5079590438

Committed 25 May 2023 12:28PM UTC coverage: 92.228% (+0.5%) from 91.723%

Build # 5079590438

Build Type

Pull #3502

github

Pull Request Pull Request #3502: Apply clang-format to the codebase

Run Details

75589 of 81959 relevant lines covered (92.23%)

12139530.51 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

93.9

/src/lib/codec/base64/base64.cpp

/*
* Base64 Encoding and Decoding
* (C) 2010,2015,2020 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/base64.h>

#include <botan/exceptn.h>
#include <botan/internal/charset.h>
#include <botan/internal/codec_base.h>
#include <botan/internal/ct_utils.h>
#include <botan/internal/fmt.h>
#include <botan/internal/rounding.h>

namespace Botan {

namespace {

class Base64 final {
   public:
      static inline std::string name() noexcept { return "base64"; }

      static inline size_t encoding_bytes_in() noexcept { return m_encoding_bytes_in; }

      static inline size_t encoding_bytes_out() noexcept { return m_encoding_bytes_out; }

      static inline size_t decoding_bytes_in() noexcept { return m_encoding_bytes_out; }

      static inline size_t decoding_bytes_out() noexcept { return m_encoding_bytes_in; }

      static inline size_t bits_consumed() noexcept { return m_encoding_bits; }

      static inline size_t remaining_bits_before_padding() noexcept { return m_remaining_bits_before_padding; }

      static inline size_t encode_max_output(size_t input_length) {
         return (round_up(input_length, m_encoding_bytes_in) / m_encoding_bytes_in) * m_encoding_bytes_out;
      }

      static inline size_t decode_max_output(size_t input_length) {
         return (round_up(input_length, m_encoding_bytes_out) * m_encoding_bytes_in) / m_encoding_bytes_out;
      }

      static void encode(char out[8], const uint8_t in[5]) noexcept;

      static uint8_t lookup_binary_value(char input) noexcept;

      static bool check_bad_char(uint8_t bin, char input, bool ignore_ws);

      static void decode(uint8_t* out_ptr, const uint8_t decode_buf[4]) {
         out_ptr[0] = (decode_buf[0] << 2) | (decode_buf[1] >> 4);
         out_ptr[1] = (decode_buf[1] << 4) | (decode_buf[2] >> 2);
         out_ptr[2] = (decode_buf[2] << 6) | decode_buf[3];
      }

      static inline size_t bytes_to_remove(size_t final_truncate) { return final_truncate; }

   private:
      static const size_t m_encoding_bits = 6;
      static const size_t m_remaining_bits_before_padding = 8;

      static const size_t m_encoding_bytes_in = 3;
      static const size_t m_encoding_bytes_out = 4;
};

char lookup_base64_char(uint8_t x) {
   BOTAN_DEBUG_ASSERT(x < 64);

   const auto in_AZ = CT::Mask<uint8_t>::is_lt(x, 26);
   const auto in_09 = CT::Mask<uint8_t>::is_within_range(x, 52, 61);
   const auto eq_plus = CT::Mask<uint8_t>::is_equal(x, 62);
   const auto eq_slash = CT::Mask<uint8_t>::is_equal(x, 63);

   const char c_AZ = 'A' + x;
   const char c_az = 'a' + (x - 26);
   const char c_09 = '0' + (x - 2 * 26);
   const char c_plus = '+';
   const char c_slash = '/';

   char ret = c_az;
   ret = in_AZ.select(c_AZ, ret);
   ret = in_09.select(c_09, ret);
   ret = eq_plus.select(c_plus, ret);
   ret = eq_slash.select(c_slash, ret);

   return ret;
}

//static
void Base64::encode(char out[8], const uint8_t in[5]) noexcept {
   const uint8_t b0 = (in[0] & 0xFC) >> 2;
   const uint8_t b1 = ((in[0] & 0x03) << 4) | (in[1] >> 4);
   const uint8_t b2 = ((in[1] & 0x0F) << 2) | (in[2] >> 6);
   const uint8_t b3 = in[2] & 0x3F;
   out[0] = lookup_base64_char(b0);
   out[1] = lookup_base64_char(b1);
   out[2] = lookup_base64_char(b2);
   out[3] = lookup_base64_char(b3);
}

