From 69d4405f2dd492164a236c7bdb76902c8d46d7d4 Mon Sep 17 00:00:00 2001 From: Gus Caplan Date: Tue, 23 Feb 2021 11:45:18 -0600 Subject: [PATCH 01/10] wasm --- build_wasm.sh | 24 + package-lock.json | 1909 ++++++++++++++++++++++++++++++++++++++++++++- src/native/api.c | 33 + src/native/api.h | 34 + wasm.js | 112 +++ 5 files changed, 2111 insertions(+), 1 deletion(-) create mode 100755 build_wasm.sh create mode 100644 wasm.js diff --git a/build_wasm.sh b/build_wasm.sh new file mode 100755 index 00000000..9a8ec830 --- /dev/null +++ b/build_wasm.sh @@ -0,0 +1,24 @@ +#!/bin/bash + +set -ex + +$WASI_ROOT/bin/clang \ + --sysroot=$WASI_ROOT/share/wasi-sysroot \ + -target wasm32-unknown-wasi \ + -Ofast \ + -fno-exceptions \ + -fvisibility=hidden \ + -mexec-model=reactor \ + -Wl,-error-limit=0 \ + -Wl,-O3 \ + -Wl,--lto-O3 \ + -Wl,--strip-all \ + -Wl,--allow-undefined \ + -Wl,--export-dynamic \ + -Wl,--export-table \ + -Wl,--export=malloc \ + -Wl,--export=free \ + ./build/c/*.c \ + ./src/native/*.c \ + -I./build \ + -o ./build/llhttp.wasm diff --git a/package-lock.json b/package-lock.json index 312f761f..84ac94b4 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,8 +1,1915 @@ { "name": "llhttp", "version": "4.0.0", - "lockfileVersion": 1, + "lockfileVersion": 2, "requires": true, + "packages": { + "": { + "version": "4.0.0", + "license": "MIT", + "dependencies": { + "@types/semver": "^5.5.0", + "llparse": "^7.1.0", + "semver": "^5.7.1" + }, + "devDependencies": { + "@types/mocha": "^5.2.7", + "@types/node": "^10.17.52", + "llparse-dot": "^1.0.1", + "llparse-test-fixture": "^5.0.1", + "mdgator": "^1.1.2", + "mocha": "^7.2.0", + "ts-node": "^7.0.1", + "tslint": "^5.20.1", + "typescript": "^3.9.9" + } + }, + "node_modules/@babel/code-frame": { + "version": "7.12.13", + "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz", + "integrity": 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"resolved": "https://registry.npmjs.org/yn/-/yn-2.0.0.tgz", + "integrity": "sha1-5a2ryKz0CPY4X8dklWhMiOavaJo=", + "dev": true, + "engines": { + "node": ">=4" + } + } + }, "dependencies": { "@babel/code-frame": { "version": "7.12.13", diff --git a/src/native/api.c b/src/native/api.c index 0f9b5677..cc1ed045 100644 --- a/src/native/api.c +++ b/src/native/api.c @@ -24,6 +24,39 @@ void llhttp_init(llhttp_t* parser, llhttp_type_t type, } +#if defined(__wasm__) + +extern int wasm_on_url(llhttp_t* p, const char* at, size_t length); +extern int wasm_on_status(llhttp_t* p, const char* at, size_t length); +extern int wasm_on_header_field(llhttp_t* p, const char* at, size_t length); +extern int wasm_on_header_value(llhttp_t* p, const char* at, size_t length); +extern int wasm_on_body(llhttp_t* p, const char* at, size_t length); +const llhttp_settings_t wasm_settings = { + NULL, + wasm_on_url, + wasm_on_status, + wasm_on_header_field, + wasm_on_header_value, + NULL, + wasm_on_body, + NULL, + NULL, + NULL, +}; + +llhttp_t* llhttp_alloc(llhttp_type_t type) { + llhttp_t* parser = malloc(sizeof(llhttp_t)); + llhttp_init(parser, type, &wasm_settings); + return parser; +} + +void llhttp_free(llhttp_t* parser) { + free(parser); +} + +#endif // defined(__wasm__) + + void llhttp_reset(llhttp_t* parser) { llhttp_type_t type = parser->type; const llhttp_settings_t* settings = parser->settings; diff --git a/src/native/api.h b/src/native/api.h index f62c57fe..0868d254 100644 --- a/src/native/api.h +++ b/src/native/api.h @@ -5,6 +5,12 @@ extern "C" { #endif #include +#if defined(__wasm__) +#define LLHTTP_EXPORT __attribute__((visibility("default"))) +#else +#define LLHTTP_EXPORT +#endif + typedef llhttp__internal_t llhttp_t; typedef struct llhttp_settings_s llhttp_settings_t; @@ -55,15 +61,28 @@ struct llhttp_settings_s { * the `parser` here. In practice, `settings` has to be either a static * variable or be allocated with `malloc`, `new`, etc. */ +LLHTTP_EXPORT void llhttp_init(llhttp_t* parser, llhttp_type_t type, const llhttp_settings_t* settings); +#if defined(__wasm__) + +LLHTTP_EXPORT +llhttp_t* llhttp_alloc(llhttp_type_t type); + +LLHTTP_EXPORT +void llhttp_free(llhttp_t* parser); + +#endif // defined(__wasm__) + /* Reset an already initialized parser back to the start state, preserving the * existing parser type, callback settings, user data, and lenient flags. */ +LLHTTP_EXPORT void llhttp_reset(llhttp_t* parser); /* Initialize the settings object */ +LLHTTP_EXPORT void llhttp_settings_init(llhttp_settings_t* settings); /* Parse full or partial request/response, invoking user callbacks along the @@ -82,6 +101,7 @@ void llhttp_settings_init(llhttp_settings_t* settings); * to return the same error upon each successive call up until `llhttp_init()` * is called. */ +LLHTTP_EXPORT llhttp_errno_t llhttp_execute(llhttp_t* parser, const char* data, size_t len); /* This method should be called when the other side has no further bytes to @@ -92,16 +112,19 @@ llhttp_errno_t llhttp_execute(llhttp_t* parser, const char* data, size_t len); * connection. This method will invoke `on_message_complete()` callback if the * request was terminated safely. Otherwise a error code would be returned. */ +LLHTTP_EXPORT llhttp_errno_t llhttp_finish(llhttp_t* parser); /* Returns `1` if the incoming message is parsed until the last byte, and has * to be completed by calling `llhttp_finish()` on EOF */ +LLHTTP_EXPORT int llhttp_message_needs_eof(const llhttp_t* parser); /* Returns `1` if there might be any other messages following the last that was * successfully parsed. */ +LLHTTP_EXPORT int llhttp_should_keep_alive(const llhttp_t* parser); /* Make further calls of `llhttp_execute()` return `HPE_PAUSED` and set @@ -110,6 +133,7 @@ int llhttp_should_keep_alive(const llhttp_t* parser); * Important: do not call this from user callbacks! User callbacks must return * `HPE_PAUSED` if pausing is required. */ +LLHTTP_EXPORT void llhttp_pause(llhttp_t* parser); /* Might be called to resume the execution after the pause in user's callback. @@ -117,6 +141,7 @@ void llhttp_pause(llhttp_t* parser); * * Call this only if `llhttp_execute()` returns `HPE_PAUSED`. */ +LLHTTP_EXPORT void llhttp_resume(llhttp_t* parser); /* Might be called to resume the execution after the pause in user's callback. @@ -124,9 +149,11 @@ void llhttp_resume(llhttp_t* parser); * * Call this only if `llhttp_execute()` returns `HPE_PAUSED_UPGRADE` */ +LLHTTP_EXPORT void llhttp_resume_after_upgrade(llhttp_t* parser); /* Returns the latest return error */ +LLHTTP_EXPORT llhttp_errno_t llhttp_get_errno(const llhttp_t* parser); /* Returns the verbal explanation of the latest returned error. @@ -134,6 +161,7 @@ llhttp_errno_t llhttp_get_errno(const llhttp_t* parser); * Note: User callback should set error reason when returning the error. See * `llhttp_set_error_reason()` for details. */ +LLHTTP_EXPORT