642 lines
17 KiB
C
642 lines
17 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <sys/file.h>
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#include <time.h>
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#include "jamlib/jam.h"
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char *baseindir = NULL;
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char *baseoutdir = NULL;
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char *config_file;
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char *fido_addr;
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int imhub = 0;
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struct msgarea_t {
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int id;
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int hub;
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char *basedir;
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int *links;
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int link_count;
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};
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struct msg_t {
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int area;
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char from[32];
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char to[32];
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char subject[64];
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uint32_t timedate;
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int oaddr;
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int daddr;
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int type;
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char reply[36];
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} __attribute__ ((packed));
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struct msgarea_t **areas;
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int area_count;
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int mynode = 0;
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int hubnode = 0;
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unsigned long generate_msgid() {
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char buffer[1024];
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time_t unixtime;
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unsigned long msgid;
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unsigned long lastid;
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FILE *fptr;
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snprintf(buffer, 1024, "msgserial");
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unixtime = time(NULL);
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fptr = fopen(buffer, "r+");
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if (fptr) {
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flock(fileno(fptr), LOCK_EX);
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fread(&lastid, sizeof(unsigned long), 1, fptr);
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if (unixtime > lastid) {
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lastid = unixtime;
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} else {
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lastid++;
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}
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rewind(fptr);
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fwrite(&lastid, sizeof(unsigned long), 1, fptr);
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flock(fileno(fptr), LOCK_UN);
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fclose(fptr);
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} else {
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fptr = fopen(buffer, "w");
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if (fptr) {
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lastid = unixtime;
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flock(fileno(fptr), LOCK_EX);
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fwrite(&lastid, sizeof(unsigned long), 1, fptr);
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flock(fileno(fptr), LOCK_UN);
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fclose(fptr);
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} else {
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lastid = unixtime;
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}
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}
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sprintf(buffer, "%lX", lastid);
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return strtoul(&buffer[strlen(buffer) - 8], NULL, 16);
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}
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int copy_file(char *src, char *dest) {
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FILE *src_file;
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FILE *dest_file;
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char c;
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src_file = fopen(src, "rb");
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if (!src_file) {
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return -1;
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}
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dest_file = fopen(dest, "wb");
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if (!dest_file) {
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fclose(src_file);
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return -1;
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}
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while(1) {
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c = fgetc(src_file);
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if (!feof(src_file)) {
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fputc(c, dest_file);
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} else {
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break;
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}
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}
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fclose(src_file);
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fclose(dest_file);
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return 0;
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}
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s_JamBase *open_jam_base(char *path) {
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int ret;
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s_JamBase *jb;
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ret = JAM_OpenMB((char *)path, &jb);
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if (ret != 0) {
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if (ret == JAM_IO_ERROR) {
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free(jb);
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ret = JAM_CreateMB((char *)path, 1, &jb);
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if (ret != 0) {
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free(jb);
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return NULL;
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}
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} else {
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free(jb);
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return NULL;
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}
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}
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return jb;
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}
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size_t trimwhitespace(char *out, size_t len, const char *str) {
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if(len == 0)
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return 0;
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const char *end;
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size_t out_size;
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// Trim leading space
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while(isspace((unsigned char)*str)) str++;
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if(*str == 0) {
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*out = 0;
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return 1;
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}
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// Trim trailing space
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end = str + strlen(str) - 1;
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while(end > str && isspace((unsigned char)*end)) end--;
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end++;
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// Set output size to minimum of trimmed string length and buffer size minus 1
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out_size = (end - str) < len-1 ? (end - str) : len-1;
