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-rw-r--r--osdep/HttpClient.cpp590
1 files changed, 0 insertions, 590 deletions
diff --git a/osdep/HttpClient.cpp b/osdep/HttpClient.cpp
deleted file mode 100644
index 1cf78204..00000000
--- a/osdep/HttpClient.cpp
+++ /dev/null
@@ -1,590 +0,0 @@
-/*
- * ZeroTier One - Network Virtualization Everywhere
- * Copyright (C) 2011-2015 ZeroTier, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * --
- *
- * ZeroTier may be used and distributed under the terms of the GPLv3, which
- * are available at: http://www.gnu.org/licenses/gpl-3.0.html
- *
- * If you would like to embed ZeroTier into a commercial application or
- * redistribute it in a modified binary form, please contact ZeroTier Networks
- * LLC. Start here: http://www.zerotier.com/
- */
-
-#include "../node/Constants.hpp"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifdef __WINDOWS__
-#include <WinSock2.h>
-#include <Windows.h>
-#include <winhttp.h>
-#include <locale>
-#include <codecvt>
-#endif // __WINDOWS__
-
-#ifdef __UNIX_LIKE__
-#include <unistd.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <sys/select.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-#endif // __UNIX_LIKE__
-
-#include <vector>
-#include <utility>
-#include <algorithm>
-
-#include "HttpClient.hpp"
-#include "Thread.hpp"
-#include "OSUtils.hpp"
-#include "../node/Utils.hpp"
-
-namespace ZeroTier {
-
-#ifdef __UNIX_LIKE__
-
-// The *nix implementation calls 'curl' externally rather than linking to it.
-// This makes it an optional dependency that can be avoided in tiny systems
-// provided you don't want to have automatic software updates... or want to
-// do them via another method.
-
-#ifdef __APPLE__
-// TODO: get proxy configuration
-#endif
-
-// Paths where "curl" may be found on the system
-#define NUM_CURL_PATHS 6
-static const char *CURL_PATHS[NUM_CURL_PATHS] = { "/usr/bin/curl","/bin/curl","/usr/local/bin/curl","/usr/sbin/curl","/sbin/curl","/usr/libexec/curl" };
-
-// Maximum message length
-#define CURL_MAX_MESSAGE_LENGTH (1024 * 1024 * 64)
-
-// Internal private thread class that performs request, notifies handler,
-// and then commits suicide by deleting itself.
-class HttpClient_Private_Request
-{
-public:
- HttpClient_Private_Request(HttpClient *parent,const char *method,const std::string &url,const std::map<std::string,std::string> &headers,unsigned int timeout,void (*handler)(void *,int,const std::string &,const std::string &),void *arg) :
- _url(url),
- _headers(headers),
- _timeout(timeout),
- _handler(handler),
- _arg(arg),
- _parent(parent),
- _pid(0),
- _cancelled(false)
- {
- _myThread = Thread::start(this);
- }
-
- ~HttpClient_Private_Request()
- {
- Mutex::Lock _l(_parent->_requests_m);
- _parent->_requests.erase((HttpClient::Request)this);
- }
-
- void threadMain()
- {
- char *curlArgs[1024];
- char buf[16384];
- fd_set readfds,writefds,errfds;
- struct timeval tv;
-
- std::string curlPath;
- for(int i=0;i<NUM_CURL_PATHS;++i) {
- if (OSUtils::fileExists(CURL_PATHS[i])) {
- curlPath = CURL_PATHS[i];
- break;
- }
- }
-
- if (!curlPath.length()) {
- _doH(_arg,-1,_url,"unable to locate 'curl' binary in /usr/bin, /bin, /usr/local/bin, /usr/sbin, or /sbin");
- delete this;
- return;
- }
- if (!_url.length()) {
- _doH(_arg,-1,_url,"cannot fetch empty URL");
