GCC Code Coverage Report

Directory: libs/url/
File: libs/url/src/url_base.cpp
Date: 2024-07-10 02:48:28
Exec Total Coverage
Lines: 1367 1372 99.6%
Functions: 74 74 100.0%
Branches: 689 883 78.0%
Line Branch Exec Source
1 //
2 // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
3 // Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com)
4 //
5 // Distributed under the Boost Software License, Version 1.0. (See accompanying
6 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7 //
8 // Official repository: https://github.com/boostorg/url
9 //
10
11
12 #include <boost/url/detail/config.hpp>
13 #include <boost/url/url_base.hpp>
14 #include <boost/url/encode.hpp>
15 #include <boost/url/error.hpp>
16 #include <boost/url/host_type.hpp>
17 #include <boost/url/scheme.hpp>
18 #include <boost/url/url_view.hpp>
19 #include <boost/url/detail/any_params_iter.hpp>
20 #include <boost/url/detail/any_segments_iter.hpp>
21 #include "detail/decode.hpp"
22 #include <boost/url/detail/encode.hpp>
23 #include <boost/url/detail/except.hpp>
24 #include "detail/normalize.hpp"
25 #include "detail/path.hpp"
26 #include "detail/print.hpp"
27 #include <boost/url/grammar/ci_string.hpp>
28 #include <boost/url/rfc/authority_rule.hpp>
29 #include <boost/url/rfc/query_rule.hpp>
30 #include "rfc/detail/charsets.hpp"
31 #include "rfc/detail/host_rule.hpp"
32 #include "rfc/detail/ipvfuture_rule.hpp"
33 #include "boost/url/rfc/detail/path_rules.hpp"
34 #include "rfc/detail/port_rule.hpp"
35 #include "rfc/detail/scheme_rule.hpp"
36 #include "rfc/detail/userinfo_rule.hpp"
37 #include <boost/url/grammar/parse.hpp>
38 #include "detail/move_chars.hpp"
39 #include <cstring>
40 #include <iostream>
41 #include <stdexcept>
42 #include <utility>
43
44 namespace boost {
45 namespace urls {
46
47 //------------------------------------------------
48
49 // these objects help handle the cases
50 // where the user passes in strings that
51 // come from inside the url buffer.
52
53 8039 url_base::
54 op_t::
55 ~op_t()
56 {
57
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 8039 if(old)
58 1009 u.cleanup(*this);
59 8039 u.check_invariants();
60 8039 }
61
62 8039 url_base::
63 op_t::
64 op_t(
65 url_base& impl_,
66 core::string_view* s0_,
67 8039 core::string_view* s1_) noexcept
68 8039 : u(impl_)
69 8039 , s0(s0_)
70 8039 , s1(s1_)
71 {
72 8039 u.check_invariants();
73 8039 }
74
75 void
76 2326 url_base::
77 op_t::
78 move(
79 char* dest,
80 char const* src,
81 std::size_t n) noexcept
82 {
83
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 2326 if(! n)
84 402 return;
85
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 1924 if(s0)
86 {
87
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 1226 if(s1)
88 62 return detail::move_chars(
89 62 dest, src, n, *s0, *s1);
90 1164 return detail::move_chars(
91 1164 dest, src, n, *s0);
92 }
93 698 detail::move_chars(
94 dest, src, n);
95 }
96
97 //------------------------------------------------
98
99 // construct reference
100 1500 url_base::
101 url_base(
102 1500 detail::url_impl const& impl) noexcept
103 1500 : url_view_base(impl)
104 {
105 1500 }
106
107 void
108 150 url_base::
109 reserve_impl(std::size_t n)
110 {
111 150 op_t op(*this);
112
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 150 reserve_impl(n, op);
113
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 149 if(s_)
114 147 s_[size()] = '\0';
115 150 }
116
117 // make a copy of u
118 void
119 3666 url_base::
120 copy(url_view_base const& u)
121 {
122
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 3666 if (this == &u)
123 117 return;
124 3666 op_t op(*this);
125
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 3666 if(u.size() == 0)
126 {
127 117 clear();
128 117 return;
129 }
130
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 3549 reserve_impl(
131 u.size(), op);
132 3546 impl_ = u.impl_;
133 3546 impl_.cs_ = s_;
134 3546 impl_.from_ = {from::url};
135 3546 std::memcpy(s_,
136 3546 u.data(), u.size());
137 3546 s_[size()] = '\0';
138
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 3666 }
139
140 //------------------------------------------------
141 //
142 // Scheme
143 //
144 //------------------------------------------------
145
146 url_base&
147 52 url_base::
148 set_scheme(core::string_view s)
149 {
150 52 set_scheme_impl(
151 s, string_to_scheme(s));
152 39 return *this;
153 }
154
155 url_base&
156 11 url_base::
157 set_scheme_id(urls::scheme id)
158 {
159
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 11 if(id == urls::scheme::unknown)
160 1 detail::throw_invalid_argument();
161
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 10 if(id == urls::scheme::none)
162 1 return remove_scheme();
163 9 set_scheme_impl(to_string(id), id);
164 9 return *this;
165 }
166
167 url_base&
168 36 url_base::
169 remove_scheme()
170 {
171 36 op_t op(*this);
172 36 auto const sn = impl_.len(id_scheme);
173
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 36 if(sn == 0)
174 9 return *this;
175 27 auto const po = impl_.offset(id_path);
176 27 auto fseg = first_segment();
177 bool const encode_colon =
178 27 !has_authority() &&
179
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 20 impl_.nseg_ > 0 &&
180
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 58 s_[po] != '/' &&
181 11 fseg.contains(':');
182
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 27 if(!encode_colon)
183 {
184 // just remove the scheme
185
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 18 resize_impl(id_scheme, 0, op);
186 18 impl_.scheme_ = urls::scheme::none;
187 18 check_invariants();
188 18 return *this;
189 }
190 // encode any ":" in the first path segment
191
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 9 BOOST_ASSERT(sn >= 2);
192 9 auto pn = impl_.len(id_path);
193 9 std::size_t cn = 0;
194
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 46 for (char c: fseg)
195 37 cn += c == ':';
196 std::size_t new_size =
197 9 size() - sn + 2 * cn;
198 9 bool need_resize = new_size > size();
199
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 9 if (need_resize)
200 {
201 1 resize_impl(
202
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 1 id_path, pn + 2 * cn, op);
203 }
204 // move [id_scheme, id_path) left
205 9 op.move(
206 s_,
207 9 s_ + sn,
208 po - sn);
209 // move [id_path, id_query) left
210 9 auto qo = impl_.offset(id_query);
211 9 op.move(
212 9 s_ + po - sn,
213 9 s_ + po,
214 qo - po);
215 // move [id_query, id_end) left
216 9 op.move(
217 9 s_ + qo - sn + 2 * cn,
218 9 s_ + qo,
219 9 impl_.offset(id_end) - qo);
220
221 // adjust part offsets.
222 // (po and qo are invalidated)
223
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 9 if (need_resize)
224 {
225 1 impl_.adjust_left(id_user, id_end, sn);
226 }
227 else
228 {
229 8 impl_.adjust_left(id_user, id_path, sn);
230 8 impl_.adjust_left(id_query, id_end, sn - 2 * cn);
231 }
232
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 9 if (encode_colon)
233 {
234 // move the 2nd, 3rd, ... segments
235 9 auto begin = s_ + impl_.offset(id_path);
236 9 auto it = begin;
237 9 auto end = begin + pn;
238
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 46 while (*it != '/' &&
239 it != end)
240 37 ++it;
241 // we don't need op here because this is
242 // an internal operation
243 9 std::memmove(it + (2 * cn), it, end - it);
244
245 // move 1st segment
246 9 auto src = s_ + impl_.offset(id_path) + pn;
247 9 auto dest = s_ + impl_.offset(id_query);
248 9 src -= end - it;
249 9 dest -= end - it;
250 9 pn -= end - it;
251 do {
252 37 --src;
253 37 --dest;
254
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 37 if (*src != ':')
255 {
256 25 *dest = *src;
257 }
258 else
259 {
260 // use uppercase as required by
261 // syntax-based normalization
262 12 *dest-- = 'A';
263 12 *dest-- = '3';
264 12 *dest = '%';
265 }
266 37 --pn;
267
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 37 } while (pn);
268 }
269 9 s_[size()] = '\0';
270 9 impl_.scheme_ = urls::scheme::none;
271 9 return *this;
272 36 }
273
274 //------------------------------------------------
275 //
276 // Authority
277 //
278 //------------------------------------------------
279
280 url_base&
281 112 url_base::
282 set_encoded_authority(
283 pct_string_view s)
284 {
285 112 op_t op(*this, &detail::ref(s));
286 113 authority_view a = grammar::parse(
287 s, authority_rule
288
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 113 ).value(BOOST_URL_POS);
289 111 auto n = s.size() + 2;
290 auto const need_slash =
291
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 133 ! is_path_absolute() &&
292 22 impl_.len(id_path) > 0;
293
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 111 if(need_slash)
294 2 ++n;
295
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 111 auto dest = resize_impl(
296 id_user, id_path, n, op);
297 111 dest[0] = '/';
298 111 dest[1] = '/';
299 111 std::memcpy(dest + 2,
300 111 s.data(), s.size());
301
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 111 if(need_slash)
302 2 dest[n - 1] = '/';
303 111 impl_.apply_authority(a);
304
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 111 if(need_slash)
305 2 impl_.adjust_right(
306 id_query, id_end, 1);
307 111 return *this;
308 112 }
309
310 url_base&
311 57 url_base::
312 remove_authority()
313 {
314
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 57 if(! has_authority())
315 30 return *this;
316
317 27 op_t op(*this);
318 27 auto path = impl_.get(id_path);
319 27 bool const need_dot = path.starts_with("//");
320
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 27 if(need_dot)
321 {
322 // prepend "/.", can't throw
323
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 4 auto p = resize_impl(
324 id_user, id_path, 2, op);
325 4 p[0] = '/';
326 4 p[1] = '.';
327 4 impl_.split(id_user, 0);
328 4 impl_.split(id_pass, 0);
329 4 impl_.split(id_host, 0);
330 4 impl_.split(id_port, 0);
331 }
332 else
333 {
334
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 23 resize_impl(
335 id_user, id_path, 0, op);
336 }
337 27 impl_.host_type_ =
338 urls::host_type::none;
339 27 return *this;
340 27 }
341
342 //------------------------------------------------
343 //
344 // Userinfo
345 //
346 //------------------------------------------------
347
348 url_base&
349 47 url_base::
350 set_userinfo(
351 core::string_view s)
352 {
353 47 op_t op(*this, &s);
354 47 encoding_opts opt;
355 47 auto const n = encoded_size(
356 s, detail::userinfo_chars, opt);
357
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 47 auto dest = set_userinfo_impl(n, op);
358 47 encode(
359 dest,
360 n,
361 s,
362 detail::userinfo_chars,
363 opt);
364 47 auto const pos = impl_.get(
365 id_user, id_host
366 47 ).find_first_of(':');
367
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 47 if(pos != core::string_view::npos)
368 {
369 9 impl_.split(id_user, pos);
370 // find ':' in plain string
371 auto const pos2 =
372 9 s.find_first_of(':');
373 9 impl_.decoded_[id_user] =
374 9 pos2 - 1;
375 9 impl_.decoded_[id_pass] =
376 9 s.size() - pos2;
