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#include "common.h"
#include <ctype.h>
#include <plumb.h>
typedef struct Message Message;
typedef struct Ctype Ctype;
typedef struct Cmd Cmd;
char root[Pathlen];
char mbname[Elemlen];
int rootlen;
int didopen;
char *user;
char wd[2048];
String *mbpath;
int natural;
int doflush;
int interrupted;
struct Message {
Message *next;
Message *prev;
Message *cmd;
Message *child;
Message *parent;
String *path;
int id;
int len;
int fileno; // number of directory
String *info;
char *from;
char *to;
char *cc;
char *replyto;
char *date;
char *subject;
char *type;
char *disposition;
char *filename;
char deleted;
char stored;
};
Message top;
struct Ctype {
char *type;
char *ext;
int display;
char *plumbdest;
Ctype *next;
};
Ctype ctype[] = {
{ "text/plain", "txt", 1, 0 },
{ "text/html", "htm", 1, 0 },
{ "text/html", "html", 1, 0 },
{ "text/tab-separated-values", "tsv", 1, 0 },
{ "text/richtext", "rtx", 1, 0 },
{ "text/rtf", "rtf", 1, 0 },
{ "text/calendar", "ics", 1, 0 },
{ "text", "txt", 1, 0 },
{ "message/rfc822", "msg", 0, 0 },
{ "image/bmp", "bmp", 0, "image" },
{ "image/jpeg", "jpg", 0, "image" },
{ "image/gif", "gif", 0, "image" },
{ "image/png", "png", 0, "image" },
{ "application/pdf", "pdf", 0, "postscript" },
{ "application/postscript", "ps", 0, "postscript" },
{ "application/", 0, 0, 0 },
{ "image/", 0, 0, 0 },
{ "multipart/", "mul", 0, 0 },
};
Message* acmd(Cmd*, Message*);
Message* bcmd(Cmd*, Message*);
Message* dcmd(Cmd*, Message*);
Message* eqcmd(Cmd*, Message*);
Message* hcmd(Cmd*, Message*);
Message* Hcmd(Cmd*, Message*);
Message* helpcmd(Cmd*, Message*);
Message* icmd(Cmd*, Message*);
Message* pcmd(Cmd*, Message*);
Message* qcmd(Cmd*, Message*);
Message* rcmd(Cmd*, Message*);
Message* scmd(Cmd*, Message*);
Message* ucmd(Cmd*, Message*);
Message* wcmd(Cmd*, Message*);
Message* xcmd(Cmd*, Message*);
Message* ycmd(Cmd*, Message*);
Message* pipecmd(Cmd*, Message*);
Message* rpipecmd(Cmd*, Message*);
Message* bangcmd(Cmd*, Message*);
Message* Pcmd(Cmd*, Message*);
Message* mcmd(Cmd*, Message*);
Message* fcmd(Cmd*, Message*);
Message* quotecmd(Cmd*, Message*);
struct {
char *cmd;
int args;
Message* (*f)(Cmd*, Message*);
char *help;
} cmdtab[] = {
{ "a", 1, acmd, "a reply to sender and recipients" },
{ "A", 1, acmd, "A reply to sender and recipients with copy" },
{ "b", 0, bcmd, "b print the next 10 headers" },
{ "d", 0, dcmd, "d mark for deletion" },
{ "f", 0, fcmd, "f file message by from address" },
{ "h", 0, hcmd, "h print elided message summary (,h for all)" },
{ "help", 0, helpcmd, "help print this info" },
{ "H", 0, Hcmd, "H print message's MIME structure " },
{ "i", 0, icmd, "i incorporate new mail" },
{ "m", 1, mcmd, "m addr forward mail" },
{ "M", 1, mcmd, "M addr forward mail with message" },
{ "p", 0, pcmd, "p print the processed message" },
{ "P", 0, Pcmd, "P print the raw message" },
{ "\"", 0, quotecmd, "\" print a quoted version of msg" },
{ "q", 0, qcmd, "q exit and remove all deleted mail" },
{ "r", 1, rcmd, "r [addr] reply to sender plus any addrs specified" },
{ "rf", 1, rcmd, "rf [addr]file message and reply" },
{ "R", 1, rcmd, "R [addr] reply including copy of message" },
{ "Rf", 1, rcmd, "Rf [addr]file message and reply with copy" },
{ "s", 1, scmd, "s file append raw message to file" },
{ "u", 0, ucmd, "u remove deletion mark" },
{ "w", 1, wcmd, "w file store message contents as file" },
{ "x", 0, xcmd, "x exit without flushing deleted messages" },
{ "y", 0, ycmd, "y synchronize with mail box" },
{ "=", 1, eqcmd, "= print current message number" },
{ "|", 1, pipecmd, "|cmd pipe message body to a command" },
{ "||", 1, rpipecmd, "||cmd pipe raw message to a command" },
{ "!", 1, bangcmd, "!cmd run a command" },
{ nil, 0, nil, nil },
};
enum
{
NARG= 32,
};
struct Cmd {
Message *msgs;
Message *(*f)(Cmd*, Message*);
int an;
char *av[NARG];
int delete;
};
Biobuf out;
int startedfs;
int reverse;
int longestfrom = 12;
String* file2string(String*, char*);
int dir2message(Message*, int);
int filelen(String*, char*);
String* extendpath(String*, char*);
void snprintheader(char*, int, Message*);
void cracktime(char*, char*, int);
int cistrncmp(char*, char*, int);
int cistrcmp(char*, char*);
Reprog* parsesearch(char**);
char* parseaddr(char**, Message*, Message*, Message*, Message**);
char* parsecmd(char*, Cmd*, Message*, Message*);
char* readline(char*, char*, int);
void messagecount(Message*);
void system(char*, char**, int);
void mkid(String*, Message*);
int switchmb(char*, char*);
void closemb(void);
int lineize(char*, char**, int);
int rawsearch(Message*, Reprog*);
Message* dosingleton(Message*, char*);
String* rooted(String*);
int plumb(Message*, Ctype*);
String* addrecolon(char*);
void exitfs(char*);
Message* flushdeleted(Message*);
void
usage(void)
{
fprint(2, "usage: %s [-nr] [-f mailfile] [-s mailfile]\n", argv0);
fprint(2, " %s -c dir\n", argv0);
exits("usage");
}
void
catchnote(void*, char *note)
{
if(strstr(note, "interrupt") != nil){
interrupted = 1;
noted(NCONT);
}
noted(NDFLT);
}
char *
plural(int n)
{
if (n == 1)
return "";
return "s";
}
void
main(int argc, char **argv)
{
Message *cur, *m, *x;
char cmdline[4*1024];
Cmd cmd;
Ctype *cp;
int n, cflag;
char *av[4];
String *prompt;
char *err, *file, *singleton;
quotefmtinstall();
Binit(&out, 1, OWRITE);
file = nil;
singleton = nil;
reverse = 1;
cflag = 0;
ARGBEGIN {
case 'c':
cflag = 1;
break;
case 'f':
file = EARGF(usage());
break;
case 's':
singleton = EARGF(usage());
break;
case 'r':
reverse = 0;
break;
case 'n':
natural = 1;
reverse = 0;
break;
default:
usage();
break;
} ARGEND;
user = getlog();
if(user == nil || *user == 0)
sysfatal("can't read user name");
if(cflag){
if(argc > 0)
creatembox(user, argv[0]);
else
creatembox(user, nil);
exits(0);
}
if(argc)
usage();
if(access("/mail/fs/ctl", 0) < 0){
startedfs = 1;
av[0] = "fs";
av[1] = "-p";
av[2] = 0;
system("/bin/upas/fs", av, -1);
}
switchmb(file, singleton);
top.path = s_copy(root);
for(cp = ctype; cp < ctype+nelem(ctype)-1; cp++)
cp->next = cp+1;
if(singleton != nil){
cur = dosingleton(&top, singleton);
if(cur == nil){
Bprint(&out, "no message\n");
exitfs(0);
}
pcmd(nil, cur);
} else {
cur = ⊤
n = dir2message(&top, reverse);
if(n < 0)
sysfatal("can't read %s", s_to_c(top.path));
Bprint(&out, "%d message%s\n", n, plural(n));
}
notify(catchnote);
prompt = s_new();
for(;;){
s_reset(prompt);
if(cur == &top)
s_append(prompt, ": ");
else {
mkid(prompt, cur);
s_append(prompt, ": ");
}
// leave space at the end of cmd line in case parsecmd needs to
// add a space after a '|' or '!'
