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/*
* Author: Sven Gothel <sgothel@jausoft.com>
* Copyright (c) 2020 Gothel Software e.K.
* Copyright (c) 2020 ZAFENA AB
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <cstring>
#include <string>
#include <algorithm>
#include <memory>
#include <cstdint>
#include <vector>
#include <cstdio>
#include "direct_bt/DBTEnv.hpp"
#include "direct_bt/dbt_debug.hpp"
using namespace direct_bt;
const uint64_t DBTEnv::startupTimeMilliseconds = direct_bt::getCurrentMilliseconds();
bool DBTEnv::debug = false;
static const std::string s_true("true");
static const std::string s_false("false");
std::string DBTEnv::getProperty(const std::string & name) noexcept {
const char * value = getenv(name.c_str());
if( nullptr != value ) {
COND_PRINT(debug, "DBTEnv::getProperty0 '%s': '%s'", name.c_str(), value);
return std::string( value );
}
if( std::string::npos != name.find('.', 0) ) {
// Retry with '.' -> '_' to please unix shell
std::string alt_name(name);
std::replace( alt_name.begin(), alt_name.end(), '.', '_');
value = getenv(alt_name.c_str());
if( nullptr != value ) {
COND_PRINT(debug, "DBTEnv::getProperty0 '%s' -> '%s': '%s'", name.c_str(), alt_name.c_str(), value);
return std::string( value );
}
COND_PRINT(debug, "DBTEnv::getProperty0 '%s' -> '%s': NOT FOUND", name.c_str(), alt_name.c_str());
} else {
COND_PRINT(debug, "DBTEnv::getProperty0 '%s': NOT FOUND", name.c_str());
}
// not found: empty string
return std::string();
}
std::string DBTEnv::getProperty(const std::string & name, const std::string & default_value) noexcept {
const std::string value = getProperty(name);
if( 0 == value.length() ) {
COND_PRINT(debug, "DBTEnv::getProperty1 %s: null -> %s (default)", name.c_str(), default_value.c_str());
return default_value;
} else {
COND_PRINT(debug, "DBTEnv::getProperty1 %s (default %s): %s", name.c_str(), default_value.c_str(), value.c_str());
return value;
}
}
bool DBTEnv::getBooleanProperty(const std::string & name, const bool default_value) noexcept {
const std::string value = getProperty(name);
if( 0 == value.length() ) {
COND_PRINT(debug, "DBTEnv::getBooleanProperty %s: null -> %d (default)", name.c_str(), default_value);
return default_value;
} else {
const bool res = "true" == value;
COND_PRINT(debug, "DBTEnv::getBooleanProperty %s (default %d): %d/%s", name.c_str(), default_value, res, value.c_str());
return res;
}
}
#include <limits.h>
int32_t DBTEnv::getInt32Property(const std::string & name, const int32_t default_value,
const int32_t min_allowed, const int32_t max_allowed) noexcept
{
const std::string value = getProperty(name);
if( 0 == value.length() ) {
COND_PRINT(debug, "DBTEnv::getInt32Property %s: null -> %" PRId32 " (default)", name.c_str(), default_value);
return default_value;
} else {
int32_t res = default_value;
char *endptr = NULL;
const long int res0 = strtol(value.c_str(), &endptr, 10);
if( *endptr == '\0' ) {
// string value completely valid
if( INT32_MIN <= res0 && res0 <= INT32_MAX ) {
// matching int32_t value range
const int32_t res1 = (int32_t)res0;
if( min_allowed <= res1 && res1 <= max_allowed ) {
// matching user value range
res = res1;
COND_PRINT(debug, "DBTEnv::getInt32Property %s (default %" PRId32 "): %" PRId32 "/%s",
name.c_str(), default_value, res, value.c_str());
} else {
// invalid user value range
ERR_PRINT("DBTEnv::getInt32Property %s: %" PRId32 "/%s (invalid user range [% " PRId32 "..%" PRId32 "]) -> %" PRId32 " (default)",
name.c_str(), res1, value.c_str(), min_allowed, max_allowed, res);
}
} else {
// invalid int32_t range
ERR_PRINT("DBTEnv::getInt32Property %s: %" PRIu64 "/%s (invalid int32_t range) -> %" PRId32 " (default)",
name.c_str(), (uint64_t)res0, value.c_str(), res);
}
} else {
// string value not fully valid
ERR_PRINT("DBTEnv::getInt32Property %s: %s (invalid string) -> %" PRId32 " (default)",
name.c_str(), value.c_str(), res);
}
return res;
}
}
uint32_t DBTEnv::getUint32Property(const std::string & name, const uint32_t default_value,
const uint32_t min_allowed, const uint32_t max_allowed) noexcept
{
const std::string value = getProperty(name);
if( 0 == value.length() ) {
COND_PRINT(debug, "DBTEnv::getUint32Property %s: null -> %" PRIu32 " (default)", name.c_str(), default_value);
return default_value;
} else {
uint32_t res = default_value;
char *endptr = NULL;
unsigned long int res0 = strtoul(value.c_str(), &endptr, 10);
if( *endptr == '\0' ) {
// string value completely valid
if( res0 <= UINT32_MAX ) {
// matching uint32_t value range
const uint32_t res1 = (uint32_t)res0;
if( min_allowed <= res1 && res1 <= max_allowed ) {
// matching user value range
res = res1;
COND_PRINT(debug, "DBTEnv::getUint32Property %s (default %" PRIu32 "): %" PRIu32 "/%s",
name.c_str(), default_value, res, value.c_str());
} else {
// invalid user value range
ERR_PRINT("DBTEnv::getUint32Property %s: %" PRIu32 "/%s (invalid user range [% " PRIu32 "..%" PRIu32 "]) -> %" PRIu32 " (default)",
name.c_str(), res1, value.c_str(), min_allowed, max_allowed, res);
}
} else {
// invalid uint32_t range
ERR_PRINT("DBTEnv::getUint32Property %s: %" PRIu64 "/%s (invalid uint32_t range) -> %" PRIu32 " (default)",
name.c_str(), (uint64_t)res0, value.c_str(), res);
}
} else {
// string value not fully valid
ERR_PRINT("DBTEnv::getUint32Property %s: %s (invalid string) -> %" PRIu32 " (default)",
name.c_str(), value.c_str(), res);
}
return res;
}
}
void DBTEnv::envSet(std::string prefixDomain, std::string basepair) noexcept {
trimInPlace(basepair);
if( basepair.length() > 0 ) {
size_t pos = 0, start = 0;
if( (pos = basepair.find('=', start)) != std::string::npos ) {
const size_t elem_len = pos-start; // excluding '='
std::string name = prefixDomain+"."+basepair.substr(start, elem_len);
std::string value = basepair.substr(pos+1, std::string::npos);
trimInPlace(name);
trimInPlace(value);
if( name.length() > 0 ) {
if( value.length() > 0 ) {
COND_PRINT(debug, "DBTEnv::setProperty %s -> %s (explode)", name.c_str(), value.c_str());
setenv(name.c_str(), value.c_str(), 1 /* overwrite */);
} else {
COND_PRINT(debug, "DBTEnv::setProperty %s -> true (explode default-1)", name.c_str());
setenv(name.c_str(), "true", 1 /* overwrite */);
}
}
} else {
const std::string name = prefixDomain+"."+basepair;
COND_PRINT(debug, "DBTEnv::setProperty %s -> true (explode default-0)", name.c_str());
setenv(name.c_str(), "true", 1 /* overwrite */);
}
}
}
void DBTEnv::envExplodeProperties(std::string prefixDomain, std::string list) noexcept {
size_t pos = 0, start = 0;
while( (pos = list.find(',', start)) != std::string::npos ) {
const size_t elem_len = pos-start; // excluding ','
envSet(prefixDomain, list.substr(start, elem_len));
start = pos+1; // skip ','
}
const size_t elem_len = list.length()-start; // last one
if( elem_len > 0 ) {
envSet(prefixDomain, list.substr(start, elem_len));
}
COND_PRINT(debug, "DBTEnv::setProperty %s -> true (explode default)", prefixDomain.c_str());
setenv(prefixDomain.c_str(), "true", 1 /* overwrite */);
}
bool DBTEnv::getExplodingProperties(const std::string & prefixDomain) noexcept {
std::string value = DBTEnv::getProperty(prefixDomain, s_false);
if( s_false == value ) {
return false;
}
if( s_true == value ) {
return true;
}
if( "direct_bt.debug" == prefixDomain ) {
debug = true;
}
envExplodeProperties(prefixDomain, value);
return true;
}
DBTEnv::DBTEnv() noexcept
: DEBUG( getExplodingProperties("direct_bt.debug") ),
DEBUG_JNI( getBooleanProperty("direct_bt.debug.jni", false) ),
VERBOSE( getExplodingProperties("direct_bt.verbose") || DBTEnv::DEBUG )
{
}
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