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Databases journals nsm 202 the scientific enterprise guides at I run CLANG_FORMAT_START=`git rev-parse HEAD~1` make format-cpp try to format modified cpp code in my pr commit, but it shows an error spawn Unknown system error -86%: Great Blog Example Him

$ make format-cpp-build  cd tools/clang-format && if [ -x /Users/feng/dev/node/./node ] && [ -e /Users/feng/dev/node/./node ]; then /Users/feng/dev/node/./node /Users/feng/dev/node/./deps/npm/bin/npm-cli.js ci; elif [ -x `command -v node` ] && [ -e `command -v node` ] && [ `command -v node` ]; then `command -v node` /Users/feng/dev/node/./deps/npm/bin/npm-cli.js ci; else echo "No available node, cannot run \"node /Users/feng/dev/node/./deps/npm/bin/npm-cli.js ci\""; exit 1; fi; added 19 packages, and audited 20 packages in 2s 4 packages are looking for funding  run `npm fund` for details found 0 vulnerabilities $ CLANG_FORMAT_START=`git rev-parse HEAD~1` make format-cpp Formatting C++ diff from f2498a36eeb42779abbfaa4fb29271d26f0ee457.. error: `tools/clang-format/node_modules/.bin/clang-format -style=file -lines=168:170 -lines=196:207 -lines=496:496 -lines=535:535 src/node_url.cc` failed $ tools/clang-format/node_modules/.bin/clang-format -style=file -lines=168:170 -lines=196:207 -lines=496:496 -lines=535:535 src/node_url.cc spawn Unknown system error -86% 

Ilove how to read a scholarly article I tried but not find any guide in the Node.js repo on how to format cpp code in the local environment. Best-Selling Homemade Items

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Van nimwegen oer item sharing learning to read scholarly articles I think you need to run make format-cpp-build one time and that will install tools/clang-format/node_modules/.bin/clang-format and the make format-cpp command will (hopefully) start working after that. Research Gap Clip Art

Chapter 2 how to read journal articles v chapter two how to read There is also make format-cpp-clean which is useful if make format-cpp-build fails for some reason. Where To Get Business Cards Made

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Read journal articles efficiently how to read a journal academic (Still looking to see if I can reproduce the issue. Suggestions/ideas more than welcome, of course.) Cash Advance Allowable

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Ppt how to read an academic article powerpoint presentation free error happen when invoke tools/clang-format/node_modules/.bin/clang-format -style=file -lines=168:170 -lines=196:207 -lines=496:496 -lines=535:535 src/node_url.cc, could you run this command on your side? Best Time To Post On Instagram Today

$ CLANG_FORMAT_START=`git rev-parse HEAD~1` make format-cpp Formatting C++ diff from f2498a36eeb42779abbfaa4fb29271d26f0ee457.. error: `tools/clang-format/node_modules/.bin/clang-format -style=file -lines=168:170 -lines=196:207 -lines=496:496 -lines=535:535 src/node_url.cc` failed $ tools/clang-format/node_modules/.bin/clang-format -style=file -lines=168:170 -lines=196:207 -lines=496:496 -lines=535:535 src/node_url.cc spawn Unknown system error -86% 

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$ tools/clang-format/node_modules/.bin/clang-format -style=file -lines=168:170 -lines=196:207 -lines=496:496 -lines=535:535 src/node_url.cc spawn Unknown system error -86% 

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Free Vector Art Graphics After some debugging, I find angular clang-format's darwin_x64 binary could not run on my computer: Creative IG Story

./tools/clang-format/node_modules/clang-format/bin/darwin_x64/clang-format zsh: bad CPU type in executable: ./tools/clang-format/node_modules/clang-format/bin/darwin_x64/clang-format

United Airlines Miles Card I searched google and found most of these errors show on mostly M1, but my computer is not m1 chip. I think it's a bug of clang-format Open Here Arrow

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Blog Structure Template tools/clang-format/node_modules/.bin/clang-format -style=file -lines=168:170 -lines=196:207 -lines=496:496 -lines=535:535 src/node_url.cc ran successfully and produced the output under Details (that is the formatted node_url.cc file, I imagine). Camera Business Cards

