.
+ */
+void wiki_history_callback(char *name, char *filename, char *partnum, char *disp,
+ void *content, char *cbtype, char *cbcharset, size_t length,
+ char *encoding, char *cbid, void *cbuserdata)
+{
+ char memo[1024];
+
+ CtdlDecodeBase64(memo, filename, strlen(filename));
+ cprintf("%s\n", memo);
+}
+
+
+/*
+ * Fetch a list of revisions for a particular wiki page
+ */
+void wiki_history(char *pagename) {
+ int r;
+ char history_page_name[270];
+ long msgnum;
+ struct CtdlMessage *msg;
+
+ r = CtdlDoIHavePermissionToReadMessagesInThisRoom();
+ if (r != om_ok) {
+ if (r == om_not_logged_in) {
+ cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
+ }
+ else {
+ cprintf("%d An unknown error has occurred.\n", ERROR);
+ }
+ return;
+ }
+
+ snprintf(history_page_name, sizeof history_page_name, "%s_HISTORY_", pagename);
+ msgnum = CtdlLocateMessageByEuid(history_page_name, &CC->room);
+ if (msgnum > 0L) {
+ msg = CtdlFetchMessage(msgnum, 1);
+ }
+ else {
+ msg = NULL;
+ }
+
+ if ((msg != NULL) && CM_IsEmpty(msg, eMesageText)) {
+ CM_Free(msg);
+ msg = NULL;
+ }
+
+ if (msg == NULL) {
+ cprintf("%d Revision history for '%s' was not found.\n", ERROR+MESSAGE_NOT_FOUND, pagename);
+ return;
+ }
+
+
+ cprintf("%d Revision history for '%s'\n", LISTING_FOLLOWS, pagename);
+ mime_parser(CM_RANGE(msg, eMesageText), *wiki_history_callback, NULL, NULL, NULL, 0);
+ cprintf("000\n");
+
+ CM_Free(msg);
+ return;
+}
+
+/*
+ * MIME Parser callback for wiki_rev()
+ *
+ * The "filename" field will contain a memo field, which includes (among other things)
+ * the uuid of this revision. After we hit the desired revision, we stop processing.
+ *
+ * The "content" filed will contain "diff" output suitable for applying via "patch"
+ * to our temporary file.
+ */
+void wiki_rev_callback(char *name, char *filename, char *partnum, char *disp,
+ void *content, char *cbtype, char *cbcharset, size_t length,
+ char *encoding, char *cbid, void *cbuserdata)
+{
+ struct HistoryEraserCallBackData *hecbd = (struct HistoryEraserCallBackData *)cbuserdata;
+ char memo[1024];
+ char this_rev[256];
+ FILE *fp;
+ char *ptr = NULL;
+ char buf[1024];
+
+ /* Did a previous callback already indicate that we've reached our target uuid?
+ * If so, don't process anything else.
+ */
+ if (hecbd->done) {
+ return;
+ }
+
+ CtdlDecodeBase64(memo, filename, strlen(filename));
+ extract_token(this_rev, memo, 0, '|', sizeof this_rev);
+ striplt(this_rev);
+
+ /* Perform the patch */
+ fp = popen(PATCH " -f -s -p0 -r /dev/null >/dev/null 2>/dev/null", "w");
+ if (fp) {
+ /* Replace the filenames in the patch with the tempfilename we're actually tweaking */
+ fprintf(fp, "--- %s\n", hecbd->tempfilename);
+ fprintf(fp, "+++ %s\n", hecbd->tempfilename);
+
+ ptr = (char *)content;
+ int linenum = 0;
+ do {
+ ++linenum;
+ ptr = memreadline(ptr, buf, sizeof buf);
+ if (*ptr != 0) {
+ if (linenum <= 2) {
+ /* skip the first two lines; they contain bogus filenames */
+ }
+ else {
+ fprintf(fp, "%s\n", buf);
+ }
+ }
+ } while ((*ptr != 0) && (ptr < ((char*)content + length)));
+ if (pclose(fp) != 0) {
+ syslog(LOG_ERR, "pclose() returned an error - patch failed\n");
+ }
+ }
+
+ if (!strcasecmp(this_rev, hecbd->stop_when)) {
+ /* Found our target rev. Tell any subsequent callbacks to suppress processing. */
+ syslog(LOG_DEBUG, "Target revision has been reached -- stop patching.\n");
+ hecbd->done = 1;
+ }
+}
+
+
+/*
+ * Fetch a specific revision of a wiki page. The "operation" string may be set to "fetch" in order
+ * to simply fetch the desired revision and store it in a temporary location for viewing, or "revert"
+ * to revert the currently active page to that revision.