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// Copy trimmed string and add null terminator
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memcpy(out, str, out_size);
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out[out_size] = 0;
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return out_size;
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}
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int parse_config_file(char *filename) {
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FILE *fptr;
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char buffer[256];
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char bufferw[256];
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char *ptr;
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struct msgarea_t *newarea;
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area_count = 0;
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fptr = fopen(filename, "r");
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if (!fptr) {
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return 0;
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}
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fgets(buffer, 256, fptr);
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while (!feof(fptr)) {
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if (buffer[0] != ';') {
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if (buffer[strlen(buffer) - 1] == '\n'){
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buffer[strlen(buffer) - 1] = '\0';
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if (strncasecmp(buffer, "IMHUB", 5) == 0) {
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trimwhitespace(bufferw, 256, &buffer[6]);
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if (strcasecmp(bufferw, "TRUE") == 0) {
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imhub = 1;
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}
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} else if (strncasecmp(buffer, "UPLINK", 6) == 0) {
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trimwhitespace(bufferw, 256, &buffer[7]);
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hubnode = atoi(bufferw);
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} else if (strncasecmp(buffer, "INDIR", 5) == 0) {
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trimwhitespace(bufferw, 256, &buffer[6]);
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baseindir = strdup(bufferw);
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} else if (strncasecmp(buffer, "OUTDIR", 6) == 0) {
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trimwhitespace(bufferw, 256, &buffer[7]);
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baseoutdir = strdup(bufferw);
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} else if (strncasecmp(buffer, "MYNODE", 6) == 0) {
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trimwhitespace(bufferw, 256, &buffer[7]);
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mynode = atoi(bufferw);
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} else if (strncasecmp(buffer, "MSGAREA", 7) == 0) {
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newarea = NULL;
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ptr = strtok(&buffer[8], ",");
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if (ptr != NULL) {
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newarea = (struct msgarea_t *)malloc(sizeof(struct msgarea_t));
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trimwhitespace(bufferw, 256, ptr);
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newarea->id = atoi(bufferw);
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newarea->link_count = 0;
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ptr = strtok(NULL, ",");
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if (ptr != NULL) {
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trimwhitespace(bufferw, 256, ptr);
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newarea->hub = atoi(bufferw);
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ptr = strtok(NULL, ",");
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if (ptr != NULL) {
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trimwhitespace(bufferw, 256, ptr);
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newarea->basedir = strdup(bufferw);
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ptr = strtok(NULL, ",");
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while (ptr != NULL) {
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trimwhitespace(bufferw, 256, ptr);
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if (newarea->link_count == 0) {
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newarea->links = (int *)malloc(sizeof(int));
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} else {
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newarea->links = (int *)realloc(newarea->links, sizeof(int) * (newarea->link_count + 1));
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}
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newarea->links[newarea->link_count] = atoi(bufferw);
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newarea->link_count++;
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ptr = strtok(NULL, ",");
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}
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}
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}
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}
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if (newarea != NULL) {
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if (area_count == 0) {
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areas = (struct msgarea_t **)malloc(sizeof(struct msgarea_t *));
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} else {
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areas = (struct msgarea_t **)realloc(areas, sizeof(struct msgarea_t *) * (area_count + 1));
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}
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areas[area_count] = newarea;
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area_count++;
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}
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}
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} else {
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fclose(fptr);
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return 0;
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}
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}
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fgets(buffer, 256, fptr);
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}
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fclose(fptr);
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return 1;
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}
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int isdupe(struct msg_t *msg, char *uuid) {
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int areaid;
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int i;
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int z;
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char buffer[PATH_MAX];
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FILE *fptr;
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for (i=0;i<area_count;i++) {
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if (msg->area == areas[i]->id) {
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areaid = i;
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break;
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}
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}
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snprintf(buffer, PATH_MAX, "%s.msgids", areas[areaid]->basedir);
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fptr = fopen(buffer, "r");
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if (!fptr) {
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return 0;
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}
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fgets(buffer, 1024, fptr);
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while (!feof(fptr)) {
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if (strncasecmp(buffer, uuid, 36) == 0) {
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fclose(fptr);
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return 1;
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}
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fgets(buffer, 1024, fptr);
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}
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fclose(fptr);
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return 0;
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}
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void update_config_file_area(int areaid) {
