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();
  37 struct config config;
  38
  39 char roomlist[MAXROOMS][20];
  40
  41 void load_roomlist() {
  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(room,ngroup)              /* xref table */
  60 char room[];
  61 char ngroup[]; {
  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(room,ngroup)
  91 char room[];
  92 char ngroup[]; {
  93         char ngbuf[256];
  94         char tryme[256];
  95         int a,b;
  96         struct quickroom qbuf;
  97
  98         strcpy(ngbuf,ngroup);
  99         strcat(ngbuf,",");
 100         for (a=0; a<strlen(ngbuf); ++a) {
 101                 if ((ngbuf[a]==',')||(ngbuf[a]==0)) {
 102                         strcpy(tryme,ngbuf);
 103                         tryme[a]=0;
 104                         if (!rnewsxref(room,tryme)) return;
 105                         room[sizeof(qbuf.QRname)-1]=0;
 106                         for (b=0; b<MAXROOMS; ++b) {
 107                                 if (!strcasecmp(roomlist[b],room)) return;
 108                                 }
 109                         strcpy(ngbuf,&ngbuf[a+1]);
 110                         a=(-1);
 111                         }
 112                 }
 113         }
 114
 115 void main(argc,argv)
 116 int argc;
 117 char *argv[]; {
 118         char aaa[128],bbb[128],ccc[128];
 119         char author[128],recipient[128],room[128],node[128],path[512];
 120         char subject[128];
 121         char orgname[128];
 122         long mid = 0L;
 123         long now,bcount,aa;
 124         int a;
 125         char flnm[128],tname[128];
 126         FILE *minput,*mout,*mtemp;
 127         char binary_input = 0;
 128         char compressed_input = 0;
 129         char spool_only = 0;
 130
 131         get_config();
 132         sprintf(flnm,"./network/spoolin/rnews.%d",getpid());
 133         sprintf(tname,"/tmp/rnews.%d",getpid());
 134
 135         for (a=1; a<argc; ++a) {
 136                 if (!strcmp(argv[a],"-c")) binary_input = 1;
 137                 if (!strcmp(argv[a],"-z")) compressed_input = 1;
 138                 if (!strcmp(argv[a],"-s")) spool_only = 1;
 139                 }
 140
 141         minput=stdin;
 142         if (compressed_input) minput=popen(UNCOMPRESS,"r");
 143         if (minput==NULL) fprintf(stderr,"rnews: can't open input!!!!\n");
 144
 145         mout=fopen(flnm,"w");
 146
 147         /* process Citadel/UX binary format input */
 148         if (binary_input) {
 149                 while ((a=getc(minput))>=0) putc(a,mout);
 150                 goto END;
 151                 }
 152
 153         /* process UseNet news input */
 154         load_roomlist();
 155 A:      if (fgets(aaa,128,minput)==NULL) goto END;
 156         aaa[strlen(aaa)-1]=0;
 157         if (strncmp(aaa,"#! rnews ",9)) goto A;
 158         bcount=atol(&aaa[9]);
 159         mtemp=fopen(tname,"w");
 160         for (aa=0L; aa<bcount; ++aa) {
 161                 a=getc(minput);
 162                 if (a<0) goto NMA;
 163                 if (a>=0) putc(a,mtemp);
 164                 }
 165 NMA:    fclose(mtemp);
 166         if (a<0) {
 167                 fprintf(stderr,"rnews: EOF unexpected\n");
 168                 goto END;
 169                 }
 170
 171         mtemp=fopen(tname,"r");
 172         strcpy(author,"");
 173         strcpy(recipient,"");
 174         strcpy(room,"");
 175         strcpy(node,"");
 176         strcpy(path,"");
 177         strcpy(orgname,"");
 178         strcpy(subject,"");
 179
 180 B:      if (fgets(aaa,128,mtemp)==NULL) goto ABORT;
 181         aaa[strlen(aaa)-1]=0;
 182         if (strlen(aaa)==0) goto C;
 183
 184
 185         if (!strncmp(aaa,"From: ",6)) {
 186                 strcpy(author,&aaa[6]);
 187                 while((author[0]==' ')&&(strlen(author)>0))
 188                         strcpy(author,&author[1]);
 189                 for (a=0; a<strlen(author); ++a) {