Details

#include "node_url.h" #include "base_object-inl.h" #include "node_errors.h" #include "node_external_reference.h" #include "node_i18n.h" #include "util-inl.h" #include <cmath> #include <cstdio> #include <numeric> #include <string> #include <vector> namespace node { using errors::TryCatchScope; using url::table_data::hex; using url::table_data::C0_CONTROL_ENCODE_SET; using url::table_data::FRAGMENT_ENCODE_SET; using url::table_data::PATH_ENCODE_SET; using url::table_data::USERINFO_ENCODE_SET; using url::table_data::QUERY_ENCODE_SET_NONSPECIAL; using url::table_data::QUERY_ENCODE_SET_SPECIAL; using v8::Array; using v8::Context; using v8::Function; using v8::FunctionCallbackInfo; using v8::HandleScope; using v8::Int32; using v8::Integer; using v8::Isolate; using v8::Local; using v8::MaybeLocal; using v8::NewStringType; using v8::Null; using v8::Object; using v8::String; using v8::Undefined; using v8::Value; Local<String> Utf8String(Isolate* isolate, const std::string& str) { return String::NewFromUtf8(isolate, str.data(), NewStringType::kNormal, str.length()).ToLocalChecked(); } namespace url { namespace { // https://url.spec.whatwg.org/#eof-code-point constexpr char kEOL = -1; // https://url.spec.whatwg.org/#concept-host class URLHost { public: ~URLHost(); void ParseIPv4Host(const char* input, size_t length); void ParseIPv6Host(const char* input, size_t length); void ParseOpaqueHost(const char* input, size_t length); void ParseHost(const char* input, size_t length, bool is_special, bool unicode = false); bool ParsingFailed() const { return type_ == HostType::H_FAILED; } std::string ToString() const; // Like ToString(), but avoids a copy in exchange for invalidating `*this`. std::string ToStringMove(); private: enum class HostType { H_FAILED, H_DOMAIN, H_IPV4, H_IPV6, H_OPAQUE, }; union Value { std::string domain_or_opaque; uint32_t ipv4; uint16_t ipv6[8]; ~Value() {} Value() : ipv4(0) {} }; Value value_; HostType type_ = HostType::H_FAILED; void Reset() { using string = std::string; switch (type_) { case HostType::H_DOMAIN: case HostType::H_OPAQUE: value_.domain_or_opaque.~string(); break; default: break; } type_ = HostType::H_FAILED; } // Setting the string members of the union with = is brittle because // it relies on them being initialized to a state that requires no // destruction of old data. // For a long time, that worked well enough because ParseIPv6Host() happens // to zero-fill `value_`, but that really is relying on standard library // internals too much. // These helpers are the easiest solution but we might want to consider // just not forcing strings into an union. void SetOpaque(std::string&& string) { Reset(); type_ = HostType::H_OPAQUE; new(&value_.domain_or_opaque) std::string(std::move(string)); } void SetDomain(std::string&& string) { Reset(); type_ = HostType::H_DOMAIN; new(&value_.domain_or_opaque) std::string(std::move(string)); } }; URLHost::~URLHost() { Reset(); } #define ARGS(XX) \ XX(ARG_FLAGS) \ XX(ARG_PROTOCOL) \ XX(ARG_USERNAME) \ XX(ARG_PASSWORD) \ XX(ARG_HOST) \ XX(ARG_PORT) \ XX(ARG_PATH) \ XX(ARG_QUERY) \ XX(ARG_FRAGMENT) \ XX(ARG_COUNT) // This one has to be last. enum url_cb_args { #define XX(name) name, ARGS(XX) #undef XX }; #define TWO_CHAR_STRING_TEST(bits, name, expr) \ template <typename T> \ bool name(const T ch1, const T ch2) { \ static_assert(sizeof(ch1) >= (bits) / 8, \ "Character must be wider than " #bits " bits"); \ return (expr); \ } \ template <typename T> \ bool name(const std::basic_string<T>& str) { \ static_assert(sizeof(str[0]) >= (bits) / 8, \ "Character must be wider than " #bits " bits"); \ return str.length() >= 2 && name(str[0], str[1]); \ } // https://infra.spec.whatwg.org/#ascii-tab-or-newline CHAR_TEST(8, IsASCIITabOrNewline, (ch == '\t' || ch == '\n' || ch == '\r')) // https://infra.spec.whatwg.org/#c0-control CHAR_TEST(8, IsC0Control, (ch >= '\0' && ch <= '\x1f')) // https://infra.spec.whatwg.org/#c0-control-or-space CHAR_TEST(8, IsC0ControlOrSpace, (ch >= '\0' && ch <= ' ')) // https://infra.spec.whatwg.org/#ascii-digit CHAR_TEST(8, IsASCIIDigit, (ch >= '0' && ch <= '9')) // https://infra.spec.whatwg.org/#ascii-hex-digit CHAR_TEST(8, IsASCIIHexDigit, (IsASCIIDigit(ch) || (ch >= 'A' && ch <= 'F') || (ch >= 'a' && ch <= 'f'))) // https://infra.spec.whatwg.org/#ascii-alpha CHAR_TEST(8, IsASCIIAlpha, ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z'))) // https://infra.spec.whatwg.org/#ascii-alphanumeric CHAR_TEST(8, IsASCIIAlphanumeric, (IsASCIIDigit(ch) || IsASCIIAlpha(ch))) // https://infra.spec.whatwg.org/#ascii-lowercase template <typename T> T ASCIILowercase(T ch) { return IsASCIIAlpha(ch) ? (ch | 0x20) : ch; } // https://url.spec.whatwg.org/#forbidden-host-code-point CHAR_TEST(8, IsForbiddenHostCodePoint, ch == '\0' || ch == '\t' || ch == '\n' || ch == '\r' || ch == ' ' || ch == '#' || ch == '/' || ch == ':' || ch == '?' || ch == '@' || ch == '[' || ch == '<' || ch == '>' || ch == '\\' || ch == ']' || ch == '^' || ch == '|') // https://url.spec.whatwg.org/#forbidden-domain-code-point CHAR_TEST(8, IsForbiddenDomainCodePoint, IsForbiddenHostCodePoint(ch) || IsC0Control(ch) || ch == '%' || ch == '\x7f') // https://url.spec.whatwg.org/#windows-drive-letter TWO_CHAR_STRING_TEST(8, IsWindowsDriveLetter, (IsASCIIAlpha(ch1) && (ch2 == ':' || ch2 == '|'))) // https://url.spec.whatwg.org/#normalized-windows-drive-letter TWO_CHAR_STRING_TEST(8, IsNormalizedWindowsDriveLetter, (IsASCIIAlpha(ch1) && ch2 == ':')) #undef TWO_CHAR_STRING_TEST bool BitAt(const uint8_t a[], const uint8_t i) { return !!(a[i >> 3] & (1 << (i & 7))); } // Appends ch to str. If ch position in encode_set is set, the ch will // be percent-encoded then appended. void AppendOrEscape(std::string* str, const unsigned char ch, const uint8_t encode_set[]) { if (BitAt(encode_set, ch)) *str += hex + ch * 4; // "%XX\0" has a length of 4 else *str += ch; } unsigned hex2bin(const char ch) { if (ch >= '0' && ch <= '9') return ch - '0'; if (ch >= 'A' && ch <= 'F') return 10 + (ch - 'A'); if (ch >= 'a' && ch <= 'f') return 10 + (ch - 'a'); UNREACHABLE(); } std::string PercentDecode(const char* input, size_t len) { std::string dest; if (len == 0) return dest; dest.reserve(len); const char* pointer = input; const char* end = input + len; while (pointer < end) { const char ch = pointer[0]; size_t remaining = end - pointer - 1; if (ch != '%' || remaining < 2 || (ch == '%' && (!IsASCIIHexDigit(pointer[1]) || !IsASCIIHexDigit(pointer[2])))) { dest += ch; pointer++; continue; } else { unsigned a = hex2bin(pointer[1]); unsigned b = hex2bin(pointer[2]); char c = static_cast<char>(a * 16 + b); dest += c; pointer += 