const char* llhttp_get_error_reason(const llhttp_t* parser); /* Assign verbal description to the returned error. Must be called in user @@ -141,6 +169,7 @@ const char* llhttp_get_error_reason(const llhttp_t* parser); * * Note: `HPE_USER` error code might be useful in user callbacks. */ +LLHTTP_EXPORT void llhttp_set_error_reason(llhttp_t* parser, const char* reason); /* Returns the pointer to the last parsed byte before the returned error. The @@ -148,12 +177,15 @@ void llhttp_set_error_reason(llhttp_t* parser, const char* reason); * * Note: this method might be useful for counting the number of parsed bytes. */ +LLHTTP_EXPORT const char* llhttp_get_error_pos(const llhttp_t* parser); /* Returns textual name of error code */ +LLHTTP_EXPORT const char* llhttp_errno_name(llhttp_errno_t err); /* Returns textual name of HTTP method */ +LLHTTP_EXPORT const char* llhttp_method_name(llhttp_method_t method); @@ -166,6 +198,7 @@ const char* llhttp_method_name(llhttp_method_t method); * * **(USE AT YOUR OWN RISK)** */ +LLHTTP_EXPORT void llhttp_set_lenient_headers(llhttp_t* parser, int enabled); @@ -179,6 +212,7 @@ void llhttp_set_lenient_headers(llhttp_t* parser, int enabled); * * **(USE AT YOUR OWN RISK)** */ +LLHTTP_EXPORT void llhttp_set_lenient_chunked_length(llhttp_t* parser, int enabled); #ifdef __cplusplus diff --git a/wasm.js b/wasm.js new file mode 100644 index 00000000..bf158267 --- /dev/null +++ b/wasm.js @@ -0,0 +1,112 @@ +'use strict'; + +/* global WebAssembly */ + +const fs = require('fs'); +const { constants } = require('.'); + +const bin = fs.readFileSync('./build/llhttp.wasm'); +const mod = new WebAssembly.Module(bin); + +const cstr = (ptr, len) => + Buffer.from(inst.exports.memory.buffer, ptr, len).toString(); + +const instMap = new Map(); + +const inst = new WebAssembly.Instance(mod, { + env: { + wasm_on_url(p, at, length) { + instMap.get(p).url = cstr(at, length); + return 0; + }, + wasm_on_status(p, at, length) { + instMap.get(p).status = cstr(at, length); + return 0; + }, + wasm_on_header_field(p, at, length) { + instMap.get(p).headerName = cstr(at, length); + return 0; + }, + wasm_on_header_value(p, at, length) { + const i = instMap.get(p); + i.headers[i.headerName] = cstr(at, length); + i.headerName = ''; + return 0; + }, + wasm_on_body(p, at, length) { + instMap.get(p).body = Buffer.from(inst.exports.memory.buffer, at, length); + return 0; + }, + }, +}); + +inst.exports._initialize(); // wasi reactor + +class Parser { + constructor(type) { + this.ptr = inst.exports.llhttp_alloc(constants.TYPE[type]); + instMap.set(this.ptr, this); + + this.url = ''; + this.status = null; + this.headerName = ''; + this.headers = {}; + this.body = null; + } + + destroy() { + instMap.delete(this.ptr); + inst.exports.llhttp_free(this.ptr); + } + + execute(data) { + // could probably use static alloc and chunk but i'm lazy + const ptr = inst.exports.malloc(data.byteLength); + const u8 = new Uint8Array(inst.exports.memory.buffer); + u8.set(data, ptr); + this.checkErr(inst.exports.llhttp_execute(this.ptr, ptr, data.length)); + inst.exports.free(ptr); + } + + checkErr(n) { + if (n === constants.ERROR.OK) { + return; + } + const ptr = inst.exports.llhttp_get_error_reason(this.ptr); + const u8 = new Uint8Array(inst.exports.memory.buffer); + const len = u8.indexOf(0, ptr) - ptr; + throw new Error(cstr(ptr, len)); + } +} + +{ + const p = new Parser('REQUEST'); + + p.execute(Buffer.from(`\ +POST /owo HTTP/1.1\r +X: Y\r +Content-Length: 9\r +\r +uh, meow?\r +`)); + + console.log(p); + + p.destroy(); +} + +{ + const p = new Parser('RESPONSE'); + + p.execute(Buffer.from(`\ +HTTP/1.1 200 OK\r +X: Y\r +Content-Length: 9\r +\r +uh, meow?\r +`)); + + console.log(p); + + p.destroy(); +} From 4021558dee1e7a59f7936898cc09c66176737aca Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Sun, 7 Mar 2021 17:02:38 +0100 Subject: [PATCH 02/10] feat: add wasm build Add wasm build using a docker container. Expose some api needed only in wasm. --- .dockerignore | 6 + Dockerfile | 22 + build_wasm.js | 73 ++ build_wasm.sh | 24 - examples/wasm.js | 222 ++++++ package-lock.json | 1915 +-------------------------------------------- package.json | 3 + src/native/api.c | 39 +- src/native/api.h | 18 + wasm.js | 112 --- 10 files changed, 386 insertions(+), 2048 deletions(-) create mode 100644 .dockerignore create mode 100644 Dockerfile create mode 100644 build_wasm.js delete mode 100755 build_wasm.sh create mode 100644 examples/wasm.js delete mode 100644 wasm.js diff --git a/.dockerignore b/.dockerignore new file mode 100644 index 00000000..67ae8f83 --- /dev/null +++ b/.dockerignore @@ -0,0 +1,6 @@ +node_modules +.github +bench +test +images +lib diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 00000000..62ff3372 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,22 @@ +FROM node:14.16.0-buster + +ARG UID=1000 +ARG GID=1000 +ARG WASI_SDK_VERSION_MAJOR=12 +ARG WASI_SDK_VERSION_MINOR=0 + +ENV WASI_ROOT=/home/node/wasi-sdk-12.0 + +RUN wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${WASI_SDK_VERSION_MAJOR}/wasi-sdk-${WASI_SDK_VERSION_MAJOR}.${WASI_SDK_VERSION_MINOR}-linux.tar.gz -P /tmp + +RUN tar xvf /tmp/wasi-sdk-${WASI_SDK_VERSION_MAJOR}.${WASI_SDK_VERSION_MINOR}-linux.tar.gz --directory /home/node + +RUN mkdir /home/node/llhttp + +WORKDIR /home/node/llhttp + +COPY . . + +RUN npm ci + +USER node diff --git a/build_wasm.js b/build_wasm.js new file mode 100644 index 00000000..e4794b1f --- /dev/null +++ b/build_wasm.js @@ -0,0 +1,73 @@ +'use strict' + +const { mkdirSync, writeFileSync } = require('fs') +const { execSync } = require('child_process') +const { join } = require('path') +const js = require('javascript-stringify') +const { WASI_ROOT } = process.env + +if (process.argv[2] === '--setup') { + try { + mkdirSync(join(__dirname, 'build')) + process.exit(0); + } catch (error) { + if (error.code !== 'EEXIST') { + throw error + } + process.exit(0); + } +} + +if (process.argv[2] === '--docker') { + let cmd = 'docker run --rm -it'; + if (process.platform === 'linux') { + cmd += ` --user ${process.getuid()}:${process.getegid()}`; + } + cmd += ` --mount type=bind,source=${__dirname}/build,target=/home/node/llhttp/build llhttp_wasm_builder node build_wasm.js`; + execSync(cmd, { stdio: 'inherit' }); + process.exit(0); +} + +if (!WASI_ROOT) { + throw new Error('Please setup the WASI_ROOT env variable.') +} + +const WASM_OUT = join(__dirname, 'build', 'wasm') + +try { + mkdirSync(WASM_OUT) +} catch (error) { + if (error.code !