- delete this;
- return;
- }
-
- curlArgs[0] = const_cast <char *>(curlPath.c_str());
- curlArgs[1] = const_cast <char *>("-D");
- curlArgs[2] = const_cast <char *>("-"); // append headers before output
- int argPtr = 3;
- std::vector<std::string> headerArgs;
- for(std::map<std::string,std::string>::const_iterator h(_headers.begin());h!=_headers.end();++h) {
- headerArgs.push_back(h->first);
- headerArgs.back().append(": ");
- headerArgs.back().append(h->second);
- }
- for(std::vector<std::string>::iterator h(headerArgs.begin());h!=headerArgs.end();++h) {
- if (argPtr >= (1024 - 4)) // leave room for terminating NULL and URL
- break;
- curlArgs[argPtr++] = const_cast <char *>("-H");
- curlArgs[argPtr++] = const_cast <char *>(h->c_str());
- }
- curlArgs[argPtr++] = const_cast <char *>(_url.c_str());
- curlArgs[argPtr] = (char *)0;
-
- if (_cancelled) {
- delete this;
- return;
- }
-
- int curlStdout[2];
- int curlStderr[2];
- ::pipe(curlStdout);
- ::pipe(curlStderr);
-
- _pid = (long)vfork();
- if (_pid < 0) {
- // fork() failed
- ::close(curlStdout[0]);
- ::close(curlStdout[1]);
- ::close(curlStderr[0]);
- ::close(curlStderr[1]);
- _doH(_arg,-1,_url,"unable to fork()");
- delete this;
- return;
- } else if (_pid > 0) {
- // fork() succeeded, in parent process
- ::close(curlStdout[1]);
- ::close(curlStderr[1]);
- fcntl(curlStdout[0],F_SETFL,O_NONBLOCK);
- fcntl(curlStderr[0],F_SETFL,O_NONBLOCK);
-
- int exitCode = -1;
- unsigned long long timesOutAt = OSUtils::now() + ((unsigned long long)_timeout * 1000ULL);
- bool timedOut = false;
- bool tooLong = false;
-
- while (!_cancelled) {
- FD_ZERO(&readfds);
- FD_ZERO(&writefds);
- FD_ZERO(&errfds);
- FD_SET(curlStdout[0],&readfds);
- FD_SET(curlStderr[0],&readfds);
- FD_SET(curlStdout[0],&errfds);
- FD_SET(curlStderr[0],&errfds);
- tv.tv_sec = 1;
- tv.tv_usec = 0;
- select(std::max(curlStdout[0],curlStderr[0])+1,&readfds,&writefds,&errfds,&tv);
-
- if (FD_ISSET(curlStdout[0],&readfds)) {
- int n = (int)::read(curlStdout[0],buf,sizeof(buf));
- if (n > 0) {
- _body.append(buf,n);
- // Reset timeout when data is read...
- timesOutAt = OSUtils::now() + ((unsigned long long)_timeout * 1000ULL);
- } else if (n < 0)
- break;
- if (_body.length() > CURL_MAX_MESSAGE_LENGTH) {
- tooLong = true;
- break;
- }
- }
-
- if (FD_ISSET(curlStderr[0],&readfds))
- ::read(curlStderr[0],buf,sizeof(buf));
-
- if (FD_ISSET(curlStdout[0],&errfds)||FD_ISSET(curlStderr[0],&errfds))
- break;
-
- if (OSUtils::now() >= timesOutAt) {
- timedOut = true;
- break;
- }
-
- if (waitpid(_pid,&exitCode,WNOHANG) > 0) {
- for(;;) {
- // Drain output...
- int n = (int)::read(curlStdout[0],buf,sizeof(buf));
- if (n <= 0)
- break;
- else {
- _body.append(buf,n);
- if (_body.length() > CURL_MAX_MESSAGE_LENGTH) {
- tooLong = true;
- break;
- }
- }
- }
- _pid = 0;
- break;
- }
- }
-
- if (_pid > 0) {
- ::kill(_pid,SIGKILL);
- waitpid(_pid,&exitCode,0);
- }
- _pid = 0;
-
- ::close(curlStdout[0]);
- ::close(curlStderr[0]);
-
- if (timedOut)
- _doH(_arg,-1,_url,"connection timed out");
- else if (tooLong)
- _doH(_arg,-1,_url,"response too long");
- else if (exitCode)
- _doH(_arg,-1,_url,"connection failed (curl returned non-zero exit code)");
- else {
- unsigned long idx = 0;
-
- // Grab status line and headers, which will prefix output on
- // success and will end with an empty line.
