diff -N -u -r publicfile-0.52.orig/Makefile publicfile-0.52/Makefile --- publicfile-0.52.orig/Makefile Mon Nov 8 23:23:46 1999 +++ publicfile-0.52/Makefile Wed Aug 29 20:27:09 2001 @@ -234,21 +234,43 @@ compile hier.c auto_home.h ./compile hier.c +htrules: \ +load htrules.o base64.o + ./load htrules cdb.a base64.o byte.a getln.a stralloc.a alloc.a \ + substdio.a str.a buffer.a unix.a + +htrules.o: \ +compile htrules.c strerr.h stralloc.h gen_alloc.h getln.h buffer.h \ +stralloc.h buffer.h exit.h fmt.h byte.h cdb_make.h buffer.h uint32.h \ +base64.h + ./compile htrules.c + +base64.o: \ +compile base64.c base64.h + ./compile base64.c + httpd: \ load httpd.o main.o pathdecode.o file.o filetype.o httpdate.o \ percent.o prot.o timeoutread.o timeoutwrite.o libtai.a case.a getln.a \ stralloc.a alloc.a substdio.a error.a open.a sig.a env.a str.a fs.a \ -socket.lib +socket.lib readclose.o openreadclose.o ./load httpd main.o pathdecode.o file.o filetype.o \ httpdate.o percent.o prot.o timeoutread.o timeoutwrite.o \ libtai.a case.a getln.a stralloc.a alloc.a substdio.a \ - error.a open.a sig.a env.a str.a fs.a `cat socket.lib` + error.a open.a sig.a env.a str.a fs.a cdb.a byte.a seek_set.o \ + readclose.o openreadclose.o `cat socket.lib` + +cdb: + (cd __PORTSDIR__/databases/cdb/work/cdb-0.75 && \ + make && \ + cp -p cdb_make.h buffer.h cdb.h uint32.h cdb.a byte.a seek_set.o \ + cdb_make.o error.c buffer.a unix.a __WRKSRC__/) httpd.o: \ compile httpd.c pathdecode.h stralloc.h gen_alloc.h file.h tai.h \ uint64.h filetype.h stralloc.h percent.h stralloc.h stralloc.h sig.h \ exit.h fmt.h case.h str.h tai.h httpdate.h stralloc.h tai.h \ -timeoutread.h timeoutwrite.h substdio.h error.h getln.h +timeoutread.h timeoutwrite.h substdio.h error.h getln.h byte.h ./compile httpd.c httpdate.o: \ @@ -358,6 +380,11 @@ compile open_trunc.c open.h ./compile open_trunc.c +openreadclose.o: \ +compile openreadclose.c error.h open.h readclose.h stralloc.h \ +gen_alloc.h openreadclose.h stralloc.h + ./compile openreadclose.c + pathdecode.o: \ compile pathdecode.c pathdecode.h stralloc.h gen_alloc.h ./compile pathdecode.c @@ -367,7 +394,7 @@ ./compile percent.c prog: \ -configure httpd ftpd rts utime +cdb configure httpd ftpd rts utime htrules prot.o: \ compile prot.c hasshsgr.h prot.h diff -N -u -r publicfile-0.52.orig/README.basicauth publicfile-0.52/README.basicauth --- publicfile-0.52.orig/README.basicauth Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/README.basicauth Wed Aug 29 22:16:02 2001 @@ -0,0 +1,100 @@ +Here is a patch for publicfile to allow for Basic Auth. + +Building Instructions: + +Save this patch as publicfile-0.52.basicauth.patch +Download publicfile-0.52 +Download cdb-0.75 + +gunzip publicfile-0.52.tar +gunzip cdb-0.75.tar +tar -xf publicfile-0.52.tar +cd publicfile-0.52 +tar -xf ../cdb-0.75.tar +patch -p1 < publicfile-0.52.basicauth.patch + +Follow normal installation instructions for publicfile beginning with +'make setup check' + +Usage Instructions: + +Once this patch has been applied, httpd will check for a file +called '.access' in the current directory of any requested +file. e.g, if /public/file/0/path/to/file.html is requested, httpd +will first check for /public/file/0/path/to/.access. + +.access should have the format: + realm_id:realm_txt + +realm_id is used as documented below. realm_txt is typically +presented by the user's browser. .access must be