== 'EEXIST') { + throw error + } +} + +// Build ts +execSync('npm run build', { stdio: 'inherit' }) + +// Build wasm binary +execSync(`${WASI_ROOT}/bin/clang \ + --sysroot=${WASI_ROOT}/share/wasi-sysroot \ + -target wasm32-unknown-wasi \ + -Ofast \ + -fno-exceptions \ + -fvisibility=hidden \ + -mexec-model=reactor \ + -Wl,-error-limit=0 \ + -Wl,-O3 \ + -Wl,--lto-O3 \ + -Wl,--strip-all \ + -Wl,--allow-undefined \ + -Wl,--export-dynamic \ + -Wl,--export-table \ + -Wl,--export=malloc \ + -Wl,--export=free \ + ${join(__dirname, 'build', 'c')}/*.c \ + ${join(__dirname, 'src', 'native')}/*.c \ + -I${join(__dirname, 'build')} \ + -o ${join(WASM_OUT, 'llhttp.wasm')}`, { stdio: 'inherit' }) + +// Build `constants.js` file +const { constants } = require('.') +const data = `module.exports = ${js.stringify(constants)}` +writeFileSync(join(WASM_OUT, 'constants.js'), data, 'utf8') diff --git a/build_wasm.sh b/build_wasm.sh deleted file mode 100755 index 9a8ec830..00000000 --- a/build_wasm.sh +++ /dev/null @@ -1,24 +0,0 @@ -#!/bin/bash - -set -ex - -$WASI_ROOT/bin/clang \ - --sysroot=$WASI_ROOT/share/wasi-sysroot \ - -target wasm32-unknown-wasi \ - -Ofast \ - -fno-exceptions \ - -fvisibility=hidden \ - -mexec-model=reactor \ - -Wl,-error-limit=0 \ - -Wl,-O3 \ - -Wl,--lto-O3 \ - -Wl,--strip-all \ - -Wl,--allow-undefined \ - -Wl,--export-dynamic \ - -Wl,--export-table \ - -Wl,--export=malloc \ - -Wl,--export=free \ - ./build/c/*.c \ - ./src/native/*.c \ - -I./build \ - -o ./build/llhttp.wasm diff --git a/examples/wasm.js b/examples/wasm.js new file mode 100644 index 00000000..02b8ef4e --- /dev/null +++ b/examples/wasm.js @@ -0,0 +1,222 @@ +'use strict'; + +/* global WebAssembly */ + +const { readFileSync } = require('fs'); +const { resolve } = require('path'); +const constants = require('../build/wasm/constants.js'); +const bin = readFileSync(resolve(__dirname, '../build/wasm/llhttp.wasm')); +const mod = new WebAssembly.Module(bin); + +const REQUEST = constants.TYPE.REQUEST; +const RESPONSE = constants.TYPE.RESPONSE; +const kOnMessageBegin = 0; +const kOnHeaders = 1; +const kOnHeadersComplete = 2; +const kOnBody = 3; +const kOnMessageComplete = 4; +const kOnExecute = 5; + +const kPtr = Symbol('kPrt'); +const kUrl = Symbol('kUrl'); +const kStatusMessage = Symbol('kStatusMessage'); +const kHeadersFields = Symbol('kHeadersFields'); +const kHeadersValues = Symbol('kHeadersValues'); +const kBody = Symbol('kBody'); +const kReset = Symbol('kReset'); +const kCheckErr = Symbol('kCheckErr'); + +const cstr = (ptr, len) => + Buffer.from(inst.exports.memory.buffer, ptr, len).toString(); + +const wasm_on_message_begin = p => { + const i = instMap.get(p); + i[kReset](); + return i[kOnMessageBegin](); +}; + +const wasm_on_url = (p, at, length) => { + instMap.get(p)[kUrl] = cstr(at, length); + return 0; +}; + +const wasm_on_status = (p, at, length) => { + instMap.get(p)[kStatusMessage] = cstr(at, length); + return 0; +}; + +const wasm_on_header_field = (p, at, length) => { + const i= instMap.get(p) + i[kHeadersFields].push(cstr(at, length)); + return 0; +}; + +const wasm_on_header_value = (p, at, length) => { + const i = instMap.get(p); + i[kHeadersValues].push(cstr(at, length)); + return 0; +}; + +const wasm_on_headers_complete = p => { + const i = instMap.get(p); + const type = inst.exports.llhttp_get_type(p); + const versionMajor = inst.exports.llhttp_get_http_major(p); + const versionMinor = inst.exports.llhttp_get_http_minor(p); + const rawHeaders = []; + let method; + let url; + let statusCode; + let statusMessage; + const upgrade = inst.exports.llhttp_get_upgrade(p); + const shouldKeepAlive = inst.exports.llhttp_should_keep_alive(p); + + for (let c = 0; c < i[kHeadersFields].length; c++) { + rawHeaders.push(i[kHeadersFields][c], i[kHeadersValues][c]) + } + i[kOnHeaders](rawHeaders); + + if (type === HTTPParser.REQUEST) { + method = constants.METHODS[inst.exports.llhttp_get_method(p)]; + url = i[kUrl]; + } else if (type === HTTPParser.RESPONSE) { + statusCode = inst.exports.llhttp_get_status_code(p); + statusMessage = i[kStatusMessage]; + } + return i[kOnHeadersComplete](versionMajor, versionMinor, rawHeaders, method, +url, statusCode, statusMessage, upgrade, shouldKeepAlive); +}; + +const wasm_on_body = (p, at, length) => { + const i = instMap.get(p); + const body = Buffer.from(inst.exports.memory.buffer, at, length); + return i[kOnBody](body); +}; + +const wasm_on_message_complete = (p) => { + return instMap.get(p)[kOnMessageComplete](); +}; + +const instMap = new Map(); + +const inst = new WebAssembly.Instance(mod, { + env: { + wasm_on_message_begin, + wasm_on_url, + wasm_on_status, + wasm_on_header_field, + wasm_on_header_value, + wasm_on_headers_complete, + wasm_on_body, + wasm_on_message_complete, + }, +}); + +inst.exports._initialize(); // wasi reactor + +class HTTPParser { + constructor(type) { + this[kPtr] = inst.exports.llhttp_alloc(constants.TYPE[type]); + instMap.set(this[kPtr], this); + + this[kUrl] = ''; + this[kStatusMessage] = null; + this[kHeadersFields] = []; + this[kHeadersValues] = []; + this[kBody] = null; + } + + [kReset]() { + this[kUrl] = ''; + this[kStatusMessage] = null; + this[kHeadersFields] = []; + this[kHeadersValues] = []; + this[kBody] = null; + } + + [kOnMessageBegin]() { + return 0; + } + + [kOnHeaders](rawHeaders) {} + + [kOnHeadersComplete](versionMajor, versionMinor, rawHeaders, method, + url, statusCode, statusMessage, upgrade, shouldKeepAlive) { + return 0; + } + + [kOnBody](body) { + this[kBody] = body; + return 0; + } + + [kOnMessageComplete]() { + return 0; + } + + destroy() { + instMap.delete(this[kPtr]); + inst.exports.llhttp_free(this[kPtr]); + } + + execute(data) { + // TODO(devsnek): could probably use static alloc and chunk but i'm lazy + const ptr = inst.exports.malloc(data.byteLength); + const u8 = new Uint8Array(inst.exports.memory.buffer); + u8.set(data, ptr); + const ret = inst.exports.llhttp_execute(this[kPtr], ptr, data.length); + inst.exports.free(ptr); + this[kCheckErr](ret); + return ret; + } + + [kCheckErr](n) { + if (n === constants.ERROR.OK) { + return; + } + const ptr = inst.exports.llhttp_get_error_reason(this[kPtr]); + const u8 = new Uint8Array(inst.exports.memory.buffer); + const len = u8.indexOf(0, ptr) - ptr; + throw new Error(cstr(ptr, len)); + } +} + +HTTPParser.REQUEST = REQUEST; +HTTPParser.RESPONSE = RESPONSE; +HTTPParser.kOnMessageBegin = kOnMessageBegin; +HTTPParser.kOnHeaders = kOnHeaders; +HTTPParser.kOnHeadersComplete = kOnHeadersComplete; +HTTPParser.kOnBody = kOnBody; +HTTPParser.kOnMessageComplete = kOnMessageComplete; +HTTPParser.kOnExecute = kOnExecute; + +{ + const p = new HTTPParser(HTTPParser.REQUEST); + + p.execute(Buffer.from(`\ +POST /owo HTTP/1.1\r +X: Y\r +Content-Length: 9\r +\r +uh, meow?\r +`)); + + console.log(p); + + p.destroy(); +} + +{ + const p = new HTTPParser(HTTPParser.RESPONSE); + + p.execute(Buffer.from(`\ +HTTP/1.1 200 OK\r +X: Y\r +Content-Length: 9\r +\r +uh, meow?