int
httpSpecialRequest(ObjectPtr object, int method, int from, int to,
HTTPRequestPtr requestor, void *closure)
{
char buffer[1024];
int hlen;
if (method >= METHOD_POST) {
return httpSpecialSideRequest(object, method, from, to,
requestor, closure);
}
if (!(object->flags & OBJECT_INITIAL)) {
privatiseObject(object, 0);
supersedeObject(object);
object->flags &= ~(OBJECT_VALIDATING | OBJECT_INPROGRESS);
notifyObject(object);
return 1;
}
hlen = snnprintf(buffer, 0, 1024,
"\r\nServer: s_server" "\r\nContent-Type: text/html");
object->date = current_time.tv_sec;
object->age = current_time.tv_sec;
object->headers = internAtomN(buffer, hlen);
object->code = 200;
object->message = internAtom("Okay");
object->flags &= ~OBJECT_INITIAL;
object->flags |= OBJECT_DYNAMIC;
if (object->key_size == 8 && memcmp(object->key, "/s_server/", 8) == 0) {
objectPrintf(object, 0,
"<!DOCTYPE HTML PUBLIC "
"\"-//W3C//DTD HTML 4.01 Transitional//EN\" "
"\"http://www.w3.org/TR/html4/loose.dtd\">\n"
"<html><head>\n"
"<title>Polipo</title>\n"
"</head><body>\n"
"<h1>Polipo</h1>\n"
"<p><a href=\"status?\">Status report</a>.</p>\n"
"<p><a href=\"config?\">Current configuration</a>.</p>\n"
"<p><a href=\"servers?\">Known servers</a>.</p>\n"
#ifndef NO_DISK_CACHE
"<p><a href=\"index?\">Disk cache index</a>.</p>\n"
#endif
"</body></html>\n");
object->length = object->size;
} else if (matchUrl("/s_server/status", object)) {
objectPrintf(object, 0,
"<!DOCTYPE HTML PUBLIC "
"\"-//W3C//DTD HTML 4.01 Transitional//EN\" "
"\"http://www.w3.org/TR/html4/loose.dtd\">\n"
"<html><head>\n"
"<title>Polipo status report</title>\n"
"</head><body>\n"
"<h1>Polipo proxy on %s:%d: status report</h1>\n"
"<p>The %s proxy on %s:%d is %s.</p>\n"
"<p>There are %d public and %d private objects "
"currently in memory using %d KB in %d chunks "
"(%d KB allocated).</p>\n"
"<p>There are %d atoms.</p>"
"<p><form method=POST action=\"/s_server/status?\">"
"<input type=submit name=\"init-forbidden\" "
"value=\"Read forbidden file\"></form>\n"
"<form method=POST action=\"/s_server/status?\">"
"<input type=submit name=\"writeout-objects\" "
"value=\"Write out in-memory cache\"></form>\n"
"<form method=POST action=\"/s_server/status?\">"
"<input type=submit name=\"discard-objects\" "
"value=\"Discard in-memory cache\"></form>\n"
"<form method=POST action=\"/s_server/status?\">"
"<input type=submit name=\"reopen-log\" "
"value=\"Reopen log file\"></form>\n"
"<form method=POST action=\"/s_server/status?\">"
"<input type=submit name=\"free-chunk-arenas\" "
"value=\"Free chunk arenas\"></form></p>\n"
"<p><a href=\"/s_server/\">back</a></p>"
"</body></html>\n",
proxyName->string, proxyPort,
cacheIsShared ? "shared" : "private",
proxyName->string, proxyPort,
proxyOffline ? "off line" :
(relaxTransparency ?