377 }
378 else
379 {
380 38 impl_.decoded_[id_user] = s.size();
381 38 impl_.decoded_[id_pass] = 0;
382 }
383 47 return *this;
384 47 }
385
386 url_base&
387 52 url_base::
388 set_encoded_userinfo(
389 pct_string_view s)
390 {
391 52 op_t op(*this, &detail::ref(s));
392 52 auto const pos = s.find_first_of(':');
393
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 52 if(pos != core::string_view::npos)
394 {
395 // user:pass
396
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 7 auto const s0 = s.substr(0, pos);
397
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 7 auto const s1 = s.substr(pos + 1);
398 auto const n0 =
399 7 detail::re_encoded_size_unsafe(
400 s0,
401 detail::user_chars);
402 auto const n1 =
403 7 detail::re_encoded_size_unsafe(s1,
404 detail::password_chars);
405 auto dest =
406
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 7 set_userinfo_impl(n0 + n1 + 1, op);
407 7 impl_.decoded_[id_user] =
408 7 detail::re_encode_unsafe(
409 dest,
410 7 dest + n0,
411 s0,
412 detail::user_chars);
413 7 *dest++ = ':';
414 7 impl_.decoded_[id_pass] =
415 7 detail::re_encode_unsafe(
416 dest,
417 7 dest + n1,
418 s1,
419 detail::password_chars);
420 7 impl_.split(id_user, 2 + n0);
421 }
422 else
423 {
424 // user
425 auto const n =
426 45 detail::re_encoded_size_unsafe(
427 s, detail::user_chars);
428
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 45 auto dest = set_userinfo_impl(n, op);
429 45 impl_.decoded_[id_user] =
430 45 detail::re_encode_unsafe(
431 dest,
432 45 dest + n,
433 s,
434 detail::user_chars);
435 45 impl_.split(id_user, 2 + n);
436 45 impl_.decoded_[id_pass] = 0;
437 }
438 52 return *this;
439 52 }
440
441 url_base&
442 22 url_base::
443 remove_userinfo() noexcept
444 {
445
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 22 if(impl_.len(id_pass) == 0)
446 6 return *this; // no userinfo
447
448 16 op_t op(*this);
449 // keep authority '//'
450 16 resize_impl(
451 id_user, id_host, 2, op);
452 16 impl_.decoded_[id_user] = 0;
453 16 impl_.decoded_[id_pass] = 0;
454 16 return *this;
455 16 }
456
457 //------------------------------------------------
458
459 url_base&
460 50 url_base::
461 set_user(core::string_view s)
462 {
463 50 op_t op(*this, &s);
464 50 encoding_opts opt;
465 50 auto const n = encoded_size(
466 s, detail::user_chars, opt);
467
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 50 auto dest = set_user_impl(n, op);
468
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 50 encode_unsafe(
469 dest,
470 n,
471 s,
472 detail::user_chars,
473 opt);
474 50 impl_.decoded_[id_user] = s.size();
475 50 return *this;
476 50 }
477
478 url_base&
479 43 url_base::
480 set_encoded_user(
481 pct_string_view s)
482 {
483 43 op_t op(*this, &detail::ref(s));
484 auto const n =
485 43 detail::re_encoded_size_unsafe(
486 s, detail::user_chars);
487
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 43 auto dest = set_user_impl(n, op);
488 43 impl_.decoded_[id_user] =
489 43 detail::re_encode_unsafe(
490 dest,
491 43 dest + n,
492 s,
493 detail::user_chars);
494
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 43 BOOST_ASSERT(
495 impl_.decoded_[id_user] ==
496 s.decoded_size());
497 43 return *this;
498 43 }
499
500 //------------------------------------------------
501
502 url_base&
503 37 url_base::
504 set_password(core::string_view s)
505 {
506 37 op_t op(*this, &s);
507 37 encoding_opts opt;
508 37 auto const n = encoded_size(
509 s, detail::password_chars, opt);
510
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 37 auto dest = set_password_impl(n, op);
511
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 37 encode_unsafe(
512 dest,
513 n,
514 s,
515 detail::password_chars,
516 opt);
517 37 impl_.decoded_[id_pass] = s.size();
518 37 return *this;
519 37 }
520
521 url_base&
522 39 url_base::
523 set_encoded_password(
524 pct_string_view s)
525 {
526 39 op_t op(*this, &detail::ref(s));
527 auto const n =
528 39 detail::re_encoded_size_unsafe(
529 s,
530 detail::password_chars);
531
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 39 auto dest = set_password_impl(n, op);
532 39 impl_.decoded_[id_pass] =
533 39 detail::re_encode_unsafe(
534 dest,
535 39 dest + n,
536 s,
537 detail::password_chars);
538
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 39 BOOST_ASSERT(
539 impl_.decoded_[id_pass] ==
540 s.decoded_size());
541 39 return *this;
542 39 }
543
544 url_base&
545 19 url_base::
546 remove_password() noexcept
547 {
548 19 auto const n = impl_.len(id_pass);
549
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 19 if(n < 2)
550 12 return *this; // no password
551
552 7 op_t op(*this);
553 // clear password, retain '@'
554 auto dest =
555 7 resize_impl(id_pass, 1, op);
556 7 dest[0] = '@';
557 7 impl_.decoded_[id_pass] = 0;
558 7 return *this;
559 7 }
560
561 //------------------------------------------------
562 //
563 // Host
564 //
565 //------------------------------------------------
566 /*
567 host_type host_type() // ipv4, ipv6, ipvfuture, name
568
569 std::string host() // return encoded_host().decode()
570 pct_string_view encoded_host() // return host part, as-is
571 std::string host_address() // return encoded_host_address().decode()
572 pct_string_view encoded_host_address() // ipv4, ipv6, ipvfut, or encoded name, no brackets
573
574 ipv4_address host_ipv4_address() // return ipv4_address or {}
575 ipv6_address host_ipv6_address() // return ipv6_address or {}
576 core::string_view host_ipvfuture() // return ipvfuture or {}
577 std::string host_name() // return decoded name or ""
578 pct_string_view encoded_host_name() // return encoded host name or ""
579
580 --------------------------------------------------
581
582 set_host( core::string_view ) // set host part from plain text
583 set_encoded_host( pct_string_view ) // set host part from encoded text
584 set_host_address( core::string_view ) // set host from ipv4, ipv6, ipvfut, or plain reg-name string
585 set_encoded_host_address( pct_string_view ) // set host from ipv4, ipv6, ipvfut, or encoded reg-name string
586
587 set_host_ipv4( ipv4_address ) // set ipv4
588 set_host_ipv6( ipv6_address ) // set ipv6
589 set_host_ipvfuture( core::string_view ) // set ipvfuture
590 set_host_name( core::string_view ) // set name from plain
591 set_encoded_host_name( pct_string_view ) // set name from encoded
592 */
593
594 // set host part from plain text
595 url_base&
596 14 url_base::
597 set_host(
598 core::string_view s)
599 {
600 14 if( s.size() > 2 &&
601
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 16 s.front() == '[' &&
602
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 2 s.back() == ']')
603 {
604 // IP-literal
605 {
606 // IPv6-address
607
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 2 auto rv = parse_ipv6_address(
608 2 s.substr(1, s.size() - 2));
609
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 2 if(rv)
610
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 1 return set_host_ipv6(*rv);
611 }
612 {
613 // IPvFuture
614
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 1 auto rv = grammar::parse(
615 1 s.substr(1, s.size() - 2),
616 detail::ipvfuture_rule);
617
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 1 if(rv)
618
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 1 return set_host_ipvfuture(rv->str);
619 }
620 }
621
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 12 else if(s.size() >= 7) // "0.0.0.0"
622 {
623 // IPv4-address
624 10 auto rv = parse_ipv4_address(s);
625
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 10 if(rv)
626
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 4 return set_host_ipv4(*rv);
627 }
628
629 // reg-name
630 8 op_t op(*this, &s);
631 8 encoding_opts opt;
632 8 auto const n = encoded_size(
633 s, detail::host_chars, opt);
634
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 8 auto dest = set_host_impl(n, op);
635 8 encode(
636 dest,
637 8 impl_.get(id_path).data() - dest,
638 s,
639 detail::host_chars,
640 opt);
641 8 impl_.decoded_[id_host] = s.size();
642 8 impl_.host_type_ =
643 urls::host_type::name;
644 8 return *this;
645 8 }
646
647 // set host part from encoded text
648 url_base&
649 115 url_base::
650 set_encoded_host(
651 pct_string_view s)
652 {
653 115 if( s.size() > 2 &&
654
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 131 s.front() == '[' &&
655
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 16 s.back() == ']')
656 {
657 // IP-literal
658 {
659 // IPv6-address
660
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 16 auto rv = parse_ipv6_address(
661 16 s.substr(1, s.size() - 2));
662
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 16 if(rv)
663
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 5 return set_host_ipv6(*rv);
664 }
665 {
666 // IPvFuture
667
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 11 auto rv = grammar::parse(
668 11 s.substr(1, s.size() - 2),
669 detail::ipvfuture_rule);
670
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 11 if(rv)
671
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 1 return set_host_ipvfuture(rv->str);
672 }
673 }
674
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 99 else if(s.size() >= 7) // "0.0.0.0"
675 {
676 // IPv4-address
677 55 auto rv = parse_ipv4_address(s);
678
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 55 if(rv)
679
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 5 return set_host_ipv4(*rv);
680 }
681
682 // reg-name
683 104 op_t op(*this, &detail::ref(s));
684 104 auto const n = detail::re_encoded_size_unsafe(
685 s, detail::host_chars);
686
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 104 auto dest = set_host_impl(n, op);
687 104 impl_.decoded_[id_host] =
688 208 detail::re_encode_unsafe(
689 dest,
690 104 impl_.get(id_path).data(),
691 s,
692 detail::host_chars);
693
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 104 BOOST_ASSERT(impl_.decoded_[id_host] ==
694 s.decoded_size());
695 104 impl_.host_type_ =
696 urls::host_type::name;
697 104 return *this;
698 104 }
699
700 url_base&
701 9 url_base::
702 set_host_address(
703 core::string_view s)
704 {
705 {
706 // IPv6-address
707 9 auto rv = parse_ipv6_address(s);
708
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 9 if(rv)
709
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 1 return set_host_ipv6(*rv);
710 }
711 {
712 // IPvFuture
713 8 auto rv = grammar::parse(
714 s, detail::ipvfuture_rule);
715
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 8 if(rv)
716
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 1 return set_host_ipvfuture(rv->str);
717 }
718
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 7 if(s.size() >= 7) // "0.0.0.0"
719 {
720 // IPv4-address
721 5 auto rv = parse_ipv4_address(s);
722
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 5 if(rv)
723
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 2 return set_host_ipv4(*rv);
724 }
725
726 // reg-name
727 5 op_t op(*this, &s);
728 5 encoding_opts opt;
729 5 auto const n = encoded_size(
730 s, detail::host_chars, opt);
