*
* Server-side module for Wiki rooms. This will handle things like version control.
*
- * Copyright (c) 2009-2009 by the citadel.org team
+ * Copyright (c) 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
#include "support.h"
#include "config.h"
#include "control.h"
-#include "room_ops.h"
#include "user_ops.h"
#include "policy.h"
#include "database.h"
int rv;
char history_page[1024];
char boundary[256];
- char endary[260];
+ char prefixed_boundary[258];
char buf[1024];
int nbytes = 0;
char *diffbuf = NULL;
/* If there's no EUID we can't do this. */
if (msg->cm_fields['E'] == NULL) return(0);
+ snprintf(history_page, sizeof history_page, "%s_HISTORY_", msg->cm_fields['E']);
/* 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.
/* 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']);
-
- old_msg = CtdlFetchMessage(old_msgnum, 1);
-
- if (old_msg != NULL) {
+ if (old_msgnum > 0L) {
+ old_msg = CtdlFetchMessage(old_msgnum, 1);
+ }
+ else {
+ old_msg = NULL;
+ }
- if (old_msg->cm_fields['M'] == NULL) { /* old version is corrupt? */
- CtdlFreeMessage(old_msg);
- return(0);
- }
+ if ((old_msg != NULL) && (old_msg->cm_fields['M'] == NULL)) { /* old version is corrupt? */
+ CtdlFreeMessage(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);
- return(1);
- }
+ /* If no changes were made, don't bother saving it again */
+ if ((old_msg != NULL) && (!strcmp(msg->cm_fields['M'], old_msg->cm_fields['M']))) {
+ CtdlFreeMessage(old_msg);
+ return(1);
}
/*
diffbuf = NULL;
snprintf(diff_cmd, sizeof diff_cmd,
"diff -u %s %s",
- ((old_msg != NULL) ? diff_old_filename : "/dev/null"),
- diff_new_filename
+ diff_new_filename,
+ ((old_msg != NULL) ? diff_old_filename : "/dev/null")
);
fp = popen(diff_cmd, "r");
if (fp != NULL) {
history_msg->cm_fields['A'] = strdup("Citadel");
history_msg->cm_fields['R'] = strdup(CCC->room.QRname);
history_msg->cm_fields['E'] = strdup(history_page);
+ history_msg->cm_fields['U'] = strdup(history_page);
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"
+ "Each part is comprised of a diff script representing one change set.\n"
+ "\n"
"--%s--\n"
,
boundary, boundary
}
} while ( (IsEmptyStr(boundary)) && (*ptr != 0) );
+ /* Now look for the first boundary. That is where we need to insert our fun.
+ */
if (!IsEmptyStr(boundary)) {
- snprintf(endary, sizeof endary, "--%s--", boundary);
+ snprintf(prefixed_boundary, sizeof prefixed_boundary, "--%s", boundary);
history_msg->cm_fields['M'] = realloc(history_msg->cm_fields['M'],
- strlen(history_msg->cm_fields['M']) + strlen(diffbuf) + 512
+ strlen(history_msg->cm_fields['M']) + strlen(diffbuf) + 1024
);
- ptr = bmstrcasestr(history_msg->cm_fields['M'], endary);
+ ptr = bmstrcasestr(history_msg->cm_fields['M'], prefixed_boundary);
if (ptr != NULL) {
+ char *the_rest_of_it = strdup(ptr);
+ char uuid[32];
+ char memo[512];
+ char encoded_memo[768];
+ generate_uuid(uuid);
+ snprintf(memo, sizeof memo, "%s|%ld|%s|%s",
+ uuid,
+ time(NULL),
+ CCC->user.fullname,
+ config.c_nodename
+ /* no longer logging CCC->cs_inet_email */
+ );
+ CtdlEncodeBase64(encoded_memo, memo, strlen(memo), 0);
sprintf(ptr, "--%s\n"
"Content-type: text/plain\n"
- "From: %s <%s>\n"
+ "Content-Disposition: inline; filename=\"%s\"\n"
+ "Content-Transfer-Encoding: 8bit\n"
"\n"
"%s\n"
- "--%s--\n"
+ "%s"
,
boundary,
- CCC->user.fullname,
- CCC->cs_inet_email,
+ encoded_memo,
diffbuf,
- boundary
+ the_rest_of_it
);
+ free(the_rest_of_it);
}
history_msg->cm_fields['T'] = realloc(history_msg->cm_fields['T'], 32);
}
+/*
+ * 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 = locate_message_by_euid(history_page_name, &CC->room);
+ if (msgnum > 0L) {
+ msg = CtdlFetchMessage(msgnum, 1);
+ }
+ else {
+ msg = NULL;
+ }
+
+ if ((msg != NULL) && (msg->cm_fields['M'] == NULL)) {
+ CtdlFreeMessage(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(msg->cm_fields['M'], NULL, *wiki_history_callback, NULL, NULL, NULL, 0);
+ cprintf("000\n");
+
+ CtdlFreeMessage(msg);
+ return;
+}
+
+
+
+/*
+ * Fetch a specific revision of a wiki page
+ */
+void wiki_rev(char *pagename, char *rev)
+{
+ 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 = locate_message_by_euid(history_page_name, &CC->room);
+ if (msgnum > 0L) {
+ msg = CtdlFetchMessage(msgnum, 1);
+ }
+ else {
+ msg = NULL;
+ }
+
+ if ((msg != NULL) && (msg->cm_fields['M'] == NULL)) {
+ CtdlFreeMessage(msg);
+ msg = NULL;
+ }
+
+ if (msg == NULL) {
+ cprintf("%d Revision history for '%s' was not found.\n", ERROR+MESSAGE_NOT_FOUND, pagename);
+ return;
+ }
+
+
+/*
+ FIXME do something here
+ mime_parser(msg->cm_fields['M'], NULL, *wiki_history_callback, NULL, NULL, NULL, 0);
+ */
+
+ CtdlFreeMessage(msg);
+ cprintf("%d FIXME not finished yet, check the log to find out wtf\n", ERROR);
+ return;
+}
+
+
+
+/*
+ * commands related to wiki management
+ */
+void cmd_wiki(char *argbuf) {
+ char subcmd[32];
+ char pagename[256];
+ char rev[128];
+
+ 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);
+ wiki_rev(pagename, rev);
+ 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 */