/*
- * This module handles shared rooms, inter-Citadel mail, and outbound
- * mailing list processing.
+ * This module handles loading, saving, and parsing of room network configurations.
*
- * Copyright (c) 2000-2012 by the citadel.org team
+ * Copyright (c) 2000-2017 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 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.
+ * 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 <stdio.h>
+#include <sys/types.h>
+#include <dirent.h>
#ifdef HAVE_SYSCALL_H
# include <syscall.h>
# include <sys/syscall.h>
# endif
#endif
+#include <dirent.h>
+#include <assert.h>
#include <libcitadel.h>
#include "include/ctdl_module.h"
+#include "serv_extensions.h"
+#include "config.h"
+
+void vFreeRoomNetworkStruct(void *vOneRoomNetCfg);
+void FreeRoomNetworkStructContent(OneRoomNetCfg *OneRNCfg);
+
HashList *CfgTypeHash = NULL;
+/*-----------------------------------------------------------------------------*
+ * Per room network configs *
+ *-----------------------------------------------------------------------------*/
-void RegisterRoomCfgType(const char* Name, long len, RoomNetCfg eCfg, CfgLineParser p, int uniq, CfgLineSerializer s, CfgLineDeAllocator d)
+void RegisterRoomCfgType(const char* Name, long len, RoomNetCfg eCfg, CfgLineParser p, int uniq, int nSegments, CfgLineSerializer s, CfgLineDeAllocator d)
{
CfgLineType *pCfg;
pCfg = (CfgLineType*) malloc(sizeof(CfgLineType));
pCfg->Parser = p;
pCfg->Serializer = s;
+ pCfg->DeAllocator = d;
pCfg->C = eCfg;
pCfg->Str.Key = Name;
pCfg->Str.len = len;
pCfg->IsSingleLine = uniq;
-
- if (CfgTypeHash == NULL)
+ pCfg->nSegments = nSegments;
+ if (CfgTypeHash == NULL) {
CfgTypeHash = NewHash(1, NULL);
+ }
Put(CfgTypeHash, Name, len, pCfg, NULL);
}
}
}
+
const CfgLineType *GetCfgTypeByEnum(RoomNetCfg eCfg, HashPos *It)
{
const char *Key;
}
return NULL;
}
-void ParseGeneric(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
+
+
+void ParseGeneric(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCfg)
{
RoomNetCfgLine *nptr;
+ int i;
nptr = (RoomNetCfgLine *)
malloc(sizeof(RoomNetCfgLine));
- nptr->next = OneRNCFG->NetConfigs[ThisOne->C];
- nptr->Value = NewStrBufPlain(LinePos, StrLength(Line) - ( LinePos - ChrPtr(Line)) );
- OneRNCFG->NetConfigs[ThisOne->C] = nptr;
+ nptr->next = OneRNCfg->NetConfigs[ThisOne->C];
+ nptr->Value = malloc(sizeof(StrBuf*) * ThisOne->nSegments);
+ nptr->nValues = 0;
+ memset(nptr->Value, 0, sizeof(StrBuf*) * ThisOne->nSegments);
+ if (ThisOne->nSegments == 1)
+ {
+ nptr->Value[0] = NewStrBufPlain(LinePos, StrLength(Line) - ( LinePos - ChrPtr(Line)) );
+ nptr->nValues = 1;
+ }
+ else for (i = 0; i < ThisOne->nSegments; i++)
+ {
+ nptr->nValues++;
+ nptr->Value[i] = NewStrBufPlain(NULL, StrLength(Line) - ( LinePos - ChrPtr(Line)) );
+ StrBufExtract_NextToken(nptr->Value[i], Line, &LinePos, '|');
+ }
+
+ OneRNCfg->NetConfigs[ThisOne->C] = nptr;
}
-void SerializeGeneric(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *OneRNCFG, RoomNetCfgLine *data)
+
+void SerializeGeneric(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *OneRNCfg, RoomNetCfgLine *data)
{