if(readline(s_to_c(prompt), cmdline, sizeof(cmdline)-1) == nil)
break;
err = parsecmd(cmdline, &cmd, top.child, cur);
if(err != nil){
Bprint(&out, "!%s\n", err);
continue;
}
if(singleton != nil && cmd.f == icmd){
Bprint(&out, "!illegal command\n");
continue;
}
interrupted = 0;
if(cmd.msgs == nil || cmd.msgs == &top){
x = (*cmd.f)(&cmd, &top);
if(x != nil)
cur = x;
} else for(m = cmd.msgs; m != nil; m = m->cmd){
x = m;
if(cmd.delete){
dcmd(&cmd, x);
// dp acts differently than all other commands
// since its an old lesk idiom that people love.
// it deletes the current message, moves the current
// pointer ahead one and prints.
if(cmd.f == pcmd){
if(x->next == nil){
Bprint(&out, "!address\n");
cur = x;
break;
} else
x = x->next;
}
}
x = (*cmd.f)(&cmd, x);
if(x != nil)
cur = x;
if(interrupted)
break;
if(singleton != nil && (cmd.delete || cmd.f == dcmd))
qcmd(nil, nil);
}
if(doflush)
cur = flushdeleted(cur);
}
qcmd(nil, nil);
}
//
// read the message info
//
Message*
file2message(Message *parent, char *name)
{
Message *m;
String *path;
char *f[10];
m = mallocz(sizeof(Message), 1);
if(m == nil)
return nil;
m->path = path = extendpath(parent->path, name);
m->fileno = atoi(name);
m->info = file2string(path, "info");
lineize(s_to_c(m->info), f, nelem(f));
m->from = f[0];
m->to = f[1];
m->cc = f[2];
m->replyto = f[3];
m->date = f[4];
m->subject = f[5];
m->type = f[6];
m->disposition = f[7];
m->filename = f[8];
m->len = filelen(path, "raw");
if(strstr(m->type, "multipart") != nil || strcmp(m->type, "message/rfc822") == 0)
dir2message(m, 0);
m->parent = parent;
return m;
}
void
freemessage(Message *m)
{
Message *nm, *next;
for(nm = m->child; nm != nil; nm = next){
next = nm->next;
freemessage(nm);
}
s_free(m->path);
s_free(m->info);
free(m);
}
//
// read a directory into a list of messages
//
int
dir2message(Message *parent, int reverse)
{
int i, n, fd, highest, newmsgs;
Dir *d;
Message *first, *last, *m;
fd = open(s_to_c(parent->path), OREAD);
if(fd < 0)
return -1;
// count current entries
first = parent->child;
highest = newmsgs = 0;
for(last = parent->child; last != nil && last->next != nil; last = last->next)
if(last->fileno > highest)
highest = last->fileno;
if(last != nil)
if(last->fileno > highest)
highest = last->fileno;
n = dirreadall(fd, &d);
for(i = 0; i < n; i++){
if((d[i].qid.type & QTDIR) == 0)
continue;
if(atoi(d[i].name) <= highest)
continue;
m = file2message(parent, d[i].name);
if(m == nil)
break;
newmsgs++;
if(reverse){
m->next = first;
if(first != nil)
first->prev = m;
first = m;
} else {
if(first == nil)
first = m;
else
last->next = m;
m->prev = last;
last = m;
}
}
free(d);
close(fd);
parent->child = first;
// renumber and file longest from
i = 1;
longestfrom = 12;
for(m = first; m != nil; m = m->next){
m->id = natural ? m->fileno : i++;
n = strlen(m->from);
if(n > longestfrom)
longestfrom = n;
}
return newmsgs;
}
//
// point directly to a message
//
Message*
dosingleton(Message *parent, char *path)
{
char *p, *np;
Message *m;
// walk down to message and read it
if(strlen(path) < rootlen)
return nil;
if(path[rootlen] != '/')
return nil;
p = path+rootlen+1;
np = strchr(p, '/');
if(np != nil)
*np = 0;
m = file2message(parent, p);
if(m == nil)
return nil;
parent->child = m;
m->id = 1;
// walk down to requested component
while(np != nil){
*np = '/';
np = strchr(np+1, '/');
if(np != nil)
*np = 0;
for(m = m->child; m != nil; m = m->next)
if(strcmp(path, s_to_c(m->path)) == 0)
return m;
if(m == nil)
return nil;
}
return m;
}
//
// read a file into a string
//
String*
file2string(String *dir, char *file)
{
String *s;
int fd, n, m;
s = extendpath(dir, file);
fd = open(s_to_c(s), OREAD);
s_grow(s, 512); /* avoid multiple reads on info files */
s_reset(s);
if(fd < 0)
return s;
for(;;){
n = s->end - s->ptr;
if(n == 0){
s_grow(s, 128);
continue;
}
m = read(fd, s->ptr, n);
if(m <= 0)
break;
s->ptr += m;
if(m < n)
break;
}
s_terminate(s);
close(fd);
return s;
}
//
// get the length of a file
//
int
filelen(String *dir, char *file)
{
String *path;
Dir *d;
int rv;
path = extendpath(dir, file);
d = dirstat(s_to_c(path));
if(d == nil){
s_free(path);
return -1;
}
s_free(path);
rv = d->length;
free(d);
return rv;
}
//
// walk the path name an element
//
String*
extendpath(String *dir, char *name)
{
String *path;
if(strcmp(s_to_c(dir), ".") == 0)
path = s_new();
else {
path = s_copy(s_to_c(dir));
s_append(path, "/");
}
s_append(path, name);
return path;
}
int
cistrncmp(char *a, char *b, int n)
{
while(n-- > 0){
if(tolower(*a++) != tolower(*b++))
return -1;
}
return 0;
}
int
cistrcmp(char *a, char *b)
{
for(;;){
if(tolower(*a) != tolower(*b++))
return -1;
if(*a++ == 0)
break;
}
return 0;
}
char*
nosecs(char *t)
{
char *p;
p = strchr(t, ':');
if(p == nil)
return t;
p = strchr(p+1, ':');
if(p != nil)
*p = 0;
return t;
}
char *months[12] =
{
"jan", "feb", "mar", "apr", "may", "jun",
"jul", "aug", "sep", "oct", "nov", "dec"
};
int
month(char *m)
{
int i;
for(i = 0; i < 12; i++)
