13262741994

Committed 11 Feb 2025 12:19PM UTC coverage: 91.656% (-0.003%) from 91.659%

Build # 13262741994

Build Type

Pull #4647

github

Committed by

web-flow

Commit Message

Merge 0b8e56724 into f372b5a9e

Pull Request Pull Request #4647: Avoid using mem_ops.h or assert.h in public headers

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82.72

/src/lib/filters/b64_filt.cpp

/*
* Base64 Encoder/Decoder
* (C) 1999-2010 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/filters.h>

#include <botan/base64.h>
#include <botan/exceptn.h>
#include <botan/mem_ops.h>
#include <algorithm>

namespace Botan {

/*
* Base64_Encoder Constructor
*/
Base64_Encoder::Base64_Encoder(bool line_breaks, size_t line_length, bool trailing_newline) :
      m_line_length(line_breaks ? line_length : 0),
      m_trailing_newline(trailing_newline && line_breaks),
      m_in(48),
      m_out(64),
      m_position(0),
      m_out_position(0) {}

/*
* Encode and send a block
*/
void Base64_Encoder::encode_and_send(const uint8_t input[], size_t length, bool final_inputs) {
   while(length) {
      const size_t proc = std::min(length, m_in.size());

      size_t consumed = 0;
      size_t produced = base64_encode(cast_uint8_ptr_to_char(m_out.data()), input, proc, consumed, final_inputs);

      do_output(m_out.data(), produced);

      // FIXME: s/proc/consumed/?
      input += proc;
      length -= proc;
   }
}

/*
* Handle the output
*/
void Base64_Encoder::do_output(const uint8_t input[], size_t length) {
   if(m_line_length == 0) {
      send(input, length);
   } else {
      size_t remaining = length, offset = 0;
      while(remaining) {
         size_t sent = std::min(m_line_length - m_out_position, remaining);
         send(input + offset, sent);
         m_out_position += sent;
         remaining -= sent;
         offset += sent;
         if(m_out_position == m_line_length) {
            send('\n');
            m_out_position = 0;
         }
      }
   }
}

/*
* Convert some data into Base64
*/
void Base64_Encoder::write(const uint8_t input[], size_t length) {
   const size_t initial_fill = std::min(m_in.size() - m_position, length);
   copy_mem(&m_in[m_position], input, initial_fill);

   if(m_position + length >= m_in.size()) {
      encode_and_send(m_in.data(), m_in.size());
      input += (m_in.size() - m_position);
      length -= (m_in.size() - m_position);
      while(length >= m_in.size()) {
         encode_and_send(input, m_in.size());
         input += m_in.size();
         length -= m_in.size();
      }
      copy_mem(m_in.data(), input, length);
      m_position = 0;
   }
   m_position += length;
}

/*
* Flush buffers
*/
void Base64_Encoder::end_msg() {
   encode_and_send(m_in.data(), m_position, true);

   if(m_trailing_newline || (m_out_position && m_line_length)) {
      send('\n');
   }

   m_out_position = m_position = 0;
}

/*
* Base64_Decoder Constructor
*/
Base64_Decoder::Base64_Decoder(Decoder_Checking c) : m_checking(c), m_in(64), m_out(48), m_position(0) {}

/*
* Convert some data from Base64
*/
void Base64_Decoder::write(const uint8_t input[], size_t length) {
   while(length) {
      size_t to_copy = std::min<size_t>(length, m_in.size() - m_position);
      if(to_copy == 0) {
         m_in.resize(m_in.size() * 2);
         m_out.resize(m_out.size() * 2);
      }
      copy_mem(&m_in[m_position], input, to_copy);
      m_position += to_copy;

      size_t consumed = 0;
      size_t written = base64_decode(
         m_out.data(), cast_uint8_ptr_to_char(m_in.data()), m_position, consumed, false, m_checking != FULL_CHECK);

      send(m_out, written);

      if(consumed != m_position) {
         copy_mem(m_in.data(), m_in.data() + consumed, m_position - consumed);
         m_position = m_position - consumed;
      } else {
         m_position = 0;
      }

      length -= to_copy;
      input += to_copy;
   }
}

/*
* Flush buffers
*/
void Base64_Decoder::end_msg() {
   size_t consumed = 0;
   size_t written = base64_decode(
      m_out.data(), cast_uint8_ptr_to_char(m_in.data()), m_position, consumed, true, m_checking != FULL_CHECK);

   send(m_out, written);

   const bool not_full_bytes = consumed != m_position;

   m_position = 0;

   if(not_full_bytes) {
      throw Invalid_Argument("Base64_Decoder: Input not full bytes");
   }
}

