diff options
| author | Bartek IwaĆczuk <biwanczuk@gmail.com> | 2023-02-14 17:38:45 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-02-14 17:38:45 +0100 |
| commit | d47147fb6ad229b1c039aff9d0959b6e281f4df5 (patch) | |
| tree | 6e9e790f2b9bc71b5f0c9c7e64b95cae31579d58 /ext/node/polyfills/internal_binding/cares_wrap.ts | |
| parent | 1d00bbe47e2ca14e2d2151518e02b2324461a065 (diff) | |
feat(ext/node): embed std/node into the snapshot (#17724)
This commit moves "deno_std/node" in "ext/node" crate. The code is
transpiled and snapshotted during the build process.
During the first pass a minimal amount of work was done to create the
snapshot, a lot of code in "ext/node" depends on presence of "Deno"
global. This code will be gradually fixed in the follow up PRs to migrate
it to import relevant APIs from "internal:" modules.
Currently the code from snapshot is not used in any way, and all
Node/npm compatibility still uses code from
"https://deno.land/std/node" (or from the location specified by
"DENO_NODE_COMPAT_URL"). This will also be handled in a follow
up PRs.
---------
Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
Diffstat (limited to 'ext/node/polyfills/internal_binding/cares_wrap.ts')
| -rw-r--r-- | ext/node/polyfills/internal_binding/cares_wrap.ts | 545 |
1 files changed, 545 insertions, 0 deletions
diff --git a/ext/node/polyfills/internal_binding/cares_wrap.ts b/ext/node/polyfills/internal_binding/cares_wrap.ts new file mode 100644 index 000000000..1345e9463 --- /dev/null +++ b/ext/node/polyfills/internal_binding/cares_wrap.ts @@ -0,0 +1,545 @@ +// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// This module ports: +// - https://github.com/nodejs/node/blob/master/src/cares_wrap.cc +// - https://github.com/nodejs/node/blob/master/src/cares_wrap.h + +import type { ErrnoException } from "internal:deno_node/polyfills/internal/errors.ts"; +import { isIPv4 } from "internal:deno_node/polyfills/internal/net.ts"; +import { codeMap } from "internal:deno_node/polyfills/internal_binding/uv.ts"; +import { + AsyncWrap, + providerType, +} from "internal:deno_node/polyfills/internal_binding/async_wrap.ts"; +// deno-lint-ignore camelcase +import { ares_strerror } from "internal:deno_node/polyfills/internal_binding/ares.ts"; +import { notImplemented } from "internal:deno_node/polyfills/_utils.ts"; +import { isWindows } from "internal:deno_node/polyfills/_util/os.ts"; + +interface LookupAddress { + address: string; + family: number; +} + +export class GetAddrInfoReqWrap extends AsyncWrap { + family!: number; + hostname!: string; + + callback!: ( + err: ErrnoException | null, + addressOrAddresses?: string | LookupAddress[] | null, + family?: number, + ) => void; + resolve!: (addressOrAddresses: LookupAddress | LookupAddress[]) => void; + reject!: (err: ErrnoException | null) => void; + oncomplete!: (err: number | null, addresses: string[]) => void; + + constructor() { + super(providerType.GETADDRINFOREQWRAP); + } +} + +export function getaddrinfo( + req: GetAddrInfoReqWrap, + hostname: string, + family: number, + _hints: number, + verbatim: boolean, +): number { + let addresses: string[] = []; + + // TODO(cmorten): use hints + // REF: https://nodejs.org/api/dns.html#dns_supported_getaddrinfo_flags + + const recordTypes: ("A" | "AAAA")[] = []; + + if (family === 0 || family === 4) { + recordTypes.push("A"); + } + if (family === 0 || family === 6) { + recordTypes.push("AAAA"); + } + + (async () => { + await Promise.allSettled( + recordTypes.map((recordType) => + Deno.resolveDns(hostname, recordType).then((records) => { + records.forEach((record) => addresses.push(record)); + }) + ), + ); + + const error = addresses.length ? 