+ int i;
+
StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
- StrBufAppendBuf(OutputBuffer, data->Value, 0);
+ StrBufAppendBufPlain(OutputBuffer, HKEY("|"), 0);
+ for (i = 0; i < ThisOne->nSegments; i++)
+ {
+ StrBufAppendBuf(OutputBuffer, data->Value[i], 0);
+ if (i + 1 < ThisOne->nSegments)
+ StrBufAppendBufPlain(OutputBuffer, HKEY("|"), 0);
+ }
StrBufAppendBufPlain(OutputBuffer, HKEY("\n"), 0);
}
+
void DeleteGenericCfgLine(const CfgLineType *ThisOne, RoomNetCfgLine **data)
{
- FreeStrBuf(&(*data)->Value);
+ int i;
+
+ if (*data == NULL)
+ return;
+
+ for (i = 0; i < (*data)->nValues; i++)
+ {
+ FreeStrBuf(&(*data)->Value[i]);
+ }
+ free ((*data)->Value);
free(*data);
*data = NULL;
}
-int read_spoolcontrol_file(OneRoomNetCfg **pOneRNCFG, char *filename)
-{
- int fd;
- const char *ErrStr = NULL;
- const char *Pos;
- const CfgLineType *pCfg;
- StrBuf *Line;
- StrBuf *InStr;
- OneRoomNetCfg *OneRNCFG;
-
- fd = open(filename, O_NONBLOCK|O_RDONLY);
- if (fd == -1) {
- *pOneRNCFG = NULL;
- return 0;
- }
- OneRNCFG = malloc(sizeof(OneRoomNetCfg));
- memset(OneRNCFG, 0, sizeof(OneRoomNetCfg));
- *pOneRNCFG = OneRNCFG;
-
- while (StrBufTCP_read_line(Line, &fd, 0, &ErrStr) >= 0) {
- if (StrLength(Line) == 0)
- continue;
- Pos = NULL;
- InStr = NewStrBufPlain(NULL, StrLength(Line));
- StrBufExtract_NextToken(InStr, Line, &Pos, '|');
-
- pCfg = GetCfgTypeByStr(SKEY(InStr));
- if (pCfg != NULL)
- {
- pCfg->Parser(pCfg, Line, Pos, OneRNCFG);
- }
- else
- {
- if (OneRNCFG->misc == NULL)
+
+
+RoomNetCfgLine *DuplicateOneGenericCfgLine(const RoomNetCfgLine *data)
+{
+ int i;
+ RoomNetCfgLine *NewData;
+
+ NewData = (RoomNetCfgLine*)malloc(sizeof(RoomNetCfgLine));
+ memset(NewData, 0, sizeof(RoomNetCfgLine));
+ NewData->Value = (StrBuf **)malloc(sizeof(StrBuf*) * data->nValues);
+ memset(NewData->Value, 0, sizeof(StrBuf*) * data->nValues);
+
+ for (i = 0; i < data->nValues; i++)
+ {
+ NewData->Value[i] = NewStrBufDup(data->Value[i]);
+ }
+ NewData->nValues = data->nValues;
+ return NewData;
+}
+
+
+/*
+ * Create a config key for a room's netconfig entry
+ */
+void netcfg_keyname(char *keybuf, long roomnum)
+{
+ if (!keybuf) return;
+ sprintf(keybuf, "c_netconfig_%010ld", roomnum);
+}
+
+
+/*
+ * Given a room number and a textual netconfig, convert to base64 and write to the configdb
+ */
+void write_netconfig_to_configdb(long roomnum, const char *raw_netconfig)
+{
+ char keyname[25];
+ char *enc;
+ int enc_len;
+ int len;
+
+ len = strlen(raw_netconfig);
+ netcfg_keyname(keyname, roomnum);
+ enc = malloc(len * 2);
+
+ if (enc) {
+ enc_len = CtdlEncodeBase64(enc, raw_netconfig, len, 0);
+ if ((enc_len > 1) && (enc[enc_len-2] == 13)) enc[enc_len-2] = 0;
+ if ((enc_len > 0) && (enc[enc_len-1] == 10)) enc[enc_len-1] = 0;
+ enc[enc_len] = 0;
+ syslog(LOG_DEBUG, "netconfig: writing key '%s' (length=%d)", keyname, enc_len);
+ CtdlSetConfigStr(keyname, enc);
+ free(enc);
+ }
+}
+
+
+/*
+ * Given a room number, attempt to load the netconfig configdb entry for that room.
+ * If it returns NULL, there is no netconfig.
+ * Otherwise the caller owns the returned memory and is responsible for freeing it.