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char backup[PATH_MAX];
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char buffer[256];
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char bufferc[256];
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char bufferw[256];
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FILE *fptr1;
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FILE *fptr2;
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char *ptr;
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int id;
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int i;
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snprintf(backup, PATH_MAX, "%s.bak", config_file);
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fptr1 = fopen(config_file, "r");
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fptr2 = fopen(backup, "w");
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fgets(buffer, 256, fptr1);
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while (!feof(fptr1)) {
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if (strncasecmp(buffer, "MSGAREA", 7) == 0) {
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strcpy(bufferc, buffer);
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ptr = strtok(&bufferc[8], ",");
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if (ptr != NULL) {
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trimwhitespace(bufferw, 256, ptr);
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id = atoi(bufferw);
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if (id == areas[areaid]->id) {
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fprintf(fptr2, "MSGAREA %d, %d, %s", areas[areaid]->id, areas[areaid]->hub, areas[areaid]->basedir);
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for (i=0;i<areas[areaid]->link_count;i++) {
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fprintf(fptr2, ", %d", areas[areaid]->links[i]);
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}
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fprintf(fptr2, "\n");
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} else {
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fputs(buffer, fptr2);
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}
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}
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} else {
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fputs(buffer, fptr2);
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}
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fgets(buffer, 256, fptr1);
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}
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fclose(fptr1);
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fclose(fptr2);
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unlink(config_file);
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rename(backup, config_file);
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}
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int import(char *filename) {
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FILE *fptr;
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char buffer[PATH_MAX];
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char buffer2[PATH_MAX];
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char uuid[37];
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struct msg_t msg;
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int ret;
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int areaid;
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struct stat st;
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int z;
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int i;
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int j;
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char *body;
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s_JamBase *jb;
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s_JamBaseHeader jbh;
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s_JamMsgHeader jmh;
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s_JamSubPacket* jsp;
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s_JamSubfield jsf;
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snprintf(buffer, PATH_MAX, "%s/%s", baseindir, filename);
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strncpy(uuid, strchr(filename, '-') + 1, 36);
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uuid[36] = '\0';
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if (stat(buffer, &st) != 0) {
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return 0;
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}
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fptr = fopen(buffer, "rb");
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if (!fptr) {
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return 0;
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}
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fread(&msg, sizeof(struct msg_t), 1, fptr);
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body = malloc(st.st_size - sizeof(struct msg_t) + 1 + strlen(fido_addr));
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memset(body, 0, st.st_size - sizeof(struct msg_t) + 1 + strlen(fido_addr));
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fread(body, st.st_size - sizeof(struct msg_t), 1, fptr);
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fclose(fptr);
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if (msg.daddr != mynode) {
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if (imhub) {
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snprintf(buffer2, PATH_MAX, "%s/%d/%s", baseoutdir, msg.daddr, filename);
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copy_file(buffer, buffer2);
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}
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return 1;
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} else {
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for (i=0;i<area_count;i++) {
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if (msg.area == areas[i]->id) {
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areaid = i;
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break;
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}
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}
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if (areas[areaid]->hub == mynode) {
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if (msg.type == 1) {
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if (strncasecmp(body, "ADD", 3) == 0) {
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for (i=0;i<areas[areaid]->link_count;i++) {
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if (areas[areaid]->links[i] == msg.oaddr) {
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// already subscribed
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return 1;
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}
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}
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if (areas[areaid]->link_count == 0) {
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areas[areaid]->links = (int *)malloc(sizeof(int));
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} else {
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areas[areaid]->links = (int *)realloc(areas[areaid]->links, sizeof(int) * (areas[areaid]->link_count + 1));
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}
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areas[areaid]->links[areas[areaid]->link_count] = msg.oaddr;
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areas[areaid]->link_count++;
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//
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update_config_file_area(areaid);
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} else if (strncasecmp(body, "REMOVE", 6) == 0) {
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for (i=0;i<areas[areaid]->link_count;i++) {
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if (areas[areaid]->links[i] == msg.oaddr) {
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if (areas[areaid]->link_count == 1) {
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free(areas[areaid]->links);
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areas[areaid]->link_count = 0;
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} else {
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for (j=i;j<areas[areaid]->link_count-1;j++) {
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areas[areaid]->links[j] = areas[areaid]->links[j+1];
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}
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areas[areaid]->links = (int *)realloc(areas[areaid]->links, sizeof(int) * (areas[areaid]->link_count - 1));
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areas[areaid]->link_count--;