0 : codeMap.get("EAI_NODATA")!; + + // TODO(cmorten): needs work + // REF: https://github.com/nodejs/node/blob/master/src/cares_wrap.cc#L1444 + if (!verbatim) { + addresses.sort((a: string, b: string): number => { + if (isIPv4(a)) { + return -1; + } else if (isIPv4(b)) { + return 1; + } + + return 0; + }); + } + + // TODO(@bartlomieju): Forces IPv4 as a workaround for Deno not + // aligning with Node on implicit binding on Windows + // REF: https://github.com/denoland/deno/issues/10762 + if (isWindows && hostname === "localhost") { + addresses = addresses.filter((address) => isIPv4(address)); + } + + req.oncomplete(error, addresses); + })(); + + return 0; +} + +export class QueryReqWrap extends AsyncWrap { + bindingName!: string; + hostname!: string; + ttl!: boolean; + + callback!: ( + err: ErrnoException | null, + // deno-lint-ignore no-explicit-any + records?: any, + ) => void; + // deno-lint-ignore no-explicit-any + resolve!: (records: any) => void; + reject!: (err: ErrnoException | null) => void; + oncomplete!: ( + err: number, + // deno-lint-ignore no-explicit-any + records: any, + ttls?: number[], + ) => void; + + constructor() { + super(providerType.QUERYWRAP); + } +} + +export interface ChannelWrapQuery { + queryAny(req: QueryReqWrap, name: string): number; + queryA(req: QueryReqWrap, name: string): number; + queryAaaa(req: QueryReqWrap, name: string): number; + queryCaa(req: QueryReqWrap, name: string): number; + queryCname(req: QueryReqWrap, name: string): number; + queryMx(req: QueryReqWrap, name: string): number; + queryNs(req: QueryReqWrap, name: string): number; + queryTxt(req: QueryReqWrap, name: string): number; + querySrv(req: QueryReqWrap, name: string): number; + queryPtr(req: QueryReqWrap, name: string): number; + queryNaptr(req: QueryReqWrap, name: string): number; + querySoa(req: QueryReqWrap, name: string): number; + getHostByAddr(req: QueryReqWrap, name: string): number; +} + +function fqdnToHostname(fqdn: string): string { + return fqdn.replace(/\.$/, ""); +} + +function compressIPv6(address: string): string { + const formatted = address.replace(/\b(?:0+:){2,}/, ":"); + const finalAddress = formatted + .split(":") + .map((octet) => { + if (octet.match(/^\d+\.\d+\.\d+\.\d+$/)) { + // decimal + return Number(octet.replaceAll(".", "")).toString(16); + } + + return octet.replace(/\b0+/g, ""); + }) + .join(":"); + + return finalAddress; +} + +export class ChannelWrap extends AsyncWrap implements ChannelWrapQuery { + #servers: [string, number][] = []; + #timeout: number; + #tries: number; + + constructor(timeout: number, tries: number) { + super(providerType.DNSCHANNEL); + + this.#timeout = timeout; + this.#tries = tries; + } + + async #query(query: string, recordType: Deno.RecordType) { + // TODO(@bartlomieju): TTL logic. + + let code: number; + let ret: Awaited<ReturnType<typeof Deno.resolveDns>>; + + if (this.#servers.length) { + for (const [ipAddr, port] of this.#servers) { + const resolveOptions = { + nameServer: { + ipAddr, + port, + }, + }; + + ({ code, ret } = await this.#resolve( + query, + recordType, + resolveOptions, + )); + + if (code === 0 || code === codeMap.get("EAI_NODATA")!) { + break; + } + } + } else { + ({ code, ret } = await this.