\r +`)); + + console.log(p); + + p.destroy(); +} diff --git a/package-lock.json b/package-lock.json index 84ac94b4..6a48a868 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,1915 +1,8 @@ { "name": "llhttp", "version": "4.0.0", - "lockfileVersion": 2, + "lockfileVersion": 1, "requires": true, - "packages": { - "": { - "version": "4.0.0", - "license": "MIT", - "dependencies": { 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"integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=", "dev": true }, + "javascript-stringify": { + "version": "2.0.1", + "resolved": "https://registry.npmjs.org/javascript-stringify/-/javascript-stringify-2.0.1.tgz", + "integrity": "sha512-yV+gqbd5vaOYjqlbk16EG89xB5udgjqQF3C5FAORDg4f/IS1Yc5ERCv5e/57yBcfJYw05V5JyIXabhwb75Xxow==", + "dev": true + }, "js-tokens": { "version": "4.0.0", "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz", diff --git a/package.json b/package.json index bde42077..897cd590 100644 --- a/package.json +++ b/package.json @@ -12,6 +12,8 @@ "bench": "ts-node bench/", "build": "ts-node bin/generate.ts", "build-ts": "tsc", + "prebuild-wasm": "docker build -t llhttp_wasm_builder . && node build_wasm.js --setup", + "build-wasm": "node build_wasm.js --docker", "clean": "rm -rf lib && rm -rf test/tmp", "prepare": "npm run clean && npm run build-ts", "lint": "tslint -c tslint.json bin/*.ts src/*.ts src/**/*.ts test/*.ts test/**/*.ts", @@ -38,6 +40,7 @@ "devDependencies": { "@types/mocha": "^5.2.7", "@types/node": "^10.17.52", + "javascript-stringify": "^2.0.1", "llparse-dot": "^1.0.1", "llparse-test-fixture": "^5.0.1", "mdgator": "^1.1.2", diff --git a/src/native/api.c b/src/native/api.c index cc1ed045..8e81586e 100644 --- a/src/native/api.c +++ b/src/native/api.c @@ -26,24 +26,29 @@ void llhttp_init(llhttp_t* parser, llhttp_type_t type, #if defined(__wasm__) +extern int wasm_on_message_begin(llhttp_t * p); extern int wasm_on_url(llhttp_t* p, const char* at, size_t length); extern int wasm_on_status(llhttp_t* p, const char* at, size_t length); extern int wasm_on_header_field(llhttp_t* p, const char* at, size_t length); extern int wasm_on_header_value(llhttp_t* p, const char* at, size_t length); +extern int wasm_on_headers_complete(llhttp_t * p); extern int wasm_on_body(llhttp_t* p, const char* at, size_t length); +extern int wasm_on_message_complete(llhttp_t * p); + const llhttp_settings_t wasm_settings = { - NULL, + wasm_on_message_begin, wasm_on_url, wasm_on_status, wasm_on_header_field, wasm_on_header_value, - NULL, + wasm_on_headers_complete, wasm_on_body, - NULL, + wasm_on_message_complete, NULL, NULL, }; + llhttp_t* llhttp_alloc(llhttp_type_t type) { llhttp_t* parser = malloc(sizeof(llhttp_t)); llhttp_init(parser, type, &wasm_settings); @@ -54,6 +59,32 @@ void llhttp_free(llhttp_t* parser) { free(parser); } +/* Some getters required to get stuff from the parser */ + +uint8_t llhttp_get_type(llhttp_t* parser) { + return parser->type; +} + +uint8_t llhttp_get_http_major(llhttp_t* parser) { + return parser->http_major; +} + +uint8_t llhttp_get_http_minor(llhttp_t* parser) { + return parser->http_minor; +} + +uint8_t llhttp_get_method(llhttp_t* parser) { + return parser->method; +} + +int llhttp_get_status_code(llhttp_t* parser) { + return parser->status_code; +} + +uint8_t llhttp_get_upgrade(llhttp_t* parser) { + return parser->upgrade; +} + #endif // defined(__wasm__) @@ -293,7 +324,7 @@ int llhttp__on_chunk_complete(llhttp_t* s, const char* p, const char* endp) { } -/* Private */ +/* Private https://github.com/dnlup/llhttp/blob/undici_wasm/wasm.js*/ void llhttp__debug(llhttp_t* s, const char* p, const char* endp, diff --git a/src/native/api.h b/src/native/api.h index 0868d254..e32a86b9 100644 --- a/src/native/api.h +++ b/src/native/api.h @@ -73,6 +73,24 @@ llhttp_t* llhttp_alloc(llhttp_type_t type); LLHTTP_EXPORT void llhttp_free(llhttp_t* parser); +LLHTTP_EXPORT +uint8_t llhttp_get_type(llhttp_t* parser); + +LLHTTP_EXPORT +uint8_t llhttp_get_http_major(llhttp_t* parser); + +LLHTTP_EXPORT +uint8_t llhttp_get_http_minor(llhttp_t* parser); + +LLHTTP_EXPORT +uint8_t llhttp_get_method(llhttp_t* parser); + +LLHTTP_EXPORT +int llhttp_get_status_code(llhttp_t* parser); + +LLHTTP_EXPORT +uint8_t llhttp_get_upgrade(llhttp_t* parser); + #endif // defined(__wasm__) /* Reset an already initialized parser back to the start state, preserving the diff --git a/wasm.js b/wasm.js deleted file mode 100644 index bf158267..00000000 --- a/wasm.js +++ /dev/null @@ -1,112 +0,0 @@ -'use strict'; - -/* global WebAssembly */ - -const fs = require('fs'); -const { constants } = require('.'); - -const bin = fs.readFileSync('./build/llhttp.wasm'); -const mod = new WebAssembly.Module(bin); - -const cstr = (ptr, len) => - Buffer.from(inst.exports.memory.buffer, ptr, len).toString(); - -const instMap = new Map(); - -const inst = new WebAssembly.Instance(mod, { - env: { - wasm_on_url(p, at, length) { - instMap.get(p).url = cstr(at, length); - return 0; - }, - wasm_on_status(p, at, length) { - instMap.get(p).status = cstr(at, length); - return 0; - }, - wasm_on_header_field(p, at, length) { - instMap.get(p).headerName = cstr(at, length); - return 0; - }, - wasm_on_header_value(p, at, length) { - const i = instMap.get(p); - i.headers[i.headerName] = cstr(at, length); - i.headerName = ''; - return 0; - }, - wasm_on_body(p, at, length) { - instMap.get(p).body = Buffer.from(inst.exports.memory.buffer, at, length); - return 0; - }, - }, -}); - -inst.exports._initialize(); // wasi reactor - -class Parser { - constructor(type) { - this.ptr = inst.exports.llhttp_alloc(constants.TYPE[type]); - instMap.set(this.ptr, this); - - this.url = ''; - this.status = null; - this.headerName = ''; - this.headers = {}; - this.body = null; - } - - destroy() { - instMap.delete(this.ptr); - inst.exports.llhttp_free(this.ptr); - } - - execute(data) { - // could probably use static alloc and chunk but i'm lazy - const ptr = inst.exports.malloc(data.byteLength); - const u8 = new Uint8Array(inst.exports.memory.buffer); - u8.set(data, ptr); - this.checkErr(inst.exports.llhttp_execute(this.ptr, ptr, data.length)); - inst.exports.free(ptr); - } - - checkErr(n) { - if (n === constants.ERROR.OK) { - return; - } - const ptr = inst.exports.llhttp_get_error_reason(this.ptr); - const u8 = new Uint8Array(inst.exports.memory.buffer); - const len = u8.indexOf(0, ptr) - ptr; - throw new Error(cstr(ptr, len)); - } -} - -{ - const p = new Parser('REQUEST'); - - p.execute(Buffer.from(`\ -POST /owo HTTP/1.1\r -X: Y\r -Content-Length: 9\r -\r -uh, meow?\r -`)); - - console.log(p); - - p.destroy(); -} - -{ - const p = new Parser('RESPONSE'); - - p.execute(Buffer.from(`\ -HTTP/1.1 200 OK\r -X: Y\r -Content-Length: 9\r -\r -uh, meow?\r -`)); - - console.log(p); - - p.destroy(); -} From a16190e9c63b80f4a708c70780dfd4a79d8f39fc Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Mon, 29 Mar 2021 17:26:55 +0300 Subject: [PATCH 03/10] doc: fix examples typo Co-authored-by: Fedor Indutny --- examples/wasm.