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}
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update_config_file_area(areaid);
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return 1;
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}
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}
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}
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return 1;
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}
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for (i=0;i<areas[areaid]->link_count;i++) {
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if (areas[areaid]->links[i] == msg.oaddr) {
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continue;
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}
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if (imhub) {
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snprintf(buffer2, PATH_MAX, "%s/%d/", baseoutdir, areas[areaid]->links[i]);
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} else {
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snprintf(buffer2, PATH_MAX, "%s/%d/", baseoutdir, hubnode);
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}
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if (stat(buffer2, &st) != 0) {
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if (mkdir(buffer2, 0755) != 0) {
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fprintf(stderr, "Error making directory %s\n", buffer2);
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continue;
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}
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}
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if (imhub) {
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snprintf(buffer2, PATH_MAX, "%s/%d/%d-%s", baseoutdir, areas[areaid]->links[i], areas[areaid]->links[i], filename);
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} else {
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snprintf(buffer2, PATH_MAX, "%s/%d/%d-%s", baseoutdir, hubnode, areas[areaid]->links[i], filename);
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}
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copy_file(buffer, buffer2);
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}
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}
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}
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ret = isdupe(&msg, uuid);
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if (ret == -1) {
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free(body);
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fclose(fptr);
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return 0;
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} else if (ret == 1) {
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free(body);
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fclose(fptr);
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return 1;
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}
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for (i=strlen(body) -2; i > 0; i--) {
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if (body[i] == '\r') {
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sprintf(buffer, "\r---\r * Origin: mnet->ftn (%s)", fido_addr);
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body = realloc(body, strlen(body) + strlen(buffer) + 1);
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strcat(body, buffer);
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}
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}
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JAM_ClearMsgHeader(&jmh);
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jmh.DateWritten = msg.timedate;
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jmh.Attribute |= JAM_MSG_TYPEECHO;
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jmh.Attribute |= JAM_MSG_LOCAL;
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jsp = JAM_NewSubPacket();
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jsf.LoID = JAMSFLD_SENDERNAME;
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jsf.HiID = 0;
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jsf.DatLen = strlen(msg.from);
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jsf.Buffer = msg.from;
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JAM_PutSubfield(jsp, &jsf);
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jsf.LoID = JAMSFLD_RECVRNAME;
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jsf.HiID = 0;
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jsf.DatLen = strlen(msg.to);
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jsf.Buffer = msg.to;
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JAM_PutSubfield(jsp, &jsf);
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jsf.LoID = JAMSFLD_SUBJECT;
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jsf.HiID = 0;
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jsf.DatLen = strlen(msg.subject);
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jsf.Buffer = msg.subject;
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JAM_PutSubfield(jsp, &jsf);
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sprintf(buffer, "%s", fido_addr);
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jsf.LoID = JAMSFLD_OADDRESS;
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jsf.HiID = 0;
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jsf.DatLen = strlen(buffer);
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jsf.Buffer = buffer;
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JAM_PutSubfield(jsp, &jsf);
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sprintf(buffer, "%s %08lx", fido_addr, generate_msgid());
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jsf.LoID = JAMSFLD_MSGID;
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jsf.HiID = 0;
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jsf.DatLen = strlen(buffer);
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jsf.Buffer = buffer;
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JAM_PutSubfield(jsp, &jsf);
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jb = open_jam_base(areas[areaid]->basedir);
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if (!jb) {
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return 0;
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}
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while (1) {
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z = JAM_LockMB(jb, 100);
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if (z == 0) {
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break;
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} else if (z == JAM_LOCK_FAILED) {
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sleep(1);
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} else {
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free(body);
|
|
JAM_DelSubPacket(jsp);
|
|
JAM_CloseMB(jb);
|
|
free(jb);
|
|
fprintf(stderr, "Error locking JAM base!\n");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
snprintf(buffer, PATH_MAX, "%s.msgids", areas[areaid]->basedir);
|
|
fptr = fopen(buffer, "a");
|
|
if (!fptr) {
|
|
fprintf(stderr, "Error writing msgid to base\n");
|
|
} else {
|
|
fputs(uuid, fptr);
|
|
fputc('\n', fptr);
|
|
fclose(fptr);
|
|
}
|
|
|
|
if (JAM_AddMessage(jb, &jmh, jsp, body, strlen(body))) {
|
|
JAM_UnlockMB(jb);
|
|
JAM_DelSubPacket(jsp);
|
|
JAM_CloseMB(jb);
|
|
free(jb);
|
|
fprintf(stderr, "Error Adding Message!\n");
|
|
free(body);
|
|
return 0;
|
|
}
|
|
JAM_UnlockMB(jb);
|
|
JAM_DelSubPacket(jsp);
|
|
JAM_CloseMB(jb);
|
|
free(jb);
|
|
|
|
free(body);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
int i;
|
|
int l;
|
|
int processed = 0;
|
|
DIR *indir;
|
|
struct dirent *dent;
|
|
char buffer[PATH_MAX];
|
|
|
|
if (argc < 3) {
|
|
fprintf(stderr, "Usage ./mnettoftn mnetftn.cfg FTN_ADDR\n");
|
|
return -1;
|
|
}
|
|
|
|
if (!parse_config_file(argv[1])) {
|
|
fprintf(stderr, "Error parsing config file: %s\n", argv[1]);
|
|
return -1;
|
|
}
|
|
|
|
config_file = argv[1];
|
|
fido_addr = argv[2];
|
|
|
|
if (baseoutdir == NULL) {
|
|
fprintf(stderr, "OUTDIR must be defined\n");
|
|
return -1;
|
|
}
|
|
|
|
if (baseindir == NULL) {
|
|
fprintf(stderr, "INDIR must be defined\n");
|
|
return -1;
|
|
}
|
|
|
|
printf("In Base Dir: %s\n", baseindir);
|
|
|
|
indir = opendir(baseindir);
|
|
if (!indir) {
|
|
fprintf(stderr, "Error opening inbound directory!\n");
|
|
return -1;
|
|
}
|
|
|
|
while ((dent = readdir(indir)) != NULL) {
|
|
if (strlen(dent->d_name) < 8) {
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(&dent->d_name[strlen(dent->d_name) - 8], ".message") == 0) {
|
|
if (import(dent->d_name)) {
|
|
processed++;
|
|
snprintf(buffer, PATH_MAX, "%s/%s", baseindir, dent->d_name);
|
|
unlink(buffer);
|
|
rewinddir(indir);
|
|
}
|
|
}
|
|
}
|
|
closedir(indir);
|
|
|
|
printf("Processed %d Messages\n", processed);
|
|
return 0;
|
|
}
|