#resolve(query, recordType)); + } + + return { code: code!, ret: ret! }; + } + + async #resolve( + query: string, + recordType: Deno.RecordType, + resolveOptions?: Deno.ResolveDnsOptions, + ): Promise<{ + code: number; + ret: Awaited<ReturnType<typeof Deno.resolveDns>>; + }> { + let ret: Awaited<ReturnType<typeof Deno.resolveDns>> = []; + let code = 0; + + try { + ret = await Deno.resolveDns(query, recordType, resolveOptions); + } catch (e) { + if (e instanceof Deno.errors.NotFound) { + code = codeMap.get("EAI_NODATA")!; + } else { + // TODO(cmorten): map errors to appropriate error codes. + code = codeMap.get("UNKNOWN")!; + } + } + + return { code, ret }; + } + + queryAny(req: QueryReqWrap, name: string): number { + // TODO(@bartlomieju): implemented temporary measure to allow limited usage of + // `resolveAny` like APIs. + // + // Ideally we move to using the "ANY" / "*" DNS query in future + // REF: https://github.com/denoland/deno/issues/14492 + (async () => { + const records: { type: Deno.RecordType; [key: string]: unknown }[] = []; + + await Promise.allSettled([ + this.#query(name, "A").then(({ ret }) => { + ret.forEach((record) => records.push({ type: "A", address: record })); + }), + this.#query(name, "AAAA").then(({ ret }) => { + (ret as string[]).forEach((record) => + records.push({ type: "AAAA", address: compressIPv6(record) }) + ); + }), + this.#query(name, "CAA").then(({ ret }) => { + (ret as Deno.CAARecord[]).forEach(({ critical, tag, value }) => + records.push({ + type: "CAA", + [tag]: value, + critical: +critical && 128, + }) + ); + }), + this.#query(name, "CNAME").then(({ ret }) => { + ret.forEach((record) => + records.push({ type: "CNAME", value: record }) + ); + }), + this.#query(name, "MX").then(({ ret }) => { + (ret as Deno.MXRecord[]).forEach(({ preference, exchange }) => + records.push({ + type: "MX", + priority: preference, + exchange: fqdnToHostname(exchange), + }) + ); + }), + this.#query(name, "NAPTR").then(({ ret }) => { + (ret as Deno.NAPTRRecord[]).forEach( + ({ order, preference, flags, services, regexp, replacement }) => + records.push({ + type: "NAPTR", + order, + preference, + flags, + service: services, + regexp, + replacement, + }), + ); + }), + this.#query(name, "NS").then(({ ret }) => { + (ret as string[]).forEach((record) => + records.push({ type: "NS", value: fqdnToHostname(record) }) + ); + }), + this.#query(name, "PTR").then(({ ret }) => { + (ret as string[]).forEach((record) => + records.push({ type: "PTR", value: fqdnToHostname(record) }) + ); + }), + this.#query(name, "SOA").then(({ ret }) => { + (ret as Deno.SOARecord[]).forEach( + ({ mname, rname, serial, refresh, retry, expire, minimum }) => + records.push({ + type: "SOA", + nsname: fqdnToHostname(mname), + hostmaster: fqdnToHostname(rname), + serial, + refresh, + retry, + expire, + minttl: minimum, + }), + ); + }), + this.#query(name, "SRV").then(({ ret }) => { + (ret as Deno.SRVRecord[]).forEach( + ({ priority, weight, port, target }) => + records.push({ + type: "SRV", + priority, + weight, + port, + name: target, + }), + ); + }), + this.#query(name, "TXT").then(({ ret }) => { + ret.forEach((record) => + records.push({ type: "TXT", entries: record }) + ); + }), + ]); + + const err = records.length ? 0 : codeMap.get("EAI_NODATA")!; + + req.oncomplete(err, records); + })(); + + return 0; + } + + queryA(req: QueryReqWrap, name: string): number { + this.#query(name, "A").then(({ code, ret }) => { + req.oncomplete(code, ret); + }); + + return 0; + } + + queryAaaa(req: QueryReqWrap, name: string): number { + this.#query(name, "AAAA").then(({ code, ret }) => { + const records = (ret as string[]).map((record) => compressIPv6(record)); + + req.oncomplete(code, records); + }); + + return 0; + } + + queryCaa(req: QueryReqWrap, name: string): number { + this.