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#include <u.h>
#include <libc.h>
#include <auth.h>
#include <fcall.h>
#include <thread.h>
#include <plumb.h>
#include <9p.h>
#include "dat.h"
#include "fns.h"
static int plumbsendfd;
static int plumbwebfd;
static Channel *plumbchan;
static void plumbwebproc(void*);
static void plumbwebthread(void*);
static void plumbsendproc(void*);
void
plumbinit(void)
{
plumbsendfd = plumbopen("send", OWRITE|OCEXEC);
plumbwebfd = plumbopen("web", OREAD|OCEXEC);
}
void
plumbstart(void)
{
plumbchan = chancreate(sizeof(Plumbmsg*), 0);
proccreate(plumbwebproc, nil, STACK);
threadcreate(plumbwebthread, nil, STACK);
}
static void
plumbwebthread(void*)
{
char *base;
Plumbmsg *m;
for(;;){
m = recvp(plumbchan);
if(m == nil)
threadexits(nil);
base = plumblookup(m->attr, "baseurl");
if(base == nil)
base = m->wdir;
plumburl(m->data, base);
plumbfree(m);
}
}
static void
plumbwebproc(void*)
{
Plumbmsg *m;
for(;;){
m = plumbrecv(plumbwebfd);
sendp(plumbchan, m);
if(m == nil)
threadexits(nil);
}
}
static void
addattr(Plumbmsg *m, char *name, char *value)
{
Plumbattr *a;
a = malloc(sizeof(Plumbattr));
a->name = name;
a->value = value;
a->next = m->attr;
m->attr = a;
}
static void
freeattrs(Plumbmsg *m)
{
Plumbattr *a, *next;
a = m->attr;
while(a != nil) {
next = a->next;
free(a);
a = next;
}
}
static struct
{
char *ctype;
char *ext;
}
ctypes[] =
{
{ "application/msword", "doc" },
{ "application/pdf", "pdf" },
{ "application/postscript", "ps" },
{ "application/rtf", "rtf" },
{ "image/gif", "gif" },
{ "image/jpeg", "jpg" },
{ "image/png", "png" },
{ "image/ppm", "ppm" },
{ "image/tiff", "tiff" },
{ "text/html", "html" },
{ "text/plain", "txt" },
{ "text/xml", "xml" },
};
void
replumb(Client *c)
{
int i;
Plumbmsg *m;
char name[128], *ctype, *ext, *p;
if(!c->plumbed)
return;
m = emalloc(sizeof(Plumbmsg));
m->src = "webfs";
m->dst = nil;
m->wdir = "/";
m->type = "text";
m->attr = nil;
addattr(m, "url", c->url->url);
ctype = c->contenttype;
ext = nil;
if(ctype != nil) {
addattr(m, "content-type", ctype);
for(i = 0; i < nelem(ctypes); i++) {
if(strcmp(ctype, ctypes[i].ctype) == 0) {
ext = ctypes[i].ext;
break;
}
}
}
if(ext == nil) {
p = strrchr(c->url->url, '/');
if(p != nil)
p = strrchr(p+1, '.');
if(p != nil && strlen(p) <= 5)
ext = p+1;
else
ext = "txt"; /* punt */
}
c->ext = ext;
if(0)fprint(2, "content type %s -> extension .%s\n", ctype, ext);
m->ndata = snprint(name, sizeof name, "/mnt/web/%d/body.%s", c->num, ext);
m->data = estrdup(name);
proccreate(plumbsendproc, m, STACK); /* separate proc to avoid a deadlock */
}
static void
plumbsendproc(void *x)
{
Plumbmsg *m;
m = x;
plumbsend(plumbsendfd, m);
freeattrs(m);
free(m->data);
free(m);
}
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