if(cistrcmp(m, months[i]) == 0)
return i+1;
return 1;
}
enum
{
Yearsecs= 365*24*60*60
};
void
cracktime(char *d, char *out, int len)
{
char in[64];
char *f[6];
int n;
Tm tm;
long now, then;
char *dtime;
*out = 0;
if(d == nil)
return;
strncpy(in, d, sizeof(in));
in[sizeof(in)-1] = 0;
n = getfields(in, f, 6, 1, " \t\r\n");
if(n != 6){
// unknown style
snprint(out, 16, "%10.10s", d);
return;
}
now = time(0);
memset(&tm, 0, sizeof tm);
if(strchr(f[0], ',') != nil && strchr(f[4], ':') != nil){
// 822 style
tm.year = atoi(f[3])-1900;
tm.mon = month(f[2]);
tm.mday = atoi(f[1]);
dtime = nosecs(f[4]);
then = tm2sec(&tm);
} else if(strchr(f[3], ':') != nil){
// unix style
tm.year = atoi(f[5])-1900;
tm.mon = month(f[1]);
tm.mday = atoi(f[2]);
dtime = nosecs(f[3]);
then = tm2sec(&tm);
} else {
then = now;
tm = *localtime(now);
dtime = "";
}
if(now - then < Yearsecs/2)
snprint(out, len, "%2d/%2.2d %s", tm.mon, tm.mday, dtime);
else
snprint(out, len, "%2d/%2.2d %4d", tm.mon, tm.mday, tm.year+1900);
}
Ctype*
findctype(Message *m)
{
char *p;
char ftype[128];
int n, pfd[2];
Ctype *a, *cp;
static Ctype nulltype = { "", 0, 0, 0 };
static Ctype bintype = { "application/octet-stream", "bin", 0, 0 };
for(cp = ctype; cp; cp = cp->next)
if(strncmp(cp->type, m->type, strlen(cp->type)) == 0)
return cp;
/* use file(1) for any unknown mimetypes
*
* if (strcmp(m->type, bintype.type) != 0)
* return &nulltype;
*/
if(pipe(pfd) < 0)
return &bintype;
*ftype = 0;
switch(fork()){
case -1:
break;
case 0:
close(pfd[1]);
close(0);
dup(pfd[0], 0);
close(1);
dup(pfd[0], 1);
execl("/bin/file", "file", "-m", s_to_c(extendpath(m->path, "body")), nil);
exits(0);
default:
close(pfd[0]);
n = read(pfd[1], ftype, sizeof(ftype));
if(n > 0)
ftype[n] = 0;
close(pfd[1]);
waitpid();
break;
}
if (*ftype=='\0' || (p = strchr(ftype, '/')) == nil)
return &bintype;
*p++ = 0;
a = mallocz(sizeof(Ctype), 1);
a->type = strdup(ftype);
a->ext = strdup(p);
a->display = 0;
a->plumbdest = strdup(ftype);
for(cp = ctype; cp->next; cp = cp->next)
continue;
cp->next = a;
a->next = nil;
return a;
}
void
mkid(String *s, Message *m)
{
char buf[32];
if(m->parent != &top){
mkid(s, m->parent);
s_append(s, ".");
}
sprint(buf, "%d", m->id);
s_append(s, buf);
}
void
snprintheader(char *buf, int len, Message *m)
{
char timebuf[32];
String *id;
char *p, *q;
// create id
id = s_new();
mkid(id, m);
if(*m->from == 0){
// no from
snprint(buf, len, "%-3s %s %6d %s",
s_to_c(id),
m->type,
m->len,
m->filename);
} else if(*m->subject){
q = p = strdup(m->subject);
while(*p == ' ')
p++;
if(strlen(p) > 50)
p[50] = 0;
cracktime(m->date, timebuf, sizeof(timebuf));
snprint(buf, len, "%-3s %c%c%c %6d %11.11s %-*.*s %s",
s_to_c(id),
m->child ? 'H' : ' ',
m->deleted ? 'd' : ' ',
m->stored ? 's' : ' ',
m->len,
timebuf,
longestfrom, longestfrom, m->from,
p);
free(q);
} else {
cracktime(m->date, timebuf, sizeof(timebuf));
snprint(buf, len, "%-3s %c%c%c %6d %11.11s %s",
s_to_c(id),
m->child ? 'H' : ' ',
m->deleted ? 'd' : ' ',
m->stored ? 's' : ' ',
m->len,
timebuf,
m->from);
}
s_free(id);
}
char *spaces = " ";
void
snprintHeader(char *buf, int len, int indent, Message *m)
{
String *id;
char typeid[64];
char *p, *e;
// create id
id = s_new();
mkid(id, m);
e = buf + len;
snprint(typeid, sizeof typeid, "%s %s", s_to_c(id), m->type);
if(indent < 6)
p = seprint(buf, e, "%-32s %-6d ", typeid, m->len);
else
p = seprint(buf, e, "%-64s %-6d ", typeid, m->len);
if(m->filename && *m->filename)
p = seprint(p, e, "(file,%s)", m->filename);
if(m->from && *m->from)
p = seprint(p, e, "(from,%s)", m->from);
if(m->subject && *m->subject)
seprint(p, e, "(subj,%s)", m->subject);
s_free(id);
}
char sstring[256];
// cmd := range cmd ' ' arg-list ;
// range := address
// | address ',' address
// | 'g' search ;
// address := msgno
// | search ;
// msgno := number
// | number '/' msgno ;
// search := '/' string '/'
// | '%' string '%' ;
//
Reprog*
parsesearch(char **pp)
{
char *p, *np;
int c, n;
p = *pp;
c = *p++;
np = strchr(p, c);
if(np != nil){
*np++ = 0;
*pp = np;
} else {
n = strlen(p);
*pp = p + n;
}
if(*p == 0)
p = sstring;
else{
strncpy(sstring, p, sizeof(sstring));
sstring[sizeof(sstring)-1] = 0;
}
return regcomp(p);
}
static char *
num2msg(Message **mp, int sign, int n, Message *first, Message *cur)
{
Message *m;
m = nil;
switch(sign){
case 0:
for(m = first; m != nil; m = m->next)
if(m->id == n)
break;
break;
case -1:
if(cur != &top)
for(m = cur; m != nil && n > 0; n--)
m = m->prev;
break;
case 1:
if(cur == &top){
n--;
cur = first;
}
for(m = cur; m != nil && n > 0; n--)
m = m->next;
break;
}
if(m == nil)
return "address";
*mp = m;
return nil;
}
char*
parseaddr(char **pp, Message *first, Message *cur, Message *unspec, Message **mp)
{
int n;
Message *m;
char *p, *err;
Reprog *prog;
int c, sign;
char buf[256];
*mp = nil;
p = *pp;
if(*p == '+'){
sign = 1;
p++;
*pp = p;
} else if(*p == '-'){
sign = -1;
p++;
*pp = p;
} else
sign = 0;
/*
* TODO: verify & install this.