 190                         if (author[a]=='<') author[a-1]=0;
 191                         if (author[a]==')') author[a]=0;
 192                         if (author[a]=='(') {
 193                                 strcpy(author,&author[a+1]);
 194                                 a=0;
 195                                 }
 196                         }
 197                 if (!strcmp(author,")")) {
 198                         strcpy(author,&aaa[6]);
 199                         for (a=0; a<strlen(author); ++a)
 200                                 if (author[a]=='@') author[a]=0;
 201                         }
 202                 strcpy(node,&aaa[6]);
 203                 for (a=0; a<strlen(node); ++a) {
 204                         if ((node[a]=='<')||(node[a]=='@')) {
 205                                 strcpy(node,&node[a+1]);
 206                                 a=0;
 207                                 }
 208                         if (node[a]=='>') node[a]=0;
 209                         if (node[a]=='(') node[a-1]=0;
 210                         }
 211                 for (a=0; a<strlen(author); ++a)
 212                         if (author[a]=='@') author[a]=0;
 213                 }
 214
 215         if (!strncmp(aaa,"Path: ",6)) strcpy(path,&aaa[6]);
 216         if (!strncmp(aaa,"To: ",4)) strcpy(recipient,&aaa[4]);
 217         if (!strncmp(aaa,"Subject: ",9)) strcpy(subject,&aaa[9]);
 218         if (!strncmp(aaa,"Organization: ",14)) strcpy(orgname,&aaa[14]);
 219
 220         if (!strncmp(aaa,"Newsgroups: ",11)) {
 221                 strcpy(room,&aaa[12]);
 222                 for (a=0; a<strlen(aaa); ++a) if (aaa[a]==',') aaa[a]=0;
 223                 goto B;
 224                 }
 225
 226         if (!strncmp(aaa,"Message-ID: ",11)) {
 227                 strcpy(bbb,&aaa[13]);
 228                 for (a=0; a<strlen(bbb); ++a) if (bbb[a]=='@') bbb[a]=0;
 229                 mid=atol(bbb);
 230                 while((aaa[0]!='@')&&(aaa[0]!=0)) {
 231                         strcpy(&aaa[0],&aaa[1]);
 232                         }
 233                 strcpy(&aaa[0],&aaa[1]);
 234                 for (a=0; a<strlen(aaa); ++a) if (aaa[a]=='>') aaa[a]=0;
 235                 strcpy(node,aaa);
 236                 goto B;
 237                 }
 238                 goto B;
 239
 240 C:      if ((author[0]==0)||(room[0]==0)||(node[0]==0)) goto ABORT;
 241         putc(255,mout);                 /* start of message */
 242         putc(MES_NORMAL,mout);          /* not anonymous */
 243         putc(1,mout);                   /* not formatted */
 244         time(&now);
 245
 246         fprintf(mout,"I%ld",mid); putc(0,mout);
 247         fprintf(mout,"P%s",path); putc(0,mout);
 248         fprintf(mout,"T%ld",now); putc(0,mout);
 249         fprintf(mout,"A%s",author); putc(0,mout);
 250         strcpy(ccc,room);
 251         getroom(room,ccc);
 252         fprintf(mout,"O%s",room); putc(0,mout);
 253         fprintf(mout,"N%s",node); putc(0,mout);
 254         if (orgname[0]!=0) {
 255                 fprintf(mout,"H%s",orgname); putc(0,mout);
 256                 }
 257         if (recipient[0]!=0) {
 258                 fprintf(mout,"R%s",recipient); putc(0,mout);
 259                 }
 260         if (subject[0]!=0) {
 261                 fprintf(mout,"U%s",subject); putc(0,mout);
 262                 }
 263         fprintf(mout,"M");
 264         a=0;
 265         aaa[0]=0;
 266
 267         do {
 268                 a=getc(mtemp);
 269                 if (a>0) putc(a,mout);
 270                 } while (a>0);
 271         putc(0,mout);
 272 ABORT:  fclose(mtemp);
 273         unlink(tname);
 274         goto A;
 275
 276 END:    putc(0,mout);
 277         fclose(mout);
 278         unlink(tname);
 279         if (compressed_input) pclose(minput);
 280         if (!spool_only) execlp("./netproc","netproc",NULL);
 281         exit(0);
 282 }
 283
 284