3; } } return dest; } #define SPECIALS(XX) \ XX(ftp, 21, "ftp:") \ XX(file, -1, "file:") \ XX(http, 80, "http:") \ XX(https, 443, "https:") \ XX(ws, 80, "ws:") \ XX(wss, 443, "wss:") bool IsSpecial(const std::string& scheme) { #define V(_, __, name) if (scheme == name) return true; SPECIALS(V); #undef V return false; } Local<String> GetSpecial(Environment* env, const std::string& scheme) { #define V(key, _, name) if (scheme == name) \ return env->url_special_##key##_string(); SPECIALS(V) #undef V UNREACHABLE(); } int NormalizePort(const std::string& scheme, int p) { #define V(_, port, name) if (scheme == name && p == port) return -1; SPECIALS(V); #undef V return p; } // https://url.spec.whatwg.org/#start-with-a-windows-drive-letter bool StartsWithWindowsDriveLetter(const char* p, const char* end) { size_t length = end - p; return length >= 2 && IsWindowsDriveLetter(p[0], p[1]) && (length == 2 || p[2] == '/' || p[2] == '\\' || p[2] == '?' || p[2] == '#'); } #if defined(NODE_HAVE_I18N_SUPPORT) bool ToUnicode(const std::string& input, std::string* output) { MaybeStackBuffer<char> buf; if (i18n::ToUnicode(&buf, input.c_str(), input.length()) < 0) return false; output->assign(*buf, buf.length()); return true; } bool ToASCII(const std::string& input, std::string* output) { MaybeStackBuffer<char> buf; if (i18n::ToASCII(&buf, input.c_str(), input.length()) < 0) return false; if (buf.length() == 0) return false; output->assign(*buf, buf.length()); return true; } #else // !defined(NODE_HAVE_I18N_SUPPORT) // Intentional non-ops if ICU is not present. bool ToUnicode(const std::string& input, std::string* output) { *output = input; return true; } bool ToASCII(const std::string& input, std::string* output) { *output = input; return true; } #endif // !defined(NODE_HAVE_I18N_SUPPORT) #define NS_IN6ADDRSZ 16 void URLHost::ParseIPv6Host(const char* input, size_t length) { CHECK_EQ(type_, HostType::H_FAILED); unsigned char buf[sizeof(struct in6_addr)]; MaybeStackBuffer<char> ipv6(length + 1); *(*ipv6 + length) = 0; memset(buf, 0, sizeof(buf)); memcpy(*ipv6, input, sizeof(const char) * length); int ret = uv_inet_pton(AF_INET6, *ipv6, buf); if (ret != 0) { return; } // Ref: https://sourceware.org/git/?p=glibc.git;a=blob;f=resolv/inet_ntop.c;h=c4d38c0f951013e51a4fc6eaa8a9b82e146abe5a;hb=HEAD#l119 for (int i = 0; i < NS_IN6ADDRSZ; i += 2) { value_.ipv6[i >> 1] = (buf[i] << 8) | buf[i + 1]; } type_ = HostType::H_IPV6; } // https://url.spec.whatwg.org/#ipv4-number-parser int64_t ParseIPv4Number(const char* start, const char* end) { if (end - start == 0) return -1; unsigned R = 10; if (end - start >= 2 && start[0] == '0' && (start[1] | 0x20) == 'x') { start += 2; R = 16; } else if (end - start >= 2 && start[0] == '0') { start++; R = 8; } if (end - start == 0) return 0; const char* p = start; while (p < end) { const char ch = p[0]; switch (R) { case 8: if (ch < '0' || ch > '7') return -1; break; case 10: if (!IsASCIIDigit(ch)) return -1; break; case 16: if (!IsASCIIHexDigit(ch)) return -1; break; } p++; } return strtoll(start, nullptr, R); } // https://url.spec.whatwg.org/#ends-in-a-number-checker bool EndsInANumber(const std::string& input) { std::vector<std::string> parts = SplitString(input, '.', false); if (parts.empty()) return false; if (parts.back().empty()) { if (parts.size() == 1) return false; parts.pop_back(); } const std::string& last = parts.back(); // If last is non-empty and contains only ASCII digits, then return true if (!last.empty() && last.find_first_not_of("0123456789") == std::string::npos) { return true; } const char* last_str = last.c_str(); int64_t num = ParseIPv4Number(last_str, last_str + last.size()); if (num >= 0) return true; return false; } void URLHost::ParseIPv4Host(const char* input, size_t length) { CHECK_EQ(type_, HostType::H_FAILED); const char* pointer = input; const char* mark = input; const char* end = pointer + length; int parts = 0; uint32_t val = 0; uint64_t numbers[4]; int tooBigNumbers = 0; if (length == 0) return; while (pointer <= end) { const char ch = pointer < end ? pointer[0] : kEOL; int64_t remaining = end - pointer - 1; if (ch == '.' || ch == kEOL) { if (++parts > static_cast<int>(arraysize(numbers))) return; if (pointer == mark) return; int64_t n = ParseIPv4Number(mark, pointer); if (n < 0) return; if (n > 255) { tooBigNumbers++; } numbers[parts - 1] = n; mark = pointer + 1; if (ch == '.' && remaining == 0) break; } pointer++; } CHECK_GT(parts, 0); // If any but the last item in numbers is greater than 255, return failure. // If the last item in numbers is greater than or equal to // 256^(5 - the number of items in numbers), return failure. if (tooBigNumbers > 1 || (tooBigNumbers == 1 && numbers[parts - 1] <= 255) || numbers[parts - 1] >= pow(256, static_cast<double>(5 - parts))) { return; } type_ = HostType::H_IPV4; val = static_cast<uint32_t>(numbers[parts - 1]); for (int n = 0; n < parts - 1; n++) { double b = 3 - n; val += static_cast<uint32_t>(numbers[n]) * static_cast<uint32_t>(pow(256, b)); } value_.ipv4 = val; } void URLHost::ParseOpaqueHost(const char* input, size_t length) { CHECK_EQ(type_, HostType::H_FAILED); std::string output; output.reserve(length); for (size_t i = 0; i < length; i++) { const char ch = input[i]; if (IsForbiddenHostCodePoint(ch)) { return; } else { AppendOrEscape(&output, ch, C0_CONTROL_ENCODE_SET); } } SetOpaque(std::move(output)); } void URLHost::ParseHost(const char* input, size_t length, bool is_special, bool unicode) { CHECK_EQ(type_, HostType::H_FAILED); const char* pointer = input; if (length == 0) return; if (pointer[0] == '[') { if (pointer[length - 1] != ']') return; return ParseIPv6Host(++pointer, length - 2); } if (!is_special) return ParseOpaqueHost(input, length); // First, we have to percent decode std::string decoded = PercentDecode(input, length); // Then we have to punycode toASCII if (!ToASCII(decoded, &decoded)) return; // If any of the following characters are still present, we have to fail for (size_t n = 0; n < decoded.size(); n++) { const char ch = decoded[n]; if (IsForbiddenDomainCodePoint(ch)) { return; } } // If domain ends in a number, then return the result of IPv4 parsing domain if (EndsInANumber(decoded)) { return ParseIPv4Host(decoded.c_str(), decoded.length()); } // If the unicode flag is set, run the result through punycode ToUnicode if (unicode && !ToUnicode(decoded, &decoded)) return; // It's not an IPv4 or IPv6 address, it must be a domain SetDomain(std::move(decoded)); } // Locates the longest sequence of 0 segments in an IPv6 address // in order to use the :: compression when serializing template <typename T> T* FindLongestZeroSequence(T* values, size_t