* make + and - mean +1 and -1, as in ed. then -,.d won't
* delete all messages up to the current one. - geoff
*/
if(sign && (!isascii(*p) || !isdigit(*p))) {
err = num2msg(mp, sign, 1, first, cur);
if (err != nil)
return err;
}
switch(*p){
default:
if(sign){
n = 1;
goto number;
}
*mp = unspec;
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
n = strtoul(p, pp, 10);
if(n == 0){
if(sign)
*mp = cur;
else
*mp = ⊤
break;
}
/* fall through */
number:
err = num2msg(mp, sign, n, first, cur);
if (err != nil)
return err;
break;
case '%':
case '/':
case '?':
c = *p;
prog = parsesearch(pp);
if(prog == nil)
return "badly formed regular expression";
m = nil;
switch(c){
case '%':
for(m = cur == &top ? first : cur->next; m != nil; m = m->next){
if(rawsearch(m, prog))
break;
}
break;
case '/':
for(m = cur == &top ? first : cur->next; m != nil; m = m->next){
snprintheader(buf, sizeof(buf), m);
if(regexec(prog, buf, nil, 0))
break;
}
break;
case '?':
for(m = cur == &top ? nil : cur->prev; m != nil; m = m->prev){
snprintheader(buf, sizeof(buf), m);
if(regexec(prog, buf, nil, 0))
break;
}
break;
}
if(m == nil)
return "search";
*mp = m;
free(prog);
break;
case '$':
for(m = first; m != nil && m->next != nil; m = m->next)
;
*mp = m;
*pp = p+1;
break;
case '.':
*mp = cur;
*pp = p+1;
break;
case ',':
if (*mp == nil)
*mp = first;
*pp = p;
break;
}
if(*mp != nil && **pp == '.'){
(*pp)++;
if((*mp)->child == nil)
return "no sub parts";
return parseaddr(pp, (*mp)->child, (*mp)->child, (*mp)->child, mp);
}
if(**pp == '+' || **pp == '-' || **pp == '/' || **pp == '%')
return parseaddr(pp, first, *mp, *mp, mp);
return nil;
}
//
// search a message for a regular expression match
//
int
rawsearch(Message *m, Reprog *prog)
{
char buf[4096+1];
int i, fd, rv;
String *path;
path = extendpath(m->path, "raw");
fd = open(s_to_c(path), OREAD);
if(fd < 0)
return 0;
// march through raw message 4096 bytes at a time
// with a 128 byte overlap to chain the re search.
rv = 0;
for(;;){
i = read(fd, buf, sizeof(buf)-1);
if(i <= 0)
break;
buf[i] = 0;
if(regexec(prog, buf, nil, 0)){
rv = 1;
break;
}
if(i < sizeof(buf)-1)
break;
if(seek(fd, -128LL, 1) < 0)
break;
}
close(fd);
s_free(path);
return rv;
}
char*
parsecmd(char *p, Cmd *cmd, Message *first, Message *cur)
{
Reprog *prog;
Message *m, *s, *e, **l, *last;
char buf[256];
char *err;
int i, c;
char *q;
static char errbuf[Errlen];
cmd->delete = 0;
l = &cmd->msgs;
*l = nil;
// eat white space
while(*p == ' ')
p++;
// null command is a special case (advance and print)
if(*p == 0){
if(cur == &top){
// special case
m = first;
} else {
// walk to the next message even if we have to go up
m = cur->next;
while(m == nil && cur->parent != nil){
cur = cur->parent;
m = cur->next;
}
}
if(m == nil)
return "address";
*l = m;
m->cmd = nil;
cmd->an = 0;
cmd->f = pcmd;
return nil;
}
// global search ?
if(*p == 'g'){
p++;
// no search string means all messages
if(*p != '/' && *p != '%'){
for(m = first; m != nil; m = m->next){
*l = m;
l = &m->cmd;
*l = nil;
}
} else {
// mark all messages matching this search string
c = *p;
prog = parsesearch(&p);
if(prog == nil)
return "badly formed regular expression";
if(c == '%'){
for(m = first; m != nil; m = m->next){
if(rawsearch(m, prog)){
*l = m;
l = &m->cmd;
*l = nil;
}
}
} else {
for(m = first; m != nil; m = m->next){
snprintheader(buf, sizeof(buf), m);
if(regexec(prog, buf, nil, 0)){
*l = m;
l = &m->cmd;
*l = nil;
}
}
}
free(prog);
}
} else {
// parse an address
s = e = nil;
err = parseaddr(&p, first, cur, cur, &s);
if(err != nil)
return err;
if(*p == ','){
// this is an address range
if(s == &top)
s = first;
p++;
for(last = s; last != nil && last->next != nil; last = last->next)
;
err = parseaddr(&p, first, cur, last, &e);
if(err != nil)
return err;
// select all messages in the range
for(; s != nil; s = s->next){
*l = s;
l = &s->cmd;
*l = nil;
if(s == e)
break;
}
if(s == nil)
return "null address range";
} else {
// single address
if(s != &top){
*l = s;
s->cmd = nil;
}
}
}
// insert a space after '!'s and '|'s
for(q = p; *q; q++)
if(*q != '!' && *q != '|')
break;
if(q != p && *q != ' '){
memmove(q+1, q, strlen(q)+1);
*q = ' ';
}
cmd->an = getfields(p, cmd->av, nelem(cmd->av) - 1, 1, " \t\r\n");
if(cmd->an == 0 || *cmd->av[0] == 0)
cmd->f = pcmd;
else {
// hack to allow all messages to start with 'd'
if(*(cmd->av[0]) == 'd' && *(cmd->av[0]+1) != 0){
cmd->delete = 1;
cmd->av[0]++;
}
// search command table
for(i = 0; cmdtab[i].cmd != nil; i++)
if(strcmp(cmd->av[0], cmdtab[i].cmd) == 0)
break;
if(cmdtab[i].cmd == nil)
return "illegal command";
if(cmdtab[i].args == 0 && cmd->an > 1){
snprint(errbuf, sizeof(errbuf), "%s doesn't take an argument", cmdtab[i].cmd);
return errbuf;
}
cmd->f = cmdtab[i].f;
}
return nil;
}
// inefficient read from standard input
char*
readline(char *prompt, char *line, int len)
{
char *p, *e;
int n;
retry:
interrupted = 0;
Bprint(&out, "%s", prompt);
Bflush(&out);
e = line + len;
for(p = line; p < e; p++){
n = read(0, p, 1);
if(n < 0){
if(interrupted)
goto retry;
return nil;
}
if(n == 0)
return nil;
if(*p == '\n')
break;
}
*p = 0;
return line;
}
void
messagecount(Message *m)
{
int i;
i = 0;
for(; m != nil; m = m->next)
i++;
Bprint(&out, "%d message%s\n", i, plural(i));
}
Message*
aichcmd(Message *m, int indent)
{
