diff --git a/.gitignore b/.gitignore index 3b735ec..9b0ee9c 100644 --- a/.gitignore +++ b/.gitignore @@ -18,4 +18,4 @@ # vendor/ # Go workspace file -go.work +# go.work diff --git a/go.mod b/go.mod index e384729..f231777 100644 --- a/go.mod +++ b/go.mod @@ -6,3 +6,5 @@ require ( github.com/mdm-code/scanner v1.2.1 github.com/pelletier/go-toml/v2 v2.1.0 ) + +require github.com/stretchr/testify v1.10.0 // indirect diff --git a/go.sum b/go.sum index 24b2f84..c1eedcf 100644 --- a/go.sum +++ b/go.sum @@ -12,8 +12,9 @@ github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSS github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= -github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk= github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= +github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA= +github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= diff --git a/go.work b/go.work new file mode 100644 index 0000000..349edc2 --- /dev/null +++ b/go.work @@ -0,0 +1,6 @@ +go 1.24.0 + +use ( + . + ./tqweb +) diff --git a/tqweb/Makefile b/tqweb/Makefile new file mode 100644 index 0000000..dab8b2f --- /dev/null +++ b/tqweb/Makefile @@ -0,0 +1,42 @@ +GO=go +GOFLAGS=-mod=vendor +HTMX_VERSION?=2.0.8 +# NOTE +# ==== +# #1 The master version of the Javascript code fom the go-wasm-http-server has +# been updated since the version v2.2.1. If for any reason it might be necessary +# to revert to the version used in Go code, here is a quick shell script to +# pull the version from the go.mod file. +# +# #2 The master version seems not to work right with Go 1.24.0. +# +GO_WASM_HTTP_SERVER_VERSION?=$(shell\ + grep go-wasm-http-server go.mod |\ + cut -d' ' -f3\ +) +# GO_WASM_HTTP_SERVER_VERSION?=master +# ==== + +# export CGO_ENABLED=0 +export GOOS=js +export GOARCH=wasm + +ifndef VERBOSE +.SILENT: +endif + +.PHONY: assets build serve + +.PHONY: .ONESHELL +.ONESHELL: + +assets: + cp $$(go env GOROOT)/lib/wasm/wasm_exec.js wasm_exec.js + curl https://cdn.jsdelivr.net/npm/htmx.org@$(HTMX_VERSION)/dist/htmx.min.js > htmx.min.js + curl https://cdn.jsdelivr.net/gh/nlepage/go-wasm-http-server@$(GO_WASM_HTTP_SERVER_VERSION)/sw.js > sw.js + +build: + $(GO) build $(GOFLAGS) -o api.wasm . + +serve: + $(shell goexec 'http.ListenAndServe(`:18080`, http.FileServer(http.Dir(`.`)))') diff --git a/tqweb/go.mod b/tqweb/go.mod new file mode 100644 index 0000000..ed39d38 --- /dev/null +++ b/tqweb/go.mod @@ -0,0 +1,16 @@ +module github.com/mdm-code/tqweb + +go 1.24.0 + +require ( + github.com/mdm-code/tq/v2 v2.4.0 + github.com/nlepage/go-wasm-http-server/v2 v2.2.1 +) + +require ( + github.com/hack-pad/safejs v0.1.1 // indirect + github.com/mdm-code/scanner v1.2.1 // indirect + github.com/nlepage/go-js-promise v1.0.0 // indirect + github.com/pelletier/go-toml/v2 v2.1.0 // indirect + github.com/stretchr/testify v1.10.0 // indirect +) diff --git a/tqweb/go.sum b/tqweb/go.sum new file mode 100644 index 0000000..420a222 --- /dev/null +++ b/tqweb/go.sum @@ -0,0 +1,29 @@ +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/hack-pad/safejs v0.1.1 h1:d5qPO0iQ7h2oVtpzGnLExE+Wn9AtytxIfltcS2b9KD8= +github.com/hack-pad/safejs v0.1.1/go.mod h1:HdS+bKF1NrE72VoXZeWzxFOVQVUSqZJAG0xNCnb+Tio= +github.com/mdm-code/scanner v1.2.1 h1:GZ1DYAkhTXK+M4AG65L5fnl5eUt7M6XDAYBVZNH+cBc= +github.com/mdm-code/scanner v1.2.1/go.mod h1:ut94FGYZVrQk7uBkf0vJ0ngKuJbdkTEDnmY07ZI8yb0= +github.com/mdm-code/tq/v2 v2.4.0 h1:vjrQfjRROhzquRSjPCrYGdlXTAqZSOdwS6/62hRsfrA= +github.com/mdm-code/tq/v2 v2.4.0/go.mod h1:VfOFONplmcxx0EXu8rLZYpC8dOJg76EYnwbnXL9R4ZA= +github.com/nlepage/go-js-promise v1.0.0 h1:K7OmJ3+0BgWJ2LfXchg2sI6RDr7AW/KWR8182epFwGQ= +github.com/nlepage/go-js-promise v1.0.0/go.mod h1:bdOP0wObXu34euibyK39K1hoBCtlgTKXGc56AGflaRo= +github.com/nlepage/go-wasm-http-server/v2 v2.2.1 h1:4tzhSb3HKQ3Ykt2TPfqEnmcPfw8n1E8agv4OzAyckr8= +github.com/nlepage/go-wasm-http-server/v2 v2.2.1/go.mod h1:r8j7cEOeUqNp+c+C52sNuWaFTvvT/cNqIwBuEtA36HA= +github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4= +github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc= +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= +github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= +github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= +github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= +github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA= +github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/tqweb/htmx.min.js b/tqweb/htmx.min.js new file mode 100644 index 0000000..faafa3e --- /dev/null +++ b/tqweb/htmx.min.js @@ -0,0 +1 @@ +var htmx=function(){"use strict";const Q={onLoad:null,process:null,on:null,off:null,trigger:null,ajax:null,find:null,findAll:null,closest:null,values:function(e,t){const n=dn(e,t||"post");return 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+