len) { T* start = values; T* end = start + len; T* result = nullptr; T* current = nullptr; unsigned counter = 0, longest = 1; while (start < end) { if (*start == 0) { if (current == nullptr) current = start; counter++; } else { if (counter > longest) { longest = counter; result = current; } counter = 0; current = nullptr; } start++; } if (counter > longest) result = current; return result; } std::string URLHost::ToStringMove() { std::string return_value; switch (type_) { case HostType::H_DOMAIN: case HostType::H_OPAQUE: return_value = std::move(value_.domain_or_opaque); break; default: return_value = ToString(); break; } Reset(); return return_value; } std::string URLHost::ToString() const { std::string dest; switch (type_) { case HostType::H_DOMAIN: case HostType::H_OPAQUE: return value_.domain_or_opaque; case HostType::H_IPV4: { dest.reserve(15); uint32_t value = value_.ipv4; for (int n = 0; n < 4; n++) { dest.insert(0, std::to_string(value % 256)); if (n < 3) dest.insert(0, 1, '.'); value /= 256; } break; } case HostType::H_IPV6: { dest.reserve(41); dest += '['; const uint16_t* start = &value_.ipv6[0]; const uint16_t* compress_pointer = FindLongestZeroSequence(start, 8); bool ignore0 = false; for (int n = 0; n <= 7; n++) { const uint16_t* piece = &value_.ipv6[n]; if (ignore0 && *piece == 0) continue; else if (ignore0) ignore0 = false; if (compress_pointer == piece) { dest += n == 0 ? "::" : ":"; ignore0 = true; continue; } char buf[5]; snprintf(buf, sizeof(buf), "%x", *piece); dest += buf; if (n < 7) dest += ':'; } dest += ']'; break; } case HostType::H_FAILED: break; } return dest; } bool ParseHost(const std::string& input, std::string* output, bool is_special, bool unicode = false) { if (input.empty()) { output->clear(); return true; } URLHost host; host.ParseHost(input.c_str(), input.length(), is_special, unicode); if (host.ParsingFailed()) return false; *output = host.ToStringMove(); return true; } std::vector<std::string> FromJSStringArray(Environment* env, Local<Array> array) { std::vector<std::string> vec; if (array->Length() > 0) vec.reserve(array->Length()); for (size_t n = 0; n < array->Length(); n++) { Local<Value> val = array->Get(env->context(), n).ToLocalChecked(); if (val->IsString()) { Utf8Value value(env->isolate(), val.As<String>()); vec.emplace_back(*value, value.length()); } } return vec; } url_data HarvestBase(Environment* env, Local<Object> base_obj) { url_data base; Local<Context> context = env->context(); Local<Value> flags = base_obj->Get(env->context(), env->flags_string()).ToLocalChecked(); if (flags->IsInt32()) base.flags = flags->Int32Value(context).FromJust(); Local<Value> port = base_obj->Get(env->context(), env->port_string()).ToLocalChecked(); if (port->IsInt32()) base.port = port->Int32Value(context).FromJust(); Local<Value> scheme = base_obj->Get(env->context(), env->scheme_string()).ToLocalChecked(); base.scheme = Utf8Value(env->isolate(), scheme).out(); auto GetStr = [&](std::string url_data::*member, int flag, Local<String> name, bool empty_as_present) { Local<Value> value = base_obj->Get(env->context(), name).ToLocalChecked(); if (value->IsString()) { Utf8Value utf8value(env->isolate(), value.As<String>()); (base.*member).assign(*utf8value, utf8value.length()); if (empty_as_present || value.As<String>()->Length() != 0) { base.flags |= flag; } } }; GetStr(&url_data::username, URL_FLAGS_HAS_USERNAME, env->username_string(), false); GetStr(&url_data::password, URL_FLAGS_HAS_PASSWORD, env->password_string(), false); GetStr(&url_data::host, URL_FLAGS_HAS_HOST, env->host_string(), true); GetStr(&url_data::query, URL_FLAGS_HAS_QUERY, env->query_string(), true); GetStr(&url_data::fragment, URL_FLAGS_HAS_FRAGMENT, env->fragment_string(), true); Local<Value> path = base_obj->Get(env->context(), env->path_string()).ToLocalChecked(); if (path->IsArray()) { base.flags |= URL_FLAGS_HAS_PATH; base.path = FromJSStringArray(env, path.As<Array>()); } return base; } url_data HarvestContext(Environment* env, Local<Object> context_obj) { url_data context; Local<Value> flags = context_obj->Get(env->context(), env->flags_string()).ToLocalChecked(); if (flags->IsInt32()) { static constexpr int32_t kCopyFlagsMask = URL_FLAGS_SPECIAL | URL_FLAGS_CANNOT_BE_BASE | URL_FLAGS_HAS_USERNAME | URL_FLAGS_HAS_PASSWORD | URL_FLAGS_HAS_HOST; context.flags |= flags.As<Int32>()->Value() & kCopyFlagsMask; } Local<Value> scheme = context_obj->Get(env->context(), env->scheme_string()).ToLocalChecked(); if (scheme->IsString()) { Utf8Value value(env->isolate(), scheme); context.scheme.assign(*value, value.length()); } Local<Value> port = context_obj->Get(env->context(), env->port_string()).ToLocalChecked(); if (port->IsInt32()) context.port = port.As<Int32>()->Value(); if (context.flags & URL_FLAGS_HAS_USERNAME) { Local<Value> username = context_obj->Get(env->context(), env->username_string()).ToLocalChecked(); CHECK(username->IsString()); Utf8Value value(env->isolate(), username); context.username.assign(*value, value.length()); } if (context.flags & URL_FLAGS_HAS_PASSWORD) { Local<Value> password = context_obj->Get(env->context(), env->password_string()).ToLocalChecked(); CHECK(password->IsString()); Utf8Value value(env->isolate(), password); context.password.assign(*value, value.length()); } Local<Value> host = context_obj->Get(env->context(), env->host_string()).ToLocalChecked(); if (host->IsString()) { Utf8Value value(env->isolate(), host); context.host.assign(*value, value.length()); } return context; } // Single dot segment can be ".", "%2e", or "%2E" bool IsSingleDotSegment(const std::string& str) { switch (str.size()) { case 1: return str == "."; case 3: return str[0] == '%' && str[1] == '2' && ASCIILowercase(str[2]) == 'e'; default: return false; } } // Double dot segment can be: // "..", ".%2e", ".