citadel/rcit.c

   1 #define UNCOMPRESS "/usr/bin/gunzip"
   2
   3 /* Citadel/UX rcit
   4  * version 2.9
   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 /*
  40  * Cross-reference newsgroup names to Citadel room names
  41  */
  42 int rnewsxref(char *room, char *ngroup) {
  43         FILE *fp;
  44         int a,b;
  45         char aaa[50],bbb[50];
  46
  47         strcpy(room,ngroup);
  48         fp=fopen("network/rnews.xref","r");
  49 GNA:    strcpy(aaa,""); strcpy(bbb,"");
  50         do {
  51                 a=getc(fp);
  52                 if (a==',') a=0;
  53                 if (a>0) { b=strlen(aaa); aaa[b]=a; aaa[b+1]=0; }
  54                 } while(a>0);
  55         do {
  56                 a=getc(fp);
  57                 if (a==10) a=0;
  58                 if (a>0) { b=strlen(bbb); bbb[b]=a; bbb[b+1]=0; }
  59                 } while(a>0);
  60         if (a<0) {
  61                 fclose(fp);
  62                 return(1);
  63                 }
  64         if (strcasecmp(ngroup,aaa)) goto GNA;
  65         fclose(fp);
  66         strcpy(room,bbb);
  67         return(0);
  68         }
  69
  70
  71 void main(int argc, char **argv)
  72 {
  73         char aaa[128],bbb[128],ccc[128];
  74         char author[128],recipient[128],room[128],node[128],path[512];
  75         char subject[128];
  76         char orgname[128];
  77         long mid = 0L;
  78         long now,bcount,aa;
  79         int a;
  80         char flnm[128],tname[128];
  81         FILE *minput,*mout,*mtemp;
  82         char binary_input = 0;
  83         char compressed_input = 0;
  84         char spool_only = 0;
  85
  86         get_config();
  87         sprintf(flnm,"./network/spoolin/rnews.%d",getpid());
  88         sprintf(tname,"/tmp/rnews.%d",getpid());
  89
  90         for (a=1; a<argc; ++a) {
  91                 if (!strcmp(argv[a],"-c")) binary_input = 1;
  92                 if (!strcmp(argv[a],"-z")) compressed_input = 1;
  93                 if (!strcmp(argv[a],"-s")) spool_only = 1;
  94                 }
  95
  96         minput=stdin;
  97         if (compressed_input) minput=popen(UNCOMPRESS,"r");
  98         if (minput==NULL) fprintf(stderr,"rnews: can't open input!!!!\n");
  99
 100         mout=fopen(flnm,"w");
 101
 102         /* process Citadel/UX binary format input */
 103         if (binary_input) {
 104                 while ((a=getc(minput))>=0) putc(a,mout);
 105                 goto END;
 106                 }
 107
 108         /* process UseNet news input */
 109 A:      if (fgets(aaa,128,minput)==NULL) goto END;
 110         aaa[strlen(aaa)-1]=0;
 111         if (strncmp(aaa,"#! rnews ",9)) goto A;
 112         bcount=atol(&aaa[9]);
 113         mtemp=fopen(tname,"w");
 114         for (aa=0L; aa<bcount; ++aa) {
 115                 a=getc(minput);
 116                 if (a<0) goto NMA;
 117                 if (a>=0) putc(a,mtemp);
 118                 }
 119 NMA:    fclose(mtemp);
 120         if (a<0) {
 121                 fprintf(stderr,"rnews: EOF unexpected\n");
 122                 goto END;
 123                 }
 124
 125         mtemp=fopen(tname,"r");
 126         strcpy(author,"");
 127         strcpy(recipient,"");
 128         strcpy(room,"");
 129         strcpy(node,"");
 130         strcpy(path,"");
 131         strcpy(orgname,"");
 132         strcpy(subject,"");
 133
 134 B:      if (fgets(aaa,128,mtemp)==NULL) goto ABORT;
 135         aaa[strlen(aaa)-1]=0;
 136         if (strlen(aaa)==0) goto C;
 137
 138
 139         if (!strncmp(aaa,"From: ",6)) {
 140                 strcpy(author,&aaa[6]);
 141                 while((author[0]==' ')&&(strlen(author)>0))
 142                         strcpy(author,&author[1]);
 143                 for (a=0; a<strlen(author); ++a) {
 144                         if (author[a]=='<') author[a-1]=0;