"on line (transparency relaxed)" :
"on line"),
publicObjectCount, privateObjectCount,
used_chunks * CHUNK_SIZE / 1024, used_chunks,
totalChunkArenaSize() / 1024, used_atoms);
object->expires = current_time.tv_sec;
object->length = object->size;
} else if (matchUrl("/s_server/config", object)) {
fillSpecialObject(object, printConfig, NULL);
object->expires = current_time.tv_sec + 5;
#ifndef NO_DISK_CACHE
} else if (matchUrl("/s_server/index", object)) {
int len;
char *root;
if (disableIndexing) {
abortObject(object, 403,
internAtom("Action not allowed"));
notifyObject(object);
return 1;
}
len = MAX(0, object->key_size - 14);
root = strdup_n((char *)object->key + 14, len);
if (root == NULL) {
abortObject(object, 503,
internAtom("Couldn't allocate root"));
notifyObject(object);
return 1;
}
writeoutObjects(1);
fillSpecialObject(object, plainIndexDiskObjects, root);
free(root);
object->expires = current_time.tv_sec + 5;
} else if (matchUrl("/s_server/recursive-index", object)) {
int len;
char *root;
if (disableIndexing) {
abortObject(object, 403,
internAtom("Action not allowed"));
notifyObject(object);
return 1;
}
len = MAX(0, object->key_size - 24);
root = strdup_n((char *)object->key + 24, len);
if (root == NULL) {
abortObject(object, 503,
internAtom("Couldn't allocate root"));
notifyObject(object);
return 1;
}
writeoutObjects(1);
fillSpecialObject(object, recursiveIndexDiskObjects, root);
free(root);
object->expires = current_time.tv_sec + 20;
#endif
} else if (matchUrl("/s_server/servers", object)) {
if (disableServersList) {
abortObject(object, 403,
internAtom("Action not allowed"));
notifyObject(object);
return 1;
}
fillSpecialObject(object, serversList, NULL);
object->expires = current_time.tv_sec + 2;
} else {
abortObject(object, 404, internAtom("Not found"));
}
object->flags &= ~OBJECT_VALIDATING;
notifyObject(object);
return 1;
}
int
do_gethostbyname(char *origname,
int count,
int (*handler)(int, GethostbynameRequestPtr),
void *data)
{
ObjectPtr object;
int n = strlen(origname);
AtomPtr name;
GethostbynameRequestRec request;
int done, rc;
memset(&request, 0, sizeof(request));
request.name = NULL;
request.addr = NULL;
request.error_message = NULL;
request.count = count;
request.handler = handler;
request.data = data;
if(n <= 0 || n > 131) {
if(n <= 0) {
request.error_message = internAtom("empty name");
do_log(L_ERROR, "Empty DNS name.\n");
done = handler(-EINVAL, &request);
} else {
request.error_message = internAtom("name too long");
do_log(L_ERROR, "DNS name too long.\n");
done = handler(-ENAMETOOLONG, &request);
}
assert(done);
releaseAtom(request.error_message);
return 1;
}
if(origname[n - 1] == '.')
n--;
name = internAtomLowerN(origname, n);
if(name == NULL) {
request.error_message = internAtom("couldn't allocate name");
do_log(L_ERROR, "Couldn't allocate DNS name.\n");
done = handler(-ENOMEM, &request);
assert(done);
releaseAtom(request.error_message);
return 1;
}
request.name = name;
request.addr = NULL;
request.error_message = NULL;
request.count = count;
request.object = NULL;
request.handler = handler;
request.data = data;
object = findObject(OBJECT_DNS, name->string, name->length);
if(object == NULL || objectMustRevalidate(object, NULL)) {
if(object) {
privatiseObject(object, 0);
releaseObject(object);
}
object = makeObject(OBJECT_DNS, name->string, name->length, 1, 0,
NULL, NULL);
if(object == NULL) {
request.error_message = internAtom("Couldn't allocate object");
do_log(L_ERROR, "Couldn't allocate DNS object.\n");
done = handler(-ENOMEM, &request);
assert(done);
releaseAtom(name);
releaseAtom(request.error_message);
return 1;
}
}
if((object->flags & (OBJECT_INITIAL | OBJECT_INPROGRESS)) ==
OBJECT_INITIAL) {
if(dnsUseGethostbyname >= 3)
rc = really_do_gethostbyname(name, object);
else
rc = really_do_dns(name, object);
if(rc < 0) {
assert(!(object->flags & (OBJECT_INITIAL | OBJECT_INPROGRESS)));
goto fail;
}
}
if(dnsUseGethostbyname >= 3)
assert(!(object->flags & OBJECT_INITIAL));
#ifndef NO_FANCY_RESOLVER
if(object->flags & OBJECT_INITIAL) {
ConditionHandlerPtr chandler;
assert(object->flags & OBJECT_INPROGRESS);
request.object = object;
chandler = conditionWait(&object->condition, dnsHandler,
sizeof(request), &request);
if(chandler == NULL)
goto fail;
return 1;
}
#endif
if(object->headers && object->headers->length > 0) {
if(object->headers->string[0] == DNS_A)
assert(((object->headers->length - 1) %
sizeof(HostAddressRec)) == 0);
else
assert(object->headers->string[0] == DNS_CNAME);
request.addr = retainAtom(object->headers);
} else if(object->message) {
request.error_message = retainAtom(object->message);
}
releaseObject(object);
if(request.addr && request.addr->length > 0)
done = handler(1, &request);
else
done = handler(-EDNS_HOST_NOT_FOUND, &request);
assert(done);
releaseAtom(request.addr); request.addr = NULL;
releaseAtom(request.name); request.name = NULL;
releaseAtom(request.error_message); request.error_message = NULL;
return 1;
fail:
releaseNotifyObject(object);
done = handler(-errno, &request);
assert(done);
releaseAtom(name);
return 1;
}
