utils.h
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#ifndef UTILS_H
#define UTILS_H
#include <string.h>
#include <errno.h>
#include <string>
#include <list>
#include <limits>
#include <vector>
#include <algorithm>
#include <openssl/evp.h>
#include "cirbuf.h"
template<typename T> int check(int rc)
{
if (rc < 0)
{
char *err = strerror(errno);
std::string msg(err);
throw T(msg);
}
return rc;
}
std::list<std::string> split(const std::string &input, const char sep, size_t max = std::numeric_limits<int>::max(), bool keep_empty_parts = true);
std::vector<std::string> splitToVector(const std::string &input, const char sep, size_t max = std::numeric_limits<int>::max(), bool keep_empty_parts = true);
bool topicsMatch(const std::string &subscribeTopic, const std::string &publishTopic);
bool isValidUtf8(const std::string &s);
bool strContains(const std::string &s, const std::string &needle);
bool isValidPublishPath(const std::string &s);
bool containsDangerousCharacters(const std::string &s);
void ltrim(std::string &s);
void rtrim(std::string &s);
void trim(std::string &s);
bool startsWith(const std::string &s, const std::string &needle);
int64_t currentMSecsSinceEpoch();
std::string getSecureRandomString(const size_t len);
std::string str_tolower(std::string s);
bool stringTruthiness(const std::string &val);
bool isPowerOfTwo(int val);
bool parseHttpHeader(CirBuf &buf, std::string &websocket_key, int &websocket_version);
std::string base64Encode(const unsigned char *input, const int length);
std::string generateWebsocketAcceptString(const std::string &websocketKey);
std::string generateInvalidWebsocketVersionHttpHeaders(const int wantedVersion);
std::string generateBadHttpRequestReponse(const std::string &msg);
std::string generateWebsocketAnswer(const std::string &acceptString);
void testSsl(const std::string &fullchain, const std::string &privkey);
std::string formatString(const std::string str, ...);
std::string dirnameOf(const std::string& fname);
#endif // UTILS_H