+
+
+
+
+

+ QUERY +

+
+
+ +
+
+
+
+

+ TOML +

+
+
+ +
+
+
+
+
+
+

+ OUTPUT +

+
+
+ +
+
+
+
+
+
+ + diff --git a/tqweb/main.go b/tqweb/main.go new file mode 100644 index 0000000..a6e57eb --- /dev/null +++ b/tqweb/main.go @@ -0,0 +1,57 @@ +//go:build js && wasm + +package main + +import ( + "bytes" + _ "embed" + "html/template" + "net/http" + "strings" + + "github.com/mdm-code/tq/v2" + "github.com/mdm-code/tq/v2/toml" + wasmhttp "github.com/nlepage/go-wasm-http-server/v2" +) + +/* +TODO: +1. Tq config for GoTOML is sent from the frontend selection component. +- Checkboxes: send true if checked. +- Buttons: on click, keep highlighted and add to the payload. +2. The config and TQ has to be instantiated with each call. +3. Curl tailwind css scripts. +*/ + +var ( + //go:embed views/index.html + index string + indexT = template.Must(template.New("index").Parse(index)) +) + +func main() { + conf := toml.GoTOMLConf{} + goToml := toml.NewGoTOML(conf) + adapter := toml.NewAdapter(goToml) + tq := tq.New(adapter) + + http.HandleFunc("/process", func(w http.ResponseWriter, r *http.Request) { + var output bytes.Buffer + var data struct{ Output string } + input := r.FormValue("input") + query := r.FormValue("query") + err := tq.Run(strings.NewReader(input), &output, query) + if err != nil { + data.Output = err.Error() + } else { + data.Output = output.String() + } + if err := indexT.ExecuteTemplate(w, "output", data); err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + } + }) + + wasmhttp.Serve(nil) + + select {} +} diff --git a/tqweb/sw.js b/tqweb/sw.js new file mode 100644 index 0000000..11e0ae0 --- /dev/null +++ b/tqweb/sw.js @@ -0,0 +1,42 @@ +function registerWasmHTTPListener(wasm, { base, cacheName, passthrough, args = [] } = {}) { + let path = new URL(registration.scope).pathname + if (base && base !== '') path = `${trimEnd(path, '/')}/${trimStart(base, '/')}` + + const handlerPromise = new Promise(setHandler => { + self.wasmhttp = { + path, + setHandler, + } + }) + + const go = new Go() + go.argv = [wasm, ...args] + const source = cacheName + ? caches.open(cacheName).then((cache) => cache.match(wasm)).then((response) => response ?? fetch(wasm)) + : caches.match(wasm).then(response => (response) ?? fetch(wasm)) + WebAssembly.instantiateStreaming(source, go.importObject).then(({ instance }) => go.run(instance)) + + addEventListener('fetch', e => { + if (passthrough?.(e.request)) { + e.respondWith(fetch(e.request)) + return; + } + + const { pathname } = new URL(e.request.url) + if (!pathname.startsWith(path)) return + + e.respondWith(handlerPromise.then(handler => handler(e.request))) + }) +} + +function trimStart(s, c) { + let r = s + while (r.startsWith(c)) r = r.slice(c.length) + return r +} + +function trimEnd(s, c) { + let r = s + while (r.endsWith(c)) r = r.slice(0, -c.length) + return r +} diff --git a/tqweb/views/index.html b/tqweb/views/index.html new file mode 100644 index 0000000..b2cc191 --- /dev/null +++ b/tqweb/views/index.html @@ -0,0 +1,8 @@ +{{ block "output" . }} + +{{ end }} diff --git a/tqweb/wasm_exec.js b/tqweb/wasm_exec.js new file mode 100644 index 0000000..d71af9e --- /dev/null +++ b/tqweb/wasm_exec.js @@ -0,0 +1,575 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +"use strict"; + +(() => { + const enosys = () => { + const err = new Error("not implemented"); + err.code = "ENOSYS"; + return err; + }; + + if (!globalThis.fs) { + let outputBuf = ""; + globalThis.fs = { + constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused + writeSync(fd, buf) { + outputBuf += decoder.decode(buf); + const nl = outputBuf.lastIndexOf("\n"); + if (nl != -1) { + console.log(outputBuf.substring(0, nl)); + outputBuf = outputBuf.substring(nl + 1); + } + return buf.length; + }, + write(fd, buf, offset, length, position, callback) { + if (offset !== 0 || length !== buf.length || position !