bool is_matching_content_type(const utility::string_t& actual, const utility::string_t& expected)
{
// Check if the response's actual content type matches the expected content type.
// It is OK if the actual content type has additional parameters (e.g. application/json;odata=minimalmetadata;streaming=true;charset=utf-8).
return (actual.size() == expected.size() || (actual.size() > expected.size() && actual.at(expected.size()) == U(';'))) &&
std::equal(expected.cbegin(), expected.cend(), actual.cbegin());
}
void split_string(::utility::string_t& source, const ::utility::string_t& delim, std::list<::utility::string_t>& ret)
{
ret.clear();
if (delim.empty() || source.empty())
{
ret.push_back(source);
return ;
}
size_t last = 0;
size_t index = source.find(delim, last);
while (index!=std::string::npos)
{
ret.push_back(source.substr(last, index - last));
last = index + delim.size();
index = source.find(delim, last);
}
if(index - last > 0)
{
ret.push_back(source.substr(last, index - last));
}
}
utility::string_t get_object_name(const utility::string_t& object_type_name)
{
utility::string_t object_name;
object_name.reserve(37U + object_type_name.size());
object_name.append(object_name_prefix);
object_name.append(object_type_name);
object_name.append(get_random_string());
return object_name;
}
void extract_fractional_second(const utility::string_t& dateString, utility::string_t& resultString, uint64_t& ufrac_second)
{
resultString = dateString;
// First, the string must be strictly longer than 2 characters, and the trailing character must be 'Z'
if (resultString.size() > 2 && resultString[resultString.size() - 1] == U('Z'))
{
// Second, find the last non-digit by scanning the string backwards
auto last_non_digit = std::find_if_not(resultString.rbegin() + 1, resultString.rend(), is_digit);
if (last_non_digit < resultString.rend() - 1)
{
// Finally, make sure the last non-digit is a dot:
auto last_dot = last_non_digit.base() - 1;
if (*last_dot == U('.'))
{
// Got it! Now extract the fractional second
auto last_before_Z = std::end(resultString) - 1;
ufrac_second = timeticks_from_second(last_dot, last_before_Z);
// And erase it from the string
resultString.erase(last_dot, last_before_Z);
}
}
}
}
/// <summary>
/// Parses the given Content-Type header value to get out actual content type and charset.
/// If the charset isn't specified the default charset for the content type will be set.
/// </summary>
static void parse_content_type_and_charset(const utility::string_t& content_type,
utility::string_t& content,
utility::string_t& charset)
{
const size_t semi_colon_index = content_type.find_first_of(_XPLATSTR(";"));
// No charset specified.
if (semi_colon_index == utility::string_t::npos)
{
content = content_type;
trim_whitespace(content);
charset = get_default_charset(content);
return;
}
// Split into content type and second part which could be charset.
content = content_type.substr(0, semi_colon_index);
trim_whitespace(content);
utility::string_t possible_charset = content_type.substr(semi_colon_index + 1);
trim_whitespace(possible_charset);
const size_t equals_index = possible_charset.find_first_of(_XPLATSTR("="));
// No charset specified.
if (equals_index == utility::string_t::npos)
{
charset = get_default_charset(content);
return;
}
// Split and make sure 'charset'
utility::string_t charset_key = possible_charset.substr(0, equals_index);
trim_whitespace(charset_key);
if (!utility::details::str_iequal(charset_key, _XPLATSTR("charset")))
{
charset = get_default_charset(content);
return;
}
charset = possible_charset.substr(equals_index + 1);
// Remove the redundant ';' at the end of charset.
while (charset.back() == ';')
{
charset.pop_back();
}
trim_whitespace(charset);
if (charset.front() == _XPLATSTR('"') && charset.back() == _XPLATSTR('"'))
{
charset = charset.substr(1, charset.size() - 2);
trim_whitespace(charset);
}
}
/// <summary>
/// Determines whether or not the given content type is 'textual' according the feature specifications.
/// </summary>
static bool is_content_type_textual(const utility::string_t& content_type)
{
#if !defined(_WIN32) || _MSC_VER >= 1900
static const utility::string_t textual_types[] = {mime_types::message_http,
mime_types::application_json,
mime_types::application_xml,
mime_types::application_atom_xml,
mime_types::application_http,
mime_types::application_x_www_form_urlencoded};
#endif
if (content_type.size() >= 4 && utility::details::str_iequal(content_type.substr(0, 4), _XPLATSTR("text")))
{
return true;
}
return (is_content_type_one_of(std::begin(textual_types), std::end(textual_types), content_type));
}
::utility::string_t strip_string(const ::utility::string_t& escaped)
{
::utility::string_t::size_type first = 0;
::utility::string_t::size_type size = escaped.size();
if (escaped.empty())
{
return escaped;
}
if (escaped[0] == U('"'))
{
first += 1;
}
if (escaped[size - 1] == U('"'))
{
size -= 1;
}
return escaped.substr(first, size - first);
}
std::map<utility::string_t, utility::string_t> uri::split_query(const utility::string_t &query)
{
std::map<utility::string_t, utility::string_t> results;
// Split into key value pairs separated by '&'.
size_t prev_amp_index = 0;
while(prev_amp_index != utility::string_t::npos)
{
size_t amp_index = query.find_first_of(_XPLATSTR('&'), prev_amp_index);
if (amp_index == utility::string_t::npos)
amp_index = query.find_first_of(_XPLATSTR(';'), prev_amp_index);
utility::string_t key_value_pair = query.substr(
prev_amp_index,
amp_index == utility::string_t::npos ? query.size() - prev_amp_index : amp_index - prev_amp_index);
prev_amp_index = amp_index == utility::string_t::npos ? utility::string_t::npos : amp_index + 1;
size_t equals_index = key_value_pair.find_first_of(_XPLATSTR('='));
if(equals_index == utility::string_t::npos)
{
continue;
}
else if (equals_index == 0)
{
utility::string_t value(key_value_pair.begin() + equals_index + 1, key_value_pair.end());
results[_XPLATSTR("")] = value;
}
else
{
utility::string_t key(key_value_pair.begin(), key_value_pair.begin() + equals_index);
utility::string_t value(key_value_pair.begin() + equals_index + 1, key_value_pair.end());
results[key] = value;
}
}
return results;
}
std::vector<unsigned char> _from_base64(const utility::string_t& input)
{
std::vector<unsigned char> result;
if ( input.empty() )
return result;
size_t padding = 0;
// Validation
{
auto size = input.size();
if ( (size % 4) != 0 )
{
throw std::runtime_error("length of base64 string is not an even multiple of 4");
}
for (auto iter = input.begin(); iter != input.end(); ++iter,--size)
{
auto ch = *iter;
if ( ch < 0 || _base64_dectbl[ch] == 255 )
{
throw std::runtime_error("invalid character found in base64 string");
}
if ( _base64_dectbl[ch] == 254 )
{
padding++;
// padding only at the end
if ( size > 2 || (size == 2 && _base64_dectbl[*(iter+1)] != 254) )
{
throw std::runtime_error("invalid padding character found in base64 string");
}
}
}
}
auto size = input.size();
const char_t* ptr = &input[0];
auto outsz = (size / 4)*3;
outsz -= padding;
result.resize(outsz);
size_t idx = 0;
for (; size > 4; ++idx )
{
unsigned char target[3];
memset(target, 0, sizeof(target));
_triple_byte* record = reinterpret_cast<_triple_byte*>(target);
unsigned char val0 = _base64_dectbl[ptr[0]];
unsigned char val1 = _base64_dectbl[ptr[1]];
unsigned char val2 = _base64_dectbl[ptr[2]];
unsigned char val3 = _base64_dectbl[ptr[3]];
record->_0 = val0;
record->_1_1 = val1 >> 4;
result[idx] = target[0];
record->_1_2 = val1 & 0xF;
record->_2_1 = val2 >> 2;
result[++idx] = target[1];
record->_2_2 = val2 & 0x3;
record->_3 = val3 & 0x3F;
result[++idx] = target[2];
ptr += 4;
size -= 4;
}
// Handle the last four bytes separately, to avoid having the conditional statements
// in all the iterations (a performance issue).
{
unsigned char target[3];
memset(target, 0, sizeof(target));
_triple_byte* record = reinterpret_cast<_triple_byte*>(target);
unsigned char val0 = _base64_dectbl[ptr[0]];
unsigned char val1 = _base64_dectbl[ptr[1]];
unsigned char val2 = _base64_dectbl[ptr[2]];
unsigned char val3 = _base64_dectbl[ptr[3]];
record->_0 = val0;
record->_1_1 = val1 >> 4;
result[idx] = target[0];
record->_1_2 = val1 & 0xF;
if ( val2 != 254 )
{
record->_2_1 = val2 >> 2;
result[++idx] = target[1];
}
else
{
// There shouldn't be any information (ones) in the unused bits,
if ( record->_1_2 != 0 )