+ */
+char *LoadRoomNetConfigFile(long roomnum)
+{
+ char keyname[25];
+ char *encoded_netconfig = NULL;
+ char *decoded_netconfig = NULL;
+
+ netcfg_keyname(keyname, roomnum);
+ encoded_netconfig = CtdlGetConfigStr(keyname);
+ if (!encoded_netconfig) return NULL;
+
+ decoded_netconfig = malloc(strlen(encoded_netconfig)); // yeah, way bigger than it needs to be, but safe
+ CtdlDecodeBase64(decoded_netconfig, encoded_netconfig, strlen(encoded_netconfig));
+ return decoded_netconfig;
+}
+
+
+/*
+ * Deserialize a netconfig , allocate and return structured data
+ */
+OneRoomNetCfg *ParseRoomNetConfigFile(char *serialized_data)
+{
+ const char *Pos = NULL;
+ const CfgLineType *pCfg = NULL;
+ StrBuf *Line = NULL;
+ StrBuf *InStr = NULL;
+ StrBuf *Cfg = NULL;
+ OneRoomNetCfg *OneRNCfg = NULL;
+ int num_lines = 0;
+ int i = 0;
+
+ OneRNCfg = malloc(sizeof(OneRoomNetCfg));
+ memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
+
+ Line = NewStrBuf();
+ InStr = NewStrBuf();
+ Cfg = NewStrBufPlain(serialized_data, -1);
+ num_lines = num_tokens(ChrPtr(Cfg), '\n');
+
+ for (i=0; i<num_lines; ++i) {
+ StrBufExtract_token(Line, Cfg, i, '\n');
+ if (StrLength(Line) > 0) {
+ Pos = NULL;
+ StrBufExtract_NextToken(InStr, Line, &Pos, '|');
+
+ pCfg = GetCfgTypeByStr(SKEY(InStr));
+ if (pCfg != NULL)
{
- OneRNCFG->misc = NewStrBufDup(Line);
+ pCfg->Parser(pCfg, Line, Pos, OneRNCfg);
}
else
{
- if(StrLength(OneRNCFG->misc) > 0)
- StrBufAppendBufPlain(OneRNCFG->misc, HKEY("\n"), 0);
- StrBufAppendBuf(OneRNCFG->misc, Line, 0);
+ if (OneRNCfg->misc == NULL)
+ {
+ OneRNCfg->misc = NewStrBufDup(Line);
+ }
+ else
+ {
+ if (StrLength(OneRNCfg->misc) > 0) {
+ StrBufAppendBufPlain(OneRNCfg->misc, HKEY("\n"), 0);
+ }
+ StrBufAppendBuf(OneRNCfg->misc, Line, 0);
+ }
}
}
}
- if (fd > 0)
- close(fd);
FreeStrBuf(&InStr);
FreeStrBuf(&Line);
- return 1;
+ FreeStrBuf(&Cfg);
+ return OneRNCfg;
}
-int save_spoolcontrol_file(OneRoomNetCfg *OneRNCFG, char *filename)
+
+void SaveRoomNetConfigFile(OneRoomNetCfg *OneRNCfg, long roomnum)
{
RoomNetCfg eCfg;
- StrBuf *Cfg;
- char tempfilename[PATH_MAX];
- int TmpFD;
- long len;
- time_t unixtime;
- struct timeval tv;
- long reltid; /* if we don't have SYS_gettid, use "random" value */
- StrBuf *OutBuffer;
- int rc;
+ StrBuf *Cfg = NULL;
+ StrBuf *OutBuffer = NULL;
HashPos *CfgIt;
- len = strlen(filename);
- memcpy(tempfilename, filename, len + 1);
-
-#if defined(HAVE_SYONERNCFGALL_H) && defined (SYS_gettid)
- reltid = syOneRNCFGall(SYS_gettid);
-#endif
- gettimeofday(&tv, NULL);
- /* Promote to time_t; types differ on some OSes (like darwin) */
- unixtime = tv.tv_sec;
-
- sprintf(tempfilename + len, ".%ld-%ld", reltid, unixtime);
- errno = 0;
- TmpFD = open(tempfilename, O_CREAT|O_EXCL|O_RDWR, S_IRUSR|S_IWUSR);
Cfg = NewStrBuf();
- if ((TmpFD < 0) || (errno != 0)) {
- syslog(LOG_CRIT, "ERROR: cannot open %s: %s\n",
- filename, strerror(errno));
- unlink(tempfilename);
- return 0;
- }
- else {
- CfgIt = GetNewHashPos(CfgTypeHash, 1);
- fchown(TmpFD, config.c_ctdluid, 0);
- for (eCfg = subpending; eCfg < maxRoomNetCfg; eCfg ++)
+ OutBuffer = NewStrBuf();
+ CfgIt = GetNewHashPos(CfgTypeHash, 1);
