Пример #1
0
void
netdbBinaryExchange(StoreEntry * s)
{
    http_reply *reply = s->mem_obj->reply;
#if USE_ICMP
    netdbEntry *n;
    int i;
    int j;
    int rec_sz;
    char *buf;
    struct in_addr addr;
    storeBuffer(s);
    httpReplyReset(reply);
    httpReplySetHeaders(reply, HTTP_OK, "OK", NULL, -1, squid_curtime, -1);
    httpReplySwapOut(reply, s);
    rec_sz = 0;
    rec_sz += 1 + sizeof(addr.s_addr);
    rec_sz += 1 + sizeof(int);
    rec_sz += 1 + sizeof(int);
    buf = memAllocate(MEM_4K_BUF);
    i = 0;
    hash_first(addr_table);
    while ((n = (netdbEntry *) hash_next(addr_table))) {
        if (0.0 == n->rtt)
            continue;
        if (n->rtt > 60000)	/* RTT > 1 MIN probably bogus */
            continue;
        if (!safe_inet_addr(n->network, &addr))
            continue;
        buf[i++] = (char) NETDB_EX_NETWORK;
        xmemcpy(&buf[i], &addr.s_addr, sizeof(addr.s_addr));
        i += sizeof(addr.s_addr);
        buf[i++] = (char) NETDB_EX_RTT;
        j = htonl((int) (n->rtt * 1000));
        xmemcpy(&buf[i], &j, sizeof(int));
        i += sizeof(int);
        buf[i++] = (char) NETDB_EX_HOPS;
        j = htonl((int) (n->hops * 1000));
        xmemcpy(&buf[i], &j, sizeof(int));
        i += sizeof(int);
        if (i + rec_sz > 4096) {
            storeAppend(s, buf, i);
            i = 0;
        }
    }
    if (i > 0) {
        storeAppend(s, buf, i);
        i = 0;
    }
    assert(0 == i);
    storeBufferFlush(s);
    memFree(buf, MEM_4K_BUF);
#else
    httpReplyReset(reply);
    httpReplySetHeaders(reply, HTTP_BAD_REQUEST, "Bad Request", NULL, -1, -1, -1);
    httpReplySwapOut(reply, s);
    storeAppendPrintf(s, "NETDB support not compiled into this Squid cache.\n");
#endif
    storeComplete(s);
}
Пример #2
0
/* allocates and initializes an error response */
HttpReply *
errorBuildReply(ErrorState * err)
{
    HttpReply *rep = httpReplyCreate();
    const char *name = errorPageName(err->page_id);
    /* no LMT for error pages; error pages expire immediately */
    if (strchr(name, ':')) {
	/* Redirection */
	httpReplySetHeaders(rep, HTTP_MOVED_TEMPORARILY, NULL, "text/html", 0, -1, -1);
	if (err->request) {
	    char *quoted_url = rfc1738_escape_part(urlCanonical(err->request));
	    httpHeaderPutStrf(&rep->header, HDR_LOCATION, name, quoted_url);
	}
	httpHeaderPutStrf(&rep->header, HDR_X_SQUID_ERROR, "%d %s", err->http_status, "Access Denied");
    } else {
	MemBuf content = errorBuildContent(err);
	httpReplySetHeaders(rep, err->http_status, NULL, "text/html", content.size, -1, -1);
	/*
	 * include some information for downstream caches. Implicit
	 * replaceable content. This isn't quite sufficient. xerrno is not
	 * necessarily meaningful to another system, so we really should
	 * expand it. Additionally, we should identify ourselves. Someone
	 * might want to know. Someone _will_ want to know OTOH, the first
	 * X-CACHE-MISS entry should tell us who.