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/examples/wasm.js b/examples/wasm.js index 02b8ef4e..3efdb4f0 100644 --- a/examples/wasm.js +++ b/examples/wasm.js @@ -17,7 +17,7 @@ const kOnBody = 3; const kOnMessageComplete = 4; const kOnExecute = 5; -const kPtr = Symbol('kPrt'); +const kPtr = Symbol('kPtr'); const kUrl = Symbol('kUrl'); const kStatusMessage = Symbol('kStatusMessage'); const kHeadersFields = Symbol('kHeadersFields'); From d215177b7ad0dcc8ef0c9f592b9996395e97af34 Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Mon, 29 Mar 2021 17:28:05 +0300 Subject: [PATCH 04/10] doc: refactor examples Co-authored-by: Fedor Indutny --- examples/wasm.js | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/examples/wasm.js b/examples/wasm.js index 3efdb4f0..36a7661d 100644 --- a/examples/wasm.js +++ b/examples/wasm.js @@ -192,13 +192,14 @@ HTTPParser.kOnExecute = kOnExecute; { const p = new HTTPParser(HTTPParser.REQUEST); - p.execute(Buffer.from(`\ -POST /owo HTTP/1.1\r -X: Y\r -Content-Length: 9\r -\r -uh, meow?\r -`)); + p.execute(Buffer.from([ + 'POST /owo HTTP/1.1', + 'X: Y', + 'Content-Length: 9', + '', + 'uh, meow?', + '', + ].join('\r\n'))); console.log(p); From 319fdcace90cf0fda7fce3992c5b2a640078058b Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Mon, 29 Mar 2021 16:30:43 +0200 Subject: [PATCH 05/10] src: remove useless changes --- src/native/api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/native/api.c b/src/native/api.c index 8e81586e..2357e4c0 100644 --- a/src/native/api.c +++ b/src/native/api.c @@ -324,7 +324,7 @@ int llhttp__on_chunk_complete(llhttp_t* s, const char* p, const char* endp) { } -/* Private https://github.com/dnlup/llhttp/blob/undici_wasm/wasm.js*/ +/* Private */ void llhttp__debug(llhttp_t* s, const char* p, const char* endp, From 5b549b170c45846e4bece78b1de27b0630fa778a Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Mon, 29 Mar 2021 16:57:10 +0200 Subject: [PATCH 06/10] build: refactor wasm build script to bin/*.ts --- build_wasm.js => bin/build_wasm.ts | 36 +++++++++++++++++------------- package.json | 4 ++-- 2 files changed, 22 insertions(+), 18 deletions(-) rename build_wasm.js => bin/build_wasm.ts (53%) diff --git a/build_wasm.js b/bin/build_wasm.ts similarity index 53% rename from build_wasm.js rename to bin/build_wasm.ts index e4794b1f..c50b999f 100644 --- a/build_wasm.js +++ b/bin/build_wasm.ts @@ -1,14 +1,16 @@ -'use strict' +import { mkdirSync, writeFileSync } from 'fs' +import { execSync } from 'child_process' +import { join, resolve } from 'path' +import { stringify } from 'javascript-stringify' +import { constants } from '..' -const { mkdirSync, writeFileSync } = require('fs') -const { execSync } = require('child_process') -const { join } = require('path') -const js = require('javascript-stringify') const { WASI_ROOT } = process.env +const WASM_OUT = resolve(__dirname, '../build/wasm') +const WASM_SRC = resolve(__dirname, '../') if (process.argv[2] === '--setup') { try { - mkdirSync(join(__dirname, 'build')) + mkdirSync(join(WASM_SRC, 'build')) process.exit(0); } catch (error) { if (error.code !== 'EEXIST') { @@ -19,12 +21,16 @@ if (process.argv[2] === '--setup') { } if (process.argv[2] === '--docker') { - let cmd = 'docker run --rm -it'; + let cmd = 'docker run --rm -it'; + // Try to avoid root permission problems on compiled assets + // when running on linux. + // It will work flawessly if uid === gid === 1000 + // there will be some warnings otherwise. if (process.platform === 'linux') { cmd += ` --user ${process.getuid()}:${process.getegid()}`; } - cmd += ` --mount type=bind,source=${__dirname}/build,target=/home/node/llhttp/build llhttp_wasm_builder node build_wasm.js`; - execSync(cmd, { stdio: 'inherit' }); + cmd += ` --mount type=bind,source=${WASM_SRC}/build,target=/home/node/llhttp/build llhttp_wasm_builder node build_wasm.js`; + execSync(cmd, { cwd: WASM_SRC, stdio: 'inherit' }); process.exit(0); } @@ -32,7 +38,6 @@ if (!WASI_ROOT) { throw new Error('Please setup the WASI_ROOT env variable.') } -const WASM_OUT = join(__dirname, 'build', 'wasm') try { mkdirSync(WASM_OUT) @@ -43,7 +48,7 @@ try { } // Build ts -execSync('npm run build', { stdio: 'inherit' }) +execSync('npm run build', { cwd: WASM_SRC, stdio: 'inherit' }) // Build wasm binary execSync(`${WASI_ROOT}/bin/clang \ @@ -62,12 +67,11 @@ execSync(`${WASI_ROOT}/bin/clang \ -Wl,--export-table \ -Wl,--export=malloc \ -Wl,--export=free \ - ${join(__dirname, 'build', 'c')}/*.c \ - ${join(__dirname, 'src', 'native')}/*.c \ - -I${join(__dirname, 'build')} \ + ${join(WASM_SRC, 'build', 'c')}/*.c \ + ${join(WASM_SRC, 'src', 'native')}/*.c \ + -I${join(WASM_SRC, 'build')} \ -o ${join(WASM_OUT, 'llhttp.wasm')}`, { stdio: 'inherit' }) // Build `constants.js` file -const { constants } = require('.') -const data = `module.exports = ${js.stringify(constants)}` +const data = `module.exports = ${stringify(constants)}` writeFileSync(join(WASM_OUT, 'constants.js'), data, 'utf8') diff --git a/package.json b/package.json index 897cd590..fd4004e5 100644 --- a/package.json +++ b/package.json @@ -12,8 +12,8 @@ "bench": "ts-node bench/", "build": "ts-node bin/generate.ts", "build-ts": "tsc", - "prebuild-wasm": "docker build -t llhttp_wasm_builder . && node build_wasm.js --setup", - "build-wasm": "node build_wasm.js --docker", + "prebuild-wasm": "docker build -t llhttp_wasm_builder . && ts-node bin/build_wasm.ts --setup", + "build-wasm": "ts-node bin/build_wasm.ts --docker", "clean": "rm -rf lib && rm -rf test/tmp", "prepare": "npm run clean && npm run build-ts", "lint": "tslint -c tslint.json bin/*.ts src/*.ts src/**/*.ts test/*.ts test/**/*.ts", From ed0d43afbd3a453b4cc6e01ca5ba79ec69d838af Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Mon, 29 Mar 2021 18:35:22 +0200 Subject: [PATCH 07/10] examples: re-write in .ts --- bin/build_wasm.ts | 35 ++++--- examples/wasm.js | 223 ----------------------------------------- examples/wasm.ts | 249 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 266 insertions(+), 241 deletions(-) delete mode 100644 examples/wasm.js create mode 100644 examples/wasm.ts diff --git a/bin/build_wasm.ts b/bin/build_wasm.ts index c50b999f..bad81637 100644 --- a/bin/build_wasm.ts +++ b/bin/build_wasm.ts @@ -1,20 +1,20 @@ -import { mkdirSync, writeFileSync } from 'fs' -import { execSync } from 'child_process' -import { join, resolve } from 'path' -import { stringify } from 'javascript-stringify' -import { constants } from '..' +import { execSync } from 'child_process'; +import { mkdirSync, writeFileSync } from 'fs'; +import { stringify } from 'javascript-stringify'; +import { join, resolve } from 'path'; +import { constants } from '..'; -const { WASI_ROOT } = process.env -const WASM_OUT = resolve(__dirname, '../build/wasm') -const WASM_SRC = resolve(__dirname, '../') +const { WASI_ROOT } = process.env; +const WASM_OUT = resolve(__dirname, '../build/wasm'); +const WASM_SRC = resolve(__dirname, '../'); if (process.argv[2] === '--setup') { try { - mkdirSync(join(WASM_SRC, 'build')) + mkdirSync(join(WASM_SRC, 'build')); process.exit(0); } catch (error) { if (error.code !