+ for (eCfg = subpending; eCfg < maxRoomNetCfg; eCfg ++)
+ {
+ const CfgLineType *pCfg;
+ pCfg = GetCfgTypeByEnum(eCfg, CfgIt);
+ if (pCfg)
{
- const CfgLineType *pCfg;
- pCfg = GetCfgTypeByEnum(eCfg, CfgIt);
if (pCfg->IsSingleLine)
{
- pCfg->Serializer(pCfg, OutBuffer, OneRNCFG, NULL);
+ pCfg->Serializer(pCfg, OutBuffer, OneRNCfg, NULL);
}
else
{
- RoomNetCfgLine *pName = OneRNCFG->NetConfigs[pCfg->C];
+ RoomNetCfgLine *pName = OneRNCfg->NetConfigs[pCfg->C];
while (pName != NULL)
{
- pCfg->Serializer(pCfg, OutBuffer, OneRNCFG, pName);
+ pCfg->Serializer(pCfg, OutBuffer, OneRNCfg, pName);
pName = pName->next;
}
-
-
}
-
}
- DeleteHashPos(&CfgIt);
-
- if (OneRNCFG->misc != NULL) {
- StrBufAppendBuf(OutBuffer, OneRNCFG->misc, 0);
- }
+ }
+ DeleteHashPos(&CfgIt);
- rc = write(TmpFD, ChrPtr(OutBuffer), StrLength(OutBuffer));
- if ((rc >=0 ) && (rc == StrLength(Cfg)))
- {
- close(TmpFD);
- rename(tempfilename, filename);
- rc = 1;
- }
- else {
- syslog(LOG_EMERG,
- "unable to write %s; [%s]; not enough space on the disk?\n",
- tempfilename,
- strerror(errno));
- close(TmpFD);
- unlink(tempfilename);
- rc = 0;
- }
- FreeStrBuf(&OutBuffer);
-
+ if (OneRNCfg->misc != NULL) {
+ StrBufAppendBuf(OutBuffer, OneRNCfg->misc, 0);
}
- return rc;
+
+ write_netconfig_to_configdb(roomnum, ChrPtr(OutBuffer));
+
+ FreeStrBuf(&OutBuffer);
+ FreeStrBuf(&Cfg);
}
+void AddRoomCfgLine(OneRoomNetCfg *OneRNCfg, struct ctdlroom *qrbuf, RoomNetCfg LineType, RoomNetCfgLine *Line)
+{
+ RoomNetCfgLine **pLine;
+
+ if (OneRNCfg == NULL)
+ {
+ OneRNCfg = (OneRoomNetCfg*) malloc(sizeof(OneRoomNetCfg));
+ memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
+ }
+ pLine = &OneRNCfg->NetConfigs[LineType];
+
+ while(*pLine != NULL) pLine = &((*pLine)->next);
+ *pLine = Line;
+}
+
-void free_spoolcontrol_struct(OneRoomNetCfg **pOneRNCFG)
+void FreeRoomNetworkStructContent(OneRoomNetCfg *OneRNCfg)
{
RoomNetCfg eCfg;
HashPos *CfgIt;
- OneRoomNetCfg *OneRNCFG;
- OneRNCFG = *pOneRNCFG;
CfgIt = GetNewHashPos(CfgTypeHash, 1);
for (eCfg = subpending; eCfg < maxRoomNetCfg; eCfg ++)
{
RoomNetCfgLine *pNext, *pName;
pCfg = GetCfgTypeByEnum(eCfg, CfgIt);
- pName= OneRNCFG->NetConfigs[pCfg->C];
+ pName= OneRNCfg->NetConfigs[eCfg];
while (pName != NULL)
{
pNext = pName->next;
- pCfg->DeAllocator(pCfg, &pName);
+ if (pCfg != NULL)
+ {
+ pCfg->DeAllocator(pCfg, &pName);
+ }
+ else
+ {
+ DeleteGenericCfgLine(NULL, &pName);
+ }
pName = pNext;
}
}
DeleteHashPos(&CfgIt);
- FreeStrBuf(&OneRNCFG->Sender);
- FreeStrBuf(&OneRNCFG->RoomInfo);
- FreeStrBuf(&OneRNCFG->misc);
- free(OneRNCFG);
- *pOneRNCFG=NULL;
+ FreeStrBuf(&OneRNCfg->Sender);
+ FreeStrBuf(&OneRNCfg->RoomInfo);
+ FreeStrBuf(&OneRNCfg->misc);
+ memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
+}
+
+
+void vFreeRoomNetworkStruct(void *vOneRoomNetCfg)
+{
+ OneRoomNetCfg *OneRNCfg;
+ OneRNCfg = (OneRoomNetCfg*)vOneRoomNetCfg;
+ FreeRoomNetworkStructContent(OneRNCfg);
+ free(OneRNCfg);
+}
+
+
+void FreeRoomNetworkStruct(OneRoomNetCfg **pOneRNCfg)
+{
+ vFreeRoomNetworkStruct(*pOneRNCfg);
+ *pOneRNCfg=NULL;
+}
+
+
+/*
+ * Fetch the netconfig entry for a room, parse it, and return the data.