731
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 5 auto dest = set_host_impl(n, op);
732 5 encode(
733 dest,
734 5 impl_.get(id_path).data() - dest,
735 s,
736 detail::host_chars,
737 opt);
738 5 impl_.decoded_[id_host] = s.size();
739 5 impl_.host_type_ =
740 urls::host_type::name;
741 5 return *this;
742 5 }
743
744 url_base&
745 7 url_base::
746 set_encoded_host_address(
747 pct_string_view s)
748 {
749 {
750 // IPv6-address
751 7 auto rv = parse_ipv6_address(s);
752
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 7 if(rv)
753
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 1 return set_host_ipv6(*rv);
754 }
755 {
756 // IPvFuture
757 6 auto rv = grammar::parse(
758 s, detail::ipvfuture_rule);
759
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760
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761 }
762
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 5 if(s.size() >= 7) // "0.0.0.0"
763 {
764 // IPv4-address
765 3 auto rv = parse_ipv4_address(s);
766
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767
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 1 return set_host_ipv4(*rv);
768 }
769
770 // reg-name
771 4 op_t op(*this, &detail::ref(s));
772 4 auto const n = detail::re_encoded_size_unsafe(
773 s, detail::host_chars);
774
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 4 auto dest = set_host_impl(n, op);
775 4 impl_.decoded_[id_host] =
776 8 detail::re_encode_unsafe(
777 dest,
778 4 impl_.get(id_path).data(),
779 s,
780 detail::host_chars);
781
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 4 BOOST_ASSERT(impl_.decoded_[id_host] ==
782 s.decoded_size());
783 4 impl_.host_type_ =
784 urls::host_type::name;
785 4 return *this;
786 4 }
787
788 url_base&
789 16 url_base::
790 set_host_ipv4(
791 ipv4_address const& addr)
792 {
793 16 op_t op(*this);
794 char buf[urls::ipv4_address::max_str_len];
795
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796
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 16 auto dest = set_host_impl(s.size(), op);
797 16 std::memcpy(dest, s.data(), s.size());
798 16 impl_.decoded_[id_host] = impl_.len(id_host);
799 16 impl_.host_type_ = urls::host_type::ipv4;
800 16 auto bytes = addr.to_bytes();
801 16 std::memcpy(
802 16 impl_.ip_addr_,
803 16 bytes.data(),
804 bytes.size());
805 16 return *this;
806 16 }
807
808 url_base&
809 10 url_base::
810 set_host_ipv6(
811 ipv6_address const& addr)
812 {
813 10 op_t op(*this);
814 char buf[2 +
815 urls::ipv6_address::max_str_len];
816
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 10 auto s = addr.to_buffer(
817 buf + 1, sizeof(buf) - 2);
818 10 buf[0] = '[';
819 10 buf[s.size() + 1] = ']';
820 10 auto const n = s.size() + 2;
821
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 10 auto dest = set_host_impl(n, op);
822 10 std::memcpy(dest, buf, n);
823 10 impl_.decoded_[id_host] = n;
824 10 impl_.host_type_ = urls::host_type::ipv6;
825 10 auto bytes = addr.to_bytes();
826 10 std::memcpy(
827 10 impl_.ip_addr_,
828 10 bytes.data(),
829 bytes.size());
830 10 return *this;
831 10 }
832
833 url_base&
834 7 url_base::
835 set_host_ipvfuture(
836 core::string_view s)
837 {
838 7 op_t op(*this, &s);
839 // validate
840 8 grammar::parse(s,
841 detail::ipvfuture_rule
842
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843
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844 6 s.size() + 2, op);
845 6 *dest++ = '[';
846
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 6 dest += s.copy(dest, s.size());
847 6 *dest = ']';
848 6 impl_.host_type_ =
849 urls::host_type::ipvfuture;
850 6 impl_.decoded_[id_host] = s.size() + 2;
851 6 return *this;
852 7 }
853
854 url_base&
855 4 url_base::
856 set_host_name(
857 core::string_view s)
858 {
859 4 bool is_ipv4 = false;
860
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861 {
862 // IPv4-address
863
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 3 if(parse_ipv4_address(s).has_value())
864 1 is_ipv4 = true;
865 }
866 4 auto allowed = detail::host_chars;
867
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 4 if(is_ipv4)
868 1 allowed = allowed - '.';
869
870 4 op_t op(*this, &s);
871 4 encoding_opts opt;
872 4 auto const n = encoded_size(
873 s, allowed, opt);
874
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875
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 4 encode_unsafe(
876 dest,
877 n,
878 s,
879 allowed,
880 opt);
881 4 impl_.host_type_ =
882 urls::host_type::name;
883 4 impl_.decoded_[id_host] = s.size();
884 4 return *this;
885 4 }
886
887 url_base&
888 4 url_base::
889 set_encoded_host_name(
890 pct_string_view s)
891 {
892 4 bool is_ipv4 = false;
893
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894 {
895 // IPv4-address
896
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897 1 is_ipv4 = true;
898 }
899 4 auto allowed = detail::host_chars;
900
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 4 if(is_ipv4)
901 1 allowed = allowed - '.';
902
903 4 op_t op(*this, &detail::ref(s));
904 4 auto const n = detail::re_encoded_size_unsafe(
905 s, allowed);
906
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 4 auto dest = set_host_impl(n, op);
907 4 impl_.decoded_[id_host] =
908 4 detail::re_encode_unsafe(
909 dest,
910 4 dest + n,
911 s,
912 allowed);
913
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 4 BOOST_ASSERT(
914 impl_.decoded_[id_host] ==
915 s.decoded_size());
916 4 impl_.host_type_ =
917 urls::host_type::name;
918 4 return *this;
919 4 }
920
921 //------------------------------------------------
922
923 url_base&
924 23 url_base::
925 set_port_number(
926 std::uint16_t n)
927 {
928 23 op_t op(*this);
929 auto s =
930 23 detail::make_printed(n);
931
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 23 auto dest = set_port_impl(
932 23 s.string().size(), op);
933 23 std::memcpy(
934 23 dest, s.string().data(),
935 23 s.string().size());
936 23 impl_.port_number_ = n;
937 23 return *this;
938 23 }
939
940 url_base&
941 90 url_base::
942 set_port(
943 core::string_view s)
944 {
945 90 op_t op(*this, &s);
946 109 auto t = grammar::parse(s,
947 19 detail::port_rule{}
948
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 90 ).value(BOOST_URL_POS);
949 auto dest =
950
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 71 set_port_impl(t.str.size(), op);
951 71 std::memcpy(dest,
952 71 t.str.data(), t.str.size());
953
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 71 if(t.has_number)
954 35 impl_.port_number_ = t.number;
955 else
956 36 impl_.port_number_ = 0;
957 71 return *this;
958 90 }
959
960 url_base&
961 25 url_base::
962 remove_port() noexcept
963 {
964 25 op_t op(*this);
965 25 resize_impl(id_port, 0, op);
966 25 impl_.port_number_ = 0;
967 50 return *this;
968 25 }
969
970 //------------------------------------------------
971 //
972 // Compound Fields
973 //
974 //------------------------------------------------
975
976 url_base&
977 14 url_base::
978 remove_origin()
979 {
980 // these two calls perform 2 memmoves instead of 1
981 14 remove_authority();
982 14 remove_scheme();
983 14 return *this;
984 }
985
986 //------------------------------------------------
987 //
988 // Path
989 //
990 //------------------------------------------------
991
992 bool
993 50 url_base::
994 set_path_absolute(
995 bool absolute)
996 {
997 50 op_t op(*this);
998
999 // check if path empty
1000
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 50 if(impl_.len(id_path) == 0)
1001 {
1002
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 38 if(! absolute)
1003 {
1004 // already not absolute
1005 32 return true;
1006 }
1007
1008 // add '/'
1009
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 6 auto dest = resize_impl(
1010 id_path, 1, op);
1011 6 *dest = '/';
1012 6 ++impl_.decoded_[id_path];
1013 6 return true;
1014 }
1015
1016 // check if path absolute
1017
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 12 if(s_[impl_.offset(id_path)] == '/')
1018 {
1019
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 9 if(absolute)
1020 {
1021 // already absolute
1022 2 return true;
1023 }
1024
1025
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 11 if( has_authority() &&
1026 4 impl_.len(id_path) > 1)
1027 {
1028 // can't do it, paths are always
1029 // absolute when authority present!
1030 2 return false;
1031 }
1032
1033 5 auto p = encoded_path();
1034 5 auto pos = p.find_first_of(":/", 1);
1035
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1036
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 1 p[pos] == ':')
1037 {
1038 // prepend with .
1039 1 auto n = impl_.len(id_path);
1040
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 1 resize_impl(id_path, n + 1, op);
1041 1 std::memmove(
1042 2 s_ + impl_.offset(id_path) + 1,
1043 1 s_ + impl_.offset(id_path), n);
1044 1 *(s_ + impl_.offset(id_path)) = '.';
1045 1 ++impl_.decoded_[id_path];
1046 1 return true;
1047 }
1048
1049 // remove '/'
1050 4 auto n = impl_.len(id_port);
1051 4 impl_.split(id_port, n + 1);
1052
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 4 resize_impl(id_port, n, op);
1053 4 --impl_.decoded_[id_path];
1054 4 return true;
1055 }
1056
1057
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 3 if(! absolute)
1058 {
1059 // already not absolute
1060 1 return true;
1061 }
1062
1063 // add '/'
1064 2 auto n = impl_.len(id_port);
1065
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 2 auto dest = resize_impl(
1066 2 id_port, n + 1, op) + n;
1067 2 impl_.split(id_port, n);
1068 2 *dest = '/';
1069 2 ++impl_.decoded_[id_path];
1070 2 return true;
1071 50 }
1072
1073 url_base&
1074 25 url_base::
1075 set_path(
1076 core::string_view s)
1077 {
1078 25 op_t op(*this, &s);
1079 25 encoding_opts opt;
1080
1081 //------------------------------------------------
1082 //
1083 // Calculate encoded size
1084 //
1085 // - "/"s are not encoded
1086 // - "%2F"s are not encoded
1087 //
1088 // - reserved path chars are re-encoded
1089 // - colons in first segment might need to be re-encoded
1090 // - the path might need to receive a prefix
1091 25 auto const n = encoded_size(
1092 s, detail::path_chars, opt);
1093 25 std::size_t n_reencode_colons = 0;
1094 25 core::string_view first_seg;
1095 25 if (!has_scheme() &&
1096
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 40 !has_authority() &&
1097
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 15 !s.starts_with('/'))
1098 {
1099 // the first segment with unencoded colons would look
1100 // like the scheme
1101 6 first_seg = detail::to_sv(s);
1102 6 std::size_t p = s.find('/');
1103
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1104
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1105
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 6 n_reencode_colons = std::count(
1106 12 first_seg.begin(), first_seg.end(), ':');
1107 }
1108 // the authority can only be followed by an empty or relative path
1109 // if we have an authority and the path is a non-empty relative path, we
1110 // add the "/" prefix to make it valid.
