+++ /dev/null
-/*
- * Server-side module for Wiki rooms. This handles things like version control.
- *
- * Copyright (c) 2009-2021 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 "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <pwd.h>
-#include <errno.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <time.h>
-#include <sys/wait.h>
-#include <string.h>
-#include <limits.h>
-#include <libcitadel.h>
-#include "citadel.h"
-#include "server.h"
-#include "citserver.h"
-#include "support.h"
-#include "config.h"
-#include "control.h"
-#include "user_ops.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.
- */
-int wiki_upload_beforesave(struct CtdlMessage *msg, struct recptypes *recp) {
- long old_msgnum = (-1L);
- struct CtdlMessage *old_msg = NULL;
- long history_msgnum = (-1L);
- 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];
- char prefixed_boundary[258];
- char buf[1024];
- char *diffbuf = NULL;
- size_t diffbuf_len = 0;
- char *ptr = NULL;
- long newmsgid;
- StrBuf *msgidbuf;
-
- if (!CC->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 (CC->room.QRdefaultview != VIEW_WIKI) {
- 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. Reject the post. */
- if (CM_IsEmpty(msg, eExclusiveID)) return(1);
-
- 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]
- );
-
- CM_SetAsFieldSB(msg, emessageId, &msgidbuf);
-
- history_page_len = snprintf(history_page, sizeof history_page,
- "%s_HISTORY_", msg->cm_fields[eExclusiveID]);
-
- /* 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], &CC->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 ((old_msg != NULL) && (!strcmp(msg->cm_fields[eMesageText], old_msg->cm_fields[eMesageText]))) {
- CM_Free(old_msg);
- return(1);
- }
-
- /*
- * Generate diffs
- */
- CtdlMakeTempFileName(diff_old_filename, sizeof diff_old_filename);
- CtdlMakeTempFileName(diff_new_filename, sizeof diff_new_filename);
- CtdlMakeTempFileName(diff_out_filename, sizeof diff_out_filename);
-
- 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[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;
- fp = fopen(diff_out_filename, "r");
- if (fp == NULL) {
- fp = fopen("/dev/null", "r");
- }
- if (fp != NULL) {
- 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);
- }
-
- 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)) {
- free(diffbuf);
- diffbuf = NULL;
- }
- if (diffbuf == NULL) {
- return(1); /* No changes at all? Abandon the post entirely! */
- }
-
- /* Now look for the existing edit history */
-
- history_msgnum = CtdlLocateMessageByEuid(history_page, &CC->room);
- history_msg = NULL;
- if (history_msgnum > 0L) {
- 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;
- CM_SetField(history_msg, eAuthor, HKEY("Citadel"));
- if (!IsEmptyStr(CC->room.QRname)){
- CM_SetField(history_msg, eRecipient, CC->room.QRname, strlen(CC->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));
- 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) */
-
- /* 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);
-
- generate_uuid(uuid);
- memolen = snprintf(memo, sizeof(memo), "%s|%ld|%s|%s",
- uuid,
- Now,
- CC->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)
-{
- 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, &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 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, &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;
- }
-
- /* 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 (CC->cached_msglist != NULL) {
- free(CC->cached_msglist);
- CC->cached_msglist = NULL;
- CC->cached_num_msgs = 0;
- }
- CC->cached_msglist = malloc(sizeof(long));
- if (CC->cached_msglist != NULL) {
- CC->cached_num_msgs = 1;
- CC->cached_msglist[0] = msgnum;
- }
-
- }
- else if (!strcasecmp(operation, "revert")) {
- CM_SetFieldLONG(msg, eTimestamp, time(NULL));
- if (!IsEmptyStr(CC->user.fullname)) {
- CM_SetField(msg, eAuthor, CC->user.fullname, strlen(CC->user.fullname));
- }
-
- if (!IsEmptyStr(CC->cs_inet_email)) {
- CM_SetField(msg, erFc822Addr, CC->cs_inet_email, strlen(CC->cs_inet_email));
- }
-
- if (!IsEmptyStr(CC->room.QRname)) {
- CM_SetField(msg, eOriginalRoom, CC->room.QRname, strlen(CC->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
- */
-CTDL_MODULE_INIT(wiki)
-{
- if (!threading)
- {
- CtdlRegisterMessageHook(wiki_upload_beforesave, EVT_BEFORESAVE);
- CtdlRegisterProtoHook(cmd_wiki, "WIKI", "Commands related to Wiki management");
- }
-
- /* return our module name for the log */
- return "wiki";
-}