+ * Caller owns the returned memory and MUST free it using FreeRoomNetworkStruct()
+ */
+OneRoomNetCfg *CtdlGetNetCfgForRoom(long roomnum)
+{
+ OneRoomNetCfg *OneRNCfg = NULL;
+ char *serialized_config = NULL;
+
+ serialized_config = LoadRoomNetConfigFile(roomnum);
+ if (!serialized_config) return NULL;
+
+ OneRNCfg = ParseRoomNetConfigFile(serialized_config);
+ free(serialized_config);
+ return OneRNCfg;
+}
+
+
+/*-----------------------------------------------------------------------------*
+ * Per room network configs : exchange with client *
+ *-----------------------------------------------------------------------------*/
+
+void cmd_gnet(char *argbuf)
+{
+ if ( (CC->room.QRflags & QR_MAILBOX) && (CC->user.usernum == atol(CC->room.QRname)) ) {
+ /* users can edit the netconfigs for their own mailbox rooms */
+ }
+ else if (CtdlAccessCheck(ac_room_aide)) return;
+
+ cprintf("%d Network settings for room #%ld <%s>\n", LISTING_FOLLOWS, CC->room.QRnumber, CC->room.QRname);
+
+ char *c = LoadRoomNetConfigFile(CC->room.QRnumber);
+ if (c) {
+ int len = strlen(c);
+ client_write(c, len); // Can't use cprintf() here, it has a limit of 1024 bytes
+ if (c[len] != '\n') {
+ client_write(HKEY("\n"));
+ }
+ free(c);
+ }
+ cprintf("000\n");
+}
+
+
+void cmd_snet(char *argbuf)
+{
+ struct CitContext *CCC = CC;
+ StrBuf *Line = NULL;
+ StrBuf *TheConfig = NULL;
+ int rc;
+
+ unbuffer_output();
+ Line = NewStrBuf();
+ TheConfig = NewStrBuf();
+ cprintf("%d send new netconfig now\n", SEND_LISTING);
+
+ while (rc = CtdlClientGetLine(Line), (rc >= 0))
+ {
+ if ((rc == 3) && (strcmp(ChrPtr(Line), "000") == 0))
+ break;
+
+ StrBufAppendBuf(TheConfig, Line, 0);
+ StrBufAppendBufPlain(TheConfig, HKEY("\n"), 0);
+ }
+ FreeStrBuf(&Line);
+
+ write_netconfig_to_configdb(CCC->room.QRnumber, ChrPtr(TheConfig));
+ FreeStrBuf(&TheConfig);
+}
+
+
+/*-----------------------------------------------------------------------------*
+ * Per node network configs *
+ *-----------------------------------------------------------------------------*/
+void DeleteCtdlNodeConf(void *vNode)
+{
+ CtdlNodeConf *Node = (CtdlNodeConf*) vNode;
+ FreeStrBuf(&Node->NodeName);
+ FreeStrBuf(&Node->Secret);
+ FreeStrBuf(&Node->Host);
+ FreeStrBuf(&Node->Port);
+ free(Node);
+}
+
+
+CtdlNodeConf *NewNode(StrBuf *SerializedNode)
+{
+ const char *Pos = NULL;
+ CtdlNodeConf *Node;
+
+ /* we need at least 4 pipes and some other text so its invalid. */
+ if (StrLength(SerializedNode) < 8)
+ return NULL;
+ Node = (CtdlNodeConf *) malloc(sizeof(CtdlNodeConf));
+
+ Node->DeleteMe = 0;
+
+ Node->NodeName=NewStrBuf();
+ StrBufExtract_NextToken(Node->NodeName, SerializedNode, &Pos, '|');
+
+ Node->Secret=NewStrBuf();
+ StrBufExtract_NextToken(Node->Secret, SerializedNode, &Pos, '|');
+
+ Node->Host=NewStrBuf();
+ StrBufExtract_NextToken(Node->Host, SerializedNode, &Pos, '|');
+
+ Node->Port=NewStrBuf();
+ StrBufExtract_NextToken(Node->Port, SerializedNode, &Pos, '|');
+ return Node;
+}
+
+
+/*
+ * Load or refresh the Citadel network (IGnet) configuration for this node.