readable by httpd +and only protects a specific directory. Sub-directories are not +protected unless they also contain a .access file. + +An additional program will be installed in /usr/local/publicfile (or +whatever conf-home is) called htrules. Use this like tcprules: + +cd /public/file +htrules access.cdb access.tmp < access + +This may safely be run at any time. + +access should have the format: + + # this is a comment. blank lines are allowed too. + # the next line authorizes a user to a specific realm_id + realm_id:username:password + # the next line authorizes host class. + realm_id:LOCALHOST + +access.cdb must be readable by httpd. + +realm_id corresponds to the realm_id in the .access file(s). + +Each realm_id line specifies either a username:password combination +or a host class. Note that the same username may have different +passwords in different realm_id's. + +A host is mapped into a host class via the environment +variable HTTPCLIENT. This environment variable should be +set in tcpserver's rules.cdb. + +Here is an example: + + === /public/file/0/private1/.access === + realm1:Dr. Suess + + === /public/file/0/private2/.access === + realm2:Sesame Street + + === /public/file/access === + # realm1 are Dr Suess users/clients + realm1:john:catinthehat + realm1:mary:greeneggswithham + realm1:LOCALHOST + realm1:DR SUESS + # realm1 are Sesame Street users/clients + realm2:tom:bigbird + realm2:abi:cookiemonster + realm2:mary:earnie + realm2:LOCALHOST + realm2:SESAME STREET + + === /etc/rules === + 127.0.0.1:allow,HTTPCLIENT="LOCALHOST" + 10.0.0.:allow,HTTPCLIENT="DR SUESS" + 10.1.0.:allow,HTTPCLIENT="SESAME STREET" + :allow + +The changes to the Makefile aren't very clean, but everything compiles +correctly. + +Thanks to Eric M. Johnston's for base64.{c,h} from YAQSAP +(Yet Another qmail SMTP AUTH Patch) - +http://qmail.goof.com/qmail-auth-20010105.tar.gz + +This patch available at +http://www.soffian.org/downloads/publicfile-0.52_basicauth.patch + +Jay Soffian 29 Aug 2001 + diff -N -u -r publicfile-0.52.orig/base64.c publicfile-0.52/base64.c --- publicfile-0.52.orig/base64.c Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/base64.c Wed Aug 22 22:17:39 2001 @@ -0,0 +1,90 @@ +#include "base64.h" +#include "stralloc.h" +#include "substdio.h" +#include "str.h" + +static char *b64alpha = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; +#define B64PAD '=' + +/* returns 0 ok, 1 illegal, -1 problem */ + +int b64decode(in,l,out) +const unsigned char *in; +int l; +stralloc *out; /* not null terminated */ +{ + int i, j; + unsigned char a[4]; + unsigned char b[3]; + char *s; + + if (l == 0) + { + if (!stralloc_copys(out,"")) return -1; + return 0; + } + + if (!stralloc_ready(out,l + 2)) return -1; /* XXX generous */ + s = out->s; + + for (i = 0;i < l;i += 4) { + for (j = 0;j < 4;j++) + if ((i + j) < l && in[i + j] != B64PAD) + { + a[j] = str_chr(b64alpha,in[i + j]); + if (a[j] > 63) return 1; + } + else a[j] = 0; + + b[0] = (a[0] << 2) | (a[1] >> 4); + b[1] = (a[1] << 4) | (a[2] >> 2); + b[2] = (a[2] << 6) | (a[3]); + + *s++ = b[0]; + + if (in[i + 1] == B64PAD) break; + *s++ = b[1]; + + if (in[i + 2] == B64PAD) break; + *s++ = b[2]; + } + out->len = s - out->s; + while (out->len && !out->s[out->len - 1]) --out->len; /* XXX avoid? */ + return 0; +} + +int b64encode(in,out) +stralloc *in; +stralloc *out; /* not null terminated */ +{ + unsigned char a, b, c; + int