%2E", "%2e.", "%2E.", // "%2e%2e", "%2E%2E", "%2e%2E", or "%2E%2e" bool IsDoubleDotSegment(const std::string& str) { switch (str.size()) { case 2: return str == ".."; case 4: if (str[0] != '.' && str[0] != '%') return false; return ((str[0] == '.' && str[1] == '%' && str[2] == '2' && ASCIILowercase(str[3]) == 'e') || (str[0] == '%' && str[1] == '2' && ASCIILowercase(str[2]) == 'e' && str[3] == '.')); case 6: return (str[0] == '%' && str[1] == '2' && ASCIILowercase(str[2]) == 'e' && str[3] == '%' && str[4] == '2' && ASCIILowercase(str[5]) == 'e'); default: return false; } } void ShortenUrlPath(struct url_data* url) { if (url->path.empty()) return; if (url->path.size() == 1 && url->scheme == "file:" && IsNormalizedWindowsDriveLetter(url->path[0])) return; url->path.pop_back(); } } // anonymous namespace void URL::Parse(const char* input, size_t len, enum url_parse_state state_override, struct url_data* url, bool has_url, const struct url_data* base, bool has_base) { const char* p = input; const char* end = input + len; if (!has_url) { for (const char* ptr = p; ptr < end; ptr++) { if (IsC0ControlOrSpace(*ptr)) p++; else break; } for (const char* ptr = end - 1; ptr >= p; ptr--) { if (IsC0ControlOrSpace(*ptr)) end--; else break; } input = p; len = end - p; } // The spec says we should strip out any ASCII tabs or newlines. // In those cases, we create another std::string instance with the filtered // contents, but in the general case we avoid the overhead. std::string whitespace_stripped; for (const char* ptr = p; ptr < end; ptr++) { if (!IsASCIITabOrNewline(*ptr)) continue; // Hit tab or newline. Allocate storage, copy what we have until now, // and then iterate and filter all similar characters out. whitespace_stripped.reserve(len - 1); whitespace_stripped.assign(p, ptr - p); // 'ptr + 1' skips the current char, which we know to be tab or newline. for (ptr = ptr + 1; ptr < end; ptr++) { if (!IsASCIITabOrNewline(*ptr)) whitespace_stripped += *ptr; } // Update variables like they should have looked like if the string // had been stripped of whitespace to begin with. input = whitespace_stripped.c_str(); len = whitespace_stripped.size(); p = input; end = input + len; break; } bool atflag = false; // Set when @ has been seen. bool square_bracket_flag = false; // Set inside of [...] bool password_token_seen_flag = false; // Set after a : after an username. std::string buffer; // Set the initial parse state. const bool has_state_override = state_override != kUnknownState; enum url_parse_state state = has_state_override ? state_override : kSchemeStart; if (state < kSchemeStart || state > kFragment) { url->flags |= URL_FLAGS_INVALID_PARSE_STATE; return; } while (p <= end) { const char ch = p < end ? p[0] : kEOL; bool special = (url->flags & URL_FLAGS_SPECIAL); bool cannot_be_base; bool special_back_slash = (special && ch == '\\'); switch (state) { case kSchemeStart: if (IsASCIIAlpha(ch)) { buffer += ASCIILowercase(ch); state = kScheme; } else if (!has_state_override) { state = kNoScheme; continue; } else { url->flags |= URL_FLAGS_FAILED; return; } break; case kScheme: if (IsASCIIAlphanumeric(ch) || ch == '+' || ch == '-' || ch == '.') { buffer += ASCIILowercase(ch); } else if (ch == ':' || (has_state_override && ch == kEOL)) { if (has_state_override && buffer.size() == 0) { url->flags |= URL_FLAGS_TERMINATED; return; } buffer += ':'; bool new_is_special = IsSpecial(buffer); if (has_state_override) { if ((special != new_is_special) || ((buffer == "file:") && ((url->flags & URL_FLAGS_HAS_USERNAME) || (url->flags & URL_FLAGS_HAS_PASSWORD) || (url->port != -1))) || (url->scheme == "file:" && url->host.empty())) { url->flags |= URL_FLAGS_TERMINATED; return; } } url->scheme = std::move(buffer); url->port = NormalizePort(url->scheme, url->port); if (new_is_special) { url->flags |= URL_FLAGS_SPECIAL; special = true; } else { url->flags &= ~URL_FLAGS_SPECIAL; special = false; } // `special_back_slash` equals to `(special && ch == '\\')` and `ch` // here always not equals to `\\`. So `special_back_slash` here always // equals to `false`. special_back_slash = false; buffer.clear(); if (has_state_override) return; if (url->scheme == "file:") { state = kFile; } else if (special && has_base && url->scheme == base->scheme) { state = kSpecialRelativeOrAuthority; } else if (special) { state = kSpecialAuthoritySlashes; } else if (p + 1 < end && p[1] == '/') { state = kPathOrAuthority; p++; } else { url->flags |= URL_FLAGS_CANNOT_BE_BASE; url->flags |= URL_FLAGS_HAS_PATH; url->path.emplace_back(""); state = kCannotBeBase; } } else if (!has_state_override) { buffer.clear(); state = kNoScheme; p = input; continue; } else { url->flags |= URL_FLAGS_FAILED; return; } break; case kNoScheme: cannot_be_base = has_base && (base->flags & URL_FLAGS_CANNOT_BE_BASE); if (!has_base || (cannot_be_base && ch != '#')) { url->flags |= URL_FLAGS_FAILED; return; } else if (cannot_be_base && ch == '#') { url->scheme = base->scheme; if (IsSpecial(url->scheme)) { url->flags |= URL_FLAGS_SPECIAL; special = true; } else { url->flags &= ~URL_FLAGS_SPECIAL; special = false; } special_back_slash = (special && ch == '\\'); if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } if (base->flags & URL_FLAGS_HAS_QUERY) { url->flags |= URL_FLAGS_HAS_QUERY; url->query = base->query; } if (base->flags & URL_FLAGS_HAS_FRAGMENT) { url->flags |= URL_FLAGS_HAS_FRAGMENT; url->fragment = base->fragment; } url->flags |= URL_FLAGS_CANNOT_BE_BASE; state = kFragment; } else if (has_base && base->scheme != "file:") { state = kRelative; continue; } else { url->scheme = "file:"; url->flags |= URL_FLAGS_SPECIAL; special = true; state = kFile; special_back_slash = (special && ch == '\\'); continue; } break; case kSpecialRelativeOrAuthority: if (ch == '/' && p + 1 < end && p[1] == '/') { state = kSpecialAuthorityIgnoreSlashes; p++; } else { state = kRelative; continue; } break; case kPathOrAuthority: if (ch == '/') { state = kAuthority; } else { state = kPath; continue; } break; case kRelative: url->scheme = base->scheme; if (IsSpecial(url->scheme)) { url->flags |= URL_FLAGS_SPECIAL; special = true; } else { url->flags &= ~URL_FLAGS_SPECIAL; special = false; } special_back_slash = (special && ch == '\\'); switch (ch) { case kEOL: if (base->flags & URL_FLAGS_HAS_USERNAME) { url->flags |= URL_FLAGS_HAS_USERNAME; url->username = base->username; } if (base->flags & URL_FLAGS_HAS_PASSWORD) { url->flags |= URL_FLAGS_HAS_PASSWORD; url->password = base->password; } if (base->flags & URL_FLAGS_HAS_HOST) { url->flags |= URL_FLAGS_HAS_HOST; url->host = base->host; } if (base->flags & URL_FLAGS_HAS_QUERY) { url->flags |= URL_FLAGS_HAS_QUERY; url->query = base->query; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } url->port = base->port; break; case '/': state = kRelativeSlash; break; case '?': if (base->flags & URL_FLAGS_HAS_USERNAME) { url->flags |= URL_FLAGS_HAS_USERNAME; url->username = base->username; } if (base->flags & URL_FLAGS_HAS_PASSWORD) { url->flags |= URL_FLAGS_HAS_PASSWORD; url->password = base->password; } if (base->flags & URL_FLAGS_HAS_HOST) { url->flags |= URL_FLAGS_HAS_HOST; url->host = base->host; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } url->port = base->port; state = kQuery; break; case '#': if (base->flags & URL_FLAGS_HAS_USERNAME) { url->flags |= URL_FLAGS_HAS_USERNAME; url->username = base->username; } if (base->flags & URL_FLAGS_HAS_PASSWORD) { url->flags |= URL_FLAGS_HAS_PASSWORD; url->password = base->password; } if (base->flags & URL_FLAGS_HAS_HOST) { url->flags |= URL_FLAGS_HAS_HOST; url->host = base->host; } if (base->flags & URL_FLAGS_HAS_QUERY) { url->flags |= URL_FLAGS_HAS_QUERY; url->query = base->query; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } url->port = base->port; state = kFragment; break; default: if (special_back_slash) { state = kRelativeSlash; } else { if (base->flags & URL_FLAGS_HAS_USERNAME) { url->flags |= URL_FLAGS_HAS_USERNAME; url->username = base->username; } if (base->flags & URL_FLAGS_HAS_PASSWORD) { url->flags |= URL_FLAGS_HAS_PASSWORD; url->password = base->password; } if (base->flags & URL_FLAGS_HAS_HOST) { url->flags |= URL_FLAGS_HAS_HOST; url->host = base->host; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; ShortenUrlPath(url); } url->port = base->port; state = kPath; continue; } } break; case kRelativeSlash: if (IsSpecial(url->scheme) && (ch == '/' || ch == '\\')) { state = kSpecialAuthorityIgnoreSlashes; } else if (ch == '/') { state = kAuthority; } else { if (base->flags & URL_FLAGS_HAS_USERNAME) { url->flags |= URL_FLAGS_HAS_USERNAME; url->username = base->username; } if (base->flags & URL_FLAGS_HAS_PASSWORD) { url->flags |= URL_FLAGS_HAS_PASSWORD; url->password = base->password; } if (base->flags & URL_FLAGS_HAS_HOST) { url->flags |= URL_FLAGS_HAS_HOST; url->host = base->host; } url->port = base->port; state = kPath; continue; } break; case kSpecialAuthoritySlashes: state = kSpecialAuthorityIgnoreSlashes; if (ch == '/' && p + 1 < end && p[1] == '/') { p++; } else { continue; } break; case kSpecialAuthorityIgnoreSlashes: if (ch != '/' && ch != '\\') { state = kAuthority; continue; } break; case kAuthority: if (ch == '@') { if (atflag) { buffer.reserve(buffer.size() + 3); buffer.insert(0, "%40"); } atflag = true; size_t blen = buffer.size(); if (blen > 0 && buffer[0] != ':') { url->flags |= URL_FLAGS_HAS_USERNAME; } for (size_t n = 0; n < blen; n++) { const char bch = buffer[n]; if (bch == ':') { url->flags |= URL_FLAGS_HAS_PASSWORD; if (!password_token_seen_flag) { password_token_seen_flag = true; continue; } } if (password_token_seen_flag) { AppendOrEscape(&url->password, bch, USERINFO_ENCODE_SET); } else { AppendOrEscape(&url->username, bch, USERINFO_ENCODE_SET); } } buffer.clear(); } else if (ch == kEOL || ch == '/' || ch == '?' || ch == '#' || special_back_slash) { if (atflag && buffer.size() == 0) { url->flags |= URL_FLAGS_FAILED; return; } p -= buffer.size() + 1; buffer.clear(); state = kHost; } else { buffer += ch; } break; case kHost: case kHostname: if (has_state_override && url->scheme == "file:") { state = kFileHost; continue; } else if (ch == ':' && !square_bracket_flag) { if (buffer.size() == 0) { url->flags |= URL_FLAGS_FAILED; return; } if (state_override == kHostname) { return; } url->flags |= URL_FLAGS_HAS_HOST; if (!ParseHost(buffer, &url->host, special)) { url->flags |= URL_FLAGS_FAILED; return; } buffer.clear(); state = kPort; } else if (ch == kEOL || ch == '/' || ch == '?' || ch == '#' || special_back_slash) { p--; if (special && buffer.size() == 0) { url->flags |= URL_FLAGS_FAILED; return; } if (has_state_override && buffer.size() == 0 && ((url->username.size() > 0 || url->password.size() > 0) || url->port != -1)) { url->flags |= URL_FLAGS_TERMINATED; return; } url->flags |= URL_FLAGS_HAS_HOST; if (!ParseHost(buffer, &url->host, special)) { url->flags |= URL_FLAGS_FAILED; return; } buffer.clear(); state = kPathStart; if (has_state_override) { return; } } else { if (ch == '[') square_bracket_flag = true; if (ch == ']') square_bracket_flag = false; buffer += ch; } break; case kPort: if (IsASCIIDigit(ch)) { buffer += ch; } else if (has_state_override || ch == kEOL || ch == '/' || ch == '?' || ch == '#' || special_back_slash) { if (buffer.size() > 0) { unsigned port = 0; // the condition port <= 0xffff prevents integer overflow for (size_t i = 0; port <= 0xffff && i < buffer.size(); i++) port = port * 10 + buffer[i] - '0'; if (port > 0xffff) { // TODO(TimothyGu): This hack is currently needed for the host // setter since it needs access to hostname if it is valid, and // if the FAILED flag is set the entire response to JS layer // will be empty. if (state_override == kHost) url->port = -1; else url->flags |= URL_FLAGS_FAILED; return; } // the port is valid url->port = NormalizePort(url->scheme, static_cast<int>(port)); if (url->port == -1) url->flags |= URL_FLAGS_IS_DEFAULT_SCHEME_PORT; buffer.clear(); } else if (has_state_override) { // TODO(TimothyGu): Similar case as above. if (state_override == kHost) url->port = -1; else url->flags |= URL_FLAGS_TERMINATED; return; } state = kPathStart; continue; } else { url->flags |= URL_FLAGS_FAILED; return; } break; case kFile: url->scheme = "file:"; url->host.clear(); url->flags |= URL_FLAGS_HAS_HOST; if (ch == '/' || ch == '\\') { state = kFileSlash; } else if (has_base && base->scheme == "file:") { switch (ch) { case kEOL: if (base->flags & URL_FLAGS_HAS_HOST) { url->host = base->host; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } if (base->flags & URL_FLAGS_HAS_QUERY) { url->flags |= URL_FLAGS_HAS_QUERY; url->query = base->query; } break; case '?': if (base->flags & URL_FLAGS_HAS_HOST) { url->host = base->host; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } url->flags |= URL_FLAGS_HAS_QUERY; url->query.clear(); state = kQuery; break; case '#': if (base->flags & URL_FLAGS_HAS_HOST) { url->host = base->host; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } if (base->flags & URL_FLAGS_HAS_QUERY) { url->flags |= URL_FLAGS_HAS_QUERY; url->query = base->query; } url->flags |= URL_FLAGS_HAS_FRAGMENT; url->fragment.clear(); state = kFragment; break; default: url->query.clear(); if (base->flags & URL_FLAGS_HAS_HOST) { url->host = base->host; } if (base->flags & URL_FLAGS_HAS_PATH) { url->flags |= URL_FLAGS_HAS_PATH; url->path = base->path; } if (!StartsWithWindowsDriveLetter(p, end)) { ShortenUrlPath(url); } else { url->path.clear(); } state = kPath; continue; } } else { state = kPath; continue; } break; case kFileSlash: if (ch == '/' || ch == '\\') { state = kFileHost; } else { if (has_base && base->scheme == "file:") { url->flags |= URL_FLAGS_HAS_HOST; url->host = base->host; if (!StartsWithWindowsDriveLetter(p, end) && IsNormalizedWindowsDriveLetter(base->path[0])) { url->flags |= URL_FLAGS_HAS_PATH; url->path.push_back(base->path[0]); } } state = kPath; continue; } break; case kFileHost: if (ch == kEOL || ch == '/' || ch == '\\' || ch == '?' || ch == '#') { if (!has_state_override && buffer.size() == 2 && IsWindowsDriveLetter(buffer)) { state = kPath; } else if (buffer.size() == 0) { url->flags |= URL_FLAGS_HAS_HOST; url->host.clear(); if (has_state_override) return; state = kPathStart; } else { std::string host; if (!ParseHost(buffer, &host, special)) { url->flags |= URL_FLAGS_FAILED; return; } if (host == "localhost") host.clear(); url->flags |= URL_FLAGS_HAS_HOST; url->host = host; if (has_state_override) return; buffer.clear(); state = kPathStart; } continue; } else { buffer += ch; } break; case kPathStart: if (IsSpecial(url->scheme)) { state = kPath; if (ch != '/' && ch != '\\') { continue; } } else if (!has_state_override && ch == '?') { url->flags |= URL_FLAGS_HAS_QUERY; url->query.clear(); state = kQuery; } else if (!has_state_override && ch == '#') { url->flags |= URL_FLAGS_HAS_FRAGMENT; url->fragment.clear(); state = kFragment; } else if (ch != kEOL) { state = kPath; if (ch != '/') { continue; } } else if (has_state_override && !