char hdr[256];
if(m == &top)
return nil;
snprintHeader(hdr, sizeof(hdr), indent, m);
Bprint(&out, "%s\n", hdr);
for(m = m->child; m != nil; m = m->next)
aichcmd(m, indent+1);
return nil;
}
Message*
Hcmd(Cmd*, Message *m)
{
if(m == &top)
return nil;
aichcmd(m, 0);
return nil;
}
Message*
hcmd(Cmd*, Message *m)
{
char hdr[256];
if(m == &top)
return nil;
snprintheader(hdr, sizeof(hdr), m);
Bprint(&out, "%s\n", hdr);
return nil;
}
Message*
bcmd(Cmd*, Message *m)
{
int i;
Message *om = m;
if(m == &top)
m = top.child;
for(i = 0; i < 10 && m != nil; i++){
hcmd(nil, m);
om = m;
m = m->next;
}
return om;
}
Message*
ncmd(Cmd*, Message *m)
{
if(m == &top)
return m->child;
return m->next;
}
/* turn crlfs into newlines */
int
decrlf(char *buf, int n)
{
char *nl;
int left;
for(nl = buf, left = n;
left >= 2 && (nl = memchr(nl, '\r', left)) != nil;
left = n - (nl - buf))
if(nl[1] == '\n'){ /* newline? delete the cr */
--n; /* portion left is about to get smaller */
memmove(nl, nl+1, n - (nl - buf));
}else
nl++;
return n;
}
int
printpart(String *s, char *part)
{
char buf[4096];
int n, fd, tot;
String *path;
path = extendpath(s, part);
fd = open(s_to_c(path), OREAD);
s_free(path);
if(fd < 0){
fprint(2, "!message disappeared\n");
return 0;
}
tot = 0;
while((n = read(fd, buf, sizeof(buf))) > 0){
if(interrupted)
break;
n = decrlf(buf, n);
if(n > 0 && Bwrite(&out, buf, n) <= 0)
break;
tot += n;
}
close(fd);
return tot;
}
int
printhtml(Message *m)
{
Cmd c;
c.an = 3;
c.av[1] = "/bin/htmlfmt";
c.av[2] = "-l 40 -cutf-8";
Bprint(&out, "!%s\n", c.av[1]);
Bflush(&out);
pipecmd(&c, m);
return 0;
}
Message*
Pcmd(Cmd*, Message *m)
{
if(m == &top)
return ⊤
if(m->parent == &top)
printpart(m->path, "unixheader");
printpart(m->path, "raw");
return m;
}
void
compress(char *p)
{
char *np;
int last;
last = ' ';
for(np = p; *p; p++){
if(*p != ' ' || last != ' '){
last = *p;
*np++ = last;
}
}
*np = 0;
}
/*
* find the best alternative part.
*
* turkeys have started emitting empty text/plain parts,
* with the actual content in a text/html part, which complicates the choice.
*
* bigger turkeys emit a tiny base64-encoded text/plain part,
* a small base64-encoded text/html part, and the real content is in
* a text/calendar part.
*
* the magic lengths are empirically derived.
* as turkeys devolve and mutate, this will only get worse.
*/
static Message*
bestalt(Message *m)
{
Message *nm, *realplain, *realhtml, *realcal;
Ctype *cp;
realplain = realhtml = realcal = nil;
for(nm = m->child; nm != nil; nm = nm->next){
cp = findctype(nm);
if(cp->ext != nil)
if(strncmp(cp->ext, "txt", 3) == 0 && nm->len >= 88)
realplain = nm;
else if(strncmp(cp->ext, "html", 3) == 0 &&
nm->len >= 670)
realhtml = nm;
else if(strncmp(cp->ext, "ics", 3) == 0)
realcal = nm;
}
if(realplain == nil && realhtml == nil && realcal)
return realcal; /* super-turkey */
else if(realplain == nil && realhtml)
return realhtml; /* regular turkey */
else
return realplain;
}
static void
pralt(Message *m)
{
Message *nm;
Ctype *cp;
nm = bestalt(m);
if(nm == nil)
/* no winner. print the first displayable part. */
for(nm = m->child; nm != nil; nm = nm->next){
cp = findctype(nm);
if(cp->display)
break;
}
if(nm != nil)
pcmd(nil, nm);
else
hcmd(nil, m);
}
Message*
pcmd(Cmd*, Message *m)
{
Message *nm;
Ctype *cp;
String *s;
char buf[128];
if(m == nil)
return m;
if(m == &top)
return ⊤
if(m->parent == &top)
printpart(m->path, "unixheader");
if(printpart(m->path, "header") > 0)
Bprint(&out, "\n");
cp = findctype(m);
if(cp->display){
if(strcmp(m->type, "text/html") == 0)
printhtml(m);
else
printpart(m->path, "body");
} else if(strcmp(m->type, "multipart/alternative") == 0)
pralt(m);
else if(strncmp(m->type, "multipart/", 10) == 0){
nm = m->child;
if(nm != nil){
// always print first part
pcmd(nil, nm);
for(nm = nm->next; nm != nil; nm = nm->next){
s = rooted(s_clone(nm->path));
cp = findctype(nm);
snprintHeader(buf, sizeof buf, -1, nm);
compress(buf);
if(strcmp(nm->disposition, "inline") == 0){
if(cp->ext != nil)
Bprint(&out, "\n--- %s %s/body.%s\n\n",
buf, s_to_c(s), cp->ext);
else
Bprint(&out, "\n--- %s %s/body\n\n",
buf, s_to_c(s));
pcmd(nil, nm);
} else {
if(cp->ext != nil)
Bprint(&out, "\n!--- %s %s/body.%s\n",
buf, s_to_c(s), cp->ext);
else
Bprint(&out, "\n!--- %s %s/body\n",
buf, s_to_c(s));
}
s_free(s);
}
} else {
hcmd(nil, m);
}
} else if(strcmp(m->type, "message/rfc822") == 0){
pcmd(nil, m->child);
} else if(plumb(m, cp) >= 0)
Bprint(&out, "\n!--- using plumber to display message of type %s\n", m->type);
else
Bprint(&out, "\n!--- cannot display messages of type %s\n", m->type);
return m;
}
void
printpartindented(String *s, char *part, char *indent)
{
char *p;
String *path;
Biobuf *b;
path = extendpath(s, part);
b = Bopen(s_to_c(path), OREAD);
s_free(path);
if(b == nil){
fprint(2, "!message disappeared\n");
return;
}
while((p = Brdline(b, '\n')) != nil){
if(interrupted)
break;
p[Blinelen(b)-1] = 0;
if(Bprint(&out, "%s%s\n", indent, p) < 0)
break;
}
Bprint(&out, "\n");
Bterm(b);
}
Message*
quotecmd(Cmd*, Message *m)
{
Message *nm;
Ctype *cp;
if(m == &top)
return ⊤
Bprint(&out, "\n");
if(m->from != nil && *m->from)
Bprint(&out, "On %s, %s wrote:\n", m->date, m->from);
cp = findctype(m);
if(cp->display){
printpartindented(m->path, "body", "> ");