1111 bool make_absolute =
1112 25 has_authority() &&
1113
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1114
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 5 !s.empty();
1115 // a path starting with "//" might look like the authority.
1116 // we add a "/." prefix to prevent that
1117 bool add_dot_segment =
1118
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 47 !make_absolute &&
1119 22 s.starts_with("//");
1120
1121 //------------------------------------------------
1122 //
1123 // Re-encode data
1124 //
1125 50 auto dest = set_path_impl(
1126
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 25 n + make_absolute + 2 * n_reencode_colons + 2 * add_dot_segment, op);
1127 25 impl_.decoded_[id_path] = 0;
1128
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 25 if (!dest)
1129 {
1130 3 impl_.nseg_ = 0;
1131 3 return *this;
1132 }
1133
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 22 if (make_absolute)
1134 {
1135 3 *dest++ = '/';
1136 3 impl_.decoded_[id_path] += 1;
1137 }
1138
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 19 else if (add_dot_segment)
1139 {
1140 1 *dest++ = '/';
1141 1 *dest++ = '.';
1142 1 impl_.decoded_[id_path] += 2;
1143 }
1144 44 dest += encode_unsafe(
1145 dest,
1146
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 22 impl_.get(id_query).data() - dest,
1147 first_seg,
1148 22 detail::segment_chars - ':',
1149 opt);
1150
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1151 dest,
1152
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 22 impl_.get(id_query).data() - dest,
1153 s.substr(first_seg.size()),
1154 detail::path_chars,
1155 opt);
1156 22 impl_.decoded_[id_path] += s.size();
1157
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1158
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 22 BOOST_ASSERT(
1159 impl_.decoded_[id_path] ==
1160 s.size() + make_absolute + 2 * add_dot_segment);
1161
1162 //------------------------------------------------
1163 //
1164 // Update path parameters
1165 //
1166 // get the encoded_path with the replacements we applied
1167
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 22 if (s == "/")
1168 {
1169 // "/" maps to sequence {}
1170 3 impl_.nseg_ = 0;
1171 }
1172
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 19 else if (!s.empty())
1173 {
1174
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1175
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 1 s = s.substr(2);
1176 // count segments as number of '/'s + 1
1177
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 15 impl_.nseg_ = std::count(
1178 30 s.begin() + 1, s.end(), '/') + 1;
1179 }
1180 else
1181 {
1182 // an empty relative path maps to sequence {}
1183 4 impl_.nseg_ = 0;
1184 }
1185
1186 22 check_invariants();
1187 22 return *this;
1188 25 }
1189
1190 url_base&
1191 163 url_base::
1192 set_encoded_path(
1193 pct_string_view s)
1194 {
1195 163 op_t op(*this, &detail::ref(s));
1196
1197 //------------------------------------------------
1198 //
1199 // Calculate re-encoded output size
1200 //
1201 // - reserved path chars are re-encoded
1202 // - colons in first segment might need to be re-encoded
1203 // - the path might need to receive a prefix
1204 163 auto const n = detail::re_encoded_size_unsafe(
1205 s, detail::path_chars);
1206 163 std::size_t n_reencode_colons = 0;
1207 163 core::string_view first_seg;
1208 163 if (!has_scheme() &&
1209
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 180 !has_authority() &&
1210
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 17 !s.starts_with('/'))
1211 {
1212 // the first segment with unencoded colons would look
1213 // like the scheme
1214 10 first_seg = detail::to_sv(s);
1215 10 std::size_t p = s.find('/');
1216
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1217
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1218
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 10 n_reencode_colons = std::count(
1219 20 first_seg.begin(), first_seg.end(), ':');
1220 }
1221 // the authority can only be followed by an empty or relative path
1222 // if we have an authority and the path is a non-empty relative path, we
1223 // add the "/" prefix to make it valid.
1224 bool make_absolute =
1225 163 has_authority() &&
1226
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1227
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 48 !s.empty();
1228 // a path starting with "//" might look like the authority
1229 // we add a "/." prefix to prevent that
1230 bool add_dot_segment =
1231 313 !make_absolute &&
1232
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 200 !has_authority() &&
1233 37 s.starts_with("//");
1234
1235 //------------------------------------------------
1236 //
1237 // Re-encode data
1238 //
1239 326 auto dest = set_path_impl(
1240
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 163 n + make_absolute + 2 * n_reencode_colons + 2 * add_dot_segment, op);
1241 163 impl_.decoded_[id_path] = 0;
1242
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 163 if (!dest)
1243 {
1244 1 impl_.nseg_ = 0;
1245 1 return *this;
1246 }
1247
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 162 if (make_absolute)
1248 {
1249 13 *dest++ = '/';
1250 13 impl_.decoded_[id_path] += 1;
1251 }
1252
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 149 else if (add_dot_segment)
1253 {
1254 3 *dest++ = '/';
1255 3 *dest++ = '.';
1256 3 impl_.decoded_[id_path] += 2;
1257 }
1258 162 impl_.decoded_[id_path] +=
1259 162 detail::re_encode_unsafe(
1260 dest,
1261 162 impl_.get(id_query).data(),
1262 first_seg,
1263 162 detail::segment_chars - ':');
1264 162 impl_.decoded_[id_path] +=
1265
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 324 detail::re_encode_unsafe(
1266 dest,
1267 162 impl_.get(id_query).data(),
1268 s.substr(first_seg.size()),
1269 detail::path_chars);
1270
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 162 BOOST_ASSERT(dest == impl_.get(id_query).data());
1271
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 162 BOOST_ASSERT(
1272 impl_.decoded_[id_path] ==
1273 s.decoded_size() + make_absolute + 2 * add_dot_segment);
1274
1275 //------------------------------------------------
1276 //
1277 // Update path parameters
1278 //
1279 // get the encoded_path with the replacements we applied
1280
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 162 if (s == "/")
1281 {
1282 // "/" maps to sequence {}
1283 16 impl_.nseg_ = 0;
1284 }
1285
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 146 else if (!s.empty())
1286 {
1287
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 109 if (s.starts_with("/./"))
1288
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 7 s = s.substr(2);
1289 // count segments as number of '/'s + 1
1290
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 109 impl_.nseg_ = std::count(
1291 218 s.begin() + 1, s.end(), '/') + 1;
1292 }
1293 else
1294 {
1295 // an empty relative path maps to sequence {}
1296 37 impl_.nseg_ = 0;
1297 }
1298
1299 162 check_invariants();
1300 162 return *this;
1301 163 }
1302
1303 segments_ref
1304 266 url_base::
1305 segments() noexcept
1306 {
1307 266 return {*this};
1308 }
1309
1310 segments_encoded_ref
1311 462 url_base::
1312 encoded_segments() noexcept
1313 {
1314 462 return {*this};
1315 }
1316
1317 //------------------------------------------------
1318 //
1319 // Query
1320 //
1321 //------------------------------------------------
1322
1323 url_base&
1324 10 url_base::
1325 set_query(
1326 core::string_view s)
1327 {
1328
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 10 edit_params(
1329 10 detail::params_iter_impl(impl_),
1330 10 detail::params_iter_impl(impl_, 0),
1331 20 detail::query_iter(s, true));
1332 10 return *this;
1333 }
1334
1335 url_base&
1336 47 url_base::
1337 set_encoded_query(
1338 pct_string_view s)
1339 {
1340 47 op_t op(*this);
1341 47 std::size_t n = 0; // encoded size
1342 47 std::size_t nparam = 1; // param count
1343 47 auto const end = s.end();
1344 47 auto p = s.begin();
1345
1346 // measure
1347
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 195 while(p != end)
1348 {
1349
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 148 if(*p == '&')
1350 {
1351 3 ++p;
1352 3 ++n;
1353 3 ++nparam;
1354 }
1355
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 145 else if(*p != '%')
1356 {
1357
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 142 if(detail::query_chars(*p))
1358 139 n += 1; // allowed
1359 else
1360 3 n += 3; // escaped
1361 142 ++p;
1362 }
1363 else
1364 {
1365 // escape
1366 3 n += 3;
1367 3 p += 3;
1368 }
1369 }
1370
1371 // resize
1372
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 47 auto dest = resize_impl(
1373 47 id_query, n + 1, op);
1374 47 *dest++ = '?';
1375
1376 // encode
1377 47 impl_.decoded_[id_query] =
1378 47 detail::re_encode_unsafe(
1379 dest,
1380 47 dest + n,
1381 s,
1382 detail::query_chars);
1383
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 47 BOOST_ASSERT(
1384 impl_.decoded_[id_query] ==
1385 s.decoded_size());
1386 47 impl_.nparam_ = nparam;
1387 47 return *this;
1388 47 }
1389
1390 params_ref
1391 92 url_base::
1392 params() noexcept
1393 {
1394 return params_ref(
1395 *this,
1396 encoding_opts{
1397 92 true, false, false});
1398 }
1399
1400 params_ref
1401 1 url_base::
1402 params(encoding_opts opt) noexcept
1403 {
1404 1 return params_ref(*this, opt);
1405 }
1406
1407 params_encoded_ref
1408 77 url_base::
1409 encoded_params() noexcept
1410 {
1411 77 return {*this};
1412 }
1413
1414 url_base&
1415 1 url_base::
1416 set_params( std::initializer_list<param_view> ps ) noexcept
1417 {
1418 1 params().assign(ps);
1419 1 return *this;
1420 }
1421
1422 url_base&
1423 1 url_base::
1424 set_encoded_params( std::initializer_list< param_pct_view > ps ) noexcept
1425 {
1426 1 encoded_params().assign(ps);
1427 1 return *this;
1428 }
1429
1430 url_base&
1431 222 url_base::
1432 remove_query() noexcept
1433 {
1434 222 op_t op(*this);