- std::vector<std::string> headers;
- headers.push_back(std::string());
- while (idx < _body.length()) {
- char c = _body[idx++];
- if (c == '\n') {
- if (!headers.back().length()) {
- headers.pop_back();
- break;
- } else headers.push_back(std::string());
- } else if (c != '\r')
- headers.back().push_back(c);
- }
- if (headers.empty()||(!headers.front().length())) {
- _doH(_arg,-1,_url,"HTTP response empty");
- delete this;
- return;
- }
-
- // Parse first line -- HTTP status code and response
- size_t scPos = headers.front().find(' ');
- if (scPos == std::string::npos) {
- _doH(_arg,-1,_url,"invalid HTTP response (no status line)");
- delete this;
- return;
- }
- ++scPos;
- unsigned int rcode = Utils::strToUInt(headers.front().substr(scPos,3).c_str());
- if ((!rcode)||(rcode > 999)) {
- _doH(_arg,-1,_url,"invalid HTTP response (invalid response code)");
- delete this;
- return;
- }
-
- // Serve up the resulting data to the handler
- if (rcode == 200)
- _doH(_arg,rcode,_url,_body.substr(idx));
- else if ((scPos + 4) < headers.front().length())
- _doH(_arg,rcode,_url,headers.front().substr(scPos+4));
- else _doH(_arg,rcode,_url,"(no status message from server)");
- }
-
- delete this;
- return;
- } else {
- // fork() succeeded, in child process
- ::dup2(curlStdout[1],STDOUT_FILENO);
- ::close(curlStdout[1]);
- ::dup2(curlStderr[1],STDERR_FILENO);
- ::close(curlStderr[1]);
- ::execv(curlPath.c_str(),curlArgs);
- ::exit(-1); // only reached if execv() fails
- }
- }
-
- inline void cancel()
- {
- {
- Mutex::Lock _l(_cancelled_m);
- _cancelled = true;
- if (_pid > 0)
- ::kill(_pid,SIGKILL);
- }
- Thread::join(_myThread);
- }
-
-private:
- inline void _doH(void *arg,int code,const std::string &url,const std::string &body)
- {
- Mutex::Lock _l(_cancelled_m);
- try {
- if ((!_cancelled)&&(_handler))
- _handler(arg,code,url,body);
- } catch ( ... ) {}
- }
-
- const std::string _url;
- std::string _body;
- std::map<std::string,std::string> _headers;
- unsigned int _timeout;
- void (*_handler)(void *,int,const std::string &,const std::string &);
- void *_arg;
- HttpClient *_parent;
- long _pid;
- volatile bool _cancelled;
- Mutex _cancelled_m;
- Thread _myThread;
-};
-
-#endif // __UNIX_LIKE__
-
-#ifdef __WINDOWS__
-
-#define WIN_MAX_MESSAGE_LENGTH (1024 * 1024 * 64)
-
-// Internal private thread class that performs request, notifies handler,
-// and then commits suicide by deleting itself.
