citadel/rcit.c

   1 #define UNCOMPRESS "/usr/bin/gunzip"
   2
   3 /* Citadel/UX rnews
   4  * version 2.8
   5  *
   6  * This program functions the same as the standard rnews program for
   7  * UseNet. It accepts standard input, and looks for rooms to post messages
   8  * (translated from UseNet format to the Citadel/UX binary message format)
   9  * in that match the names of the newsgroups. network/rnews.xref is checked
  10  * in case the sysop wants to cross-reference room names to newsgroup names.
  11  * If standard input is already in binary, the -c flag should be used.
  12  *   The netproc program is then called to do the processing.
  13  *
  14  * If you have a separate newsreader and don't want to use Citadel for news,
  15  * just call this program something else (rcit, for example) -- but make sure
  16  * to tell your Citadel network neighbors the new name of the program to call.
  17  *
  18  * usage:
  19  *      rnews [-c] [-z] [-s]
  20  * flags:
  21  *      -c      Input is already in Citadel binary format
  22  *              (default is UseNet news format)
  23  *      -z      Input is compressed, run uncompress on it before processing
  24  *      -s      Don't run netproc now, just accept the input into spoolin
  25  */
  26
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <fcntl.h>
  30 #include <stdio.h>
  31 #include <ctype.h>
  32 #include <string.h>
  33 #include <time.h>
  34 #include "citadel.h"
  35
  36 void get_config(void);
  37 struct config config;
  38
  39 char roomlist[MAXROOMS][20];
  40
  41 void load_roomlist(void) {
  42         FILE *fp;
  43         struct quickroom QRtemp;
  44         int a;
  45
  46         for (a=0; a<MAXROOMS; ++a) strcpy(roomlist[a],TWITROOM);
  47         fp=fopen("quickroom","r");
  48         if (fp==NULL) return;
  49         for (a=0; a<MAXROOMS; ++a) {
  50                 fread((char *)&QRtemp,sizeof(struct quickroom),1,fp);
  51                 if (QRtemp.QRflags & QR_INUSE)
  52                         strcpy(roomlist[a],QRtemp.QRname);
  53                 }
  54         fclose(fp);
  55         }
  56
  57
  58
  59 int rnewsxref(char *room, char *ngroup)         /* xref table */
  60
  61                {
  62         FILE *fp;
  63         int a,b;
  64         char aaa[50],bbb[50];
  65
  66         strcpy(room,ngroup);
  67         fp=fopen("network/rnews.xref","r");
  68 GNA:    strcpy(aaa,""); strcpy(bbb,"");
  69         do {
  70                 a=getc(fp);
  71                 if (a==',') a=0;
  72                 if (a>0) { b=strlen(aaa); aaa[b]=a; aaa[b+1]=0; }
  73                 } while(a>0);
  74         do {
  75                 a=getc(fp);
  76                 if (a==10) a=0;
  77                 if (a>0) { b=strlen(bbb); bbb[b]=a; bbb[b+1]=0; }
  78                 } while(a>0);
  79         if (a<0) {
  80                 fclose(fp);
  81                 return(1);
  82                 }
  83         if (strcasecmp(ngroup,aaa)) goto GNA;
  84         fclose(fp);
  85         strcpy(room,bbb);
  86         return(0);
  87         }
  88
  89
  90 void getroom(char *room, char *ngroup)
  91 {
  92         char ngbuf[256];
  93         char tryme[256];
  94         int a,b;
  95         struct quickroom qbuf;
  96
  97         strcpy(ngbuf,ngroup);
  98         strcat(ngbuf,",");
  99         for (a=0; a<strlen(ngbuf); ++a) {
 100                 if ((ngbuf[a]==',')||(ngbuf[a]==0)) {
 101                         strcpy(tryme,ngbuf);
 102                         tryme[a]=0;
 103                         if (!rnewsxref(room,tryme)) return;
 104                         room[sizeof(qbuf.QRname)-1]=0;
 105                         for (b=0; b<MAXROOMS; ++b) {
 106                                 if (!strcasecmp(roomlist[b],room)) return;
 107                                 }
 108                         strcpy(ngbuf,&ngbuf[a+1]);
 109                         a=(-1);
 110                         }
 111                 }
 112         }
 113
 114 void main(int argc, char **argv)
 115 {
 116         char aaa[128],bbb[128],ccc[128];
 117         char author[128],recipient[128],room[128],node[128],path[512];
 118         char subject[128];
 119         char orgname[128];
 120         long mid = 0L;
 121         long now,bcount,aa;
 122         int a;
 123         char flnm[128],tname[128];
 124         FILE *minput,*mout,*mtemp;
 125         char binary_input = 0;
 126         char compressed_input = 0;
 127         char spool_only = 0;
 128
 129         get_config();
 130         sprintf(flnm,"./network/spoolin/rnews.%d",getpid());
 131         sprintf(tname,"/tmp/rnews.%d",getpid());
 132
 133         for (a=1; a<argc; ++a) {
 134                 if (!strcmp(argv[a],"-c")) binary_input = 1;
 135                 if (!strcmp(argv[a],"-z")) compressed_input = 1;
 136                 if (!strcmp(argv[a],"-s")) spool_only = 1;
 137                 }
 138
 139         minput=stdin;
 140         if (compressed_input) minput=popen(UNCOMPRESS,"r");
 141         if (minput==NULL) fprintf(stderr,"rnews: can't open input!!!!\n");
 142
 143         mout=fopen(flnm,"w");
 144
 145         /* process Citadel/UX binary format input */
 146         if (binary_input) {
 147                 while ((a=getc(minput))>=0) putc(a,mout);