1435 222 resize_impl(id_query, 0, op);
1436 222 impl_.nparam_ = 0;
1437 222 impl_.decoded_[id_query] = 0;
1438 444 return *this;
1439 222 }
1440
1441 //------------------------------------------------
1442 //
1443 // Fragment
1444 //
1445 //------------------------------------------------
1446
1447 url_base&
1448 215 url_base::
1449 remove_fragment() noexcept
1450 {
1451 215 op_t op(*this);
1452 215 resize_impl(id_frag, 0, op);
1453 215 impl_.decoded_[id_frag] = 0;
1454 430 return *this;
1455 215 }
1456
1457 url_base&
1458 7 url_base::
1459 set_fragment(core::string_view s)
1460 {
1461 7 op_t op(*this, &s);
1462 7 encoding_opts opt;
1463 7 auto const n = encoded_size(
1464 s,
1465 detail::fragment_chars,
1466 opt);
1467
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1468 id_frag, n + 1, op);
1469 7 *dest++ = '#';
1470
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 7 encode_unsafe(
1471 dest,
1472 n,
1473 s,
1474 detail::fragment_chars,
1475 opt);
1476 7 impl_.decoded_[id_frag] = s.size();
1477 7 return *this;
1478 7 }
1479
1480 url_base&
1481 57 url_base::
1482 set_encoded_fragment(
1483 pct_string_view s)
1484 {
1485 57 op_t op(*this, &detail::ref(s));
1486 auto const n =
1487 57 detail::re_encoded_size_unsafe(
1488 s,
1489 detail::fragment_chars);
1490
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 57 auto dest = resize_impl(
1491 57 id_frag, n + 1, op);
1492 57 *dest++ = '#';
1493 57 impl_.decoded_[id_frag] =
1494 57 detail::re_encode_unsafe(
1495 dest,
1496 57 dest + n,
1497 s,
1498 detail::fragment_chars);
1499
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 57 BOOST_ASSERT(
1500 impl_.decoded_[id_frag] ==
1501 s.decoded_size());
1502 57 return *this;
1503 57 }
1504
1505 //------------------------------------------------
1506 //
1507 // Resolution
1508 //
1509 //------------------------------------------------
1510
1511 system::result<void>
1512 462 url_base::
1513 resolve(
1514 url_view_base const& ref)
1515 {
1516
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 465 if (this == &ref &&
1517 3 has_scheme())
1518 {
1519
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 2 normalize_path();
1520 2 return {};
1521 }
1522
1523
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 460 if(! has_scheme())
1524 {
1525 2 BOOST_URL_RETURN_EC(error::not_a_base);
1526 }
1527
1528 458 op_t op(*this);
1529
1530 //
1531 // 5.2.2. Transform References
1532 // https://datatracker.ietf.org/doc/html/rfc3986#section-5.2.2
1533 //
1534
1535
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 719 if( ref.has_scheme() &&
1536 261 ref.scheme() != scheme())
1537 {
1538
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 198 reserve_impl(ref.size(), op);
1539
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1540
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 198 normalize_path();
1541 198 return {};
1542 }
1543
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 260 if(ref.has_authority())
1544 {
1545
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 70 reserve_impl(
1546 70 impl_.offset(id_user) + ref.size(), op);
1547
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1548 ref.encoded_authority());
1549
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1550 ref.encoded_path());
1551
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 70 if (ref.encoded_path().empty())
1552
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 31 set_path_absolute(false);
1553 else
1554
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1555
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 70 if(ref.has_query())
1556
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1557 ref.encoded_query());
1558 else
1559 65 remove_query();
1560
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 70 if(ref.has_fragment())
1561
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1562 ref.encoded_fragment());
1563 else
1564 65 remove_fragment();
1565 70 return {};
1566 }
1567
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 190 if(ref.encoded_path().empty())
1568 {
1569
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1570 32 impl_.offset(id_query) +
1571 32 ref.size(), op);
1572
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1573
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 32 if(ref.has_query())
1574 {
1575
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1576 ref.encoded_query());
1577 }
1578
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1579
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1580 ref.encoded_fragment());
1581 32 return {};
1582 }
1583
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 158 if(ref.is_path_absolute())
1584 {
1585
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1586 35 impl_.offset(id_path) +
1587 35 ref.size(), op);
1588
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1589 ref.encoded_path());
1590
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1591
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1592
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1593 ref.encoded_query());
1594 else
1595 32 remove_query();
1596
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 35 if(ref.has_fragment())
1597
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1598 ref.encoded_fragment());
1599 else
1600 33 remove_fragment();
1601 35 return {};
1602 }
1603 // General case: ref is relative path
1604
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 123 reserve_impl(
1605 123 impl_.offset(id_query) +
1606 123 ref.size(), op);
1607 // 5.2.3. Merge Paths
1608 123 auto es = encoded_segments();
1609
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 123 if(es.size() > 0)
1610 {
1611 118 es.pop_back();
1612 }
1613
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1614 123 ref.encoded_segments().begin(),
1615 123 ref.encoded_segments().end());
1616
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1617
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1618
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1619 ref.encoded_query());
1620 else
1621 113 remove_query();
1622
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1623
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1624 ref.encoded_fragment());
1625 else
1626 113 remove_fragment();
1627 123 return {};
1628 458 }
1629
1630 //------------------------------------------------
1631 //
1632 // Normalization
1633 //
1634 //------------------------------------------------
1635
1636 template <class Charset>
1637 void
1638 1917 url_base::
1639 normalize_octets_impl(
1640 int id,
1641 Charset const& allowed,
1642 op_t& op) noexcept
1643 {
1644 1917 char* it = s_ + impl_.offset(id);
1645 1917 char* end = s_ + impl_.offset(id + 1);
1646 1917 char d = 0;
1647 1917 char* dest = it;
1648
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 10587 while (it < end)
1649 {
1650
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 8670 if (*it != '%')
1651 {
1652 8562 *dest = *it;
1653 8562 ++it;
1654 8562 ++dest;
1655 8562 continue;
1656 }
1657
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 108 BOOST_ASSERT(end - it >= 3);
1658
1659 // decode unreserved octets
1660 108 d = detail::decode_one(it + 1);
1661
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 108 if (allowed(d))
1662 {
1663 76 *dest = d;
1664 76 it += 3;
1665 76 ++dest;
1666 76 continue;
1667 }
1668
1669 // uppercase percent-encoding triplets
1670 32 *dest++ = '%';
1671 32 ++it;
1672 32 *dest++ = grammar::to_upper(*it++);
1673 32 *dest++ = grammar::to_upper(*it++);
1674 }
1675
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 1917 if (it != dest)
1676 {
1677 24 auto diff = it - dest;
1678 24 auto n = impl_.len(id) - diff;
1679 24 shrink_impl(id, n, op);
1680 24 s_[size()] = '\0';
1681 }
1682 1917 }
1683
1684 url_base&
1685 38 url_base::
1686 normalize_scheme()
1687 {
1688 38 to_lower_impl(id_scheme);
1689 38 return *this;
1690 }
1691
1692 url_base&
1693 383 url_base::
1694 normalize_authority()
1695 {
1696 383 op_t op(*this);
1697
1698 // normalize host
1699
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 383 if (host_type() == urls::host_type::name)
1700 {
1701 247 normalize_octets_impl(
1702 id_host,
1703 detail::reg_name_chars, op);
1704 }
1705 383 decoded_to_lower_impl(id_host);
1706
1707 // normalize password
1708 383 normalize_octets_impl(id_pass, detail::password_chars, op);
1709
1710 // normalize user
1711 383 normalize_octets_impl(id_user, detail::user_chars, op);
1712 766 return *this;
1713 383 }
1714
1715 url_base&
1716 832 url_base::
1717 normalize_path()
1718 {
1719 832 op_t op(*this);
1720 832 normalize_octets_impl(id_path, detail::segment_chars, op);
1721 832 core::string_view p = impl_.get(id_path);
1722 832 char* p_dest = s_ + impl_.offset(id_path);
1723 832 char* p_end = s_ + impl_.offset(id_path + 1);
1724 832 auto pn = p.size();
1725 832 auto skip_dot = 0;
1726 832 bool encode_colons = false;
1727 832 core::string_view first_seg;
1728
1729 //------------------------------------------------
1730 //
1731 // Determine unnecessary initial dot segments to skip and
1732 // if we need to encode colons in the first segment
1733 //
1734 832 if (
1735
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 1096 !has_authority() &&
1736 264 p.starts_with("/./"))
1737 {
1738 // check if removing the "/./" would result in "//"
1739 // ex: "/.//", "/././/", "/././/", ...
1740 14 skip_dot = 2;
1741
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1742 1 skip_dot += 2;
1743
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 14 if (p.substr(skip_dot).starts_with("//"))
1744 11 skip_dot = 2;
1745 else
1746 3 skip_dot = 0;
1747 }
1748 818 else if (
1749
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1750
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1751 {
1752
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 30 if (p.starts_with("./"))
1753 {
1754 // check if removing the "./" would result in "//"
1755 // ex: ".//", "././/", "././/", ...