//static
uint8_t Base64::lookup_binary_value(char input) noexcept {
   const uint8_t c = static_cast<uint8_t>(input);

   const auto is_alpha_upper = CT::Mask<uint8_t>::is_within_range(c, uint8_t('A'), uint8_t('Z'));
   const auto is_alpha_lower = CT::Mask<uint8_t>::is_within_range(c, uint8_t('a'), uint8_t('z'));
   const auto is_decimal = CT::Mask<uint8_t>::is_within_range(c, uint8_t('0'), uint8_t('9'));

   const auto is_plus = CT::Mask<uint8_t>::is_equal(c, uint8_t('+'));
   const auto is_slash = CT::Mask<uint8_t>::is_equal(c, uint8_t('/'));
   const auto is_equal = CT::Mask<uint8_t>::is_equal(c, uint8_t('='));

   const auto is_whitespace =
      CT::Mask<uint8_t>::is_any_of(c, {uint8_t(' '), uint8_t('\t'), uint8_t('\n'), uint8_t('\r')});

   const uint8_t c_upper = c - uint8_t('A');
   const uint8_t c_lower = c - uint8_t('a') + 26;
   const uint8_t c_decim = c - uint8_t('0') + 2 * 26;

   uint8_t ret = 0xFF;  // default value

   ret = is_alpha_upper.select(c_upper, ret);
   ret = is_alpha_lower.select(c_lower, ret);
   ret = is_decimal.select(c_decim, ret);
   ret = is_plus.select(62, ret);
   ret = is_slash.select(63, ret);
   ret = is_equal.select(0x81, ret);
   ret = is_whitespace.select(0x80, ret);

   return ret;
}

//static
bool Base64::check_bad_char(uint8_t bin, char input, bool ignore_ws) {
   if(bin <= 0x3F) {
      return true;
   } else if(!(bin == 0x81 || (bin == 0x80 && ignore_ws))) {
      throw Invalid_Argument(fmt("base64_decode: invalid character '{}'", format_char_for_display(input)));
   }
   return false;
}

}

size_t base64_encode(char out[], const uint8_t in[], size_t input_length, size_t& input_consumed, bool final_inputs) {
   return base_encode(Base64(), out, in, input_length, input_consumed, final_inputs);
}

std::string base64_encode(const uint8_t input[], size_t input_length) {
   return base_encode_to_string(Base64(), input, input_length);
}

size_t base64_decode(
   uint8_t out[], const char in[], size_t input_length, size_t& input_consumed, bool final_inputs, bool ignore_ws) {
   return base_decode(Base64(), out, in, input_length, input_consumed, final_inputs, ignore_ws);
}

size_t base64_decode(uint8_t output[], const char input[], size_t input_length, bool ignore_ws) {
   return base_decode_full(Base64(), output, input, input_length, ignore_ws);
}

size_t base64_decode(uint8_t output[], std::string_view input, bool ignore_ws) {
   return base64_decode(output, input.data(), input.length(), ignore_ws);
}

size_t base64_decode(std::span<uint8_t> output, std::string_view input, bool ignore_ws) {
   if(output.size() < base64_decode_max_output(input.size())) {
      throw Invalid_Argument("base64_decode: output buffer is too short");
   }
   return base64_decode(output.data(), input.data(), input.length(), ignore_ws);
}

secure_vector<uint8_t> base64_decode(const char input[], size_t input_length, bool ignore_ws) {
   return base_decode_to_vec<secure_vector<uint8_t>>(Base64(), input, input_length, ignore_ws);
}

secure_vector<uint8_t> base64_decode(std::string_view input, bool ignore_ws) {
   return base64_decode(input.data(), input.size(), ignore_ws);
}

size_t base64_encode_max_output(size_t input_length) { return Base64::encode_max_output(input_length); }

size_t base64_decode_max_output(size_t input_length) { return Base64::decode_max_output(input_length); }