	 */
	httpHeaderPutStrf(&rep->header, HDR_X_SQUID_ERROR, "%s %d",
	    name, err->xerrno);
	httpBodySet(&rep->body, &content);
	/* do not memBufClean() the content, it was absorbed by httpBody */
    }
    return rep;
}
Пример #3
0
static void
mimeLoadIconFile(const char *icon)
{
    int fd;
    int n;
    request_flags flags;
    struct stat sb;
    StoreEntry *e;
    LOCAL_ARRAY(char, path, MAXPATHLEN);
    LOCAL_ARRAY(char, url, MAX_URL);
    char *buf;
    const char *type = mimeGetContentType(icon);
    HttpReply *reply;
    if (type == NULL)
	fatal("Unknown icon format while reading mime.conf\n");
    buf = internalLocalUri("/squid-internal-static/icons/", icon);
    xstrncpy(url, buf, MAX_URL);
    if (storeGetPublic(url, METHOD_GET))
	return;
    snprintf(path, MAXPATHLEN, "%s/%s", Config.icons.directory, icon);
    fd = file_open(path, O_RDONLY);
    if (fd < 0) {
	debug(25, 0) ("mimeLoadIconFile: %s: %s\n", path, xstrerror());
	return;
    }
    if (fstat(fd, &sb) < 0) {
	debug(50, 0) ("mimeLoadIconFile: FD %d: fstat: %s\n", fd, xstrerror());
	return;
    }
    flags = null_request_flags;
    flags.cachable = 1;
    e = storeCreateEntry(url,
	url,
	flags,
	METHOD_GET);
    assert(e != NULL);
    storeSetPublicKey(e);
    storeBuffer(e);
    e->mem_obj->request = requestLink(urlParse(METHOD_GET, url));
    httpReplyReset(reply = e->mem_obj->reply);
    httpReplySetHeaders(reply, 1.0, HTTP_OK, NULL,
	type, (int) sb.st_size, sb.st_mtime, -1);
    reply->cache_control = httpHdrCcCreate();
    httpHdrCcSetMaxAge(reply->cache_control, 86400);
    httpHeaderPutCc(&reply->header, reply->cache_control);
    httpReplySwapOut(reply, e);
    reply->hdr_sz = e->mem_obj->inmem_hi;	/* yuk */
    /* read the file into the buffer and append it to store */
    buf = memAllocate(MEM_4K_BUF);
    while ((n = read(fd, buf, 4096)) > 0)
	storeAppend(e, buf, n);
    file_close(fd);
    EBIT_SET(e->flags, ENTRY_SPECIAL);
    storeBufferFlush(e);
    storeComplete(e);
    storeTimestampsSet(e);
    debug(25, 3) ("Loaded icon %s\n", url);
    storeUnlockObject(e);
    memFree(buf, MEM_4K_BUF);
}
/* create MIME Header for Gopher Data */
static void
gopherMimeCreate(GopherStateData * gopherState)
{
    StoreEntry *e = gopherState->entry;
    HttpReply *reply = e->mem_obj->reply;
    http_version_t version;
    const char *mime_type = NULL;
    const char *mime_enc = NULL;

    switch (gopherState->type_id) {
    case GOPHER_DIRECTORY:
    case GOPHER_INDEX:
    case GOPHER_HTML:
    case GOPHER_WWW:
    case GOPHER_CSO:
	mime_type = "text/html";
	break;
    case GOPHER_GIF:
    case GOPHER_IMAGE:
    case GOPHER_PLUS_IMAGE:
	mime_type = "image/gif";
	break;
    case GOPHER_SOUND:
    case GOPHER_PLUS_SOUND:
	mime_type = "audio/basic";
	break;
    case GOPHER_PLUS_MOVIE:
	mime_type = "video/mpeg";
	break;
    case GOPHER_MACBINHEX:
	mime_type = "application/macbinary";
	break;
    case GOPHER_DOSBIN:
    case GOPHER_UUENCODED:
    case GOPHER_BIN:
    case GOPHER_FILE:
    default:
	/* Rightnow We have no idea what it is. */
	mime_type = mimeGetContentType(gopherState->request);
	mime_enc = mimeGetContentEncoding(gopherState->request);
	break;
    }

    storeBuffer(e);
    httpReplyReset(reply);
    EBIT_CLR(gopherState->entry->flags, ENTRY_FWD_HDR_WAIT);
    httpBuildVersion(&version, 1, 0);
    httpReplySetHeaders(reply, version, HTTP_OK, "Gatewaying", mime_type, -1, -1, -1);
    if (mime_enc)
	httpHeaderPutStr(&reply->header, HDR_CONTENT_ENCODING, mime_enc);
    httpReplySwapOut(reply, e);
    reply->hdr_sz = e->mem_obj->inmem_hi;
    storeTimestampsSet(e);
    if (EBIT_TEST(e->flags, ENTRY_CACHABLE)) {
	storeSetPublicKey(e);
    } else {
	storeRelease(e);
    }
}
Пример #5
0
MemBuf
httpPackedReply(http_version_t ver, http_status status, const char *ctype,
    squid_off_t clen, time_t lmt, time_t expires)
{
    HttpReply *rep = httpReplyCreate();
    MemBuf mb;
    httpReplySetHeaders(rep, ver, status, ctype, NULL, clen, lmt, expires);
    mb = httpReplyPack(rep);
    httpReplyDestroy(rep);
    return mb;
}
static void
whoisReadReply(int fd, void *data)
{
    WhoisState *p = data;
    StoreEntry *entry = p->entry;
    char *buf = memAllocate(MEM_4K_BUF);
    MemObject *mem = entry->mem_obj;
    int len;
    statCounter.syscalls.sock.reads++;
    len = FD_READ_METHOD(fd, buf, 4095);
    buf[len] = '\0';
    debug(75, 3) ("whoisReadReply: FD %d read %d bytes\n", fd, len);
    debug(75, 5) ("{%s}\n", buf);
    if (len > 0) {
	if (0 == mem->inmem_hi) {
	    http_reply *reply = mem->reply;
	    http_version_t version;
	    storeBuffer(entry);
	    httpBuildVersion(&version, 1, 0);
	    httpReplySetHeaders(reply, version, HTTP_OK, "Gatewaying", "text/plain", -1, -1, -2);
	    httpReplySwapOut(reply, entry);
	}
	fd_bytes(fd, len, FD_READ);
	kb_incr(&statCounter.server.all.kbytes_in, len);
	kb_incr(&statCounter.server.http.kbytes_in, len);
	storeAppend(entry, buf, len);
	storeBufferFlush(entry);
	commSetSelect(fd, COMM_SELECT_READ, whoisReadReply, p, Config.Timeout.read);
    } else if (len < 0) {
	debug(50, 2) ("whoisReadReply: FD %d: read failure: %s.\n",
	    fd, xstrerror());
	if (ignoreErrno(errno)) {
	    commSetSelect(fd, COMM_SELECT_READ, whoisReadReply, p, Config.Timeout.read);
	} else {
	    ErrorState *err;
	    err = errorCon(ERR_READ_ERROR, HTTP_INTERNAL_SERVER_ERROR, p->fwd->request);
	    err->xerrno = errno;
	    fwdFail(p->fwd, err);
	    comm_close(fd);
	}
    } else {
	storeTimestampsSet(entry);
	storeBufferFlush(entry);
	if (!EBIT_TEST(entry->flags, RELEASE_REQUEST))
	    storeSetPublicKey(entry);
	fwdComplete(p->fwd);
	debug(75, 3) ("whoisReadReply: Done: %s\n", storeUrl(entry));
	comm_close(fd);
    }
    memFree(buf, MEM_4K_BUF);
}
Пример #7
0
static void
storeDigestRewriteResume(void)
{
    StoreEntry *e;

    assert(sd_state.rewrite_lock);
    assert(!sd_state.rebuild_lock);