i; + char *s; + + if (in->len == 0) + { + if (!stralloc_copys(out,"")) return -1; + return 0; + } + + if (!stralloc_ready(out,in->len / 3 * 4 + 4)) return -1; + s = out->s; + + for (i = 0;i < in->len;i += 3) { + a = in->s[i]; + b = i + 1 < in->len ? in->s[i + 1] : 0; + c = i + 2 < in->len ? in->s[i + 2] : 0; + + *s++ = b64alpha[a >> 2]; + *s++ = b64alpha[((a & 3 ) << 4) | (b >> 4)]; + + if (i + 1 >= in->len) *s++ = B64PAD; + else *s++ = b64alpha[((b & 15) << 2) | (c >> 6)]; + + if (i + 2 >= in->len) *s++ = B64PAD; + else *s++ = b64alpha[c & 63]; + } + out->len = s - out->s; + return 0; +} diff -N -u -r publicfile-0.52.orig/base64.h publicfile-0.52/base64.h --- publicfile-0.52.orig/base64.h Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/base64.h Wed Aug 22 22:17:39 2001 @@ -0,0 +1,7 @@ +#ifndef BASE64_H +#define BASE64_H + +extern int b64decode(); +extern int b64encode(); + +#endif diff -N -u -r publicfile-0.52.orig/hier.c publicfile-0.52/hier.c --- publicfile-0.52.orig/hier.c Mon Nov 8 23:23:46 1999 +++ publicfile-0.52/hier.c Wed Aug 22 22:17:39 2001 @@ -7,6 +7,7 @@ d(auto_home,"bin",-1,-1,02755); c(auto_home,"bin","configure",-1,-1,0755); + c(auto_home,"bin","htrules",-1,-1,0755); c(auto_home,"bin","httpd",-1,-1,0755); c(auto_home,"bin","ftpd",-1,-1,0755); } diff -N -u -r publicfile-0.52.orig/htrules.c publicfile-0.52/htrules.c --- publicfile-0.52.orig/htrules.c Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/htrules.c Wed Aug 29 21:27:42 2001 @@ -0,0 +1,117 @@ +#include "strerr.h" +#include "stralloc.h" +#include "getln.h" +#include "buffer.h" +#include "exit.h" +#include "fmt.h" +#include "byte.h" +#include "base64.h" +#include "cdb_make.h" + +#define FATAL "htrules: fatal: " + +unsigned long linenum = 0; +char *fntemp; +char *fn; + +stralloc line = {0}; +int match = 1; + +stralloc base64 = {0}; +stralloc key = {0}; +stralloc realm = {0}; +stralloc userpass = {0}; + +struct cdb_make c; + +void nomem(void) +{ + strerr_die2x(111,FATAL,"out of memory"); +} +void usage(void) +{ + strerr_die1x(100,"htrules: usage: htrules access.cdb access.tmp"); +} +void die_bad(void) +{ + if (!stralloc_0(&line)) nomem(); + strerr_die3x(100,FATAL,"unable to parse this line: ",line.s); +} +void die_write(void) +{ + strerr_die4sys(111,FATAL,"unable to write to ",fntemp,": "); +} + +main(int argc,char **argv) +{ + int colon; + char *x; + int len; + int fd; + int i; + char ch; + + fn = argv[1]; + if (!fn) usage(); + fntemp = argv[2]; + if (!fntemp) usage(); + + fd = open_trunc(fntemp); + if (fd == -1) + strerr_die4sys(111,FATAL,"unable to create ",fntemp,": "); + if (cdb_make_start(&c,fd) == -1) die_write(); + + while (match) { + if (getln(buffer_0,&line,&match,'\n') == -1) + strerr_die2sys(111,FATAL,"unable to read input: "); + + x = line.s; len = line.len; + + if (!len) break; + if (x[0] == '#') continue; + if (x[0] == '\n') continue; + + while (len) { + ch = x[len - 1]; + if (ch != '\n') if (ch != ' ') if (ch != '\t') break; + --len; + } + line.len = len; /* for die_bad() */ + if (!len) continue; + + colon = byte_chr(x,len,':'); + if (!colon || colon == len) die_bad(); + if (!stralloc_copyb(&realm,x,colon)) nomem(); + x += colon + 1; len -= colon + 1; + + colon = byte_chr(x,len,':'); + if (colon == len) { + if (!stralloc_copyb(&key,"C",1)) nomem(); + if (!stralloc_cat(&key,&realm)) nomem(); + if (!stralloc_catb(&key,":",1)) nomem(); + if (!stralloc_catb(&key,x,len)) nomem(); + if (cdb_make_add(&c,key.s,key.len,"",0) == -1) die_write(); + } else { + if (!stralloc_copyb(&userpass,x,len)) nomem(); + if (b64encode(&userpass,&base64) == -1) nomem(); + + if (!stralloc_copyb(&key,"U",1)) nomem(); + if (!stralloc_cat(&key,&base64)) nomem(); + if (cdb_make_add(&c,key.s,key.len,"",0) == -1) die_write(); + + if (!stralloc_copyb(&key,"R",1)) nomem(); + if (!stralloc_cat(&key,&realm)) nomem(); + if (!stralloc_catb(&key,":",1)) nomem(); + if (!stralloc_cat(&key,&base64)) nomem(); + if (cdb_make_add(&c,key.s,key.len,"",0) == -1) die_write(); + } + } + + if (cdb_make_finish(&c) == -1) die_write(); + if (fsync(fd) == -1) die_write(); + if (close(fd) == -1) die_write(); /* NFS stupidity */ + if (rename(fntemp,fn)) + strerr_die6sys(111,FATAL,"unable to move ",fntemp," to ",fn,": "); + + _exit(0); +} diff -N -u -r publicfile-0.52.orig/httpd.c publicfile-0.52/httpd.c --- publicfile-0.52.orig/httpd.c Mon Nov 8 23:23:46 1999 +++ publicfile-0.52/httpd.c Wed Aug 29 21:30:34 2001 @@ -15,6 +15,10 @@ #include "substdio.h" #include "error.h" #include "getln.h" +#include "byte.h" +#include "cdb.h" +#include "openreadclose.h" +#include "env.h" int safewrite(int fd,char *buf,int len) { @@ -51,6 +55,7 @@ stralloc host = {0}; stralloc path = {0}; stralloc ims = {0}; +stralloc basic_auth = {0}; int flagbody = 1; char filebuf[1024]; @@ -75,11 +80,16 @@ out_puts("\r\n"); } -void barf(char *code,char *message) +void barf2(char *code,char *message,char *realm) { if (protocolnum > 0) { tai_now(&now); header(code,message); + if(realm) { + out_puts("WWW-Authenticate: Basic realm=\""); + out_puts(realm); + out_puts("\"\r\n"); + } out_puts("Content-Length: "); out_put(strnum,fmt_ulong(strnum,str_len(message) + 28)); out_puts("\r\n"); @@ -100,8 +110,81 @@ _exit(0); } +void barf(char *code,char *message) +{ + barf2(code,message,(char *)0); +} + stralloc fn = {0}; +stralloc accessfn = {0}; stralloc contenttype = {0}; +stralloc realm = {0}; +stralloc realmtxt = {0}; +stralloc key = {0}; + +void checkauth(void) +{ + int len; + int fd; + int colon; + static struct cdb c; + char *x; + + len = byte_rchr(fn.s,fn.len,'/'); + if (!stralloc_copyb(&accessfn,fn.s,len)) _exit(21); + if (!stralloc_cats(&accessfn,"/.access")) _exit(21); + if (!stralloc_0(&accessfn)) _exit(21); + + if (openreadclose(accessfn.s,&realm,256) == 0) return; + if (!realm.len) _exit(23); /* no realm */ + realm.len = byte_chr(realm.s,realm.len,'\n'); + while (realm.len) { + if (realm.s[realm.len - 1] != ' ') + if (realm.s[realm.len - 1] != '\t') + break; + --realm.len; + } + colon = byte_chr(realm.s,realm.len,':'); + if (!colon) _exit(23); /* no realm */ + if (colon == realm.len) { + if (!stralloc_copys(&realmtxt,"restricted access")) _exit(21); + } else { + if (!stralloc_copyb(&realmtxt,realm.s+colon+1,realm.len-(colon+1))) _exit(21); + realm.len = colon; + } + if (!stralloc_0(&realmtxt)) _exit(21); + + fd = open_read("/access.cdb"); + if (fd == -1) _exit(23); + cdb_init(&c,fd); + + x = env_get("HTTPCLIENT"); + if (x) { + if (!stralloc_copyb(&key,"C",1)) _exit(21); + if (!stralloc_cat(&key,&realm)) _exit(21); + if (!stralloc_catb(&key,":",1)) _exit(21); + if (!stralloc_cats(&key,x)) _exit(21); + if (cdb_find(&c,key.s,key.len) == 1) goto AUTH_OK; + } + + if (!basic_auth.len) barf2("401 ","Authorization Required", realmtxt.s); + + if (!stralloc_copyb(&key,"U",1)) _exit(21); + if (!stralloc_cat(&key,&basic_auth)) _exit(21); + if (cdb_find(&c,key.s,key.len) != 1) + barf2("401 ","Authorization Required",realmtxt.s); + + if (!stralloc_copyb(&key,"R",1)) _exit(21); + if (!stralloc_cat(&key,&realm)) _exit(21); + if (!stralloc_catb(&key,":",1)) _exit(21); + if (!stralloc_cat(&key,&basic_auth)) _exit(21); + if (cdb_find(&c,key.s,key.len) != 1) barf("403 ","Forbidden"); + + AUTH_OK: + alloc_free(key); + cdb_free(&c); + close(fd); +} void get(void) { @@ -124,6 +207,8 @@ if (!stralloc_cat(&fn,&path)) _exit(21); pathdecode(&fn); if (!stralloc_0(&fn)) _exit(21); + + checkauth(); fd = file_open(fn.s,&mtime,&length,1); if (fd == -1) @@ -227,6 +312,7 @@ if (!stralloc_copys(&path,"")) _exit(21); if (!stralloc_copys(&protocol,"")) _exit(21); if (!stralloc_copys(&ims,"")) _exit(21); + if (!stralloc_copys(&basic_auth,"")) _exit(21); protocolnum = 2; spaces = 0; @@ -302,6 +388,8 @@ if (!stralloc_append(&host,&field.s[i])) _exit(21); if (case_startb(field.s,field.len,"if-modified-since:")) if (!stralloc_copyb(&ims,field.s + 18,field.len - 18)) _exit(21); + if (case_startb(field.s,field.len,"authorization: basic ")) + if (!stralloc_copyb(&basic_auth,field.s + 21,field.len - 21)) _exit(21); field.len = 0; } if (!line.len) break; diff -N -u -r publicfile-0.52.orig/openreadclose.c publicfile-0.52/openreadclose.c --- publicfile-0.52.orig/openreadclose.c Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/openreadclose.c Wed Aug 29 14:24:21 2001 @@ -0,0 +1,18 @@ +/* Public domain. */ + +#include "error.h" +#include "open.h" +#include "readclose.h" +#include "openreadclose.h" + +int openreadclose(const char *fn,stralloc *sa,unsigned int bufsize) +{ + int fd; + fd = open_read(fn); + if (fd == -1) { + if (errno == error_noent) return 0; + return -1; + } + if (readclose(fd,sa,bufsize) == -1) return -1; + return 1; +} diff -N -u -r publicfile-0.52.orig/openreadclose.h publicfile-0.52/openreadclose.h --- publicfile-0.52.orig/openreadclose.h Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/openreadclose.h Wed Aug 29 14:24:21 2001 @@ -0,0 +1,10 @@ +/* Public domain. */ + +#ifndef OPENREADCLOSE_H +#define OPENREADCLOSE_H + +#include "stralloc.h" + +extern int openreadclose(const char *,stralloc *,unsigned int); + +#endif diff -N -u -r publicfile-0.52.orig/readclose.c publicfile-0.52/readclose.c --- publicfile-0.52.orig/readclose.c Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/readclose.c Wed Aug 29 14:30:52 2001 @@ -0,0 +1,23 @@ +/* Public domain. */ + +#include +#include "error.h" +#include "readclose.h" + +int readclose_append(int fd,stralloc *sa,unsigned int bufsize) +{ + int r; + for (;;) { + if (!stralloc_readyplus(sa,bufsize)) { close(fd); return -1; } + r = read(fd,sa->s + sa->len,bufsize); + if (r == -1) if (errno == error_intr) continue; + if (r <= 0) { close(fd); return r; } + sa->len += r; + } +} + +int readclose(int fd,stralloc *sa,unsigned int bufsize) +{ + if (!stralloc_copys(sa,"")) { close(fd); return -1; } + return readclose_append(fd,sa,bufsize); +} diff -N -u -r publicfile-0.52.orig/readclose.h publicfile-0.52/readclose.h --- publicfile-0.52.orig/readclose.h Wed Dec 31 16:00:00 1969 +++ publicfile-0.52/readclose.h Wed Aug 29 14:30:52 2001 @@ -0,0 +1,11 @@ +/* Public domain. */ + +#ifndef READCLOSE_H +#define READCLOSE_H + +#include "stralloc.h" + +extern int readclose_append(int,stralloc *,unsigned int); +extern int readclose(int,stralloc *,unsigned int); + +#endif