+ */
+void wiki_rev(char *pagename, char *rev, char *operation)
+{
+ struct CitContext *CCC = CC;
+ int r;
+ char history_page_name[270];
+ long msgnum;
+ char temp[PATH_MAX];
+ struct CtdlMessage *msg;
+ FILE *fp;
+ struct HistoryEraserCallBackData hecbd;
+ long len = 0L;
+ int rv;
+
+ r = CtdlDoIHavePermissionToReadMessagesInThisRoom();
+ if (r != om_ok) {
+ if (r == om_not_logged_in) {
+ cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
+ }
+ else {
+ cprintf("%d An unknown error has occurred.\n", ERROR);
+ }
+ return;
+ }
+
+ if (!strcasecmp(operation, "revert")) {
+ r = CtdlDoIHavePermissionToPostInThisRoom(temp, sizeof temp, NULL, POST_LOGGED_IN, 0);
+ if (r != 0) {
+ cprintf("%d %s\n", r, temp);
+ return;
+ }
+ }
+
+ /* Begin by fetching the current version of the page. We're going to patch
+ * backwards through the diffs until we get the one we want.
+ */
+ msgnum = CtdlLocateMessageByEuid(pagename, &CCC->room);
+ if (msgnum > 0L) {
+ msg = CtdlFetchMessage(msgnum, 1);
+ }
+ else {
+ msg = NULL;
+ }
+
+ if ((msg != NULL) && CM_IsEmpty(msg, eMesageText)) {
+ CM_Free(msg);
+ msg = NULL;
+ }
+
+ if (msg == NULL) {
+ cprintf("%d Page '%s' was not found.\n", ERROR+MESSAGE_NOT_FOUND, pagename);
+ return;
+ }
+
+ /* Output it to a temporary file */
+
+ CtdlMakeTempFileName(temp, sizeof temp);
+ fp = fopen(temp, "w");
+ if (fp != NULL) {
+ r = fwrite(msg->cm_fields[eMesageText], msg->cm_lengths[eMesageText], 1, fp);
+ fclose(fp);
+ }
+ else {
+ syslog(LOG_ERR, "%s: %m", temp);
+ }
+ CM_Free(msg);
+
+ /* Get the revision history */
+
+ snprintf(history_page_name, sizeof history_page_name, "%s_HISTORY_", pagename);
+ msgnum = CtdlLocateMessageByEuid(history_page_name, &CCC->room);
+ if (msgnum > 0L) {
+ msg = CtdlFetchMessage(msgnum, 1);
+ }
+ else {
+ msg = NULL;
+ }
+
+ if ((msg != NULL) && CM_IsEmpty(msg, eMesageText)) {
+ CM_Free(msg);
+ msg = NULL;
+ }
+
+ if (msg == NULL) {
+ cprintf("%d Revision history for '%s' was not found.\n", ERROR+MESSAGE_NOT_FOUND, pagename);
+ return;
+ }
+
+ /* Start patching backwards (newest to oldest) through the revision history until we
+ * hit the revision uuid requested by the user. (The callback will perform each one.)
+ */
+
+ memset(&hecbd, 0, sizeof(struct HistoryEraserCallBackData));
+ hecbd.tempfilename = temp;
+ hecbd.stop_when = rev;
+ striplt(hecbd.stop_when);
+
+ mime_parser(CM_RANGE(msg, eMesageText), *wiki_rev_callback, NULL, NULL, (void *)&hecbd, 0);
+ CM_Free(msg);
+
+ /* Were we successful? */
+ if (hecbd.done == 0) {
+ cprintf("%d Revision '%s' of page '%s' was not found.\n",
+ ERROR + MESSAGE_NOT_FOUND, rev, pagename
+ );
+ }
+
+ /* We have the desired revision on disk. Now do something with it. */
+
+ else if ( (!strcasecmp(operation, "fetch")) || (!strcasecmp(operation, "revert")) ) {
+ msg = malloc(sizeof(struct CtdlMessage));
+ memset(msg, 0, sizeof(struct CtdlMessage));
+ msg->cm_magic = CTDLMESSAGE_MAGIC;
+ msg->cm_anon_type = MES_NORMAL;
+ msg->cm_format_type = FMT_RFC822;
+ fp = fopen(temp, "r");
+ if (fp) {
+ char *msgbuf;
+ fseek(fp, 0L, SEEK_END);
+ len = ftell(fp);
+ fseek(fp, 0L, SEEK_SET);
+ msgbuf = malloc(len + 1);
+ rv = fread(msgbuf, len, 1, fp);
+ syslog(LOG_DEBUG, "did %d blocks of %ld bytes\n", rv, len);
+ msgbuf[len] = '\0';
+ CM_SetAsField(msg, eMesageText, &msgbuf, len);
+ fclose(fp);
+ }
+ if (len <= 0) {
+ msgnum = (-1L);
+ }
+ else if (!strcasecmp(operation, "fetch")) {
+ CM_SetField(msg, eAuthor, HKEY("Citadel"));
+ CtdlCreateRoom(wwm, 5, "", 0, 1, 1, VIEW_BBS); /* Not an error if already exists */
+ msgnum = CtdlSubmitMsg(msg, NULL, wwm); /* Store the revision here */
+
+ /*
+ * WARNING: VILE SLEAZY HACK
+ * This will avoid the 'message xxx is not in this room' security error,
+ * but only if the client fetches the message we just generated immediately
+ * without first trying to perform other fetch operations.