== 'EEXIST') { - throw error + throw error; } process.exit(0); } @@ -35,20 +35,19 @@ if (process.argv[2] === '--docker') { } if (!WASI_ROOT) { - throw new Error('Please setup the WASI_ROOT env variable.') + throw new Error('Please setup the WASI_ROOT env variable.'); } - try { - mkdirSync(WASM_OUT) + mkdirSync(WASM_OUT); } catch (error) { if (error.code !== 'EEXIST') { - throw error + throw error; } } // Build ts -execSync('npm run build', { cwd: WASM_SRC, stdio: 'inherit' }) +execSync('npm run build', { cwd: WASM_SRC, stdio: 'inherit' }); // Build wasm binary execSync(`${WASI_ROOT}/bin/clang \ @@ -70,8 +69,8 @@ execSync(`${WASI_ROOT}/bin/clang \ ${join(WASM_SRC, 'build', 'c')}/*.c \ ${join(WASM_SRC, 'src', 'native')}/*.c \ -I${join(WASM_SRC, 'build')} \ - -o ${join(WASM_OUT, 'llhttp.wasm')}`, { stdio: 'inherit' }) + -o ${join(WASM_OUT, 'llhttp.wasm')}`, { stdio: 'inherit' }); // Build `constants.js` file -const data = `module.exports = ${stringify(constants)}` -writeFileSync(join(WASM_OUT, 'constants.js'), data, 'utf8') +const data = `module.exports = ${stringify(constants)}`; +writeFileSync(join(WASM_OUT, 'constants.js'), data, 'utf8'); diff --git a/examples/wasm.js b/examples/wasm.js deleted file mode 100644 index 36a7661d..00000000 --- a/examples/wasm.js +++ /dev/null @@ -1,223 +0,0 @@ -'use strict'; - -/* global WebAssembly */ - -const { readFileSync } = require('fs'); -const { resolve } = require('path'); -const constants = require('../build/wasm/constants.js'); -const bin = readFileSync(resolve(__dirname, '../build/wasm/llhttp.wasm')); -const mod = new WebAssembly.Module(bin); - -const REQUEST = constants.TYPE.REQUEST; -const RESPONSE = constants.TYPE.RESPONSE; -const kOnMessageBegin = 0; -const kOnHeaders = 1; -const kOnHeadersComplete = 2; -const kOnBody = 3; -const kOnMessageComplete = 4; -const kOnExecute = 5; - -const kPtr = Symbol('kPtr'); -const kUrl = Symbol('kUrl'); -const kStatusMessage = Symbol('kStatusMessage'); -const kHeadersFields = Symbol('kHeadersFields'); -const kHeadersValues = Symbol('kHeadersValues'); -const kBody = Symbol('kBody'); -const kReset = Symbol('kReset'); -const kCheckErr = Symbol('kCheckErr'); - -const cstr = (ptr, len) => - Buffer.from(inst.exports.memory.buffer, ptr, len).toString(); - -const wasm_on_message_begin = p => { - const i = instMap.get(p); - i[kReset](); - return i[kOnMessageBegin](); -}; - -const wasm_on_url = (p, at, length) => { - instMap.get(p)[kUrl] = cstr(at, length); - return 0; -}; - -const wasm_on_status = (p, at, length) => { - instMap.get(p)[kStatusMessage] = cstr(at, length); - return 0; -}; - -const wasm_on_header_field = (p, at, length) => { - const i= instMap.get(p) - i[kHeadersFields].push(cstr(at, length)); - return 0; -}; - -const wasm_on_header_value = (p, at, length) => { - const i = instMap.get(p); - i[kHeadersValues].push(cstr(at, length)); - return 0; -}; - -const wasm_on_headers_complete = p => { - const i = instMap.get(p); - const type = inst.exports.llhttp_get_type(p); - const versionMajor = inst.exports.llhttp_get_http_major(p); - const versionMinor = inst.exports.llhttp_get_http_minor(p); - const rawHeaders = []; - let method; - let url; - let statusCode; - let statusMessage; - const upgrade = inst.exports.llhttp_get_upgrade(p); - const shouldKeepAlive = inst.exports.llhttp_should_keep_alive(p); - - for (let c = 0; c < i[kHeadersFields].length; c++) { - rawHeaders.push(i[kHeadersFields][c], i[kHeadersValues][c]) - } - i[kOnHeaders](rawHeaders); - - if (type === HTTPParser.REQUEST) { - method = constants.METHODS[inst.exports.llhttp_get_method(p)]; - url = i[kUrl]; - } else if (type === HTTPParser.RESPONSE) { - statusCode = inst.exports.llhttp_get_status_code(p); - statusMessage = i[kStatusMessage]; - } - return i[kOnHeadersComplete](versionMajor, versionMinor, rawHeaders, method, -url, statusCode, statusMessage, upgrade, shouldKeepAlive); -}; - -const wasm_on_body = (p, at, length) => { - const i = instMap.get(p); - const body = Buffer.from(inst.exports.memory.buffer, at, length); - return i[kOnBody](body); -}; - -const wasm_on_message_complete = (p) => { - return instMap.get(p)[kOnMessageComplete](); -}; - -const instMap = new Map(); - -const inst = new WebAssembly.Instance(mod, { - env: { - wasm_on_message_begin, - wasm_on_url, - wasm_on_status, - wasm_on_header_field, - wasm_on_header_value, - wasm_on_headers_complete, - wasm_on_body, - wasm_on_message_complete, - }, -}); - -inst.exports._initialize(); // wasi reactor - -class HTTPParser { - constructor(type) { - this[kPtr] = inst.exports.llhttp_alloc(constants.TYPE[type]); - instMap.set(this[kPtr], this); - - this[kUrl] = ''; - this[kStatusMessage] = null; - this[kHeadersFields] = []; - this[kHeadersValues] = []; - this[kBody] = null; - } - - [kReset]() { - this[kUrl] = ''; - this[kStatusMessage] = null; - this[kHeadersFields] = []; - this[kHeadersValues] = []; - this[kBody] = null; - } - - [kOnMessageBegin]() { - return 0; - } - - [kOnHeaders](rawHeaders) {} - - [kOnHeadersComplete](versionMajor, versionMinor, rawHeaders, method, - url, statusCode, statusMessage, upgrade, shouldKeepAlive) { - return 0; - } - - [kOnBody](body) { - this[kBody] = body; - return 0; - } - - [kOnMessageComplete]() { - return 0; - } - - destroy() { - instMap.delete(this[kPtr]); - inst.exports.llhttp_free(this[kPtr]); - } - - execute(data) { - // TODO(devsnek): could probably use static alloc and chunk but i'm lazy - const ptr = inst.exports.malloc(data.byteLength); - const u8 = new Uint8Array(inst.exports.memory.buffer); - u8.set(data, ptr); - const ret = inst.exports.llhttp_execute(this[kPtr], ptr, data.length); - inst.exports.free(ptr); - this[kCheckErr](ret); - return ret; - } - - [kCheckErr](n) { - if (n === constants.ERROR.OK) { - return; - } - const ptr = inst.exports.llhttp_get_error_reason(this[kPtr]); - const u8 = new Uint8Array(inst.exports.memory.buffer); - const len = u8.indexOf(0, ptr) - ptr; - throw new Error(cstr(ptr, len)); - } -} - -HTTPParser.REQUEST = REQUEST; -HTTPParser.RESPONSE = RESPONSE; -HTTPParser.kOnMessageBegin = kOnMessageBegin; -HTTPParser.kOnHeaders = kOnHeaders; -HTTPParser.kOnHeadersComplete = kOnHeadersComplete; -HTTPParser.kOnBody = kOnBody; -HTTPParser.kOnMessageComplete = kOnMessageComplete; -HTTPParser.kOnExecute = kOnExecute; - -{ - const p = new HTTPParser(HTTPParser.REQUEST); - - p.execute(Buffer.from([ - 'POST /owo HTTP/1.1', - 'X: Y', - 'Content-Length: 9', - '', - 'uh, meow?', - '', - ].join('\r\n'))); - - console.log(p); - - p.destroy(); -} - -{ - const p = new HTTPParser(HTTPParser.RESPONSE); - - p.execute(Buffer.from(`\ -HTTP/1.1 200 OK\r -X: Y\r -Content-Length: 9\r -\r -uh, meow?