} else if(strcmp(m->type, "multipart/alternative") == 0){
for(nm = m->child; nm != nil; nm = nm->next){
cp = findctype(nm);
if(cp->ext != nil && strncmp(cp->ext, "txt", 3) == 0)
break;
}
if(nm == nil)
for(nm = m->child; nm != nil; nm = nm->next){
cp = findctype(nm);
if(cp->display)
break;
}
if(nm != nil)
quotecmd(nil, nm);
} else if(strncmp(m->type, "multipart/", 10) == 0){
nm = m->child;
if(nm != nil){
cp = findctype(nm);
if(cp->display || strncmp(m->type, "multipart/", 10) == 0)
quotecmd(nil, nm);
}
}
return m;
}
// really delete messages
Message*
flushdeleted(Message *cur)
{
Message *m, **l;
char buf[1024], *p, *e, *msg;
int deld, n, fd;
int i;
doflush = 0;
deld = 0;
fd = open("/mail/fs/ctl", ORDWR);
if(fd < 0){
fprint(2, "!can't delete mail, opening /mail/fs/ctl: %r\n");
exitfs(0);
}
e = &buf[sizeof(buf)];
p = seprint(buf, e, "delete %s", mbname);
n = 0;
for(l = &top.child; *l != nil;){
m = *l;
if(!m->deleted){
l = &(*l)->next;
continue;
}
// don't return a pointer to a deleted message
if(m == cur)
cur = m->next;
deld++;
msg = strrchr(s_to_c(m->path), '/');
if(msg == nil)
msg = s_to_c(m->path);
else
msg++;
if(e-p < 10){
write(fd, buf, p-buf);
n = 0;
p = seprint(buf, e, "delete %s", mbname);
}
p = seprint(p, e, " %s", msg);
n++;
// unchain and free
*l = m->next;
if(m->next)
m->next->prev = m->prev;
freemessage(m);
}
if(n)
write(fd, buf, p-buf);
close(fd);
if(deld)
Bprint(&out, "!%d message%s deleted\n", deld, plural(deld));
// renumber
i = 1;
for(m = top.child; m != nil; m = m->next)
m->id = natural ? m->fileno : i++;
// if we're out of messages, go back to first
// if no first, return the fake first
if(cur == nil){
if(top.child)
return top.child;
else
return ⊤
}
return cur;
}
Message*
qcmd(Cmd*, Message*)
{
flushdeleted(nil);
if(didopen)
closemb();
Bflush(&out);
exitfs(0);
return nil; // not reached
}
Message*
ycmd(Cmd*, Message *m)
{
doflush = 1;
return icmd(nil, m);
}
Message*
xcmd(Cmd*, Message*)
{
exitfs(0);
return nil; // not reached
}
Message*
eqcmd(Cmd*, Message *m)
{
if(m == &top)
Bprint(&out, "0\n");
else
Bprint(&out, "%d\n", m->id);
return nil;
}
Message*
dcmd(Cmd*, Message *m)
{
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
while(m->parent != &top)
m = m->parent;
m->deleted = 1;
return m;
}
Message*
ucmd(Cmd*, Message *m)
{
if(m == &top)
return nil;
while(m->parent != &top)
m = m->parent;
if(m->deleted < 0)
Bprint(&out, "!can't undelete, already flushed\n");
m->deleted = 0;
return m;
}
Message*
icmd(Cmd*, Message *m)
{
int n;
n = dir2message(&top, reverse);
if(n > 0)
Bprint(&out, "%d new message%s\n", n, plural(n));
return m;
}
Message*
helpcmd(Cmd*, Message *m)
{
int i;
Bprint(&out, "Commands are of the form [<range>] <command> [args]\n");
Bprint(&out, "<range> := <addr> | <addr>','<addr>| 'g'<search>\n");
Bprint(&out, "<addr> := '.' | '$' | '^' | <number> | <search> | <addr>'+'<addr> | <addr>'-'<addr>\n");
Bprint(&out, "<search> := '/'<regexp>'/' | '?'<regexp>'?' | '%%'<regexp>'%%'\n");
Bprint(&out, "<command> :=\n");
for(i = 0; cmdtab[i].cmd != nil; i++)
Bprint(&out, "%s\n", cmdtab[i].help);
return m;
}
int
tomailer(char **av)
{
Waitmsg *w;
int pid, i;
// start the mailer and get out of the way
switch(pid = fork()){
case -1:
fprint(2, "can't fork: %r\n");
return -1;
case 0:
Bprint(&out, "!/bin/upas/marshal");
for(i = 1; av[i]; i++)
Bprint(&out, " %q", av[i]);
Bprint(&out, "\n");
Bflush(&out);
av[0] = "marshal";
chdir(wd);
exec("/bin/upas/marshal", av);
fprint(2, "couldn't exec /bin/upas/marshal\n");
exits(0);
default:
w = wait();
if(w == nil){
if(interrupted)
postnote(PNPROC, pid, "die");
waitpid();
return -1;
}
if(w->msg[0]){
fprint(2, "mailer failed: %s\n", w->msg);
free(w);
return -1;
}
free(w);
Bprint(&out, "!\n");
break;
}
return 0;
}
//
// like tokenize but obey "" quoting
//
int
tokenize822(char *str, char **args, int max)
{
int na;
int intok = 0, inquote = 0;
if(max <= 0)
return 0;
for(na=0; ;str++)
switch(*str) {
case ' ':
case '\t':
if(inquote)
goto Default;
/* fall through */
case '\n':
*str = 0;
if(!intok)
continue;
intok = 0;
if(na < max)
continue;
/* fall through */
case 0:
return na;
case '"':
inquote ^= 1;
/* fall through */
Default:
default:
if(intok)
continue;
args[na++] = str;
intok = 1;
}
}
/* return reply-to address & set *nmp to corresponding Message */
static char *
getreplyto(Message *m, Message **nmp)
{
Message *nm;
for(nm = m; nm != ⊤ nm = nm->parent)
if(*nm->replyto != 0)
break;
*nmp = nm;
return nm? nm->replyto: nil;
}
Message*
rcmd(Cmd *c, Message *m)
{
char *addr;
char *av[128];
int i, ai = 1;
String *from, *rpath, *path = nil, *subject = nil;
Message *nm;
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
addr = getreplyto(m, &nm);
if(addr == nil){
Bprint(&out, "!no reply address\n");
return nil;
}
if(nm == &top){
print("!noone to reply to\n");
return nil;
}
for(nm = m; nm != ⊤ nm = nm->parent){
if(*nm->subject){
av[ai++] = "-s";
subject = addrecolon(nm->subject);
av[ai++] = s_to_c(subject);
break;
}
}
av[ai++] = "-R";
rpath = rooted(s_clone(m->path));
av[ai++] = s_to_c(rpath);
if(strchr(c->av[0], 'f') != nil){
fcmd(c, m);
av[ai++] = "-F";
}
if(strchr(c->av[0], 'R') != nil){
av[ai++] = "-t";
av[ai++] = "message/rfc822";
av[ai++] = "-A";
path = rooted(extendpath(m->path, "raw"));
av[ai++] = s_to_c(path);
}