+ */
+ if (CCC->cached_msglist != NULL) {
+ free(CCC->cached_msglist);
+ CCC->cached_msglist = NULL;
+ CCC->cached_num_msgs = 0;
+ }
+ CCC->cached_msglist = malloc(sizeof(long));
+ if (CCC->cached_msglist != NULL) {
+ CCC->cached_num_msgs = 1;
+ CCC->cached_msglist[0] = msgnum;
+ }
+
+ }
+ else if (!strcasecmp(operation, "revert")) {
+ CM_SetFieldLONG(msg, eTimestamp, time(NULL));
+ if (!IsEmptyStr(CCC->user.fullname)) {
+ CM_SetField(msg, eAuthor, CCC->user.fullname, strlen(CCC->user.fullname));
+ }
+
+ if (!IsEmptyStr(CCC->cs_inet_email)) {
+ CM_SetField(msg, erFc822Addr, CCC->cs_inet_email, strlen(CCC->cs_inet_email));
+ }
+
+ if (!IsEmptyStr(CCC->room.QRname)) {
+ CM_SetField(msg, eOriginalRoom, CCC->room.QRname, strlen(CCC->room.QRname));
+ }
+
+ if (!IsEmptyStr(pagename)) {
+ CM_SetField(msg, eExclusiveID, pagename, strlen(pagename));
+ }
+ msgnum = CtdlSubmitMsg(msg, NULL, ""); /* Replace the current revision */
+ }
+ else {
+ /* Theoretically it is impossible to get here, but throw an error anyway */
+ msgnum = (-1L);
+ }
+ CM_Free(msg);
+ if (msgnum >= 0L) {
+ cprintf("%d %ld\n", CIT_OK, msgnum); /* Give the client a msgnum */
+ }
+ else {
+ cprintf("%d Error %ld has occurred.\n", ERROR+INTERNAL_ERROR, msgnum);
+ }
+ }
+
+ /* We did all this work for nothing. Express anguish to the caller. */
+ else {
+ cprintf("%d An unknown operation was requested.\n", ERROR+CMD_NOT_SUPPORTED);
+ }
+
+ unlink(temp);
+ return;
+}
+
+
+
+/*
+ * commands related to wiki management
+ */
+void cmd_wiki(char *argbuf) {
+ char subcmd[32];
+ char pagename[256];
+ char rev[128];
+ char operation[16];
+
+ extract_token(subcmd, argbuf, 0, '|', sizeof subcmd);
+
+ if (!strcasecmp(subcmd, "history")) {
+ extract_token(pagename, argbuf, 1, '|', sizeof pagename);
+ wiki_history(pagename);
+ return;
+ }
+
+ if (!strcasecmp(subcmd, "rev")) {
+ extract_token(pagename, argbuf, 1, '|', sizeof pagename);
+ extract_token(rev, argbuf, 2, '|', sizeof rev);
+ extract_token(operation, argbuf, 3, '|', sizeof operation);
+ wiki_rev(pagename, rev, operation);
+ return;
+ }
+
+ cprintf("%d Invalid subcommand\n", ERROR + CMD_NOT_SUPPORTED);
+}
+
+
+
/*
* Module initialization
*/
if (!threading)
{
CtdlRegisterMessageHook(wiki_upload_beforesave, EVT_BEFORESAVE);
+ CtdlRegisterProtoHook(cmd_wiki, "WIKI", "Commands related to Wiki management");
}
- /* return our Subversion id for the Log */
- return "$Id$";
+ /* return our module name for the log */
+ return "wiki";
}
projects / citadel.git / blobdiff