\r -`)); - - console.log(p); - - p.destroy(); -} diff --git a/examples/wasm.ts b/examples/wasm.ts new file mode 100644 index 00000000..3b900549 --- /dev/null +++ b/examples/wasm.ts @@ -0,0 +1,249 @@ +/** + * A minimal Parser that mimicks a small fraction of the Node.js parser + * API. + * To run: + * - `npm run build` + * - `npx ts-node examples/wasm.ts` + */ +import { readFileSync } from 'fs'; +import { resolve } from 'path'; +import constants from '../build/wasm/constants.js'; + +const bin = readFileSync(resolve(__dirname, '../build/wasm/llhttp.wasm')); +const mod = new WebAssembly.Module(bin); + +const REQUEST = constants.TYPE.REQUEST; +const RESPONSE = constants.TYPE.RESPONSE; +const kOnMessageBegin = 0; +const kOnHeaders = 1; +const kOnHeadersComplete = 2; +const kOnBody = 3; +const kOnMessageComplete = 4; +const kOnExecute = 5; + +const kPtr = Symbol('kPtr'); +const kUrl = Symbol('kUrl'); +const kStatusMessage = Symbol('kStatusMessage'); +const kHeadersFields = Symbol('kHeadersFields'); +const kHeadersValues = Symbol('kHeadersValues'); +const kBody = Symbol('kBody'); +const kReset = Symbol('kReset'); +const kCheckErr = Symbol('kCheckErr'); + + +const cstr = (ptr: number, len: number): string => + Buffer.from(memory.buffer, ptr, len).toString(); + +const wasm_on_message_begin = (p: number) => { + const i = instMap.get(p); + i[kReset](); + return i[kOnMessageBegin](); +}; + +const wasm_on_url = (p: number, at: number, length: number) => { + instMap.get(p)[kUrl] = cstr(at, length); + return 0; +}; + +const wasm_on_status = (p: number, at: number, length: number) => { + instMap.get(p)[kStatusMessage] = cstr(at, length); + return 0; +}; + +const wasm_on_header_field = (p: number, at: number, length: number) => { + const i= instMap.get(p) + i[kHeadersFields].push(cstr(at, length)); + return 0; +}; + +const wasm_on_header_value = (p: number, at: number, length: number) => { + const i = instMap.get(p); + i[kHeadersValues].push(cstr(at, length)); + return 0; +}; + +const wasm_on_headers_complete = (p: number) => { + const i = instMap.get(p); + const type = get_type(p); + const versionMajor = get_version_major(p); + const versionMinor = get_version_minor(p); + const rawHeaders = []; + let method; + let url; + let statusCode; + let statusMessage; + const upgrade = get_upgrade(p); + const shouldKeepAlive = should_keep_alive(p); + + for (let c = 0; c < i[kHeadersFields].length; c++) { + rawHeaders.push(i[kHeadersFields][c], i[kHeadersValues][c]) + } + + if (type === HTTPParser.REQUEST) { + method = constants.METHODS[get_method(p)]; + url = i[kUrl]; + } else if (type === HTTPParser.RESPONSE) { + statusCode = get_status_code(p); + statusMessage = i[kStatusMessage]; + } + return i[kOnHeadersComplete](versionMajor, versionMinor, rawHeaders, method, +url, statusCode, statusMessage, upgrade, shouldKeepAlive); +}; + +const wasm_on_body = (p: number, at: number, length: number) => { + const i = instMap.get(p); + const body = Buffer.from(memory.buffer, at, length); + return i[kOnBody](body); +}; + +const wasm_on_message_complete = (p: number) => { + return instMap.get(p)[kOnMessageComplete](); +}; + +const instMap = new Map(); + +const inst = new WebAssembly.Instance(mod, { + env: { + wasm_on_message_begin, + wasm_on_url, + wasm_on_status, + wasm_on_header_field, + wasm_on_header_value, + wasm_on_headers_complete, + wasm_on_body, + wasm_on_message_complete, + }, +}); + +const memory = inst.exports.memory as any; +const alloc = inst.exports.llhttp_alloc as CallableFunction; +const malloc = inst.exports.malloc as CallableFunction; +const execute = inst.exports.llhttp_execute as CallableFunction; +const get_type = inst.exports.get_type as CallableFunction; +const get_upgrade = inst.exports.llhttp_get_upgrade as CallableFunction; +const should_keep_alive = inst.exports.llhttp_should_keep_alive as CallableFunction; +const get_method = inst.exports.llhttp_get_method as CallableFunction; +const get_status_code = inst.exports.llhttp_get_status_code as CallableFunction; +const get_version_minor = inst.exports.llhttp_get_http_minor as CallableFunction; +const get_version_major = inst.exports.llhttp_get_http_major as CallableFunction; +const get_error_reason = inst.exports.llhttp_get_error_reason as CallableFunction; +const free = inst.exports.free as CallableFunction; +const initialize = inst.exports._initialize as CallableFunction; + +initialize(); // wasi reactor + +class HTTPParser { + static REQUEST = REQUEST; + static RESPONSE = RESPONSE; + static kOnMessageBegin = kOnMessageBegin; + static kOnHeaders = kOnHeaders; + static kOnHeadersComplete = kOnHeadersComplete; + static kOnBody = kOnBody; + static kOnMessageComplete = kOnMessageComplete; + static kOnExecute = kOnExecute; + + [kPtr]: number; + [kUrl]: string; + [kStatusMessage]: null|string; + [kHeadersFields]: []|[string]; + [kHeadersValues]: []|[string]; + [kBody]: null|Buffer; + + constructor(type: string|number) { + this[kPtr] = alloc(constants.TYPE[type]); + instMap.set(this[kPtr], this); + + this[kUrl] = ''; + this[kStatusMessage] = null; + this[kHeadersFields] = []; + this[kHeadersValues] = []; + this[kBody] = null; + } + + [kReset]() { + this[kUrl] = ''; + this[kStatusMessage] = null; + this[kHeadersFields] = []; + this[kHeadersValues] = []; + this[kBody] = null; + } + + [kOnMessageBegin]() { + return 0; + } + + [kOnHeaders](rawHeaders: [string]) {} + + [kOnHeadersComplete](versionMajor: number, versionMinor: number, rawHeaders: [string], method: string, + url: string, statusCode: number, statusMessage: string, upgrade: boolean, shouldKeepAlive: boolean) { + return 0; + } + + [kOnBody](body: Buffer) { + this[kBody] = body; + return 0; + } + + [kOnMessageComplete]() { + return 0; + } + + destroy() { + instMap.delete(this[kPtr]); + free(this[kPtr]); + } + + execute(data: Buffer) { + const ptr = malloc(data.byteLength); + const u8 = new Uint8Array(memory.buffer); + u8.set(data, ptr); + const ret = execute(this[kPtr], ptr, data.length); + free(ptr); + this[kCheckErr](ret); + return ret; + } + + [kCheckErr](n: number) { + if (n === constants.ERROR.OK) { + return; + } + const ptr = get_error_reason(this[kPtr]); + const u8 = new Uint8Array(memory.buffer); + const len = u8.indexOf(0, ptr) - ptr; + throw new Error(cstr(ptr, len)); + } +} + + +{ + const p = new HTTPParser(HTTPParser.REQUEST); + + p.execute(Buffer.from([ + 'POST /owo HTTP/1.1', + 'X: Y', + 'Content-Length: 9', + '', + 'uh, meow?', + '', + ].join('\r\n'))); + + console.log(p); + + p.destroy(); +} + +{ + const p = new HTTPParser(HTTPParser.RESPONSE); + + p.execute(Buffer.from(`\ +HTTP/1.1 200 OK\r +X: Y\r +Content-Length: 9\r +\r +uh, meow?