    e = sd_state.rewrite_lock->data;
    sd_state.rewrite_offset = 0;
    EBIT_SET(e->flags, ENTRY_SPECIAL);
    /* setting public key will purge old digest entry if any */
    storeSetPublicKey(e);
    /* fake reply */
    httpReplyReset(e->mem_obj->reply);
    httpReplySetHeaders(e->mem_obj->reply, 200, "Cache Digest OK", "application/cache-digest", store_digest->mask_size + sizeof(sd_state.cblock), squid_curtime, squid_curtime + Config.digest.rewrite_period);
    debug(71, 3) ("storeDigestRewriteResume: entry expires on %ld (%+d)\n",
	(long int) e->mem_obj->reply->expires, (int) (e->mem_obj->reply->expires - squid_curtime));
    storeBuffer(e);
    httpReplySwapOut(e->mem_obj->reply, e);
    e->mem_obj->reply->hdr_sz = e->mem_obj->inmem_hi;
    storeDigestCBlockSwapOut(e);
    storeBufferFlush(e);
    eventAdd("storeDigestSwapOutStep", storeDigestSwapOutStep, sd_state.rewrite_lock, 0.0, 1);
}
Пример #8
0
void
cachemgrStart(int fd, request_t * request, StoreEntry * entry)
{
    cachemgrStateData *mgr = NULL;
    ErrorState *err = NULL;
    action_table *a;
    debug(16, 3) ("cachemgrStart: '%s'\n", storeUrl(entry));
    if ((mgr = cachemgrParseUrl(storeUrl(entry))) == NULL) {
	err = errorCon(ERR_INVALID_URL, HTTP_NOT_FOUND, request);
	err->url = xstrdup(storeUrl(entry));
	errorAppendEntry(entry, err);
	entry->expires = squid_curtime;
	return;
    }
    mgr->entry = entry;
    storeLockObject(entry);
    entry->expires = squid_curtime;
    debug(16, 5) ("CACHEMGR: %s requesting '%s'\n",
	fd_table[fd].ipaddr, mgr->action);
    /* get additional info from request headers */
    cachemgrParseHeaders(mgr, request);
    /* Check password */
    if (cachemgrCheckPassword(mgr) != 0) {
	/* build error message */
	ErrorState *err;
	HttpReply *rep;
	err = errorCon(ERR_CACHE_MGR_ACCESS_DENIED, HTTP_UNAUTHORIZED, request);
	/* warn if user specified incorrect password */
	if (mgr->passwd)
	    debug(16, 1) ("CACHEMGR: %s@%s: incorrect password for '%s'\n",
		mgr->user_name ? mgr->user_name : "<unknown>",
		fd_table[fd].ipaddr, mgr->action);
	else
	    debug(16, 1) ("CACHEMGR: %s@%s: password needed for '%s'\n",
		mgr->user_name ? mgr->user_name : "<unknown>",
		fd_table[fd].ipaddr, mgr->action);
	rep = errorBuildReply(err);
	errorStateFree(err);
	/*
	 * add Authenticate header, use 'action' as a realm because
	 * password depends on action
	 */
	httpHeaderPutAuth(&rep->header, "Basic", mgr->action);
	/* store the reply */
	httpReplySwapOut(rep, entry);
	entry->expires = squid_curtime;
	storeComplete(entry);
	cachemgrStateFree(mgr);
	return;
    }
    debug(16, 1) ("CACHEMGR: %s@%s requesting '%s'\n",
	mgr->user_name ? mgr->user_name : "<unknown>",
	fd_table[fd].ipaddr, mgr->action);
    /* retrieve object requested */
    a = cachemgrFindAction(mgr->action);
    assert(a != NULL);
    storeBuffer(entry);
    {
	HttpReply *rep = entry->mem_obj->reply;
	/* prove there are no previous reply headers around */
	assert(0 == rep->sline.status);
	httpReplySetHeaders(rep, HTTP_OK, NULL, "text/plain", -1, -1, squid_curtime);
	httpReplySwapOut(rep, entry);
    }
    a->handler(entry);
    storeBufferFlush(entry);
    if (a->flags.atomic)
	storeComplete(entry);
    cachemgrStateFree(mgr);
}
Пример #9
0
static void
urnHandleReply(void *data, char *buf, ssize_t size)
{
    UrnState *urnState = data;
    StoreEntry *e = urnState->entry;
    StoreEntry *urlres_e = urnState->urlres_e;
    char *s = NULL;
    size_t k;
    HttpReply *rep;
    url_entry *urls;
    url_entry *u;
    url_entry *min_u;
    MemBuf mb;
    ErrorState *err;
    int i;
    int urlcnt = 0;
    http_version_t version;

    debug(52, 3) ("urnHandleReply: Called with size=%d.\n", (int) size);
    if (EBIT_TEST(urlres_e->flags, ENTRY_ABORTED)) {
	memFree(buf, MEM_4K_BUF);
	return;
    }
    if (size == 0) {
	memFree(buf, MEM_4K_BUF);
	return;
    } else if (size < 0) {
	memFree(buf, MEM_4K_BUF);
	return;
    }
    if (urlres_e->store_status == STORE_PENDING && size < SM_PAGE_SIZE) {
	storeClientCopy(urnState->sc, urlres_e,
	    size,
	    0,
	    SM_PAGE_SIZE,
	    buf,
	    urnHandleReply,
	    urnState);
	return;
    }
    /* we know its STORE_OK */
    k = headersEnd(buf, size);
    if (0 == k) {
	debug(52, 1) ("urnHandleReply: didn't find end-of-headers for %s\n",
	    storeUrl(e));
	return;
    }
    s = buf + k;
    assert(urlres_e->mem_obj->reply);
    httpReplyParse(urlres_e->mem_obj->reply, buf, k);
    debug(52, 3) ("mem->reply exists, code=%d.\n",
	urlres_e->mem_obj->reply->sline.status);
    if (urlres_e->mem_obj->reply->sline.status != HTTP_OK) {
	debug(52, 3) ("urnHandleReply: failed.\n");
	err = errorCon(ERR_URN_RESOLVE, HTTP_NOT_FOUND);
	err->request = requestLink(urnState->request);
	err->url = xstrdup(storeUrl(e));
	errorAppendEntry(e, err);
	return;
    }
    while (xisspace(*s))
	s++;
    urls = urnParseReply(s, urnState->request->method);
    for (i = 0; NULL != urls[i].url; i++)
	urlcnt++;
    debug(53, 3) ("urnFindMinRtt: Counted %d URLs\n", i);
    if (urls == NULL) {		/* unkown URN error */
	debug(52, 3) ("urnTranslateDone: unknown URN %s\n", storeUrl(e));
	err = errorCon(ERR_URN_RESOLVE, HTTP_NOT_FOUND);
	err->request = requestLink(urnState->request);
	err->url = xstrdup(storeUrl(e));
	errorAppendEntry(e, err);
	return;
    }
    min_u = urnFindMinRtt(urls, urnState->request->method, NULL);
    qsort(urls, urlcnt, sizeof(*urls), url_entry_sort);
    storeBuffer(e);
    memBufDefInit(&mb);
    memBufPrintf(&mb,
	"<TITLE>Select URL for %s</TITLE>\n"
	"<STYLE type=\"text/css\"><!--BODY{background-color:#ffffff;font-family:verdana,sans-serif}--></STYLE>\n"
	"<H2>Select URL for %s</H2>\n"
	"<TABLE BORDER=\"0\" WIDTH=\"100%%\">\n", storeUrl(e), storeUrl(e));
    for (i = 0; i < urlcnt; i++) {
	u = &urls[i];
	debug(52, 3) ("URL {%s}\n", u->url);
	memBufPrintf(&mb,
	    "<TR><TD><A HREF=\"%s\">%s</A></TD>", u->url, u->url);