}

1	/*
2	* Base64 Encoding and Decoding
3	* (C) 2010,2015,2020 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/base64.h>
9
10	#include <botan/exceptn.h>
11	#include <botan/internal/charset.h>
12	#include <botan/internal/codec_base.h>
13	#include <botan/internal/ct_utils.h>
14	#include <botan/internal/fmt.h>
15	#include <botan/internal/rounding.h>
16
17	namespace Botan {
18
19	namespace {
20
21	class Base64 final {
22	public:
23	static inline std::string name() noexcept { return "base64"; }	14✔
24
25	static inline size_t encoding_bytes_in() noexcept { return m_encoding_bytes_in; }
26
27	static inline size_t encoding_bytes_out() noexcept { return m_encoding_bytes_out; }
28
29	static inline size_t decoding_bytes_in() noexcept { return m_encoding_bytes_out; }
30
31	static inline size_t decoding_bytes_out() noexcept { return m_encoding_bytes_in; }
32
33	static inline size_t bits_consumed() noexcept { return m_encoding_bits; }
34
35	static inline size_t remaining_bits_before_padding() noexcept { return m_remaining_bits_before_padding; }
36
37	static inline size_t encode_max_output(size_t input_length) {	2,131✔
38	return (round_up(input_length, m_encoding_bytes_in) / m_encoding_bytes_in) * m_encoding_bytes_out;	3,986✔
39	}
40
41	static inline size_t decode_max_output(size_t input_length) {	22,912✔
42	return (round_up(input_length, m_encoding_bytes_out) * m_encoding_bytes_in) / m_encoding_bytes_out;	41,540✔
43	}
44
45	static void encode(char out[8], const uint8_t in[5]) noexcept;
46
47	static uint8_t lookup_binary_value(char input) noexcept;
48
49	static bool check_bad_char(uint8_t bin, char input, bool ignore_ws);
50
51	static void decode(uint8_t* out_ptr, const uint8_t decode_buf[4]) {	3,857,806✔
52	out_ptr[0] = (decode_buf[0] << 2) \| (decode_buf[1] >> 4);	3,857,806✔
53	out_ptr[1] = (decode_buf[1] << 4) \| (decode_buf[2] >> 2);	3,857,806✔
54	out_ptr[2] = (decode_buf[2] << 6) \| decode_buf[3];	3,857,806✔
55	}
56
57	static inline size_t bytes_to_remove(size_t final_truncate) { return final_truncate; }
58
59	private:
60	static const size_t m_encoding_bits = 6;
61	static const size_t m_remaining_bits_before_padding = 8;
62
63	static const size_t m_encoding_bytes_in = 3;
64	static const size_t m_encoding_bytes_out = 4;
65	};
66
67	char lookup_base64_char(uint8_t x) {	2,324,356✔
68	BOTAN_DEBUG_ASSERT(x < 64);	2,324,356✔
69
70	const auto in_AZ = CT::Mask<uint8_t>::is_lt(x, 26);	2,324,356✔
71	const auto in_09 = CT::Mask<uint8_t>::is_within_range(x, 52, 61);	2,324,356✔
72	const auto eq_plus = CT::Mask<uint8_t>::is_equal(x, 62);	2,324,356✔
73	const auto eq_slash = CT::Mask<uint8_t>::is_equal(x, 63);	2,324,356✔
74
75	const char c_AZ = 'A' + x;	2,324,356✔
76	const char c_az = 'a' + (x - 26);	2,324,356✔
77	const char c_09 = '0' + (x - 2 * 26);	2,324,356✔
78	const char c_plus = '+';	2,324,356✔
79	const char c_slash = '/';	2,324,356✔
80
81	char ret = c_az;	2,324,356✔
82	ret = in_AZ.select(c_AZ, ret);	2,324,356✔
83	ret = in_09.select(c_09, ret);	2,324,356✔
84	ret = eq_plus.select(c_plus, ret);	2,324,356✔
85	ret = eq_slash.select(c_slash, ret);	2,324,356✔
86
87	return ret;	2,324,356✔
88	}
89
90	//static
91	void Base64::encode(char out[8], const uint8_t in[5]) noexcept {	581,089✔
92	const uint8_t b0 = (in[0] & 0xFC) >> 2;	581,089✔
93	const uint8_t b1 = ((in[0] & 0x03) << 4) \| (in[1] >> 4);	581,089✔
94	const uint8_t b2 = ((in[1] & 0x0F) << 2) \| (in[2] >> 6);	581,089✔
95	const uint8_t b3 = in[2] & 0x3F;	581,089✔
96	out[0] = lookup_base64_char(b0);	581,089✔
97	out[1] = lookup_base64_char(b1);	581,089✔
98	out[2] = lookup_base64_char(b2);	581,089✔
99	out[3] = lookup_base64_char(b3);	581,089✔
100	}	581,089✔
101
102	//static
103	uint8_t Base64::lookup_binary_value(char input) noexcept {	15,696,533✔
104	const uint8_t c = static_cast<uint8_t>(input);	15,696,533✔
105