(url->flags & URL_FLAGS_HAS_HOST)) { url->flags |= URL_FLAGS_HAS_PATH; url->path.emplace_back(""); } break; case kPath: if (ch == kEOL || ch == '/' || special_back_slash || (!has_state_override && (ch == '?' || ch == '#'))) { if (IsDoubleDotSegment(buffer)) { ShortenUrlPath(url); if (ch != '/' && !special_back_slash) { url->flags |= URL_FLAGS_HAS_PATH; url->path.emplace_back(""); } } else if (IsSingleDotSegment(buffer) && ch != '/' && !special_back_slash) { url->flags |= URL_FLAGS_HAS_PATH; url->path.emplace_back(""); } else if (!IsSingleDotSegment(buffer)) { if (url->scheme == "file:" && url->path.empty() && buffer.size() == 2 && IsWindowsDriveLetter(buffer)) { buffer[1] = ':'; } url->flags |= URL_FLAGS_HAS_PATH; url->path.emplace_back(std::move(buffer)); } buffer.clear(); if (ch == '?') { url->flags |= URL_FLAGS_HAS_QUERY; url->query.clear(); state = kQuery; } else if (ch == '#') { url->flags |= URL_FLAGS_HAS_FRAGMENT; url->fragment.clear(); state = kFragment; } } else { AppendOrEscape(&buffer, ch, PATH_ENCODE_SET); } break; case kCannotBeBase: switch (ch) { case '?': state = kQuery; break; case '#': state = kFragment; break; default: if (url->path.empty()) url->path.emplace_back(""); else if (ch != kEOL) AppendOrEscape(&url->path[0], ch, C0_CONTROL_ENCODE_SET); } break; case kQuery: if (ch == kEOL || (!has_state_override && ch == '#')) { url->flags |= URL_FLAGS_HAS_QUERY; url->query = std::move(buffer); buffer.clear(); if (ch == '#') state = kFragment; } else { AppendOrEscape(&buffer, ch, special ? QUERY_ENCODE_SET_SPECIAL : QUERY_ENCODE_SET_NONSPECIAL); } break; case kFragment: switch (ch) { case kEOL: url->flags |= URL_FLAGS_HAS_FRAGMENT; url->fragment = std::move(buffer); break; default: AppendOrEscape(&buffer, ch, FRAGMENT_ENCODE_SET); } break; default: url->flags |= URL_FLAGS_INVALID_PARSE_STATE; return; } p++; } } // NOLINT(readability/fn_size) // https://url.spec.whatwg.org/#url-serializing std::string URL::SerializeURL(const url_data& url, bool exclude = false) { std::string output; output.reserve( 10 + // We generally insert < 10 separator characters between URL parts url.scheme.size() + url.username.size() + url.password.size() + url.host.size() + url.query.size() + url.fragment.size() + url.href.size() + std::accumulate( url.path.begin(), url.path.end(), 0, [](size_t sum, const auto& str) { return sum + str.size(); })); output += url.scheme; if (url.flags & URL_FLAGS_HAS_HOST) { output += "//"; if (url.flags & URL_FLAGS_HAS_USERNAME || url.flags & URL_FLAGS_HAS_PASSWORD) { if (url.flags & URL_FLAGS_HAS_USERNAME) { output += url.username; } if (url.flags & URL_FLAGS_HAS_PASSWORD) { output += ":" + url.password; } output += "@"; } output += url.host; if (url.port != -1) { output += ":" + std::to_string(url.port); } } if (url.flags & URL_FLAGS_CANNOT_BE_BASE) { output += url.path[0]; } else { if (!(url.flags & URL_FLAGS_HAS_HOST) && url.path.size() > 1 && url.path[0].empty()) { output += "/."; } for (size_t i = 1; i < url.path.size(); i++) { output += "/" + url.path[i]; } } if (url.flags & URL_FLAGS_HAS_QUERY) { output += "?" + url.query; } if (!exclude && (url.flags & URL_FLAGS_HAS_FRAGMENT)) { output += "#" + url.fragment; } output.shrink_to_fit(); return output; } namespace { void SetArgs(Environment* env, Local<Value> argv[ARG_COUNT], const struct url_data& url) { Isolate* isolate = env->isolate(); argv[ARG_FLAGS] = Integer::NewFromUnsigned(isolate, url.flags); argv[ARG_PROTOCOL] = url.flags & URL_FLAGS_SPECIAL ? GetSpecial(env, url.scheme) : OneByteString(isolate, url.scheme.c_str()); if (url.flags & URL_FLAGS_HAS_USERNAME) argv[ARG_USERNAME] = Utf8String(isolate, url.username); if (url.flags & URL_FLAGS_HAS_PASSWORD) argv[ARG_PASSWORD] = Utf8String(isolate, url.password); if (url.flags & URL_FLAGS_HAS_HOST) argv[ARG_HOST] = Utf8String(isolate, url.host); if (url.flags & URL_FLAGS_HAS_QUERY) argv[ARG_QUERY] = Utf8String(isolate, url.query); if (url.flags & URL_FLAGS_HAS_FRAGMENT) argv[ARG_FRAGMENT] = Utf8String(isolate, url.fragment); if (url.port > -1) argv[ARG_PORT] = Integer::New(isolate, url.port); if (url.flags & URL_FLAGS_HAS_PATH) argv[ARG_PATH] = ToV8Value(env->context(), url.path).ToLocalChecked(); } void Parse(Environment* env, Local<Value> recv, const char* input, size_t len, enum url_parse_state state_override, Local<Value> base_obj, Local<Value> context_obj, Local<Function> cb, Local<Value> error_cb) { Isolate* isolate = env->isolate(); Local<Context> context = env->context(); HandleScope handle_scope(isolate); Context::Scope context_scope(context); const bool has_context = context_obj->IsObject(); const bool has_base = base_obj->IsObject(); url_data base; url_data url; if (has_context) url = HarvestContext(env, context_obj.As<Object>()); if (has_base) base = HarvestBase(env, base_obj.As<Object>()); URL::Parse(input, len, state_override, &url, has_context, &base, has_base); if ((url.flags & URL_FLAGS_INVALID_PARSE_STATE) || ((state_override != kUnknownState) && (url.flags & URL_FLAGS_TERMINATED))) return; // Define the return value placeholders const Local<Value> undef = Undefined(isolate); const Local<Value> null = Null(isolate); if (!