for(i = 1; i < c->an && ai < nelem(av)-1; i++)
av[ai++] = c->av[i];
from = s_copy(addr);
ai += tokenize822(s_to_c(from), &av[ai], nelem(av) - ai);
av[ai] = 0;
if(tomailer(av) < 0)
m = nil;
s_free(path);
s_free(rpath);
s_free(subject);
s_free(from);
return m;
}
Message*
mcmd(Cmd *c, Message *m)
{
char **av;
int i, ai;
String *path;
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
if(c->an < 2){
fprint(2, "!usage: M list-of addresses\n");
return nil;
}
ai = 1;
av = malloc(sizeof(char*)*(c->an + 8));
av[ai++] = "-t";
if(m->parent == &top)
av[ai++] = "message/rfc822";
else
av[ai++] = "mime";
av[ai++] = "-A";
path = rooted(extendpath(m->path, "raw"));
av[ai++] = s_to_c(path);
if(strchr(c->av[0], 'M') == nil)
av[ai++] = "-n";
for(i = 1; i < c->an; i++)
av[ai++] = c->av[i];
av[ai] = 0;
if(tomailer(av) < 0)
m = nil;
if(path != nil)
s_free(path);
free(av);
return m;
}
Message*
acmd(Cmd *c, Message *m)
{
char *av[128];
int i, ai = 1;
String *from, *rpath, *path = nil, *subject = nil;
String *to, *cc;
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
if(*m->subject){
av[ai++] = "-s";
subject = addrecolon(m->subject);
av[ai++] = s_to_c(subject);
}
av[ai++] = "-R";
rpath = rooted(s_clone(m->path));
av[ai++] = s_to_c(rpath);
if(strchr(c->av[0], 'A') != nil){
av[ai++] = "-t";
av[ai++] = "message/rfc822";
av[ai++] = "-A";
path = rooted(extendpath(m->path, "raw"));
av[ai++] = s_to_c(path);
}
for(i = 1; i < c->an && ai < nelem(av)-1; i++)
av[ai++] = c->av[i];
from = s_copy(m->from);
ai += tokenize822(s_to_c(from), &av[ai], nelem(av) - ai);
to = s_copy(m->to);
ai += tokenize822(s_to_c(to), &av[ai], nelem(av) - ai);
cc = s_copy(m->cc);
ai += tokenize822(s_to_c(cc), &av[ai], nelem(av) - ai);
av[ai] = 0;
if(tomailer(av) < 0)
m = nil;
s_free(path);
s_free(rpath);
s_free(subject);
s_free(from);
s_free(to);
s_free(cc);
return m;
}
String *
relpath(char *path, String *to)
{
if (*path=='/' || strncmp(path, "./", 2) == 0
|| strncmp(path, "../", 3) == 0) {
to = s_append(to, path);
} else if(mbpath) {
to = s_append(to, s_to_c(mbpath));
to->ptr = strrchr(to->base, '/')+1;
s_append(to, path);
}
return to;
}
int
appendtofile(Message *m, char *part, char *base, int mbox)
{
String *file, *h;
int in, out, rv;
file = extendpath(m->path, part);
in = open(s_to_c(file), OREAD);
if(in < 0){
fprint(2, "!message disappeared\n");
return -1;
}
s_reset(file);
relpath(base, file);
if(sysisdir(s_to_c(file))){
s_append(file, "/");
if(m->filename && strchr(m->filename, '/') == nil)
s_append(file, m->filename);
else {
s_append(file, "att.XXXXXXXXXXX");
mktemp(s_to_c(file));
}
}
if(mbox)
out = open(s_to_c(file), OWRITE);
else
out = open(s_to_c(file), OWRITE|OTRUNC);
if(out < 0){
out = create(s_to_c(file), OWRITE, 0666);
if(out < 0){
fprint(2, "!can't open %s: %r\n", s_to_c(file));
close(in);
s_free(file);
return -1;
}
}
if(mbox)
seek(out, 0, 2);
// put on a 'From ' line
if(mbox){
while(m->parent != &top)
m = m->parent;
h = file2string(m->path, "unixheader");
fprint(out, "%s", s_to_c(h));
s_free(h);
}
// copy the message escaping what we have to ad adding newlines if we have to
if(mbox)
rv = appendfiletombox(in, out);
else
rv = appendfiletofile(in, out);
close(in);
close(out);
if(rv >= 0)
print("!saved in %s\n", s_to_c(file));
s_free(file);
return rv;
}
Message*
scmd(Cmd *c, Message *m)
{
char *file;
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
switch(c->an){
case 1:
file = "stored";
break;
case 2:
file = c->av[1];
break;
default:
fprint(2, "!usage: s filename\n");
return nil;
}
if(appendtofile(m, "raw", file, 1) < 0)
return nil;
m->stored = 1;
return m;
}
Message*
wcmd(Cmd *c, Message *m)
{
char *file;
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
switch(c->an){
case 2:
file = c->av[1];
break;
case 1:
if(*m->filename == 0){
fprint(2, "!usage: w filename\n");
return nil;
}
file = strrchr(m->filename, '/');
if(file != nil)
file++;
else
file = m->filename;
break;
default:
fprint(2, "!usage: w filename\n");
return nil;
}
if(appendtofile(m, "body", file, 0) < 0)
return nil;
m->stored = 1;
return m;
}
char *specialfile[] =
{
"pipeto",
"pipefrom",
"L.mbox",
"forward",
"names"
};
// return 1 if this is a special file
static int
special(String *s)
{
char *p;
int i;
p = strrchr(s_to_c(s), '/');
if(p == nil)
p = s_to_c(s);
else
p++;
for(i = 0; i < nelem(specialfile); i++)
if(strcmp(p, specialfile[i]) == 0)
return 1;
return 0;
}
// open the folder using the recipients account name
static String*
foldername(char *rcvr)
{
char *p;
int c;
String *file;
Dir *d;
int scarey;
file = s_new();
mboxpath("f", user, file, 0);
d = dirstat(s_to_c(file));
// if $mail/f exists, store there, otherwise in $mail
s_restart(file);
if(d && d->qid.type == QTDIR){
scarey = 0;
s_append(file, "f/");
} else {
scarey = 1;
}
free(d);
p = strrchr(rcvr, '!');
if(p != nil)
rcvr = p+1;
while(*rcvr && *rcvr != '@'){
c = *rcvr++;
if(c == '/')
c = '_';
s_putc(file, c);
}
s_terminate(file);
if(scarey && special(file)){
fprint(2, "!won't overwrite %s\n", s_to_c(file));
s_free(file);
return nil;
}
return file;
}
Message*
fcmd(Cmd *c, Message *m)
{
String *folder;
if(c->an > 1){
fprint(2, "!usage: f takes no arguments\n");
return nil;
}
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
folder = foldername(m->from);
if(folder == nil)
return nil;