}  // namespace Botan

1	/*
2	* Base64 Encoder/Decoder
3	* (C) 1999-2010 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/filters.h>
9
10	#include <botan/base64.h>
11	#include <botan/exceptn.h>
12	#include <botan/mem_ops.h>
13	#include <algorithm>
14
15	namespace Botan {
16
17	/*
18	* Base64_Encoder Constructor
19	*/
20	Base64_Encoder::Base64_Encoder(bool line_breaks, size_t line_length, bool trailing_newline) :	5✔
21	m_line_length(line_breaks ? line_length : 0),	10✔
22	m_trailing_newline(trailing_newline && line_breaks),	5✔
23	m_in(48),	5✔
24	m_out(64),	5✔
25	m_position(0),	5✔
26	m_out_position(0) {}	10✔
27
28	/*
29	* Encode and send a block
30	*/
31	void Base64_Encoder::encode_and_send(const uint8_t input[], size_t length, bool final_inputs) {	8✔
32	while(length) {	16✔
33	const size_t proc = std::min(length, m_in.size());	8✔
34
35	size_t consumed = 0;	8✔
36	size_t produced = base64_encode(cast_uint8_ptr_to_char(m_out.data()), input, proc, consumed, final_inputs);	8✔
37
38	do_output(m_out.data(), produced);	8✔
39
40	// FIXME: s/proc/consumed/?
41	input += proc;	8✔
42	length -= proc;	8✔
43	}
44	}	8✔
45
46	/*
47	* Handle the output
48	*/
49	void Base64_Encoder::do_output(const uint8_t input[], size_t length) {	8✔
50	if(m_line_length == 0) {	8✔
51	send(input, length);	6✔
52	} else {
53	size_t remaining = length, offset = 0;	2✔
54	while(remaining) {	8✔
55	size_t sent = std::min(m_line_length - m_out_position, remaining);	6✔
56	send(input + offset, sent);	6✔
57	m_out_position += sent;	6✔
58	remaining -= sent;	6✔
59	offset += sent;	6✔
60	if(m_out_position == m_line_length) {	6✔
61	send('\n');	5✔
62	m_out_position = 0;	5✔
63	}
64	}
65	}
66	}	8✔
67
68	/*
69	* Convert some data into Base64
70	*/
71	void Base64_Encoder::write(const uint8_t input[], size_t length) {	8✔
72	const size_t initial_fill = std::min(m_in.size() - m_position, length);	8✔
73	copy_mem(&m_in[m_position], input, initial_fill);	8✔
74
75	if(m_position + length >= m_in.size()) {	8✔
76	encode_and_send(m_in.data(), m_in.size());	×
77	input += (m_in.size() - m_position);	×
78	length -= (m_in.size() - m_position);	×
79	while(length >= m_in.size()) {	×
80	encode_and_send(input, m_in.size());	×
81	input += m_in.size();	×
82	length -= m_in.size();	×
83	}
84	copy_mem(m_in.data(), input, length);	×
85	m_position = 0;	×
86	}
87	m_position += length;	8✔
88	}	8✔
89
90	/*
91	* Flush buffers
92	*/
93	void Base64_Encoder::end_msg() {	8✔
94	encode_and_send(m_in.data(), m_position, true);	8✔
95
96	if(m_trailing_newline \|\| (m_out_position && m_line_length)) {	8✔
97	send('\n');	2✔
98	}
99
100	m_out_position = m_position = 0;	8✔
101	}	8✔
102
103	/*
104	* Base64_Decoder Constructor
105	*/
106	Base64_Decoder::Base64_Decoder(Decoder_Checking c) : m_checking(c), m_in(64), m_out(48), m_position(0) {}	1✔
107
108	/*
109	* Convert some data from Base64
110	*/
111	void Base64_Decoder::write(const uint8_t input[], size_t length) {	1✔
112	while(length) {	2✔
113	size_t to_copy = std::min<size_t>(length, m_in.size() - m_position);	1✔
114	if(to_copy == 0) {	1✔
115	m_in.resize(m_in.size() * 2);	×
116	m_out.resize(m_out.size() * 2);	×
117	}
118	copy_mem(&m_in[m_position], input, to_copy);	1✔
119	m_position += to_copy;	1✔
120
121	size_t consumed = 0;	1✔
122	size_t written = base64_decode(	2✔
123	m_out.data(), cast_uint8_ptr_to_char(m_in.data()), m_position, consumed, false, m_checking != FULL_CHECK);	1✔
124
125	send(m_out, written);	1✔
126
127	if(consumed != m_position) {	1✔
128	copy_mem(m_in.data(), m_in.data() + consumed, m_position - consumed);	×
129	m_position = m_position - consumed;	×
130	} else {
131	m_position = 0;	1✔
132	}
133
134	length -= to_copy;	1✔
135	input += to_copy;	1✔
136	}
137	}	1✔
138
139	/*
140	* Flush buffers
141	*/
142	void Base64_Decoder::end_msg() {	1✔
143	size_t consumed = 0;	1✔
144	size_t written = base64_decode(	2✔
145	m_out.data(), cast_uint8_ptr_to_char(m_in.data()), m_position, consumed, true, m_checking != FULL_CHECK);	1✔
146
147	send(m_out, written);	1✔
148
149	const bool not_full_bytes = consumed != m_position;	1✔
150
151	m_position = 0;	1✔
152
153	if(not_full_bytes) {	1✔
154	throw Invalid_Argument("Base64_Decoder: Input not full bytes");	×
155	}
156	}	1✔
157
158	} // namespace Botan

randombit / botan / 13262741994

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