106	const auto is_alpha_upper = CT::Mask<uint8_t>::is_within_range(c, uint8_t('A'), uint8_t('Z'));	15,696,533✔
107	const auto is_alpha_lower = CT::Mask<uint8_t>::is_within_range(c, uint8_t('a'), uint8_t('z'));	15,696,533✔
108	const auto is_decimal = CT::Mask<uint8_t>::is_within_range(c, uint8_t('0'), uint8_t('9'));	15,696,533✔
109
110	const auto is_plus = CT::Mask<uint8_t>::is_equal(c, uint8_t('+'));	15,696,533✔
111	const auto is_slash = CT::Mask<uint8_t>::is_equal(c, uint8_t('/'));	15,696,533✔
112	const auto is_equal = CT::Mask<uint8_t>::is_equal(c, uint8_t('='));	15,696,533✔
113
114	const auto is_whitespace =	15,696,533✔
115	CT::Mask<uint8_t>::is_any_of(c, {uint8_t(' '), uint8_t('\t'), uint8_t('\n'), uint8_t('\r')});	15,696,533✔
116
117	const uint8_t c_upper = c - uint8_t('A');	15,696,533✔
118	const uint8_t c_lower = c - uint8_t('a') + 26;	15,696,533✔
119	const uint8_t c_decim = c - uint8_t('0') + 2 * 26;	15,696,533✔
120
121	uint8_t ret = 0xFF; // default value	15,696,533✔
122
123	ret = is_alpha_upper.select(c_upper, ret);	15,696,533✔
124	ret = is_alpha_lower.select(c_lower, ret);	15,696,533✔
125	ret = is_decimal.select(c_decim, ret);	15,696,533✔
126	ret = is_plus.select(62, ret);	15,696,533✔
127	ret = is_slash.select(63, ret);	15,696,533✔
128	ret = is_equal.select(0x81, ret);	15,696,533✔
129	ret = is_whitespace.select(0x80, ret);	15,696,533✔
130
131	return ret;	15,696,533✔
132	}
133
134	//static
135	bool Base64::check_bad_char(uint8_t bin, char input, bool ignore_ws) {	15,690,527✔
136	if(bin <= 0x3F) {	15,690,527✔
137	return true;
138	} else if(!(bin == 0x81 \|\| (bin == 0x80 && ignore_ws))) {	268,810✔
139	throw Invalid_Argument(fmt("base64_decode: invalid character '{}'", format_char_for_display(input)));	76✔
140	}
141	return false;
142	}
143
144	}
145
146	size_t base64_encode(char out[], const uint8_t in[], size_t input_length, size_t& input_consumed, bool final_inputs) {	8✔
147	return base_encode(Base64(), out, in, input_length, input_consumed, final_inputs);	8✔
148	}
149
150	std::string base64_encode(const uint8_t input[], size_t input_length) {	2,131✔
151	return base_encode_to_string(Base64(), input, input_length);	2,131✔
152	}
153
154	size_t base64_decode(	2✔
155	uint8_t out[], const char in[], size_t input_length, size_t& input_consumed, bool final_inputs, bool ignore_ws) {
156	return base_decode(Base64(), out, in, input_length, input_consumed, final_inputs, ignore_ws);	2✔
157	}
158
159	size_t base64_decode(uint8_t output[], const char input[], size_t input_length, bool ignore_ws) {	17✔
160	return base_decode_full(Base64(), output, input, input_length, ignore_ws);	17✔
161	}
162
163	size_t base64_decode(uint8_t output[], std::string_view input, bool ignore_ws) {	17✔
164	return base64_decode(output, input.data(), input.length(), ignore_ws);	17✔
165	}
166
167	size_t base64_decode(std::span<uint8_t> output, std::string_view input, bool ignore_ws) {	×
168	if(output.size() < base64_decode_max_output(input.size())) {	×
169	throw Invalid_Argument("base64_decode: output buffer is too short");	×
170	}
171	return base64_decode(output.data(), input.data(), input.length(), ignore_ws);	×
172	}
173
174	secure_vector<uint8_t> base64_decode(const char input[], size_t input_length, bool ignore_ws) {	11,437✔
175	return base_decode_to_vec<secure_vector<uint8_t>>(Base64(), input, input_length, ignore_ws);	11,437✔
176	}
177
178	secure_vector<uint8_t> base64_decode(std::string_view input, bool ignore_ws) {	659✔
179	return base64_decode(input.data(), input.size(), ignore_ws);	659✔
180	}
181
182	size_t base64_encode_max_output(size_t input_length) { return Base64::encode_max_output(input_length); }	×
183
184	size_t base64_decode_max_output(size_t input_length) { return Base64::decode_max_output(input_length); }	19✔
185
186	}

randombit / botan / 5079590438

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous