51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#include "socket.h" // for select()
-#include "porting.h" // for sleep_ms(), get_sysinfo()
#include "httpfetch.h"
+#include "porting.h" // for sleep_ms(), get_sysinfo(), secure_rand_fill_buf()
#include <iostream>
#include <sstream>
#include <list>
#include <map>
-#include <errno.h>
-#include "jthread/jevent.h"
+#include <cerrno>
+#include <mutex>
+#include "network/socket.h" // for select()
+#include "threading/event.h"
#include "config.h"
#include "exceptions.h"
#include "debug.h"
#include "util/thread.h"
#include "version.h"
#include "settings.h"
+#include "noise.h"
-JMutex g_httpfetch_mutex;
+std::mutex g_httpfetch_mutex;
std::map<unsigned long, std::queue<HTTPFetchResult> > g_httpfetch_results;
+PcgRandom g_callerid_randomness;
-HTTPFetchRequest::HTTPFetchRequest()
+HTTPFetchRequest::HTTPFetchRequest() :
+ timeout(g_settings->getS32("curl_timeout")),
+ connect_timeout(timeout),
+ useragent(std::string(PROJECT_NAME_C "/") + g_version_hash + " (" + porting::get_sysinfo() + ")")
{
- url = "";
- caller = HTTPFETCH_DISCARD;
- request_id = 0;
- timeout = g_settings->getS32("curl_timeout");
- connect_timeout = timeout;
- multipart = false;
-
- useragent = std::string(PROJECT_NAME_C "/") + g_version_hash + " (" + porting::get_sysinfo() + ")";
}
{
unsigned long caller = fetch_result.caller;
if (caller != HTTPFETCH_DISCARD) {
- JMutexAutoLock lock(g_httpfetch_mutex);
+ MutexAutoLock lock(g_httpfetch_mutex);
g_httpfetch_results[caller].push(fetch_result);
}
}
unsigned long httpfetch_caller_alloc()
{
- JMutexAutoLock lock(g_httpfetch_mutex);
+ MutexAutoLock lock(g_httpfetch_mutex);
// Check each caller ID except HTTPFETCH_DISCARD
const unsigned long discard = HTTPFETCH_DISCARD;
return discard;
}
+unsigned long httpfetch_caller_alloc_secure()
+{
+ MutexAutoLock lock(g_httpfetch_mutex);
+
+ // Generate random caller IDs and make sure they're not
+ // already used or equal to HTTPFETCH_DISCARD
+ // Give up after 100 tries to prevent infinite loop
+ u8 tries = 100;
+ unsigned long caller;
+
+ do {
+ caller = (((u64) g_callerid_randomness.next()) << 32) |
+ g_callerid_randomness.next();
+
+ if (--tries < 1) {
+ FATAL_ERROR("httpfetch_caller_alloc_secure: ran out of caller IDs");
+ return HTTPFETCH_DISCARD;
+ }
+ } while (g_httpfetch_results.find(caller) != g_httpfetch_results.end());
+
+ verbosestream << "httpfetch_caller_alloc_secure: allocating "
+ << caller << std::endl;
+
+ // Access element to create it
+ g_httpfetch_results[caller];
+ return caller;
+}
+
void httpfetch_caller_free(unsigned long caller)
{
verbosestream<<"httpfetch_caller_free: freeing "
httpfetch_request_clear(caller);
if (caller != HTTPFETCH_DISCARD) {
- JMutexAutoLock lock(g_httpfetch_mutex);
+ MutexAutoLock lock(g_httpfetch_mutex);
g_httpfetch_results.erase(caller);
}
}
bool httpfetch_async_get(unsigned long caller, HTTPFetchResult &fetch_result)
{
- JMutexAutoLock lock(g_httpfetch_mutex);
+ MutexAutoLock lock(g_httpfetch_mutex);
// Check that caller exists
std::map<unsigned long, std::queue<HTTPFetchResult> >::iterator
std::list<CURL*> handles;
public:
- CurlHandlePool() {}
+ CurlHandlePool() = default;
+
~CurlHandlePool()
{
for (std::list<CURL*>::iterator it = handles.begin();
class HTTPFetchOngoing
{
public:
- HTTPFetchOngoing(HTTPFetchRequest request, CurlHandlePool *pool);
+ HTTPFetchOngoing(const HTTPFetchRequest &request, CurlHandlePool *pool);
~HTTPFetchOngoing();
CURLcode start(CURLM *multi);
};
-HTTPFetchOngoing::HTTPFetchOngoing(HTTPFetchRequest request_, CurlHandlePool *pool_):
+HTTPFetchOngoing::HTTPFetchOngoing(const HTTPFetchRequest &request_,
+ CurlHandlePool *pool_):
pool(pool_),
curl(NULL),
multi(NULL),
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
- curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 1);
+ curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 3);
+ curl_easy_setopt(curl, CURLOPT_ENCODING, "gzip");
std::string bind_address = g_settings->get("bind_address");
if (!bind_address.empty()) {
curl_easy_setopt(curl, CURLOPT_INTERFACE, bind_address.c_str());
}
+ if (!g_settings->getBool("enable_ipv6")) {
+ curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
+ }
+
#if LIBCURL_VERSION_NUM >= 0x071304
// Restrict protocols so that curl vulnerabilities in
// other protocols don't affect us.
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT_MS,
request.connect_timeout);
- if (request.useragent != "")
+ if (!request.useragent.empty())
curl_easy_setopt(curl, CURLOPT_USERAGENT, request.useragent.c_str());
// Set up a write callback that writes to the
}
// Set POST (or GET) data
- if (request.post_fields.empty()) {
+ if (request.post_fields.empty() && request.post_data.empty()) {
curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
} else if (request.multipart) {
curl_httppost *last = NULL;
- for (std::map<std::string, std::string>::iterator it =
- request.post_fields.begin();
+ for (StringMap::iterator it = request.post_fields.begin();
it != request.post_fields.end(); ++it) {
curl_formadd(&post, &last,
CURLFORM_NAMELENGTH, it->first.size(),
} else if (request.post_data.empty()) {
curl_easy_setopt(curl, CURLOPT_POST, 1);
std::string str;
- for (std::map<std::string, std::string>::iterator it =
- request.post_fields.begin();
- it != request.post_fields.end();
- ++it) {
- if (str != "")
+ for (auto &post_field : request.post_fields) {
+ if (!str.empty())
str += "&";
- str += urlencode(it->first);
+ str += urlencode(post_field.first);
str += "=";
- str += urlencode(it->second);
+ str += urlencode(post_field.second);
}
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE,
str.size());
// modified until CURLOPT_POSTFIELDS is cleared
}
// Set additional HTTP headers
- for (std::vector<std::string>::iterator it = request.extra_headers.begin();
- it != request.extra_headers.end(); ++it) {
- http_header = curl_slist_append(http_header, it->c_str());
+ for (const std::string &extra_header : request.extra_headers) {
+ http_header = curl_slist_append(http_header, extra_header.c_str());
}
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
}
-class CurlFetchThread : public JThread
+class CurlFetchThread : public Thread
{
protected:
enum RequestType {
std::list<HTTPFetchRequest> m_queued_fetches;
public:
- CurlFetchThread(int parallel_limit)
+ CurlFetchThread(int parallel_limit) :
+ Thread("CurlFetch")
{
if (parallel_limit >= 1)
m_parallel_limit = parallel_limit;
}
}
- void * Thread()
+ void *run()
{
- ThreadStarted();
- log_register_thread("CurlFetchThread");
- DSTACK(__FUNCTION_NAME);
-
- porting::setThreadName("CurlFetchThread");
-
CurlHandlePool pool;
m_multi = curl_multi_init();
FATAL_ERROR_IF(!m_all_ongoing.empty(), "Expected empty");
- while (!StopRequested()) {
+ while (!stopRequested()) {
BEGIN_DEBUG_EXCEPTION_HANDLER
/*
else
waitForIO(100);
- END_DEBUG_EXCEPTION_HANDLER(errorstream)
+ END_DEBUG_EXCEPTION_HANDLER
}
// Call curl_multi_remove_handle and cleanup easy handles
- for (size_t i = 0; i < m_all_ongoing.size(); ++i) {
- delete m_all_ongoing[i];
+ for (HTTPFetchOngoing *i : m_all_ongoing) {
+ delete i;
}
m_all_ongoing.clear();
FATAL_ERROR_IF(res != CURLE_OK, "CURL init failed");
g_httpfetch_thread = new CurlFetchThread(parallel_limit);
+
+ // Initialize g_callerid_randomness for httpfetch_caller_alloc_secure
+ u64 randbuf[2];
+ porting::secure_rand_fill_buf(randbuf, sizeof(u64) * 2);
+ g_callerid_randomness = PcgRandom(randbuf[0], randbuf[1]);
}
void httpfetch_cleanup()
{
verbosestream<<"httpfetch_cleanup: cleaning up"<<std::endl;
- g_httpfetch_thread->Stop();
+ g_httpfetch_thread->stop();
g_httpfetch_thread->requestWakeUp();
- g_httpfetch_thread->Wait();
+ g_httpfetch_thread->wait();
delete g_httpfetch_thread;
curl_global_cleanup();
void httpfetch_async(const HTTPFetchRequest &fetch_request)
{
g_httpfetch_thread->requestFetch(fetch_request);
- if (!g_httpfetch_thread->IsRunning())
- g_httpfetch_thread->Start();
+ if (!g_httpfetch_thread->isRunning())
+ g_httpfetch_thread->start();
}
static void httpfetch_request_clear(unsigned long caller)
{
- if (g_httpfetch_thread->IsRunning()) {
+ if (g_httpfetch_thread->isRunning()) {
Event event;
g_httpfetch_thread->requestClear(caller, &event);
event.wait();
- }
- else {
+ } else {
g_httpfetch_thread->requestClear(caller, NULL);
}
}
projects / oweals / minetest.git / blobdiff