1756 7 skip_dot = 1;
1757
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 10 while (p.substr(skip_dot, 3).starts_with("/./"))
1758 3 skip_dot += 2;
1759
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 7 if (p.substr(skip_dot).starts_with("//"))
1760 2 skip_dot = 2;
1761 else
1762 5 skip_dot = 0;
1763
1764
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 7 if ( !skip_dot )
1765 {
1766 // check if removing "./"s would leave us
1767 // a first segment with an ambiguous ":"
1768
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 5 first_seg = p.substr(2);
1769
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 7 while (first_seg.starts_with("./"))
1770
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 2 first_seg = first_seg.substr(2);
1771 5 auto i = first_seg.find('/');
1772
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 5 if (i != core::string_view::npos)
1773
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 1 first_seg = first_seg.substr(0, i);
1774 5 encode_colons = first_seg.contains(':');
1775 }
1776 }
1777 else
1778 {
1779 // check if normalize_octets_impl
1780 // didn't already create a ":"
1781 // in the first segment
1782 23 first_seg = p;
1783 23 auto i = first_seg.find('/');
1784
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 23 if (i != core::string_view::npos)
1785
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 17 first_seg = p.substr(0, i);
1786 23 encode_colons = first_seg.contains(':');
1787 }
1788 }
1789
1790 //------------------------------------------------
1791 //
1792 // Encode colons in the first segment
1793 //
1794
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 832 if (encode_colons)
1795 {
1796 // prepend with "./"
1797 // (resize_impl never throws)
1798 auto cn =
1799
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 5 std::count(
1800 first_seg.begin(),
1801 first_seg.end(),
1802 5 ':');
1803 5 resize_impl(
1804
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 5 id_path, pn + (2 * cn), op);
1805 // move the 2nd, 3rd, ... segments
1806 5 auto begin = s_ + impl_.offset(id_path);
1807 5 auto it = begin;
1808 5 auto end = begin + pn;
1809
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 11 while (core::string_view(it, 2) == "./")
1810 6 it += 2;
1811
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 57 while (*it != '/' &&
1812 it != end)
1813 52 ++it;
1814 // we don't need op here because this is
1815 // an internal operation
1816 5 std::memmove(it + (2 * cn), it, end - it);
1817
1818 // move 1st segment
1819 5 auto src = s_ + impl_.offset(id_path) + pn;
1820 5 auto dest = s_ + impl_.offset(id_query);
1821 5 src -= end - it;
1822 5 dest -= end - it;
1823 5 pn -= end - it;
1824 do {
1825 64 --src;
1826 64 --dest;
1827
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 64 if (*src != ':')
1828 {
1829 57 *dest = *src;
1830 }
1831 else
1832 {
1833 // use uppercase as required by
1834 // syntax-based normalization
1835 7 *dest-- = 'A';
1836 7 *dest-- = '3';
1837 7 *dest = '%';
1838 }
1839 64 --pn;
1840
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 64 } while (pn);
1841 5 skip_dot = 0;
1842 5 p = impl_.get(id_path);
1843 5 pn = p.size();
1844 5 p_dest = s_ + impl_.offset(id_path);
1845 5 p_end = s_ + impl_.offset(id_path + 1);
1846 }
1847
1848 //------------------------------------------------
1849 //
1850 // Remove "." and ".." segments
1851 //
1852 832 p.remove_prefix(skip_dot);
1853 832 p_dest += skip_dot;
1854 832 auto n = detail::remove_dot_segments(
1855 p_dest, p_end, p);
1856
1857 //------------------------------------------------
1858 //
1859 // Update path parameters
1860 //
1861
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 832 if (n != pn)
1862 {
1863
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 134 BOOST_ASSERT(n < pn);
1864
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 134 shrink_impl(id_path, n + skip_dot, op);
1865 134 p = encoded_path();
1866
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 134 if (p == "/")
1867 9 impl_.nseg_ = 0;
1868
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 125 else if (!p.empty())
1869
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 123 impl_.nseg_ = std::count(
1870 246 p.begin() + 1, p.end(), '/') + 1;
1871 else
1872 2 impl_.nseg_ = 0;
1873 134 impl_.decoded_[id_path] =
1874 134 detail::decode_bytes_unsafe(impl_.get(id_path));
1875 }
1876 832 return *this;
1877 832 }
1878
1879 url_base&
1880 36 url_base::
1881 normalize_query()
1882 {
1883 36 op_t op(*this);
1884 36 normalize_octets_impl(
1885 id_query, detail::query_chars, op);
1886 72 return *this;
1887 36 }
1888
1889 url_base&
1890 36 url_base::
1891 normalize_fragment()
1892 {
1893 36 op_t op(*this);
1894 36 normalize_octets_impl(
1895 id_frag, detail::fragment_chars, op);
1896 72 return *this;
1897 36 }
1898
1899 url_base&
1900 36 url_base::
1901 normalize()
1902 {
1903 36 normalize_fragment();
1904 36 normalize_query();
1905 36 normalize_path();
1906 36 normalize_authority();
1907 36 normalize_scheme();
1908 36 return *this;
1909 }
1910
1911 //------------------------------------------------
1912 //
1913 // Implementation
1914 //
1915 //------------------------------------------------
1916
1917 void
1918 17767 url_base::
1919 check_invariants() const noexcept
1920 {
1921
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 17767 BOOST_ASSERT(pi_);
1922
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 17767 BOOST_ASSERT(
1923 impl_.len(id_scheme) == 0 ||
1924 impl_.get(id_scheme).ends_with(':'));
1925
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 17767 BOOST_ASSERT(
1926 impl_.len(id_user) == 0 ||
1927 impl_.get(id_user).starts_with("//"));
1928
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 17767 BOOST_ASSERT(
1929 impl_.len(id_pass) == 0 ||
1930 impl_.get(id_user).starts_with("//"));
1931
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 17767 BOOST_ASSERT(
1932 impl_.len(id_pass) == 0 ||
1933 (impl_.len(id_pass) == 1 &&
1934 impl_.get(id_pass) == "@") ||
1935 (impl_.len(id_pass) > 1 &&
1936 impl_.get(id_pass).starts_with(':') &&
1937 impl_.get(id_pass).ends_with('@')));
1938
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 17767 BOOST_ASSERT(
1939 impl_.len(id_user, id_path) == 0 ||
1940 impl_.get(id_user).starts_with("//"));
1941
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 17767 BOOST_ASSERT(impl_.decoded_[id_path] >=
1942 ((impl_.len(id_path) + 2) / 3));
1943
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 17767 BOOST_ASSERT(
1944 impl_.len(id_port) == 0 ||
1945 impl_.get(id_port).starts_with(':'));
1946
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 17767 BOOST_ASSERT(
1947 impl_.len(id_query) == 0 ||
1948 impl_.get(id_query).starts_with('?'));
1949
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 17767 BOOST_ASSERT(
1950 (impl_.len(id_query) == 0 && impl_.nparam_ == 0) ||
1951 (impl_.len(id_query) > 0 && impl_.nparam_ > 0));
1952
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 17767 BOOST_ASSERT(
1953 impl_.len(id_frag) == 0 ||
1954 impl_.get(id_frag).starts_with('#'));
1955
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 17767 BOOST_ASSERT(c_str()[size()] == '\0');
1956 17767 }
1957
1958 char*
1959 1512 url_base::
1960 resize_impl(
1961 int id,
1962 std::size_t new_size,
1963 op_t& op)
1964 {
1965 1512 return resize_impl(
1966 1512 id, id + 1, new_size, op);
1967 }
1968
1969 char*
1970 1781 url_base::
1971 resize_impl(
1972 int first,
1973 int last,
1974 std::size_t new_len,
1975 op_t& op)
1976 {
1977 1781 auto const n0 = impl_.len(first, last);
1978
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 1781 if(new_len == 0 && n0 == 0)
1979 371 return s_ + impl_.offset(first);
1980
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 1410 if(new_len <= n0)
1981 501 return shrink_impl(
1982 501 first, last, new_len, op);
1983
1984 // growing
1985 909 std::size_t n = new_len - n0;
1986 909 reserve_impl(size() + n, op);
1987 auto const pos =
1988 909 impl_.offset(last);
1989 // adjust chars
1990 909 op.move(
1991 909 s_ + pos + n,
1992 909 s_ + pos,
1993 909 impl_.offset(id_end) -
1994 pos + 1);
1995 // collapse (first, last)
1996 909 impl_.collapse(first, last,
1997 909 impl_.offset(last) + n);
1998 // shift (last, end) right
1999 909 impl_.adjust_right(last, id_end, n);
2000 909 s_[size()] = '\0';
2001 909 return s_ + impl_.offset(first);
2002 }
2003
2004 char*
2005 158 url_base::
2006 shrink_impl(
2007 int id,
2008 std::size_t new_size,
2009 op_t& op)
2010 {
2011 158 return shrink_impl(
2012 158 id, id + 1, new_size, op);
2013 }
2014
2015 char*
2016 659 url_base::
2017 shrink_impl(
2018 int first,
2019 int last,
2020 std::size_t new_len,
2021 op_t& op)
2022 {
2023 // shrinking
2024 659 auto const n0 = impl_.len(first, last);
2025
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 659 BOOST_ASSERT(new_len <= n0);
2026 659 std::size_t n = n0 - new_len;
2027 auto const pos =
2028 659 impl_.offset(last);
2029 // adjust chars
2030 659 op.move(
2031 659 s_ + pos - n,
2032 659 s_ + pos,
2033 659 impl_.offset(
2034 659 id_end) - pos + 1);
2035 // collapse (first, last)
2036 659 impl_.collapse(first, last,
2037 659 impl_.offset(last) - n);
2038 // shift (last, end) left
2039 659 impl_.adjust_left(last, id_end, n);
2040 659 s_[size()] = '\0';
2041 659 return s_ + impl_.offset(first);
2042 }
2043
2044 //------------------------------------------------
2045
2046 void
2047 61 url_base::
2048 set_scheme_impl(
2049 core::string_view s,
2050 urls::scheme id)
2051 {
2052 61 op_t op(*this, &s);
2053 61 check_invariants();
2054 74 grammar::parse(
2055 13 s, detail::scheme_rule()
2056
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 61 ).value(BOOST_URL_POS);
2057 48 auto const n = s.size();
2058 48 auto const p = impl_.offset(id_path);
2059
2060 // check for "./" prefix
2061 bool const has_dot =
2062 75 [this, p]
2063 {
2064
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 48 if(impl_.nseg_ == 0)
2065 30 return false;
2066
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 18 if(first_segment().size() < 2)
2067 9 return false;
2068 9 auto const src = s_ + p;
2069
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 9 if(src[0] != '.')