\r +`)); + + console.log(p); + + p.destroy(); +} From d59b33bb96d1e52f4683fd8b6651534741506c58 Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Mon, 29 Mar 2021 18:47:19 +0200 Subject: [PATCH 08/10] examples: minor refactor --- examples/wasm.ts | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/examples/wasm.ts b/examples/wasm.ts index 3b900549..7b91c222 100644 --- a/examples/wasm.ts +++ b/examples/wasm.ts @@ -235,13 +235,13 @@ class HTTPParser { { const p = new HTTPParser(HTTPParser.RESPONSE); - p.execute(Buffer.from(`\ -HTTP/1.1 200 OK\r -X: Y\r -Content-Length: 9\r -\r -uh, meow?\r -`)); + p.execute(Buffer.from([ + 'HTTP/1.1 200 OK', + 'X: Y', + 'Content-Length: 9', + '', + 'uh, meow?' + ].join('\r\n'))); console.log(p); From b0773dc438b1b543d6615165e0ac7a11e2647aff Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Fri, 2 Apr 2021 09:33:28 +0200 Subject: [PATCH 09/10] build(wasm): export constants for ts and js users --- bin/build_wasm.ts | 14 +++++++++----- examples/wasm.ts | 8 ++++---- package.json | 5 +++-- 3 files changed, 16 insertions(+), 11 deletions(-) diff --git a/bin/build_wasm.ts b/bin/build_wasm.ts index bad81637..f80fef77 100644 --- a/bin/build_wasm.ts +++ b/bin/build_wasm.ts @@ -1,5 +1,5 @@ import { execSync } from 'child_process'; -import { mkdirSync, writeFileSync } from 'fs'; +import { copyFileSync, mkdirSync, writeFileSync } from 'fs'; import { stringify } from 'javascript-stringify'; import { join, resolve } from 'path'; import { constants } from '..'; @@ -29,7 +29,7 @@ if (process.argv[2] === '--docker') { if (process.platform === 'linux') { cmd += ` --user ${process.getuid()}:${process.getegid()}`; } - cmd += ` --mount type=bind,source=${WASM_SRC}/build,target=/home/node/llhttp/build llhttp_wasm_builder node build_wasm.js`; + cmd += ` --mount type=bind,source=${WASM_SRC}/build,target=/home/node/llhttp/build llhttp_wasm_builder npm run wasm`; execSync(cmd, { cwd: WASM_SRC, stdio: 'inherit' }); process.exit(0); } @@ -71,6 +71,10 @@ execSync(`${WASI_ROOT}/bin/clang \ -I${join(WASM_SRC, 'build')} \ -o ${join(WASM_OUT, 'llhttp.wasm')}`, { stdio: 'inherit' }); -// Build `constants.js` file -const data = `module.exports = ${stringify(constants)}`; -writeFileSync(join(WASM_OUT, 'constants.js'), data, 'utf8'); +// Copy constants for `.js` and `.ts` users. +copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'constants.js'), join(WASM_OUT, 'constants.js')); +copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'constants.js.map'), join(WASM_OUT, 'constants.js.map')); +copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'constants.d.ts'), join(WASM_OUT, 'constants.d.ts')); +copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'utils.js'), join(WASM_OUT, 'utils.js')); +copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'utils.js.map'), join(WASM_OUT, 'utils.js.map')); +copyFileSync(join(WASM_SRC, 'lib', 'llhttp', 'utils.d.ts'), join(WASM_OUT, 'utils.d.ts')); diff --git a/examples/wasm.ts b/examples/wasm.ts index 7b91c222..7009af9a 100644 --- a/examples/wasm.ts +++ b/examples/wasm.ts @@ -7,7 +7,7 @@ */ import { readFileSync } from 'fs'; import { resolve } from 'path'; -import constants from '../build/wasm/constants.js'; +import * as constants from '../build/wasm/constants'; const bin = readFileSync(resolve(__dirname, '../build/wasm/llhttp.wasm')); const mod = new WebAssembly.Module(bin); @@ -30,7 +30,6 @@ const kBody = Symbol('kBody'); const kReset = Symbol('kReset'); const kCheckErr = Symbol('kCheckErr'); - const cstr = (ptr: number, len: number): string => Buffer.from(memory.buffer, ptr, len).toString(); @@ -64,6 +63,7 @@ const wasm_on_header_value = (p: number, at: number, length: number) => { const wasm_on_headers_complete = (p: number) => { const i = instMap.get(p); + console.log(get_type); const type = get_type(p); const versionMajor = get_version_major(p); const versionMinor = get_version_minor(p); @@ -119,7 +119,7 @@ const memory = inst.exports.memory as any; const alloc = inst.exports.llhttp_alloc as CallableFunction; const malloc = inst.exports.malloc as CallableFunction; const execute = inst.exports.llhttp_execute as CallableFunction; -const get_type = inst.exports.get_type as CallableFunction; +const get_type = inst.exports.llhttp_get_type as CallableFunction; const get_upgrade = inst.exports.llhttp_get_upgrade as CallableFunction; const should_keep_alive = inst.exports.llhttp_should_keep_alive as CallableFunction; const get_method = inst.exports.llhttp_get_method as CallableFunction; @@ -149,7 +149,7 @@ class HTTPParser { [kHeadersValues]: []|[string]; [kBody]: null|Buffer; - constructor(type: string|number) { + constructor(type: constants.TYPE) { this[kPtr] = alloc(constants.TYPE[type]); instMap.set(this[kPtr], this); diff --git a/package.json b/package.json index fd4004e5..c897e732 100644 --- a/package.json +++ b/package.json @@ -12,8 +12,9 @@ "bench": "ts-node bench/", "build": "ts-node bin/generate.ts", "build-ts": "tsc", - "prebuild-wasm": "docker build -t llhttp_wasm_builder . && ts-node bin/build_wasm.ts --setup", - "build-wasm": "ts-node bin/build_wasm.ts --docker", + "prebuild-wasm": "docker build -t llhttp_wasm_builder . && npm run wasm -- --setup", + "build-wasm": "npm run wasm -- --docker", + "wasm": "ts-node bin/build_wasm.ts", "clean": "rm -rf lib && rm -rf test/tmp", "prepare": "npm run clean && npm run build-ts", "lint": "tslint -c tslint.json bin/*.ts src/*.ts src/**/*.ts test/*.ts test/**/*.ts", From a18d702f248dcbc35f7347aa1c03b94cdce23f2b Mon Sep 17 00:00:00 2001 From: Daniele Belardi Date: Fri, 2 Apr 2021 15:33:53 +0200 Subject: [PATCH 10/10] build(wasm): stricter dockerignore This reduces the context size from a few MB to a few KB. Minor cleanup in `examples/wasm.ts`. --- .dockerignore | 12 ++++++------ examples/wasm.ts | 3 +-- 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/.dockerignore b/.dockerignore index 67ae8f83..11b226d8 100644 --- a/.dockerignore +++ b/.dockerignore @@ -1,6 +1,6 @@ -node_modules -.github -bench -test -images -lib +* +!package.json +!package-lock.json +!tsconfig.json +!bin +!src diff --git a/examples/wasm.ts b/examples/wasm.ts index 7009af9a..995fed83 100644 --- a/examples/wasm.ts +++ b/examples/wasm.ts @@ -2,7 +2,7 @@ * A minimal Parser that mimicks a small fraction of the Node.js parser * API. * To run: - * - `npm run build` + * - `npm run build-wasm` * - `npx ts-node examples/wasm.ts` */ import { readFileSync } from 'fs'; @@ -63,7 +63,6 @@ const wasm_on_header_value = (p: number, at: number, length: number) => { const wasm_on_headers_complete = (p: number) => { const i = instMap.get(p); - console.log(get_type); const type = get_type(p); const versionMajor = get_version_major(p); const versionMinor = get_version_minor(p);