== null) { + callback(enosys()); + return; + } + const n = this.writeSync(fd, buf); + callback(null, n); + }, + chmod(path, mode, callback) { callback(enosys()); }, + chown(path, uid, gid, callback) { callback(enosys()); }, + close(fd, callback) { callback(enosys()); }, + fchmod(fd, mode, callback) { callback(enosys()); }, + fchown(fd, uid, gid, callback) { callback(enosys()); }, + fstat(fd, callback) { callback(enosys()); }, + fsync(fd, callback) { callback(null); }, + ftruncate(fd, length, callback) { callback(enosys()); }, + lchown(path, uid, gid, callback) { callback(enosys()); }, + link(path, link, callback) { callback(enosys()); }, + lstat(path, callback) { callback(enosys()); }, + mkdir(path, perm, callback) { callback(enosys()); }, + open(path, flags, mode, callback) { callback(enosys()); }, + read(fd, buffer, offset, length, position, callback) { callback(enosys()); }, + readdir(path, callback) { callback(enosys()); }, + readlink(path, callback) { callback(enosys()); }, + rename(from, to, callback) { callback(enosys()); }, + rmdir(path, callback) { callback(enosys()); }, + stat(path, callback) { callback(enosys()); }, + symlink(path, link, callback) { callback(enosys()); }, + truncate(path, length, callback) { callback(enosys()); }, + unlink(path, callback) { callback(enosys()); }, + utimes(path, atime, mtime, callback) { callback(enosys()); }, + }; + } + + if (!globalThis.process) { + globalThis.process = { + getuid() { return -1; }, + getgid() { return -1; }, + geteuid() { return -1; }, + getegid() { return -1; }, + getgroups() { throw enosys(); }, + pid: -1, + ppid: -1, + umask() { throw enosys(); }, + cwd() { throw enosys(); }, + chdir() { throw enosys(); }, + } + } + + if (!globalThis.path) { + globalThis.path = { + resolve(...pathSegments) { + return pathSegments.join("/"); + } + } + } + + if (!globalThis.crypto) { + throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)"); + } + + if (!globalThis.performance) { + throw new Error("globalThis.performance is not available, polyfill required (performance.now only)"); + } + + if (!globalThis.TextEncoder) { + throw new Error("globalThis.TextEncoder is not available, polyfill required"); + } + + if (!globalThis.TextDecoder) { + throw new Error("globalThis.TextDecoder is not available, polyfill required"); + } + + const encoder = new TextEncoder("utf-8"); + const decoder = new TextDecoder("utf-8"); + + globalThis.Go = class { + constructor() { + this.argv = ["js"]; + this.env = {}; + this.exit = (code) => { + if (code !== 0) { + console.warn("exit code:", code); + } + }; + this._exitPromise = new Promise((resolve) => { + this._resolveExitPromise = resolve; + }); + this._pendingEvent = null; + this._scheduledTimeouts = new Map(); + this._nextCallbackTimeoutID = 1; + + const setInt64 = (addr, v) => { + this.mem.setUint32(addr + 0, v, true); + this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true); + } + + const setInt32 = (addr, v) => { + this.mem.setUint32(addr + 0, v, true); + } + + const getInt64 = (addr) => { + const low = this.mem.getUint32(addr + 0, true); + const high = this.mem.getInt32(addr + 4, true); + return low + high * 4294967296; + } + + const loadValue = (addr) => { + const f = this.mem.getFloat64(addr, true); + if (f === 0) { + return undefined; + } + if (!isNaN(f)) { + return f; + } + + const id = this.mem.getUint32(addr, true); + return this._values[id]; + } + + const storeValue = (addr, v) => { + const nanHead = 0x7FF80000; + + if (typeof v === "number" && v !== 0) { + if (isNaN(v)) { + this.mem.setUint32(addr + 4, nanHead, true); + this.mem.setUint32(addr, 0, true); + return; + } + this.mem.setFloat64(addr, v, true); + return; + } + + if (v === undefined) { + this.mem.setFloat64(addr, 0, true); + return; + } + + let id = this._ids.get(v); + if (id === undefined) { + id = this._idPool.pop(); + if (id === undefined) { + id = this._values.length; + } + this._values[id] = v; + this._goRefCounts[id] = 0; + this._ids.set(v, id); + } + this._goRefCounts[id]++; + let typeFlag = 0; + switch (typeof v) { + case "object": + if (v !