+ */
+HashList* CtdlLoadIgNetCfg(void)
+{
+ const char *LinePos;
+ char *Cfg;
+ StrBuf *Buf;
+ StrBuf *LineBuf;
+ HashList *Hash;
+ CtdlNodeConf *Node;
+
+ Cfg = CtdlGetSysConfig(IGNETCFG);
+ if ((Cfg == NULL) || IsEmptyStr(Cfg)) {
+ if (Cfg != NULL)
+ free(Cfg);
+ return NULL;
+ }
+
+ Hash = NewHash(1, NULL);
+ Buf = NewStrBufPlain(Cfg, -1);
+ free(Cfg);
+ LineBuf = NewStrBufPlain(NULL, StrLength(Buf));
+ LinePos = NULL;
+ do
+ {
+ StrBufSipLine(LineBuf, Buf, &LinePos);
+ if (StrLength(LineBuf) != 0) {
+ Node = NewNode(LineBuf);
+ if (Node != NULL) {
+ Put(Hash, SKEY(Node->NodeName), Node, DeleteCtdlNodeConf);
+ }
+ }
+ } while (LinePos != StrBufNOTNULL);
+ FreeStrBuf(&Buf);
+ FreeStrBuf(&LineBuf);
+ return Hash;
+}
+
+
+int is_recipient(OneRoomNetCfg *RNCfg, const char *Name)
+{
+ const RoomNetCfg RecipientCfgs[] = {
+ listrecp,
+ digestrecp,
+ participate,
+ maxRoomNetCfg
+ };
+ int i;
+ RoomNetCfgLine *nptr;
+ size_t len;
+
+ len = strlen(Name);
+ i = 0;
+ while (RecipientCfgs[i] != maxRoomNetCfg)
+ {
+ nptr = RNCfg->NetConfigs[RecipientCfgs[i]];
+
+ while (nptr != NULL)
+ {
+ if ((StrLength(nptr->Value[0]) == len) &&
+ (!strcmp(Name, ChrPtr(nptr->Value[0]))))
+ {
+ return 1;
+ }
+ nptr = nptr->next;
+ }
+ i++;
+ }
+ return 0;
+}
+
+
+int CtdlNetconfigCheckRoomaccess(char *errmsgbuf, size_t n, const char* RemoteIdentifier)
+{
+ OneRoomNetCfg *RNCfg;
+ int found;
+
+ if (RemoteIdentifier == NULL)
+ {
+ snprintf(errmsgbuf, n, "Need sender to permit access.");
+ return (ERROR + USERNAME_REQUIRED);
+ }
+
+ begin_critical_section(S_NETCONFIGS);
+ RNCfg = CtdlGetNetCfgForRoom (CC->room.QRnumber);
+ if (RNCfg == NULL)
+ {
+ end_critical_section(S_NETCONFIGS);
+ snprintf(errmsgbuf, n,
+ "This mailing list only accepts posts from subscribers.");
+ return (ERROR + NO_SUCH_USER);
+ }
+ found = is_recipient (RNCfg, RemoteIdentifier);
+ FreeRoomNetworkStruct(&RNCfg);
+ end_critical_section(S_NETCONFIGS);
+
+ if (found) {
+ return (0);
+ }
+ else {
+ snprintf(errmsgbuf, n,
+ "This mailing list only accepts posts from subscribers.");
+ return (ERROR + NO_SUCH_USER);
+ }
+}
+
+
+/*
+ * cmd_netp() - authenticate to the server as another Citadel node polling
+ * for network traffic
+ */
+void cmd_netp(char *cmdbuf)
+{
+ struct CitContext *CCC = CC;
+ HashList *working_ignetcfg;
+ char *node;
+ StrBuf *NodeStr;
+ long nodelen;
+ int v;
+
+ const StrBuf *secret = NULL;
+ const StrBuf *nexthop = NULL;
+ char err_buf[SIZ] = "";
+
+ /* Authenticate */
+ node = CCC->curr_user;
+ nodelen = extract_token(CCC->curr_user, cmdbuf, 0, '|', sizeof CCC->curr_user);
+ NodeStr = NewStrBufPlain(node, nodelen);
+ /* load the IGnet Configuration to check node validity */
+ working_ignetcfg = CtdlLoadIgNetCfg();
+ v = CtdlIsValidNode(&nexthop, &secret, NodeStr, working_ignetcfg, NULL);
+ if (v != 0) {
+ snprintf(err_buf, sizeof err_buf,
+ "An unknown Citadel server called \"%s\" attempted to connect from %s [%s].\n",
+ node, CCC->cs_host, CCC->cs_addr
+ );
+ syslog(LOG_WARNING, "netconfig: %s", err_buf);
+ cprintf("%d authentication failed\n", ERROR + PASSWORD_REQUIRED);
+ CtdlAideMessage(err_buf, "IGNet Networking");
+ DeleteHash(&working_ignetcfg);
+ FreeStrBuf(&NodeStr);
+ return;
+ }
+
+ extract_token(CCC->user.password, cmdbuf, 1, '|', sizeof CCC->user.password);
+ if (strcasecmp(CCC->user.password, ChrPtr(secret))) {
+ snprintf(err_buf, sizeof err_buf,
+ "A Citadel server at %s [%s] failed to authenticate as network node \"%s\".\n",
+ CCC->cs_host, CCC->cs_addr, node
+ );
+ syslog(LOG_WARNING, "netconfig: %s", err_buf);
+ cprintf("%d authentication failed\n", ERROR + PASSWORD_REQUIRED);
+
+ CtdlAideMessage(err_buf, "IGNet Networking");
+ DeleteHash(&working_ignetcfg);
+ FreeStrBuf(&NodeStr);
+ return;
+ }
+
+ if (CtdlNetworkTalkingTo(node, nodelen, NTT_CHECK)) {
+ syslog(LOG_WARNING, "netconfig: duplicate session for network node <%s>", node);
+ cprintf("%d Already talking to %s right now\n", ERROR + RESOURCE_BUSY, node);