2070 6 return false;
2071
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 3 if(src[1] != '/')
2072 ✗ return false;
2073 3 return true;
2074 48 }();
2075
2076 // Remove "./"
2077
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 48 if(has_dot)
2078 {
2079 // do this first, for
2080 // strong exception safety
2081 6 reserve_impl(
2082
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 3 size() + n + 1 - 2, op);
2083 3 op.move(
2084 3 s_ + p,
2085 3 s_ + p + 2,
2086 3 size() + 1 -
2087 (p + 2));
2088 3 impl_.set_size(
2089 id_path,
2090 3 impl_.len(id_path) - 2);
2091 3 s_[size()] = '\0';
2092 }
2093
2094
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 48 auto dest = resize_impl(
2095 id_scheme, n + 1, op);
2096
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 48 s.copy(dest, n);
2097 48 dest[n] = ':';
2098 48 impl_.scheme_ = id;
2099 48 check_invariants();
2100 61 }
2101
2102 char*
2103 101 url_base::
2104 set_user_impl(
2105 std::size_t n,
2106 op_t& op)
2107 {
2108 101 check_invariants();
2109
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 101 if(impl_.len(id_pass) != 0)
2110 {
2111 // keep "//"
2112 50 auto dest = resize_impl(
2113 id_user, 2 + n, op);
2114 50 check_invariants();
2115 50 return dest + 2;
2116 }
2117 // add authority
2118 bool const make_absolute =
2119
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 91 !is_path_absolute() &&
2120
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 40 !impl_.get(id_path).empty();
2121 102 auto dest = resize_impl(
2122 51 id_user, 2 + n + 1 + make_absolute, op);
2123 51 impl_.split(id_user, 2 + n);
2124 51 dest[0] = '/';
2125 51 dest[1] = '/';
2126 51 dest[2 + n] = '@';
2127
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 51 if (make_absolute)
2128 {
2129 4 impl_.split(id_pass, 1);
2130 4 impl_.split(id_host, 0);
2131 4 impl_.split(id_port, 0);
2132 4 dest[3 + n] = '/';
2133 }
2134 51 check_invariants();
2135 51 return dest + 2;
2136 }
2137
2138 char*
2139 82 url_base::
2140 set_password_impl(
2141 std::size_t n,
2142 op_t& op)
2143 {
2144 82 check_invariants();
2145
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 82 if(impl_.len(id_user) != 0)
2146 {
2147 // already have authority
2148 66 auto const dest = resize_impl(
2149 id_pass, 1 + n + 1, op);
2150 66 dest[0] = ':';
2151 66 dest[n + 1] = '@';
2152 66 check_invariants();
2153 66 return dest + 1;
2154 }
2155 // add authority
2156 bool const make_absolute =
2157
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 25 !is_path_absolute() &&
2158
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 9 !impl_.get(id_path).empty();
2159 auto const dest =
2160 32 resize_impl(
2161 id_user, id_host,
2162 16 2 + 1 + n + 1 + make_absolute, op);
2163 16 impl_.split(id_user, 2);
2164 16 dest[0] = '/';
2165 16 dest[1] = '/';
2166 16 dest[2] = ':';
2167 16 dest[2 + n + 1] = '@';
2168
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 16 if (make_absolute)
2169 {
2170 2 impl_.split(id_pass, 2 + n);
2171 2 impl_.split(id_host, 0);
2172 2 impl_.split(id_port, 0);
2173 2 dest[4 + n] = '/';
2174 }
2175 16 check_invariants();
2176 16 return dest + 3;
2177 }
2178
2179 char*
2180 99 url_base::
2181 set_userinfo_impl(
2182 std::size_t n,
2183 op_t& op)
2184 {
2185 // "//" {dest} "@"
2186 99 check_invariants();
2187 bool const make_absolute =
2188
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 180 !is_path_absolute() &&
2189
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 81 !impl_.get(id_path).empty();
2190 198 auto dest = resize_impl(
2191 99 id_user, id_host, n + 3 + make_absolute, op);
2192 99 impl_.split(id_user, n + 2);
2193 99 dest[0] = '/';
2194 99 dest[1] = '/';
2195 99 dest[n + 2] = '@';
2196
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 99 if (make_absolute)
2197 {
2198 2 impl_.split(id_pass, 1);
2199 2 impl_.split(id_host, 0);
2200 2 impl_.split(id_port, 0);
2201 2 dest[3 + n] = '/';
2202 }
2203 99 check_invariants();
2204 99 return dest + 2;
2205 }
2206
2207 char*
2208 206 url_base::
2209 set_host_impl(
2210 std::size_t n,
2211 op_t& op)
2212 {
2213 206 check_invariants();
2214
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 206 if(impl_.len(id_user) == 0)
2215 {
2216 // add authority
2217 bool make_absolute =
2218
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 184 !is_path_absolute() &&
2219 90 impl_.len(id_path) != 0;
2220 94 auto pn = impl_.len(id_path);
2221 188 auto dest = resize_impl(
2222 94 id_user, n + 2 + make_absolute, op);
2223 94 impl_.split(id_user, 2);
2224 94 impl_.split(id_pass, 0);
2225 94 impl_.split(id_host, n);
2226 94 impl_.split(id_port, 0);
2227 94 impl_.split(id_path, pn + make_absolute);
2228
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 94 if (make_absolute)
2229 {
2230 7 dest[n + 2] = '/';
2231 7 ++impl_.decoded_[id_path];
2232 }
2233 94 dest[0] = '/';
2234 94 dest[1] = '/';
2235 94 check_invariants();
2236 94 return dest + 2;
2237 }
2238 // already have authority
2239 112 auto const dest = resize_impl(
2240 id_host, n, op);
2241 112 check_invariants();
2242 112 return dest;
2243 }
2244
2245 char*
2246 107 url_base::
2247 set_port_impl(
2248 std::size_t n,
2249 op_t& op)
2250 {
2251 107 check_invariants();
2252
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 107 if(impl_.len(id_user) != 0)
2253 {
2254 // authority exists
2255 85 auto dest = resize_impl(
2256 id_port, n + 1, op);
2257 85 dest[0] = ':';
2258 85 check_invariants();
2259 85 return dest + 1;
2260 }
2261 bool make_absolute =
2262
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 38 !is_path_absolute() &&
2263 16 impl_.len(id_path) != 0;
2264 44 auto dest = resize_impl(
2265 22 id_user, 3 + n + make_absolute, op);
2266 22 impl_.split(id_user, 2);
2267 22 impl_.split(id_pass, 0);
2268 22 impl_.split(id_host, 0);
2269 22 dest[0] = '/';
2270 22 dest[1] = '/';
2271 22 dest[2] = ':';
2272
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 22 if (make_absolute)
2273 {
2274 2 impl_.split(id_port, n + 1);
2275 2 dest[n + 3] = '/';
2276 2 ++impl_.decoded_[id_path];
2277 }
2278 22 check_invariants();
2279 22 return dest + 3;
2280 }
2281
2282 char*
2283 188 url_base::
2284 set_path_impl(
2285 std::size_t n,
2286 op_t& op)
2287 {
2288 188 check_invariants();
2289 188 auto const dest = resize_impl(
2290 id_path, n, op);
2291 188 return dest;
2292 }
2293
2294
2295 //------------------------------------------------
2296
2297 // return the first segment of the path.
2298 // this is needed for some algorithms.
2299 core::string_view
2300 45 url_base::
2301 first_segment() const noexcept
2302 {
2303
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 45 if(impl_.nseg_ == 0)
2304 7 return {};
2305 38 auto const p0 = impl_.cs_ +
2306 38 impl_.offset(id_path) +
2307 38 detail::path_prefix(
2308 38 impl_.get(id_path));
2309 38 auto const end = impl_.cs_ +
2310 38 impl_.offset(id_query);
2311
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 38 if(impl_.nseg_ == 1)
2312 42 return core::string_view(
2313 21 p0, end - p0);
2314 17 auto p = p0;
2315
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 39 while(*p != '/')
2316 22 ++p;
2317
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 17 BOOST_ASSERT(p < end);
2318 17 return core::string_view(p0, p - p0);
2319 }
2320
2321 detail::segments_iter_impl
2322 597 url_base::
2323 edit_segments(
2324 detail::segments_iter_impl const& it0,
2325 detail::segments_iter_impl const& it1,
2326 detail::any_segments_iter&& src,
2327 // -1 = preserve
2328 // 0 = make relative (can fail)
2329 // 1 = make absolute
2330 int absolute)
2331 {
2332 // Iterator doesn't belong to this url
2333
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 597 BOOST_ASSERT(it0.ref.alias_of(impl_));
2334
2335 // Iterator doesn't belong to this url
2336
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 597 BOOST_ASSERT(it1.ref.alias_of(impl_));
2337
2338 // Iterator is in the wrong order
2339
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 597 BOOST_ASSERT(it0.index <= it1.index);
2340
2341 // Iterator is out of range
2342
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 597 BOOST_ASSERT(it0.index <= impl_.nseg_);
2343
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 597 BOOST_ASSERT(it0.pos <= impl_.len(id_path));
2344
2345 // Iterator is out of range
2346
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 597 BOOST_ASSERT(it1.index <= impl_.nseg_);
2347
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 597 BOOST_ASSERT(it1.pos <= impl_.len(id_path));
2348
2349 //------------------------------------------------
2350 //
2351 // Calculate output prefix
2352 //
2353 // 0 = ""
2354 // 1 = "/"
2355 // 2 = "./"
2356 // 3 = "/./"
2357 //
2358 597 bool const is_abs = is_path_absolute();
2359
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 597 if(has_authority())
2360 {
2361 // Check if the new
2362 // path would be empty
2363
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 213 if( src.fast_nseg == 0 &&
2364
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 108 it0.index == 0 &&
2365
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 18 it1.index == impl_.nseg_)
2366 {
2367 // VFALCO we don't have
2368 // access to nchar this early
2369 //
2370 //BOOST_ASSERT(nchar == 0);
2371 15 absolute = 0;
2372 }
2373 else
2374 {
2375 // prefix "/" required
2376 198 absolute = 1;
2377 }
2378 }
2379
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 384 else if(absolute < 0)
2380 {
2381 384 absolute = is_abs; // preserve
2382 }
2383 597 auto const path_pos = impl_.offset(id_path);
2384
2385 597 std::size_t nchar = 0;
2386 597 std::size_t prefix = 0;
2387 597 bool encode_colons = false;
2388 597 bool cp_src_prefix = false;
2389
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 597 if(it0.index > 0)
2390 {
2391 // first segment unchanged
2392 323 prefix = src.fast_nseg > 0;
2393 }
2394
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 274 else if(src.fast_nseg > 0)
2395 {
2396 // first segment from src
2397
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 221 if(! src.front.empty())
2398 {
2399
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 162 if( src.front == "." &&
2400
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 7 src.fast_nseg > 1)
2401
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 4 if (src.s.empty())
2402 {
2403 // if front is ".", we need the extra "." in the prefix
2404 // which will maintain the invariant that segments represent
2405 // {"."}
2406 4 prefix = 2 + absolute;
2407 }
2408 else
2409 {
2410 // if the "." prefix is explicitly required from set_path
2411 // we do not include an extra "." segment
2412 ✗ prefix = absolute;
2413 ✗ cp_src_prefix = true;
2414 }
2415
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 151 else if(absolute)
2416 79 prefix = 1;
2417
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 140 else if(has_scheme() ||
2418
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 68 ! src.front.contains(':'))
2419 67 prefix = 0;
2420 else
2421 {
2422 5 prefix = 0;
2423 5 encode_colons = true;
2424 }
2425 }
2426 else
2427 {
2428 66 prefix = 2 + absolute;
2429 }
2430 }
2431 else
2432 {
2433 // first segment from it1
2434 53 auto const p =
2435 53 impl_.cs_ + path_pos + it1.pos;
2436 106 switch(impl_.cs_ +
2437
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 53 impl_.offset(id_query) - p)
2438 {
2439 34 case 0:
2440 // points to end
2441 34 prefix = absolute;
2442 34 break;
2443 11 default:
2444
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 11 BOOST_ASSERT(*p == '/');
2445
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 11 if(p[1] != '/')
2446 {
2447
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 11 if(absolute)
2448 5 prefix = 1;
2449
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 11 else if(has_scheme() ||
2450
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 11 ! it1.dereference().contains(':'))
2451 5 prefix = 0;
2452 else
2453 1 prefix = 2;
2454 11 break;
2455 }
2456 // empty
2457 BOOST_FALLTHROUGH;
2458 case 1:
2459 // empty
2460
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 8 BOOST_ASSERT(*p == '/');
2461 8 prefix = 2 + absolute;
2462 8 break;
2463 }
2464 }
2465
2466 // append '/' to new segs
2467 // if inserting at front.
2468 597 std::size_t const suffix =
2469 776 it1.index == 0 &&
2470
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 660 impl_.nseg_ > 0 &&
2471
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 63 src.fast_nseg > 0;
2472
2473 //------------------------------------------------
2474 //
2475 // Measure the number of encoded characters
2476 // of output, and the number of inserted
2477 // segments including internal separators.