 148                 goto END;
 149                 }
 150
 151         /* process UseNet news input */
 152         load_roomlist();
 153 A:      if (fgets(aaa,128,minput)==NULL) goto END;
 154         aaa[strlen(aaa)-1]=0;
 155         if (strncmp(aaa,"#! rnews ",9)) goto A;
 156         bcount=atol(&aaa[9]);
 157         mtemp=fopen(tname,"w");
 158         for (aa=0L; aa<bcount; ++aa) {
 159                 a=getc(minput);
 160                 if (a<0) goto NMA;
 161                 if (a>=0) putc(a,mtemp);
 162                 }
 163 NMA:    fclose(mtemp);
 164         if (a<0) {
 165                 fprintf(stderr,"rnews: EOF unexpected\n");
 166                 goto END;
 167                 }
 168
 169         mtemp=fopen(tname,"r");
 170         strcpy(author,"");
 171         strcpy(recipient,"");
 172         strcpy(room,"");
 173         strcpy(node,"");
 174         strcpy(path,"");
 175         strcpy(orgname,"");
 176         strcpy(subject,"");
 177
 178 B:      if (fgets(aaa,128,mtemp)==NULL) goto ABORT;
 179         aaa[strlen(aaa)-1]=0;
 180         if (strlen(aaa)==0) goto C;
 181
 182
 183         if (!strncmp(aaa,"From: ",6)) {
 184                 strcpy(author,&aaa[6]);
 185                 while((author[0]==' ')&&(strlen(author)>0))
 186                         strcpy(author,&author[1]);
 187                 for (a=0; a<strlen(author); ++a) {
 188                         if (author[a]=='<') author[a-1]=0;
 189                         if (author[a]==')') author[a]=0;
 190                         if (author[a]=='(') {
 191                                 strcpy(author,&author[a+1]);
 192                                 a=0;
 193                                 }
 194                         }
 195                 if (!strcmp(author,")")) {
 196                         strcpy(author,&aaa[6]);
 197                         for (a=0; a<strlen(author); ++a)
 198                                 if (author[a]=='@') author[a]=0;
 199                         }
 200                 strcpy(node,&aaa[6]);
 201                 for (a=0; a<strlen(node); ++a) {
 202                         if ((node[a]=='<')||(node[a]=='@')) {
 203                                 strcpy(node,&node[a+1]);
 204                                 a=0;
 205                                 }
 206                         if (node[a]=='>') node[a]=0;
 207                         if (node[a]=='(') node[a-1]=0;
 208                         }
 209                 for (a=0; a<strlen(author); ++a)
 210                         if (author[a]=='@') author[a]=0;
 211                 }
 212
 213         if (!strncmp(aaa,"Path: ",6)) strcpy(path,&aaa[6]);
 214         if (!strncmp(aaa,"To: ",4)) strcpy(recipient,&aaa[4]);
 215         if (!strncmp(aaa,"Subject: ",9)) strcpy(subject,&aaa[9]);
 216         if (!strncmp(aaa,"Organization: ",14)) strcpy(orgname,&aaa[14]);
 217
 218         if (!strncmp(aaa,"Newsgroups: ",11)) {
 219                 strcpy(room,&aaa[12]);
 220                 for (a=0; a<strlen(aaa); ++a) if (aaa[a]==',') aaa[a]=0;
 221                 goto B;
 222                 }
 223
 224         if (!strncmp(aaa,"Message-ID: ",11)) {
 225                 strcpy(bbb,&aaa[13]);
 226                 for (a=0; a<strlen(bbb); ++a) if (bbb[a]=='@') bbb[a]=0;
 227                 mid=atol(bbb);
 228                 while((aaa[0]!='@')&&(aaa[0]!=0)) {
 229                         strcpy(&aaa[0],&aaa[1]);
 230                         }
 231                 strcpy(&aaa[0],&aaa[1]);
 232                 for (a=0; a<strlen(aaa); ++a) if (aaa[a]=='>') aaa[a]=0;
 233                 strcpy(node,aaa);
 234                 goto B;
 235                 }
 236                 goto B;
 237
 238 C:      if ((author[0]==0)||(room[0]==0)||(node[0]==0)) goto ABORT;
 239         putc(255,mout);                 /* start of message */
 240         putc(MES_NORMAL,mout);          /* not anonymous */
 241         putc(1,mout);                   /* not formatted */
 242         time(&now);
 243
 244         fprintf(mout,"I%ld",mid); putc(0,mout);
 245         fprintf(mout,"P%s",path); putc(0,mout);
 246         fprintf(mout,"T%ld",now); putc(0,mout);
 247         fprintf(mout,"A%s",author); putc(0,mout);
 248         strcpy(ccc,room);
 249         getroom(room,ccc);
 250         fprintf(mout,"O%s",room); putc(0,mout);
 251         fprintf(mout,"N%s",node); putc(0,mout);
 252         if (orgname[0]!=0) {
 253                 fprintf(mout,"H%s",orgname); putc(0,mout);
 254                 }
 255         if (recipient[0]!=0) {
 256                 fprintf(mout,"R%s",recipient); putc(0,mout);
 257                 }
 258         if (subject[0]!=0) {
 259                 fprintf(mout,"U%s",subject); putc(0,mout);
 260                 }
 261         fprintf(mout,"M");
 262         a=0;
 263         aaa[0]=0;
 264
 265         do {
 266                 a=getc(mtemp);
 267                 if (a>0) putc(a,mout);
 268                 } while (a>0);
 269         putc(0,mout);
 270 ABORT:  fclose(mtemp);
 271         unlink(tname);
 272         goto A;
 273
 274 END:    putc(0,mout);
 275         fclose(mout);
 276         unlink(tname);
 277         if (compressed_input) pclose(minput);
 278         if (!spool_only) execlp("./netproc","netproc",NULL);
 279         exit(0);
 280 }
 281
 282