if(appendtofile(m, "raw", s_to_c(folder), 1) < 0){
s_free(folder);
return nil;
}
s_free(folder);
m->stored = 1;
return m;
}
void
system(char *cmd, char **av, int in)
{
int pid;
switch(pid=fork()){
case -1:
return;
case 0:
if(in >= 0){
close(0);
dup(in, 0);
close(in);
}
if(wd[0] != 0)
chdir(wd);
exec(cmd, av);
fprint(2, "!couldn't exec %s\n", cmd);
exits(0);
default:
if(in >= 0)
close(in);
while(waitpid() < 0){
if(!interrupted)
break;
postnote(PNPROC, pid, "die");
continue;
}
break;
}
}
Message*
bangcmd(Cmd *c, Message *m)
{
char cmd[4*1024];
char *p, *e;
char *av[4];
int i;
cmd[0] = 0;
p = cmd;
e = cmd+sizeof(cmd);
for(i = 1; i < c->an; i++)
p = seprint(p, e, "%s ", c->av[i]);
av[0] = "rc";
av[1] = "-c";
av[2] = cmd;
av[3] = 0;
system("/bin/rc", av, -1);
Bprint(&out, "!\n");
return m;
}
Message*
xpipecmd(Cmd *c, Message *m, char *part)
{
char cmd[128];
char *p, *e;
char *av[4];
String *path;
int i, fd;
if(c->an < 2){
Bprint(&out, "!usage: | cmd\n");
return nil;
}
if(m == &top){
Bprint(&out, "!address\n");
return nil;
}
path = extendpath(m->path, part);
fd = open(s_to_c(path), OREAD);
s_free(path);
if(fd < 0){ // compatibility with older upas/fs
path = extendpath(m->path, "raw");
fd = open(s_to_c(path), OREAD);
s_free(path);
}
if(fd < 0){
fprint(2, "!message disappeared\n");
return nil;
}
p = cmd;
e = cmd+sizeof(cmd);
cmd[0] = 0;
for(i = 1; i < c->an; i++)
p = seprint(p, e, "%s ", c->av[i]);
av[0] = "rc";
av[1] = "-c";
av[2] = cmd;
av[3] = 0;
system("/bin/rc", av, fd); /* system closes fd */
Bprint(&out, "!\n");
return m;
}
Message*
pipecmd(Cmd *c, Message *m)
{
return xpipecmd(c, m, "body");
}
Message*
rpipecmd(Cmd *c, Message *m)
{
return xpipecmd(c, m, "rawunix");
}
void
closemb(void)
{
int fd;
fd = open("/mail/fs/ctl", ORDWR);
if(fd < 0)
sysfatal("can't open /mail/fs/ctl: %r");
// close current mailbox
if(*mbname && strcmp(mbname, "mbox") != 0)
fprint(fd, "close %s", mbname);
close(fd);
}
int
switchmb(char *file, char *singleton)
{
char *p;
int n, fd;
String *path;
char buf[256];
// if the user didn't say anything and there
// is an mbox mounted already, use that one
// so that the upas/fs -fdefault default is honored.
if(file
|| (singleton && access(singleton, 0)<0)
|| (!singleton && access("/mail/fs/mbox", 0)<0)){
if(file == nil)
file = "mbox";
// close current mailbox
closemb();
didopen = 1;
fd = open("/mail/fs/ctl", ORDWR);
if(fd < 0)
sysfatal("can't open /mail/fs/ctl: %r");
path = s_new();
// get an absolute path to the mail box
if(strncmp(file, "./", 2) == 0){
// resolve path here since upas/fs doesn't know
// our working directory
if(getwd(buf, sizeof(buf)-strlen(file)) == nil){
fprint(2, "!can't get working directory: %s\n", buf);
return -1;
}
s_append(path, buf);
s_append(path, file+1);
} else {
mboxpath(file, user, path, 0);
}
// make up a handle to use when talking to fs
p = strrchr(file, '/');
if(p == nil){
// if its in the mailbox directory, just use the name
strncpy(mbname, file, sizeof(mbname));
mbname[sizeof(mbname)-1] = 0;
} else {
// make up a mailbox name
p = strrchr(s_to_c(path), '/');
p++;
if(*p == 0){
fprint(2, "!bad mbox name");
return -1;
}
strncpy(mbname, p, sizeof(mbname));
mbname[sizeof(mbname)-1] = 0;
n = strlen(mbname);
if(n > Elemlen-12)
n = Elemlen-12;
sprint(mbname+n, "%ld", time(0));
}
if(fprint(fd, "open %s %s", s_to_c(path), mbname) < 0){
fprint(2, "!can't 'open %s %s': %r\n", file, mbname);
s_free(path);
return -1;
}
close(fd);
}else
if (singleton && access(singleton, 0)==0
&& strncmp(singleton, "/mail/fs/", 9) == 0){
if ((p = strchr(singleton +10, '/')) == nil){
fprint(2, "!bad mbox name");
return -1;
}
n = p-(singleton+9);
strncpy(mbname, singleton+9, n);
mbname[n+1] = 0;
path = s_reset(nil);
mboxpath(mbname, user, path, 0);
}else{
path = s_reset(nil);
mboxpath("mbox", user, path, 0);
strcpy(mbname, "mbox");
}
snprint(root, sizeof root, "/mail/fs/%s", mbname);
if(getwd(wd, sizeof(wd)) == 0)
wd[0] = 0;
if(singleton == nil && chdir(root) >= 0)
strcpy(root, ".");
rootlen = strlen(root);
if(mbpath != nil)
s_free(mbpath);
mbpath = path;
return 0;
}
// like tokenize but for into lines
int
lineize(char *s, char **f, int n)
{
int i;
for(i = 0; *s && i < n; i++){
f[i] = s;
s = strchr(s, '\n');
if(s == nil)
break;
*s++ = 0;
}
return i;
}
String*
rooted(String *s)
{
static char buf[256];
if(strcmp(root, ".") != 0)
return s;
snprint(buf, sizeof(buf), "/mail/fs/%s/%s", mbname, s_to_c(s));
s_free(s);
return s_copy(buf);
}
int
plumb(Message *m, Ctype *cp)
{
String *s;
Plumbmsg *pm;
static int fd = -2;
if(cp->plumbdest == nil)
return -1;
if(fd < -1)
fd = plumbopen("send", OWRITE);
if(fd < 0)
return -1;
pm = mallocz(sizeof(Plumbmsg), 1);
pm->src = strdup("mail");
if(*cp->plumbdest)
pm->dst = strdup(cp->plumbdest);
pm->wdir = nil;
pm->type = strdup("text");
pm->ndata = -1;
s = rooted(extendpath(m->path, "body"));
if(cp->ext != nil){
s_append(s, ".");
s_append(s, cp->ext);
}
pm->data = strdup(s_to_c(s));
s_free(s);
plumbsend(fd, pm);
plumbfree(pm);
return 0;
}
void
regerror(char*)
{
}
String*
addrecolon(char *s)
{
String *str;
if(cistrncmp(s, "re:", 3) != 0){
str = s_copy("Re: ");
s_append(str, s);
} else
str = s_copy(s);
return str;
}
void
exitfs(char *rv)
{
if(startedfs)
unmount(nil, "/mail/fs");
chdir("/sys/src/cmd/upas/ned"); /* for profiling? */
exits(rv);
}