(url.flags & URL_FLAGS_FAILED)) { Local<Value> argv[] = { undef, undef, undef, undef, null, // host defaults to null null, // port defaults to null undef, null, // query defaults to null null, // fragment defaults to null }; SetArgs(env, argv, url); USE(cb->Call(context, recv, arraysize(argv), argv)); } else if (error_cb->IsFunction()) { Local<Value> flags = Integer::NewFromUnsigned(isolate, url.flags); USE(error_cb.As<Function>()->Call(context, recv, 1, &flags)); } } void Parse(const FunctionCallbackInfo<Value>& args) { Environment* env = Environment::GetCurrent(args); CHECK_GE(args.Length(), 5); CHECK(args[0]->IsString()); // input CHECK(args[2]->IsUndefined() || // base context args[2]->IsNull() || args[2]->IsObject()); CHECK(args[3]->IsUndefined() || // context args[3]->IsNull() || args[3]->IsObject()); CHECK(args[4]->IsFunction()); // complete callback CHECK(args[5]->IsUndefined() || args[5]->IsFunction()); // error callback Utf8Value input(env->isolate(), args[0]); enum url_parse_state state_override = kUnknownState; if (args[1]->IsNumber()) { state_override = static_cast<enum url_parse_state>( args[1]->Uint32Value(env->context()).FromJust()); } Parse(env, args.This(), *input, input.length(), state_override, args[2], args[3], args[4].As<Function>(), args[5]); } void EncodeAuthSet(const FunctionCallbackInfo<Value>& args) { Environment* env = Environment::GetCurrent(args); CHECK_GE(args.Length(), 1); CHECK(args[0]->IsString()); Utf8Value value(env->isolate(), args[0]); std::string output; size_t len = value.length(); output.reserve(len); for (size_t n = 0; n < len; n++) { const char ch = (*value)[n]; AppendOrEscape(&output, ch, USERINFO_ENCODE_SET); } args.GetReturnValue().Set( String::NewFromUtf8(env->isolate(), output.c_str()).ToLocalChecked()); } void DomainToASCII(const FunctionCallbackInfo<Value>& args) { Environment* env = Environment::GetCurrent(args); CHECK_GE(args.Length(), 1); CHECK(args[0]->IsString()); Utf8Value value(env->isolate(), args[0]); URLHost host; // Assuming the host is used for a special scheme. host.ParseHost(*value, value.length(), true); if (host.ParsingFailed()) { args.GetReturnValue().Set(FIXED_ONE_BYTE_STRING(env->isolate(), "")); return; } std::string out = host.ToStringMove(); args.GetReturnValue().Set( String::NewFromUtf8(env->isolate(), out.c_str()).ToLocalChecked()); } void DomainToUnicode(const FunctionCallbackInfo<Value>& args) { Environment* env = Environment::GetCurrent(args); CHECK_GE(args.Length(), 1); CHECK(args[0]->IsString()); Utf8Value value(env->isolate(), args[0]); URLHost host; // Assuming the host is used for a special scheme. host.ParseHost(*value, value.length(), true, true); if (host.ParsingFailed()) { args.GetReturnValue().Set(FIXED_ONE_BYTE_STRING(env->isolate(), "")); return; } std::string out = host.ToStringMove(); args.GetReturnValue().Set( String::NewFromUtf8(env->isolate(), out.c_str()).ToLocalChecked()); } void SetURLConstructor(const FunctionCallbackInfo<Value>& args) { Environment* env = Environment::GetCurrent(args); CHECK_EQ(args.Length(), 1); CHECK(args[0]->IsFunction()); env->set_url_constructor_function(args[0].As<Function>()); } void Initialize(Local<Object> target, Local<Value> unused, Local<Context> context, void* priv) { Environment* env = Environment::GetCurrent(context); env->SetMethod(target, "parse", Parse); env->SetMethodNoSideEffect(target, "encodeAuth", EncodeAuthSet); env->SetMethodNoSideEffect(target, "domainToASCII", DomainToASCII); env->SetMethodNoSideEffect(target, "domainToUnicode", DomainToUnicode); env->SetMethod(target, "setURLConstructor", SetURLConstructor); #define XX(name, _) NODE_DEFINE_CONSTANT(target, name); FLAGS(XX) #undef XX #define XX(name) NODE_DEFINE_CONSTANT(target, name); PARSESTATES(XX) #undef XX } } // namespace void RegisterExternalReferences(ExternalReferenceRegistry* registry) { registry->Register(Parse); registry->Register(EncodeAuthSet); registry->Register(DomainToASCII); registry->Register(DomainToUnicode); registry->Register(SetURLConstructor); } std::string URL::ToFilePath() const { if (context_.scheme != "file:") { return ""; } #ifdef _WIN32 const char* slash = "\\"; auto is_slash = [] (char ch) { return ch == '/' || ch == '\\'; }; #else const char* slash = "/"; auto is_slash = [] (char ch) { return ch == '/'; }; if ((context_.flags & URL_FLAGS_HAS_HOST) && context_.host.length() > 0) { return ""; } #endif std::string decoded_path; for (const std::string& part : context_.path) { std::string decoded = PercentDecode(part.c_str(), part.length()); for (char& ch : decoded) { if (is_slash(ch)) { return ""; } } decoded_path += slash + decoded; } #ifdef _WIN32 // TODO(TimothyGu): Use "\\?\" long paths on Windows. // If hostname is set, then we have a UNC path. Pass the hostname through // ToUnicode just in case it is an IDN using punycode encoding. We do not // need to worry about percent encoding because the URL parser will have // already taken care of that for us. Note that this only causes IDNs with an // appropriate `xn--` prefix to be decoded. if ((context_.flags & URL_FLAGS_HAS_HOST) && context_.host.length() > 0) { std::string unicode_host; if (!ToUnicode(context_.host, &unicode_host)) { return ""; } return "\\\\" + unicode_host + decoded_path; } // Otherwise, it's a local path that requires a drive letter. if (decoded_path.length() < 3) { return ""; } if (decoded_path[2] != ':' || !IsASCIIAlpha(decoded_path[1])) { return ""; } // Strip out the leading '\'. return decoded_path.substr(1); #else return decoded_path; #endif } URL URL::FromFilePath(const std::string& file_path) { URL url("file://"); std::string escaped_file_path; for (size_t i = 0; i < file_path.length(); ++i) { escaped_file_path += file_path[i]; if (file_path[i] == '%') escaped_file_path += "25"; } URL::Parse(escaped_file_path.c_str(), escaped_file_path.length(), kPathStart, &url.context_, true, nullptr, false); return url; } // This function works by calling out to a JS function that creates and // returns the JS URL object. Be mindful of the JS<->Native boundary // crossing that is required. MaybeLocal<Value> URL::ToObject(Environment* env) const { Isolate* isolate = env->isolate(); Local<Context> context = env->context(); Context::Scope context_scope(context); const Local<Value> undef = Undefined(isolate); const Local<Value> null = Null(isolate); if (context_.flags & URL_FLAGS_FAILED) return Local<Value>(); Local<Value> argv[] = { undef, undef, undef, undef, null, // host defaults to null null, // port defaults to null undef, null, // query defaults to null null, // fragment defaults to null }; SetArgs(env, argv, context_); MaybeLocal<Value> ret; { TryCatchScope try_catch(env, TryCatchScope::CatchMode::kFatal); // The SetURLConstructor method must have been called already to // set the constructor function used below. SetURLConstructor is // called automatically when the internal/url.js module is loaded // during the internal/bootstrap/node.js processing. ret = env->url_constructor_function() ->Call(env->context(), undef, arraysize(argv), argv); } return ret; } } // namespace url } // namespace node NODE_MODULE_CONTEXT_AWARE_INTERNAL(url, node::url::Initialize) NODE_MODULE_EXTERNAL_REFERENCE(url, node::url::RegisterExternalReferences) 

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