+ DeleteHash(&working_ignetcfg);
+ FreeStrBuf(&NodeStr);
+ return;
+ }
+ nodelen = safestrncpy(CCC->net_node, node, sizeof CCC->net_node);
+ CtdlNetworkTalkingTo(CCC->net_node, nodelen, NTT_ADD);
+ syslog(LOG_INFO, "netconfig: network node <%s> logged in from %s [%s]",
+ CCC->net_node, CCC->cs_host, CCC->cs_addr
+ );
+ cprintf("%d authenticated as network node '%s'\n", CIT_OK, CCC->net_node);
+ DeleteHash(&working_ignetcfg);
+ FreeStrBuf(&NodeStr);
+}
+
+
+/*-----------------------------------------------------------------------------*
+ * Network maps: evaluate other nodes *
+ *-----------------------------------------------------------------------------*/
+
+void DeleteNetMap(void *vNetMap)
+{
+ CtdlNetMap *TheNetMap = (CtdlNetMap*) vNetMap;
+ FreeStrBuf(&TheNetMap->NodeName);
+ FreeStrBuf(&TheNetMap->NextHop);
+ free(TheNetMap);
+}
+
+
+CtdlNetMap *NewNetMap(StrBuf *SerializedNetMap)
+{
+ const char *Pos = NULL;
+ CtdlNetMap *NM;
+
+ /* we need at least 3 pipes and some other text so its invalid. */
+ if (StrLength(SerializedNetMap) < 6)
+ return NULL;
+ NM = (CtdlNetMap *) malloc(sizeof(CtdlNetMap));
+
+ NM->NodeName=NewStrBuf();
+ StrBufExtract_NextToken(NM->NodeName, SerializedNetMap, &Pos, '|');
+
+ NM->lastcontact = StrBufExtractNext_long(SerializedNetMap, &Pos, '|');
+
+ NM->NextHop=NewStrBuf();
+ StrBufExtract_NextToken(NM->NextHop, SerializedNetMap, &Pos, '|');
+
+ return NM;
+}
+
+
+HashList* CtdlReadNetworkMap(void)
+{
+ const char *LinePos;
+ char *Cfg;
+ StrBuf *Buf;
+ StrBuf *LineBuf;
+ HashList *Hash;
+ CtdlNetMap *TheNetMap;
+
+ Hash = NewHash(1, NULL);
+ Cfg = CtdlGetSysConfig(IGNETMAP);
+ if ((Cfg == NULL) || IsEmptyStr(Cfg)) {
+ if (Cfg != NULL)
+ free(Cfg);
+ return Hash;
+ }
+
+ Buf = NewStrBufPlain(Cfg, -1);
+ free(Cfg);
+ LineBuf = NewStrBufPlain(NULL, StrLength(Buf));
+ LinePos = NULL;
+ while (StrBufSipLine(Buf, LineBuf, &LinePos))
+ {
+ TheNetMap = NewNetMap(LineBuf);
+ if (TheNetMap != NULL) { /* TODO: is the NodeName Uniq? */
+ Put(Hash, SKEY(TheNetMap->NodeName), TheNetMap, DeleteNetMap);
+ }
+ }
+ FreeStrBuf(&Buf);
+ FreeStrBuf(&LineBuf);
+ return Hash;
+}
+
+
+StrBuf *CtdlSerializeNetworkMap(HashList *Map)
+{
+ void *vMap;
+ const char *key;
+ long len;
+ StrBuf *Ret = NewStrBuf();
+ HashPos *Pos = GetNewHashPos(Map, 0);
+
+ while (GetNextHashPos(Map, Pos, &len, &key, &vMap))
+ {
+ CtdlNetMap *pMap = (CtdlNetMap*) vMap;
+ StrBufAppendBuf(Ret, pMap->NodeName, 0);
+ StrBufAppendBufPlain(Ret, HKEY("|"), 0);
+
+ StrBufAppendPrintf(Ret, "%ld", pMap->lastcontact, 0);
+ StrBufAppendBufPlain(Ret, HKEY("|"), 0);
+
+ StrBufAppendBuf(Ret, pMap->NextHop, 0);
+ StrBufAppendBufPlain(Ret, HKEY("\n"), 0);
+ }
+ DeleteHashPos(&Pos);
+ return Ret;
+}
+
+
+/*
+ * Learn topology from path fields
+ */
+void NetworkLearnTopology(char *node, char *path, HashList *the_netmap, int *netmap_changed)
+{
+ CtdlNetMap *pNM = NULL;
+ void *vptr;
+ char nexthop[256];
+ CtdlNetMap *nmptr;
+
+ if (GetHash(the_netmap, node, strlen(node), &vptr) &&
+ (vptr != NULL))/* TODO: is the NodeName Uniq? */
+ {
+ pNM = (CtdlNetMap*)vptr;
+ extract_token(nexthop, path, 0, '!', sizeof nexthop);
+ if (!strcmp(nexthop, ChrPtr(pNM->NextHop))) {
+ pNM->lastcontact = time(NULL);
+ (*netmap_changed) ++;
+ return;
+ }
+ }
+
+ /* If we got here then it's not in the map, so add it. */
+ nmptr = (CtdlNetMap *) malloc(sizeof (CtdlNetMap));
+ nmptr->NodeName = NewStrBufPlain(node, -1);
+ nmptr->lastcontact = time(NULL);
+ nmptr->NextHop = NewStrBuf ();
+ StrBufExtract_tokenFromStr(nmptr->NextHop, path, strlen(path), 0, '!');
+ /* TODO: is the NodeName Uniq? */
+ Put(the_netmap, SKEY(nmptr->NodeName), nmptr, DeleteNetMap);
+ (*netmap_changed) ++;
}
+
+/*
+ * Check the network map and determine whether the supplied node name is
+ * valid. If it is not a neighbor node, supply the name of a neighbor node
+ * which is the next hop. If it *is* a neighbor node, we also fill in the
+ * shared secret.