== null) { + typeFlag = 1; + } + break; + case "string": + typeFlag = 2; + break; + case "symbol": + typeFlag = 3; + break; + case "function": + typeFlag = 4; + break; + } + this.mem.setUint32(addr + 4, nanHead | typeFlag, true); + this.mem.setUint32(addr, id, true); + } + + const loadSlice = (addr) => { + const array = getInt64(addr + 0); + const len = getInt64(addr + 8); + return new Uint8Array(this._inst.exports.mem.buffer, array, len); + } + + const loadSliceOfValues = (addr) => { + const array = getInt64(addr + 0); + const len = getInt64(addr + 8); + const a = new Array(len); + for (let i = 0; i < len; i++) { + a[i] = loadValue(array + i * 8); + } + return a; + } + + const loadString = (addr) => { + const saddr = getInt64(addr + 0); + const len = getInt64(addr + 8); + return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len)); + } + + const testCallExport = (a, b) => { + this._inst.exports.testExport0(); + return this._inst.exports.testExport(a, b); + } + + const timeOrigin = Date.now() - performance.now(); + this.importObject = { + _gotest: { + add: (a, b) => a + b, + callExport: testCallExport, + }, + gojs: { + // Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters) + // may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported + // function. A goroutine can switch to a new stack if the current stack is too small (see morestack function). + // This changes the SP, thus we have to update the SP used by the imported function. + + // func wasmExit(code int32) + "runtime.wasmExit": (sp) => { + sp >>>= 0; + const code = this.mem.getInt32(sp + 8, true); + this.exited = true; + delete this._inst; + delete this._values; + delete this._goRefCounts; + delete this._ids; + delete this._idPool; + this.exit(code); + }, + + // func wasmWrite(fd uintptr, p unsafe.Pointer, n int32) + "runtime.wasmWrite": (sp) => { + sp >>>= 0; + const fd = getInt64(sp + 8); + const p = getInt64(sp + 16); + const n = this.mem.getInt32(sp + 24, true); + fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n)); + }, + + // func resetMemoryDataView() + "runtime.resetMemoryDataView": (sp) => { + sp >>>= 0; + this.mem = new DataView(this._inst.exports.mem.buffer); + }, + + // func nanotime1() int64 + "runtime.nanotime1": (sp) => { + sp >>>= 0; + setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000); + }, + + // func walltime() (sec int64, nsec int32) + "runtime.walltime": (sp) => { + sp >>>= 0; + const msec = (new Date).getTime(); + setInt64(sp + 8, msec / 1000); + this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true); + }, + + // func scheduleTimeoutEvent(delay int64) int32 + "runtime.scheduleTimeoutEvent": (sp) => { + sp >>>= 0; + const id = this._nextCallbackTimeoutID; + this._nextCallbackTimeoutID++; + this._scheduledTimeouts.set(id, setTimeout( + () => { + this._resume(); + while (this._scheduledTimeouts.has(id)) { + // for some reason Go failed to register the timeout event, log and try again + // (temporary workaround for https://github.com/golang/go/issues/28975) + console.warn("scheduleTimeoutEvent: missed timeout event"); + this._resume(); + } + }, + getInt64(sp + 8), + )); + this.mem.setInt32(sp + 16, id, true); + }, + + // func clearTimeoutEvent(id int32) + "runtime.clearTimeoutEvent": (sp) => { + sp >>>= 0; + const id = this.mem.getInt32(sp + 8, true); + clearTimeout(this._scheduledTimeouts.get(id)); + this._scheduledTimeouts.delete(id); + }, + + // func getRandomData(r []byte) + "runtime.getRandomData": (sp) => { + sp >>>= 0; + crypto.getRandomValues(loadSlice(sp + 8)); + }, + + // func finalizeRef(v ref) + "syscall/js.finalizeRef": (sp) => { + sp >>>= 0; + const id = this.mem.getUint32(sp + 8, true); + this._goRefCounts[id]--; + if (this._goRefCounts[id] === 0) { + const v = this._values[id]; + this._values[id] = null; + this._ids.delete(v); + this._idPool.push(id); + } + }, + + // func stringVal(value string) ref + "syscall/js.stringVal": (sp) => { + sp >>>= 0; + storeValue(sp + 24, loadString(sp + 8)); + }, + + // func valueGet(v ref, p string) ref + "syscall/js.valueGet": (sp) => { + sp >>>= 0; + const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16)); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 32, result); + }, + + // func valueSet(v ref, p string, x ref) + "syscall/js.valueSet": (sp) => { + sp >>>= 0; + Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32)); + }, + + // func valueDelete(v ref, p string) + "syscall/js.valueDelete": (sp) => { + sp >>>= 0; + Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16)); + }, + + // func valueIndex(v ref, i int) ref + "syscall/js.valueIndex": (sp) => { + sp >>>= 0; + storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16))); + }, + + // valueSetIndex(v ref, i int, x ref) + "syscall/js.valueSetIndex": (sp) => { + sp >>>= 0; + Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24)); + }, + + // func valueCall(v ref, m string, args []ref) (ref, bool) + "syscall/js.valueCall": (sp) => { + sp >>>= 0; + try { + const v = loadValue(sp + 8); + const m = Reflect.get(v, loadString(sp + 16)); + const args = loadSliceOfValues(sp + 32); + const result = Reflect.apply(m, v, args); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 56, result); + this.mem.setUint8(sp + 64, 1); + } catch (err) { + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 56, err); + this.mem.setUint8(sp + 64, 0); + } + }, + + // func valueInvoke(v ref, args []ref) (ref, bool) + "syscall/js.valueInvoke": (sp) => { + sp >>>= 0; + try { + const v = loadValue(sp + 8); + const args = loadSliceOfValues(sp + 16); + const result = Reflect.apply(v, undefined, args); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, result); + this.mem.setUint8(sp + 48, 1); + } catch (err) { + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, err); + this.mem.setUint8(sp + 48, 0); + } + }, + + // func valueNew(v ref, args []ref) (ref, bool) + "syscall/js.valueNew": (sp) => { + sp >>>= 0; + try { + const v = loadValue(sp + 8); + const args = loadSliceOfValues(sp + 16); + const result = Reflect.construct(v, args); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, result); + this.mem.setUint8(sp + 48, 1); + } catch (err) { + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, err); + this.mem.setUint8(sp + 48, 0); + } + }, + + // func valueLength(v ref) int + "syscall/js.valueLength": (sp) => { + sp >>>= 0; + setInt64(sp + 16, parseInt(loadValue(sp + 8).length)); + }, + + // valuePrepareString(v ref) (ref, int) + "syscall/js.valuePrepareString": (sp) => { + sp >>>= 0; + const str = encoder.encode(String(loadValue(sp + 8))); + storeValue(sp + 16, str); + setInt64(sp + 24, str.length); + }, + + // valueLoadString(v ref, b []byte) + "syscall/js.valueLoadString": (sp) => { + sp >>>= 0; + const str = loadValue(sp + 8); + loadSlice(sp + 16).set(str); + }, + + // func valueInstanceOf(v ref, t ref) bool + "syscall/js.valueInstanceOf": (sp) => { + sp >>>= 0; + this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0); + }, + + // func copyBytesToGo(dst []byte, src ref) (int, bool) + "syscall/js.copyBytesToGo": (sp) => { + sp >>>= 0; + const dst = loadSlice(sp + 8); + const src = loadValue(sp + 32); + if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) { + this.mem.setUint8(sp + 48, 0); + return; + } + const toCopy = src.subarray(0, dst.length); + dst.set(toCopy); + setInt64(sp + 40, toCopy.length); + this.mem.setUint8(sp + 48, 1); + }, + + // func copyBytesToJS(dst ref, src []byte) (int, bool) + "syscall/js.copyBytesToJS": (sp) => { + sp >>>= 0; + const dst = loadValue(sp + 8); + const src = loadSlice(sp + 16); + if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) { + this.mem.setUint8(sp + 48, 0); + return; + } + const toCopy = src.subarray(0, dst.length); + dst.set(toCopy); + setInt64(sp + 40, toCopy.length); + this.mem.setUint8(sp + 48, 1); + }, + + "debug": (value) => { + console.log(value); + }, + } + }; + } + + async run(instance) { + if (!(instance instanceof WebAssembly.Instance)) { + throw new Error("Go.run: WebAssembly.Instance expected"); + } + this._inst = instance; + this.mem = new DataView(this._inst.exports.mem.buffer); + this._values = [ // JS values that Go currently has references to, indexed by reference id + NaN, + 0, + null, + true, + false, + globalThis, + this, + ]; + this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id + this._ids = new Map([ // mapping from JS values to reference ids + [0, 1], + [null, 2], + [true, 3], + [false, 4], + [globalThis, 5], + [this, 6], + ]); + this._idPool = []; // unused ids that have been garbage collected + this.exited = false; // whether the Go program has exited + + // Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory. + let offset = 4096; + + const strPtr = (str) => { + const ptr = offset; + const bytes = encoder.encode(str + "\0"); + new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes); + offset += bytes.length; + if (offset % 8 !== 0) { + offset += 8 - (offset % 8); + } + return ptr; + }; + + const argc = this.argv.length; + + const argvPtrs = []; + this.argv.forEach((arg) => { + argvPtrs.push(strPtr(arg)); + }); + argvPtrs.push(0); + + const keys = Object.keys(this.env).sort(); + keys.forEach((key) => { + argvPtrs.push(strPtr(`${key}=${this.env[key]}`)); + }); + argvPtrs.push(0); + + const argv = offset; + argvPtrs.forEach((ptr) => { + this.mem.setUint32(offset, ptr, true); + this.mem.setUint32(offset + 4, 0, true); + offset += 8; + }); + + // The linker guarantees global data starts from at least wasmMinDataAddr. + // Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr. + const wasmMinDataAddr = 4096 + 8192; + if (offset >= wasmMinDataAddr) { + throw new Error("total length of command line and environment variables exceeds limit"); + } + + this._inst.exports.run(argc, argv); + if (this.exited) { + this._resolveExitPromise(); + } + await this._exitPromise; + } + + _resume() { + if (this.exited) { + throw new Error("Go program has already exited"); + } + this._inst.exports.resume(); + if (this.exited) { + this._resolveExitPromise(); + } + } + + _makeFuncWrapper(id) { + const go = this; + return function () { + const event = { id: id, this: this, args: arguments }; + go._pendingEvent = event; + go._resume(); + return event.result; + }; + } + } +})(); diff --git a/tqweb/worker.js b/tqweb/worker.js new file mode 100644 index 0000000..e04a585 --- /dev/null +++ b/tqweb/worker.js @@ -0,0 +1,14 @@ +importScripts('wasm_exec.js'); +importScripts('sw.js'); + +const wasm = 'api.wasm'; + +addEventListener('install', (event) => { + event.waitUntil(caches.open('api').then((cache) => cache.add(wasm))); +}); + +addEventListener('activate', (event) => { + event.waitUntil(clients.claim()); +}); + +registerWasmHTTPListener(wasm, { base: 'api' }); diff --git a/vendor/github.com/hack-pad/safejs/.env b/vendor/github.com/hack-pad/safejs/.env new file mode 100644 index 0000000..13468cb --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/.env @@ -0,0 +1,3 @@ +# Env file defines useful environment variables for editors. +GOOS=js +GOARCH=wasm diff --git a/vendor/github.com/hack-pad/safejs/.gitignore b/vendor/github.com/hack-pad/safejs/.gitignore new file mode 100644 index 0000000..e87afd9 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/.gitignore @@ -0,0 +1 @@ +/*.out diff --git a/vendor/github.com/hack-pad/safejs/.golangci.yml b/vendor/github.com/hack-pad/safejs/.golangci.yml new file mode 100644 index 0000000..423e830 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/.golangci.yml @@ -0,0 +1,22 @@ +linters: + enable: + # Default linters, plus these: + - exportloopref + - gocognit + - goconst + - gocritic + - gofmt + - gosec + - misspell + - paralleltest + - revive + +issues: + include: + # Re-enable default excluded rules + - EXC0001 + - EXC0002 + - EXC0012 + - EXC0013 + - EXC0014 + - EXC0015 diff --git a/vendor/github.com/hack-pad/safejs/LICENSE b/vendor/github.com/hack-pad/safejs/LICENSE new file mode 100644 index 0000000..261eeb9 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/hack-pad/safejs/Makefile b/vendor/github.com/hack-pad/safejs/Makefile new file mode 100644 index 0000000..124a6e1 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/Makefile @@ -0,0 +1,39 @@ +SHELL := /usr/bin/env bash +BROWSERTEST_VERSION = v0.6 +LINT_VERSION = 1.50.1 +GO_BIN = $(shell printf '%s/bin' "$$(go env GOPATH)") + +.PHONY: all +all: lint test + +.PHONY: lint-deps +lint-deps: + @if ! which golangci-lint >/dev/null || [[ "$$(golangci-lint version 2>&1)" != *${LINT_VERSION}* ]]; then \ + curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b "${GO_BIN}" v${LINT_VERSION}; \ + fi + +.PHONY: lint +lint: lint-deps + "${GO_BIN}/golangci-lint" run + GOOS=js GOARCH=wasm "${GO_BIN}/golangci-lint" run + +.PHONY: test-deps +test-deps: + @if [[ ! -f "${GO_BIN}/go_js_wasm_exec" ]]; then \ + set -ex; \ + go install github.com/agnivade/wasmbrowsertest@${BROWSERTEST_VERSION}; \ + mv "${GO_BIN}/wasmbrowsertest" "${GO_BIN}/go_js_wasm_exec"; \ + fi + +.PHONY: test +test: test-deps + go test wasm_tags_test.go # Verify build tags and whatnot first + go test -race -coverprofile=native-cover.out ./... # Test non-js side + GOOS=js GOARCH=wasm go test -coverprofile=js-cover.out -covermode=atomic ./... # Test js side + { echo 'mode: atomic'; cat *-cover.out | grep -v '^mode'; } > cover.out && rm *-cover.out # Combine JS and non-JS coverage. + go tool cover -func cover.out | grep total: + +.PHONY: test-publish-coverage +test-publish-coverage: + go install github.com/mattn/goveralls@v0.0.11 + COVERALLS_TOKEN=$$GITHUB_TOKEN goveralls -coverprofile="cover.out" -service=github diff --git a/vendor/github.com/hack-pad/safejs/README.md b/vendor/github.com/hack-pad/safejs/README.md new file mode 100644 index 0000000..dd7c104 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/README.md @@ -0,0 +1,91 @@ +# SafeJS [![Go Reference](https://pkg.go.dev/badge/github.com/hack-pad/safejs.svg)](https://pkg.go.dev/github.com/hack-pad/safejs) [![CI](https://github.com/hack-pad/safejs/actions/workflows/ci.yml/badge.svg)](https://github.com/hack-pad/safejs/actions/workflows/ci.yml) [![Coverage Status](https://coveralls.io/repos/github/hack-pad/safejs/badge.svg?branch=main)](https://coveralls.io/github/hack-pad/safejs?branch=main) + +A safer, drop-in replacement for Go's `syscall/js` JavaScript package. + +## What makes it safer? + +Today, `syscall/js` panics when the JavaScript runtime throws errors. +While sensible in a JavaScript runtime, [Go libraries should avoid using `panic`](https://go.dev/doc/effective_go#panic). + +SafeJS provides a nearly identical API to `syscall/js`, but returns errors instead of panicking. + +Although returned errors aren't pretty, they make it much easier to integrate with existing Go tools and code patterns. + +#### Backward compatibility + +This package uses the same backward compatibility guarantee as `syscall/js`. + +In an effort to align with the Go standard library API, some breaking changes may become necessary and receive their own minor version bumps. + +## Quick start + +1. Get `safejs`: +``` +go get github.com/hack-pad/safejs +``` +2. Import `safejs`: +```go +import "github.com/hack-pad/safejs" +``` +3. Replace uses of `syscall/js` with the `safejs` alternative. + +Before: +```go +//go:build js && wasm + +package buttons + +import "syscall/js" + +// InsertButton creates a new button, adds it to 'container', and returns it. Usually. +func InsertButton(container js.Value) js.Value { + // *whisper:* There's a good chance it could panic! Eh, probably don't need to document it, right? + dom := js.Global().Get("document") // BOOM! + button := dom.Call("createElement", "button") // BANG! + container.Call("appendChild", button) // BAM! + return button +} +``` + +After: +```go +//go:build js && wasm + +package buttons + +import "github.com/hack-pad/safejs" + +// InsertButton creates a new button, adds it to 'container', and returns the button or the first error. +func InsertButton(container safejs.Value) (safejs.Value, error) { + dom, err := safejs.Global().Get("document") + if err != nil { + return err + } + button, err := dom.Call("createElement", "button") + if err != nil { + return err + } + _, err = container.Call("appendChild", button) + if err != nil { + return err + } + return button, nil +} +``` + +## Even safer + +For additional JavaScript safety, use the `jsguard` linter too. + +`jsguard` reports the locations of unsafe JavaScript calls, which should be replaced with calls to SafeJS. + +```bash +# When installed without specifying a version, uses the go.mod version. +go install github.com/hack-pad/safejs/jsguard/cmd/jsguard +export GOOS=js GOARCH=wasm +jsguard ./... +``` + +It *does not* report use of types like `js.Value` -- only function calls on those types. + +This makes it easy to integrate SafeJS into existing libraries which expose only standard library types. diff --git a/vendor/github.com/hack-pad/safejs/bytes.go b/vendor/github.com/hack-pad/safejs/bytes.go new file mode 100644 index 0000000..7b42a3f --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/bytes.go @@ -0,0 +1,27 @@ +//go:build js && wasm + +package safejs + +import ( + "syscall/js" + + "github.com/hack-pad/safejs/internal/catch" +) + +// CopyBytesToGo copies bytes from src to dst. +// Returns the number of bytes copied, which is the minimum of the lengths of src and dst. +// Returns an error if src is not an Uint8Array or Uint8ClampedArray. +func CopyBytesToGo(dst []byte, src Value) (int, error) { + return catch.Try(func() int { + return js.CopyBytesToGo(dst, src.jsValue) + }) +} + +// CopyBytesToJS copies bytes from src to dst. +// Returns the