2478 //
2479 597 src.encode_colons = encode_colons;
2480 597 std::size_t nseg = 0;
2481
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 597 if(src.measure(nchar))
2482 {
2483 408 src.encode_colons = false;
2484 for(;;)
2485 {
2486 733 ++nseg;
2487
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 733 if(! src.measure(nchar))
2488 406 break;
2489 325 ++nchar;
2490 }
2491 }
2492
2493
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 595 switch(src.fast_nseg)
2494 {
2495 189 case 0:
2496
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 189 BOOST_ASSERT(nseg == 0);
2497 189 break;
2498 219 case 1:
2499
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 219 BOOST_ASSERT(nseg == 1);
2500 219 break;
2501 187 case 2:
2502
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 187 BOOST_ASSERT(nseg >= 2);
2503 187 break;
2504 }
2505
2506 //------------------------------------------------
2507 //
2508 // Calculate [pos0, pos1) to remove
2509 //
2510 595 auto pos0 = it0.pos;
2511
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 595 if(it0.index == 0)
2512 {
2513 // patch pos for prefix
2514 272 pos0 = 0;
2515 }
2516 595 auto pos1 = it1.pos;
2517
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 595 if(it1.index == 0)
2518 {
2519 // patch pos for prefix
2520 179 pos1 = detail::path_prefix(
2521 impl_.get(id_path));
2522 }
2523 416 else if(
2524
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 416 it0.index == 0 &&
2525
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 93 it1.index < impl_.nseg_ &&
2526 nseg == 0)
2527 {
2528 // Remove the slash from segment it1
2529 // if it is becoming the new first
2530 // segment.
2531 19 ++pos1;
2532 }
2533 // calc decoded size of old range
2534 auto const dn0 =
2535 595 detail::decode_bytes_unsafe(
2536 core::string_view(
2537 595 impl_.cs_ +
2538 595 impl_.offset(id_path) +
2539 pos0,
2540 pos1 - pos0));
2541
2542 //------------------------------------------------
2543 //
2544 // Resize
2545 //
2546 1190 op_t op(*this, &src.s);
2547 char* dest;
2548 char const* end;
2549 {
2550 595 auto const nremove = pos1 - pos0;
2551 // check overflow
2552
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 1190 if( nchar <= max_size() && (
2553 595 prefix + suffix <=
2554
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 595 max_size() - nchar))
2555 {
2556 595 nchar = prefix + nchar + suffix;
2557
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 939 if( nchar <= nremove ||
2558 344 nchar - nremove <=
2559
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 344 max_size() - size())
2560 595 goto ok;
2561 }
2562 // too large
2563 ✗ detail::throw_length_error();
2564 595 ok:
2565 auto const new_size =
2566 595 size() + nchar - nremove;
2567
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 595 reserve_impl(new_size, op);
2568 595 dest = s_ + path_pos + pos0;
2569 595 op.move(
2570 595 dest + nchar,
2571 595 s_ + path_pos + pos1,
2572 595 size() - path_pos - pos1);
2573 1190 impl_.set_size(
2574 id_path,
2575 595 impl_.len(id_path) + nchar - nremove);
2576
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 595 BOOST_ASSERT(size() == new_size);
2577 595 end = dest + nchar;
2578 595 impl_.nseg_ = impl_.nseg_ + nseg - (
2579 595 it1.index - it0.index) - cp_src_prefix;
2580
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 595 if(s_)
2581 593 s_[size()] = '\0';
2582 }
2583
2584 //------------------------------------------------
2585 //
2586 // Output segments and internal separators:
2587 //
2588 // prefix [ segment [ '/' segment ] ] suffix
2589 //
2590 595 auto const dest0 = dest;
2591
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 595 switch(prefix)
2592 {
2593 38 case 3:
2594 38 *dest++ = '/';
2595 38 *dest++ = '.';
2596 38 *dest++ = '/';
2597 38 break;
2598 41 case 2:
2599 41 *dest++ = '.';
2600 BOOST_FALLTHROUGH;
2601 323 case 1:
2602 323 *dest++ = '/';
2603 323 break;
2604 234 default:
2605 234 break;
2606 }
2607 595 src.rewind();
2608
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 595 if(nseg > 0)
2609 {
2610 406 src.encode_colons = encode_colons;
2611 for(;;)
2612 {
2613 731 src.copy(dest, end);
2614
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 731 if(--nseg == 0)
2615 406 break;
2616 325 *dest++ = '/';
2617 325 src.encode_colons = false;
2618 }
2619
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 406 if(suffix)
2620 63 *dest++ = '/';
2621 }
2622
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 595 BOOST_ASSERT(dest == dest0 + nchar);
2623
2624 // calc decoded size of new range,
2625 auto const dn =
2626 595 detail::decode_bytes_unsafe(
2627 595 core::string_view(dest0, dest - dest0));
2628 595 impl_.decoded_[id_path] += dn - dn0;
2629
2630 return detail::segments_iter_impl(
2631 1190 impl_, pos0, it0.index);
2632 }
2633
2634 //------------------------------------------------
2635
2636 auto
2637 138 url_base::
2638 edit_params(
2639 detail::params_iter_impl const& it0,
2640 detail::params_iter_impl const& it1,
2641 detail::any_params_iter&& src) ->
2642 detail::params_iter_impl
2643 {
2644 138 auto pos0 = impl_.offset(id_query);
2645 138 auto pos1 = pos0 + it1.pos;
2646 138 pos0 = pos0 + it0.pos;
2647
2648 // Iterator doesn't belong to this url
2649
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 138 BOOST_ASSERT(it0.ref.alias_of(impl_));
2650
2651 // Iterator doesn't belong to this url
2652
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 138 BOOST_ASSERT(it1.ref.alias_of(impl_));
2653
2654 // Iterator is in the wrong order
2655
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 138 BOOST_ASSERT(it0.index <= it1.index);
2656
2657 // Iterator is out of range
2658
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 138 BOOST_ASSERT(it0.index <= impl_.nparam_);
2659
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 138 BOOST_ASSERT(pos0 <= impl_.offset(id_frag));
2660
2661 // Iterator is out of range
2662
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 138 BOOST_ASSERT(it1.index <= impl_.nparam_);
2663
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 138 BOOST_ASSERT(pos1 <= impl_.offset(id_frag));
2664
2665 // calc decoded size of old range,
2666 // minus one if '?' or '&' prefixed
2667 auto const dn0 =
2668 138 detail::decode_bytes_unsafe(
2669 core::string_view(
2670 138 impl_.cs_ + pos0,
2671 pos1 - pos0)) - (
2672 138 impl_.len(id_query) > 0);
2673
2674 //------------------------------------------------
2675 //
2676 // Measure the number of encoded characters
2677 // of output, and the number of inserted
2678 // segments including internal separators.
2679 //
2680
2681 138 std::size_t nchar = 0;
2682 138 std::size_t nparam = 0;
2683
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 138 if(src.measure(nchar))
2684 {
2685 111 ++nchar; // for '?' or '&'
2686 for(;;)
2687 {
2688 176 ++nparam;
2689
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 176 if(! src.measure(nchar))
2690 111 break;
2691 65 ++nchar; // for '&'
2692 }
2693 }
2694
2695 //------------------------------------------------
2696 //
2697 // Resize
2698 //
2699 133 op_t op(*this, &src.s0, &src.s1);
2700 char* dest;
2701 char const* end;
2702 {
2703 133 auto const nremove = pos1 - pos0;
2704 // check overflow
2705
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 228 if( nchar > nremove &&
2706 95 nchar - nremove >
2707
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 95 max_size() - size())
2708 {
2709 // too large
2710 ✗ detail::throw_length_error();
2711 }
2712 133 auto const nparam1 =
2713 133 impl_.nparam_ + nparam - (
2714 133 it1.index - it0.index);
2715
1/2
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 133 reserve_impl(size() + nchar - nremove, op);
2716 133 dest = s_ + pos0;
2717 133 end = dest + nchar;
2718
2/2
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✓ Branch 1 taken 34 times.
 133 if(impl_.nparam_ > 0)
2719 {
2720 // needed when we move
2721 // the beginning of the query
2722 99 s_[impl_.offset(id_query)] = '&';
2723 }
2724 133 op.move(
2725 133 dest + nchar,
2726 133 impl_.cs_ + pos1,
2727 133 size() - pos1);
2728 266 impl_.set_size(
2729 id_query,
2730 133 impl_.len(id_query) +
2731 nchar - nremove);
2732 133 impl_.nparam_ = nparam1;
2733
1/2
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 133 if(nparam1 > 0)
2734 {
2735 // needed when we erase
2736 // the beginning of the query
2737 133 s_[impl_.offset(id_query)] = '?';
2738 }
2739
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 133 if(s_)
2740 133 s_[size()] = '\0';
2741 }
2742 133 auto const dest0 = dest;
2743
2744 //------------------------------------------------
2745 //
2746 // Output params and internal separators:
2747 //
2748 // [ '?' param ] [ '&' param ]
2749 //
2750
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 133 if(nparam > 0)
2751 {
2752
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 111 if(it0.index == 0)
2753 68 *dest++ = '?';
2754 else
2755 43 *dest++ = '&';
2756 111 src.rewind();
2757 for(;;)
2758 {
2759 176 src.copy(dest, end);
2760
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 176 if(--nparam == 0)
2761 111 break;
2762 65 *dest++ = '&';
2763 }
2764 }
2765
2766 // calc decoded size of new range,
2767 // minus one if '?' or '&' prefixed
2768 auto const dn =
2769 133 detail::decode_bytes_unsafe(
2770 133 core::string_view(dest0, dest - dest0)) - (
2771 133 impl_.len(id_query) > 0);
2772
2773 133 impl_.decoded_[id_query] += (dn - dn0);
2774
2775 return detail::params_iter_impl(
2776 133 impl_,
2777 133 pos0 - impl_.offset_[id_query],
2778 266 it0.index);
2779 133 }
2780
2781 //------------------------------------------------
2782
2783 void
2784 383 url_base::
2785 decoded_to_lower_impl(int id) noexcept
2786 {
2787 383 char* it = s_ + impl_.offset(id);
2788 383 char const* const end = s_ + impl_.offset(id + 1);
2789
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 2213 while(it < end)
2790 {
2791
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 1830 if (*it != '%')
2792 {
2793 3650 *it = grammar::to_lower(
2794 1825 *it);
2795 1825 ++it;
2796 1825 continue;
2797 }
2798 5 it += 3;
2799 }
2800 383 }
2801
2802 void
2803 38 url_base::
2804 to_lower_impl(int id) noexcept
2805 {
2806 38 char* it = s_ + impl_.offset(id);
2807 38 char const* const end = s_ + impl_.offset(id + 1);
2808
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 155 while(it < end)
2809 {
2810 234 *it = grammar::to_lower(
2811 117 *it);
2812 117 ++it;
2813 }
2814 38 }
2815
2816 } // urls
2817 } // boost
2818
2819