	if (urls[i].rtt > 0)
	    memBufPrintf(&mb,
		"<TD align=\"right\">%4d <it>ms</it></TD>", u->rtt);
	else
	    memBufPrintf(&mb, "<TD align=\"right\">Unknown</TD>");
	memBufPrintf(&mb,
	    "<TD>%s</TD></TR>\n", u->flags.cached ? "    [cached]" : " ");
    }
    memBufPrintf(&mb,
	"</TABLE>"
	"<HR noshade size=\"1px\">\n"
	"<ADDRESS>\n"
	"Generated by %s@%s\n"
	"</ADDRESS>\n",
	full_appname_string, getMyHostname());
    rep = e->mem_obj->reply;
    httpReplyReset(rep);
    httpBuildVersion(&version, 1, 0);
    httpReplySetHeaders(rep, version, HTTP_MOVED_TEMPORARILY, NULL,
	"text/html", mb.size, 0, squid_curtime);
    if (urnState->flags.force_menu) {
	debug(51, 3) ("urnHandleReply: forcing menu\n");
    } else if (min_u) {
	httpHeaderPutStr(&rep->header, HDR_LOCATION, min_u->url);
    }
    httpBodySet(&rep->body, &mb);
    httpReplySwapOut(rep, e);
    storeComplete(e);
    memFree(buf, MEM_4K_BUF);
    for (i = 0; i < urlcnt; i++) {
	safe_free(urls[i].url);
	safe_free(urls[i].host);
    }
    safe_free(urls);
    /* mb was absorbed in httpBodySet call, so we must not clean it */
    storeUnregister(urnState->sc, urlres_e, urnState);
    storeUnlockObject(urlres_e);
    storeUnlockObject(urnState->entry);
    requestUnlink(urnState->request);
    requestUnlink(urnState->urlres_r);
    cbdataFree(urnState);
}
void
netdbDump(StoreEntry * sentry)
{
#if USE_ICMP
    netdbEntry *n;
    netdbEntry **list;
    net_db_name *x;
    int k;
    int i;
    int j;
    net_db_peer *p;
    storeAppendPrintf(sentry, "Network DB Statistics:\n");
    storeAppendPrintf(sentry, "%-16.16s %9s %7s %5s %s\n",
	"Network",
	"recv/sent",
	"RTT",
	"Hops",
	"Hostnames");
    list = xcalloc(memInUse(MEM_NETDBENTRY), sizeof(netdbEntry *));
    i = 0;
    hash_first(addr_table);
    while ((n = (netdbEntry *) hash_next(addr_table)))
	*(list + i++) = n;
    if (i != memInUse(MEM_NETDBENTRY))
	debug(38, 0) ("WARNING: netdb_addrs count off, found %d, expected %d\n",
	    i, memInUse(MEM_NETDBENTRY));
    qsort((char *) list,
	i,
	sizeof(netdbEntry *),
	sortByRtt);
    for (k = 0; k < i; k++) {
	n = *(list + k);
	storeAppendPrintf(sentry, "%-16.16s %4d/%4d %7.1f %5.1f",
	    n->network,
	    n->pings_recv,
	    n->pings_sent,
	    n->rtt,
	    n->hops);
	for (x = n->hosts; x; x = x->next)
	    storeAppendPrintf(sentry, " %s", hashKeyStr(&x->hash));
	storeAppendPrintf(sentry, "\n");
	p = n->peers;
	for (j = 0; j < n->n_peers; j++, p++) {
	    storeAppendPrintf(sentry, "    %-22.22s %7.1f %5.1f\n",
		p->peername,
		p->rtt,
		p->hops);
	}
    }
    xfree(list);
#else
    http_reply *reply = sentry->mem_obj->reply;
    http_version_t version;
    httpReplyReset(reply);
    httpBuildVersion(&version, 1, 0);
    httpReplySetHeaders(reply, version, HTTP_BAD_REQUEST, "Bad Request",
	NULL, -1, squid_curtime, -2);
    httpReplySwapOut(reply, sentry);
    storeAppendPrintf(sentry,
	"NETDB support not compiled into this Squid cache.\n");
#endif
}