 145                         if (author[a]==')') author[a]=0;
 146                         if (author[a]=='(') {
 147                                 strcpy(author,&author[a+1]);
 148                                 a=0;
 149                                 }
 150                         }
 151                 if (!strcmp(author,")")) {
 152                         strcpy(author,&aaa[6]);
 153                         for (a=0; a<strlen(author); ++a)
 154                                 if (author[a]=='@') author[a]=0;
 155                         }
 156                 strcpy(node,&aaa[6]);
 157                 for (a=0; a<strlen(node); ++a) {
 158                         if ((node[a]=='<')||(node[a]=='@')) {
 159                                 strcpy(node,&node[a+1]);
 160                                 a=0;
 161                                 }
 162                         if (node[a]=='>') node[a]=0;
 163                         if (node[a]=='(') node[a-1]=0;
 164                         }
 165                 for (a=0; a<strlen(author); ++a)
 166                         if (author[a]=='@') author[a]=0;
 167                 }
 168
 169         if (!strncmp(aaa,"Path: ",6)) strcpy(path,&aaa[6]);
 170         if (!strncmp(aaa,"To: ",4)) strcpy(recipient,&aaa[4]);
 171         if (!strncmp(aaa,"Subject: ",9)) strcpy(subject,&aaa[9]);
 172         if (!strncmp(aaa,"Organization: ",14)) strcpy(orgname,&aaa[14]);
 173
 174         if (!strncmp(aaa,"Newsgroups: ",11)) {
 175                 strcpy(room,&aaa[12]);
 176                 for (a=0; a<strlen(aaa); ++a) if (aaa[a]==',') aaa[a]=0;
 177                 goto B;
 178                 }
 179
 180         if (!strncmp(aaa,"Message-ID: ",11)) {
 181                 strcpy(bbb,&aaa[13]);
 182                 for (a=0; a<strlen(bbb); ++a) if (bbb[a]=='@') bbb[a]=0;
 183                 mid=atol(bbb);
 184                 while((aaa[0]!='@')&&(aaa[0]!=0)) {
 185                         strcpy(&aaa[0],&aaa[1]);
 186                         }
 187                 strcpy(&aaa[0],&aaa[1]);
 188                 for (a=0; a<strlen(aaa); ++a) if (aaa[a]=='>') aaa[a]=0;
 189                 strcpy(node,aaa);
 190                 goto B;
 191                 }
 192                 goto B;
 193
 194 C:      if ((author[0]==0)||(room[0]==0)||(node[0]==0)) goto ABORT;
 195         putc(255,mout);                 /* start of message */
 196         putc(MES_NORMAL,mout);          /* not anonymous */
 197         putc(1,mout);                   /* not formatted */
 198         time(&now);
 199
 200         fprintf(mout,"I%ld",mid); putc(0,mout);
 201         fprintf(mout,"P%s",path); putc(0,mout);
 202         fprintf(mout,"T%ld",now); putc(0,mout);
 203         fprintf(mout,"A%s",author); putc(0,mout);
 204         strcpy(ccc,room);
 205         rnewsxref(room,ccc);
 206         fprintf(mout,"O%s",room); putc(0,mout);
 207         fprintf(mout,"N%s",node); putc(0,mout);
 208         if (orgname[0]!=0) {
 209                 fprintf(mout,"H%s",orgname); putc(0,mout);
 210                 }
 211         if (recipient[0]!=0) {
 212                 fprintf(mout,"R%s",recipient); putc(0,mout);
 213                 }
 214         if (subject[0]!=0) {
 215                 fprintf(mout,"U%s",subject); putc(0,mout);
 216                 }
 217         fprintf(mout,"M");
 218         a=0;
 219         aaa[0]=0;
 220
 221         do {
 222                 a=getc(mtemp);
 223                 if (a>0) putc(a,mout);
 224                 } while (a>0);
 225         putc(0,mout);
 226 ABORT:  fclose(mtemp);
 227         unlink(tname);
 228         goto A;
 229
 230 END:    putc(0,mout);
 231         fclose(mout);
 232         unlink(tname);
 233         if (compressed_input) pclose(minput);
 234         if (!spool_only) execlp("./netproc","netproc",NULL);
 235         exit(0);
 236 }
 237
 238