+ */
+int CtdlIsValidNode(const StrBuf **nexthop,
+ const StrBuf **secret,
+ StrBuf *node,
+ HashList *IgnetCfg,
+ HashList *the_netmap)
+{
+ void *vNetMap;
+ void *vNodeConf;
+ CtdlNodeConf *TheNode;
+ CtdlNetMap *TheNetMap;
+
+ if (StrLength(node) == 0) {
+ return(-1);
+ }
+
+ /*
+ * First try the neighbor nodes
+ */
+ if (GetCount(IgnetCfg) == 0) {
+ syslog(LOG_INFO, "netconfig: IgnetCfg is empty!");
+ if (nexthop != NULL) {
+ *nexthop = NULL;
+ }
+ return(-1);
+ }
+
+ /* try to find a neigbour with the name 'node' */
+ if (GetHash(IgnetCfg, SKEY(node), &vNodeConf) &&
+ (vNodeConf != NULL))
+ {
+ TheNode = (CtdlNodeConf*)vNodeConf;
+ if (secret != NULL)
+ *secret = TheNode->Secret;
+ return 0; /* yup, it's a direct neighbor */
+ }
+
+ /*
+ * If we get to this point we have to see if we know the next hop
+ *//* TODO: is the NodeName Uniq? */
+ if ((GetCount(the_netmap) > 0) &&
+ (GetHash(the_netmap, SKEY(node), &vNetMap)))
+ {
+ TheNetMap = (CtdlNetMap*)vNetMap;
+ if (nexthop != NULL)
+ *nexthop = TheNetMap->NextHop;
+ return(0);
+ }
+
+ /*
+ * If we get to this point, the supplied node name is bogus.
+ */
+ syslog(LOG_ERR, "netconfig: invalid node name <%s>", ChrPtr(node));
+ return(-1);
+}
+
+
+/*
+ * Convert any legacy configuration files in the "netconfigs" directory
+ */
+void convert_legacy_netcfg_files(void)
+{
+ DIR *dh = NULL;
+ struct dirent *dit = NULL;
+ char filename[PATH_MAX];
+ long roomnum;
+ FILE *fp;
+ long len;
+ char *v;
+
+ dh = opendir(ctdl_netcfg_dir);
+ if (!dh) return;
+
+ syslog(LOG_INFO, "netconfig: legacy netconfig files exist - converting them!");
+
+ while (dit = readdir(dh), dit != NULL) { // yes, we use the non-reentrant version; we're not in threaded mode yet
+ roomnum = atol(dit->d_name);
+ if (roomnum > 0) {
+ snprintf(filename, sizeof filename, "%s/%ld", ctdl_netcfg_dir, roomnum);
+ fp = fopen(filename, "r");
+ if (fp) {
+ fseek(fp, 0L, SEEK_END);
+ len = ftell(fp);
+ if (len > 0) {
+ v = malloc(len);
+ if (v) {
+ rewind(fp);
+ if (fread(v, len, 1, fp)) {
+ write_netconfig_to_configdb(roomnum, v);
+ unlink(filename);
+ }
+ free(v);
+ }
+ }
+ else {
+ unlink(filename); // zero length netconfig, just delete it
+ }
+ fclose(fp);
+ }
+ }
+ }
+
+ closedir(dh);
+ rmdir(ctdl_netcfg_dir);
+}
+
+
+/*
+ * Module entry point
+ */
+CTDL_MODULE_INIT(netconfig)
+{
+ if (!threading)
+ {
+ convert_legacy_netcfg_files();
+ CtdlRegisterProtoHook(cmd_gnet, "GNET", "Get network config");
+ CtdlRegisterProtoHook(cmd_snet, "SNET", "Set network config");
+ CtdlRegisterProtoHook(cmd_netp, "NETP", "Identify as network poller");
+ }
+ return "netconfig";
+}
projects / citadel.git / blobdiff