#query(name, "CAA").then(({ code, ret }) => { + const records = (ret as Deno.CAARecord[]).map( + ({ critical, tag, value }) => ({ + [tag]: value, + critical: +critical && 128, + }), + ); + + req.oncomplete(code, records); + }); + + return 0; + } + + queryCname(req: QueryReqWrap, name: string): number { + this.#query(name, "CNAME").then(({ code, ret }) => { + req.oncomplete(code, ret); + }); + + return 0; + } + + queryMx(req: QueryReqWrap, name: string): number { + this.#query(name, "MX").then(({ code, ret }) => { + const records = (ret as Deno.MXRecord[]).map( + ({ preference, exchange }) => ({ + priority: preference, + exchange: fqdnToHostname(exchange), + }), + ); + + req.oncomplete(code, records); + }); + + return 0; + } + + queryNaptr(req: QueryReqWrap, name: string): number { + this.#query(name, "NAPTR").then(({ code, ret }) => { + const records = (ret as Deno.NAPTRRecord[]).map( + ({ order, preference, flags, services, regexp, replacement }) => ({ + flags, + service: services, + regexp, + replacement, + order, + preference, + }), + ); + + req.oncomplete(code, records); + }); + + return 0; + } + + queryNs(req: QueryReqWrap, name: string): number { + this.#query(name, "NS").then(({ code, ret }) => { + const records = (ret as string[]).map((record) => fqdnToHostname(record)); + + req.oncomplete(code, records); + }); + + return 0; + } + + queryPtr(req: QueryReqWrap, name: string): number { + this.#query(name, "PTR").then(({ code, ret }) => { + const records = (ret as string[]).map((record) => fqdnToHostname(record)); + + req.oncomplete(code, records); + }); + + return 0; + } + + querySoa(req: QueryReqWrap, name: string): number { + this.#query(name, "SOA").then(({ code, ret }) => { + let record = {}; + + if (ret.length) { + const { mname, rname, serial, refresh, retry, expire, minimum } = + ret[0] as Deno.SOARecord; + + record = { + nsname: fqdnToHostname(mname), + hostmaster: fqdnToHostname(rname), + serial, + refresh, + retry, + expire, + minttl: minimum, + }; + } + + req.oncomplete(code, record); + }); + + return 0; + } + + querySrv(req: QueryReqWrap, name: string): number { + this.#query(name, "SRV").then(({ code, ret }) => { + const records = (ret as Deno.SRVRecord[]).map( + ({ priority, weight, port, target }) => ({ + priority, + weight, + port, + name: target, + }), + ); + + req.oncomplete(code, records); + }); + + return 0; + } + + queryTxt(req: QueryReqWrap, name: string): number { + this.#query(name, "TXT").then(({ code, ret }) => { + req.oncomplete(code, ret); + }); + + return 0; + } + + getHostByAddr(_req: QueryReqWrap, _name: string): number { + // TODO(@bartlomieju): https://github.com/denoland/deno/issues/14432 + notImplemented("cares.ChannelWrap.prototype.getHostByAddr"); + } + + getServers(): [string, number][] { + return this.#servers; + } + + setServers(servers: string | [number, string, number][]): number { + if (typeof servers === "string") { + const tuples: [string, number][] = []; + + for (let i = 0; i < servers.length; i += 2) { + tuples.push([servers[i], parseInt(servers[i + 1])]); + } + + this.#servers = tuples; + } else { + this.#servers = servers.map(([_ipVersion, ip, port]) => [ip, port]); + } + + return 0; + } + + setLocalAddress(_addr0: string, _addr1?: string) { + notImplemented("cares.ChannelWrap.prototype.setLocalAddress"); + } + + cancel() { + notImplemented("cares.ChannelWrap.prototype.cancel"); + } +} + +const DNS_ESETSRVPENDING = -1000; +const EMSG_ESETSRVPENDING = "There are pending queries."; + +export function strerror(code: number) { + return code === DNS_ESETSRVPENDING + ? EMSG_ESETSRVPENDING + : ares_strerror(code); +} |