-class HttpClient_Private_Request : NonCopyable
-{
-public:
- HttpClient_Private_Request(HttpClient *parent,const char *method,const std::string &url,const std::map<std::string,std::string> &headers,unsigned int timeout,void (*handler)(void *,int,const std::string &,const std::string &),void *arg) :
- _url(url),
- _headers(headers),
- _timeout(timeout),
- _handler(handler),
- _arg(arg),
- _parent(parent),
- _hRequest((HINTERNET)0)
- {
- _myThread = Thread::start(this);
- }
-
- ~HttpClient_Private_Request()
- {
- Mutex::Lock _l(_parent->_requests_m);
- _parent->_requests.erase((HttpClient::Request)this);
- }
-
- void threadMain()
- {
- HINTERNET hSession = (HINTERNET)0;
- HINTERNET hConnect = (HINTERNET)0;
- HINTERNET hRequest = (HINTERNET)0;
-
- try {
- hSession = WinHttpOpen(L"ZeroTier One HttpClient/1.0 (WinHttp)",WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,WINHTTP_NO_PROXY_NAME,WINHTTP_NO_PROXY_BYPASS,0);
- if (!hSession) {
- _handler(_arg,-1,_url,"WinHttpOpen() failed");
- goto closeAndReturnFromHttp;
- }
- int timeoutMs = (int)_timeout * 1000;
- WinHttpSetTimeouts(hSession,timeoutMs,timeoutMs,timeoutMs,timeoutMs);
-
- std::wstring_convert< std::codecvt_utf8<wchar_t> > wcconv;
- std::wstring wurl(wcconv.from_bytes(_url));
-
- URL_COMPONENTS uc;
- memset(&uc,0,sizeof(uc));
- uc.dwStructSize = sizeof(uc);
- uc.dwSchemeLength = -1;
- uc.dwHostNameLength = -1;
- uc.dwUrlPathLength = -1;
- uc.dwExtraInfoLength = -1;
- if (!WinHttpCrackUrl(wurl.c_str(),(DWORD)wurl.length(),0,&uc)) {
- _handler(_arg,-1,_url,"unable to parse URL: WinHttpCrackUrl() failed");
- goto closeAndReturnFromHttp;
- }
- if ((!uc.lpszHostName)||(!uc.lpszUrlPath)||(!uc.lpszScheme)||(uc.dwHostNameLength <= 0)||(uc.dwUrlPathLength <= 0)||(uc.dwSchemeLength <= 0)) {
- _handler(_arg,-1,_url,"unable to parse URL: missing scheme, host name, or path");
- goto closeAndReturnFromHttp;
- }
- std::wstring urlScheme(uc.lpszScheme,uc.dwSchemeLength);
- std::wstring urlHostName(uc.lpszHostName,uc.dwHostNameLength);
- std::wstring urlPath(uc.lpszUrlPath,uc.dwUrlPathLength);
- if ((uc.lpszExtraInfo)&&(uc.dwExtraInfoLength > 0))
- urlPath.append(uc.lpszExtraInfo,uc.dwExtraInfoLength);
-
- if (urlScheme != L"http") {
- _handler(_arg,-1,_url,"only 'http' scheme is supported");
- goto closeAndReturnFromHttp;
- }
-
- hConnect = WinHttpConnect(hSession,urlHostName.c_str(),((uc.nPort > 0) ? uc.nPort : 80),0);
- if (!hConnect) {
- _handler(_arg,-1,_url,"connection failed");
- goto closeAndReturnFromHttp;
- }
-
- {
- Mutex::Lock _rl(_hRequest_m);
- _hRequest = WinHttpOpenRequest(hConnect,L"GET",urlPath.c_str(),NULL,WINHTTP_NO_REFERER,WINHTTP_DEFAULT_ACCEPT_TYPES,0);
- if (!_hRequest) {
- _handler(_arg,-1,_url,"error sending request (1)");
- goto closeAndReturnFromHttp;
- }
- if (!WinHttpSendRequest(_hRequest,WINHTTP_NO_ADDITIONAL_HEADERS,0,WINHTTP_NO_REQUEST_DATA,0,0,0)) {
- _handler(_arg,-1,_url,"error sending request (2)");
- goto closeAndReturnFromHttp;
- }
- hRequest = _hRequest;
- }
-
- if (WinHttpReceiveResponse(hRequest,NULL)) {
- DWORD dwStatusCode = 0;
- DWORD dwTmp = sizeof(dwStatusCode);
- WinHttpQueryHeaders(hRequest,WINHTTP_QUERY_STATUS_CODE| WINHTTP_QUERY_FLAG_NUMBER,NULL,&dwStatusCode,&dwTmp,NULL);
-
- DWORD dwSize;
- do {
- dwSize = 0;
- if (!WinHttpQueryDataAvailable(hRequest,&dwSize)) {
- _handler(_arg,-1,_url,"receive error (1)");
- goto closeAndReturnFromHttp;
- }
-
- {
- Mutex::Lock _rl(_hRequest_m);
- if (!_hRequest) {
- _handler(_arg,-1,_url,"request cancelled");
- goto closeAndReturnFromHttp;
- }
- }
-
- char *outBuffer = new char[dwSize];
- DWORD dwRead = 0;
- if (!WinHttpReadData(hRequest,(LPVOID)outBuffer,dwSize,&dwRead)) {
- _handler(_arg,-1,_url,"receive error (2)");
- goto closeAndReturnFromHttp;
- }
-
- {
- Mutex::Lock _rl(_hRequest_m);
- if (!_hRequest) {
- _handler(_arg,-1,_url,"request cancelled");
- goto closeAndReturnFromHttp;
- }
-
- _body.append(outBuffer,dwRead);
- delete [] outBuffer;
- if (_body.length() > WIN_MAX_MESSAGE_LENGTH) {
- _handler(_arg,-1,_url,"result too large");
- goto closeAndReturnFromHttp;
- }
- }
- } while ((dwSize > 0)&&(_hRequest));
-
- {
- Mutex::Lock _rl(_hRequest_m);
- if (!_hRequest) {
- _handler(_arg,-1,_url,"request cancelled");
- goto closeAndReturnFromHttp;
- }
-
- _handler(_arg,dwStatusCode,_url,_body);
- }
- } else {
- _handler(_arg,-1,_url,"receive response failed");
- }
- } catch ( ... ) {
- _handler(_arg,-1,_url,"unexpected exception");
- }
-
-closeAndReturnFromHttp:
- {
- Mutex::Lock _rl(_hRequest_m);
- if (_hRequest) {
- WinHttpCloseHandle(_hRequest);
- _hRequest = (HINTERNET)0;
- }
- }
- if (hConnect)
- WinHttpCloseHandle(hConnect);
- if (hSession)
- WinHttpCloseHandle(hSession);
- delete this;
- return;
- }
-
- inline void cancel()
- {
- Mutex::Lock _rl(_hRequest_m);
- if (_hRequest) {
- WinHttpCloseHandle(_hRequest);
- _hRequest = (HINTERNET)0;
- }
- }
-
- const std::string _url;
- std::string _body;
- std::map<std::string,std::string> _headers;
- unsigned int _timeout;
- void (*_handler)(void *,int,const std::string &,const std::string &);
- void *_arg;
- HttpClient *_parent;
- HINTERNET _hRequest;
- Mutex _hRequest_m;
- Thread _myThread;
-};
-
-#endif // __WINDOWS__
-
-const std::map<std::string,std::string> HttpClient::NO_HEADERS;
-
-HttpClient::HttpClient()
-{
-}
-
-HttpClient::~HttpClient()
-{
- std::set<Request> reqs;
- {
- Mutex::Lock _l(_requests_m);
- reqs = _requests;
- }
-
- for(std::set<Request>::iterator r(reqs.begin());r!=reqs.end();++r)
- this->cancel(*r);
-
- for(;;) {
- _requests_m.lock();
- if (_requests.empty()) {
- _requests_m.unlock();
- break;
- } else {
- _requests_m.unlock();
- Thread::sleep(250);
- }
- }
-}
-
-void HttpClient::cancel(HttpClient::Request req)
-{
- Mutex::Lock _l(_requests_m);
- if (_requests.count(req) == 0)
- return;
- ((HttpClient_Private_Request *)req)->cancel();
-}
-
-HttpClient::Request HttpClient::_do(
- const char *method,
- const std::string &url,
- const std::map<std::string,std::string> &headers,
- unsigned int timeout,
- void (*handler)(void *,int,const std::string &,const std::string &),
- void *arg)
-{
- HttpClient::Request r = (HttpClient::Request)(new HttpClient_Private_Request(this,method,url,headers,timeout,handler,arg));
- Mutex::Lock _l(_requests_m);
- _requests.insert(r);
- return r;
-}
-
-} // namespace ZeroTier
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