number of bytes copied, which is the minimum of the lengths of src and dst. +// Returns an error if dst is not an Uint8Array or Uint8ClampedArray. +func CopyBytesToJS(dst Value, src []byte) (int, error) { + return catch.Try(func() int { + return js.CopyBytesToJS(dst.jsValue, src) + }) +} diff --git a/vendor/github.com/hack-pad/safejs/doc.go b/vendor/github.com/hack-pad/safejs/doc.go new file mode 100644 index 0000000..ca77820 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/doc.go @@ -0,0 +1,8 @@ +//go:build js && wasm + +/* +Package safejs provides guardrails around the [syscall/js] package, like turning thrown exceptions into errors. + +Since [syscall/js] is experimental, this package may have breaking changes to stay aligned with the latest versions of Go. +*/ +package safejs diff --git a/vendor/github.com/hack-pad/safejs/error.go b/vendor/github.com/hack-pad/safejs/error.go new file mode 100644 index 0000000..fa81a65 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/error.go @@ -0,0 +1,23 @@ +//go:build js && wasm + +package safejs + +import ( + "syscall/js" + + "github.com/hack-pad/safejs/internal/catch" +) + +// Error wraps a JavaScript error. +type Error struct { + err js.Error +} + +// Error implements the error interface. +func (e Error) Error() string { + errStr, err := catch.Try(e.err.Error) + if err != nil { + return "failed generating error message: " + err.Error() + } + return errStr +} diff --git a/vendor/github.com/hack-pad/safejs/func.go b/vendor/github.com/hack-pad/safejs/func.go new file mode 100644 index 0000000..44bc4ec --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/func.go @@ -0,0 +1,45 @@ +//go:build js && wasm + +package safejs + +import ( + "syscall/js" + + "github.com/hack-pad/safejs/internal/catch" +) + +// Func is a wrapped Go function to be called by JavaScript. +type Func struct { + fn js.Func +} + +// FuncOf returns a function to be used by JavaScript. See [js.FuncOf] for details. +func FuncOf(fn func(this Value, args []Value) any) (Func, error) { + jsFunc, err := toJSFunc(fn) + return Func{ + fn: jsFunc, + }, err +} + +func toJSFunc(fn func(this Value, args []Value) any) (js.Func, error) { + jsFunc := func(this js.Value, args []js.Value) any { + result := fn(Safe(this), toValues(args)) + return toJSValue(result) + } + return catch.Try(func() js.Func { + return js.FuncOf(jsFunc) + }) +} + +// Release frees up resources allocated for the function. The function must not be invoked after calling Release. +// It is allowed to call Release while the function is still running. +func (f Func) Release() { + f.fn.Release() +} + +// Value returns this Func's inner Value. For example, using value.Invoke() calls the function. +// +// Equivalent to accessing [js.Func]'s embedded [js.Value] field, only as a safejs type. +func (f Func) Value() Value { + return Safe(f.fn.Value) +} diff --git a/vendor/github.com/hack-pad/safejs/global.go b/vendor/github.com/hack-pad/safejs/global.go new file mode 100644 index 0000000..e46c3f6 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/global.go @@ -0,0 +1,42 @@ +//go:build js && wasm + +package safejs + +import ( + "fmt" + "syscall/js" +) + +// Global returns the JavaScript global object, usually "window" or "global". +func Global() Value { + return Safe(js.Global()) +} + +// MustGetGlobal fetches the given global, then verifies it is truthy. Panics on error or falsy values. +// This is intended for simple global variable initialization, like preparing classes for later instantiation. +// +// For example: +// +// var jsUint8Array = safejs.MustGetGlobal("Uint8Array") +func MustGetGlobal(property string) Value { + value, err := getGlobal(property) + if err != nil { + panic(err) + } + return value +} + +func getGlobal(property string) (Value, error) { + value, err := Global().Get(property) + if err != nil { + return Value{}, err + } + truthy, err := value.Truthy() + if err != nil { + return Value{}, err + } + if !truthy { + return Value{}, fmt.Errorf("global %q is not defined", property) + } + return value, nil +} diff --git a/vendor/github.com/hack-pad/safejs/internal/catch/catch.go b/vendor/github.com/hack-pad/safejs/internal/catch/catch.go new file mode 100644 index 0000000..538daf3 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/internal/catch/catch.go @@ -0,0 +1,47 @@ +//go:build js && wasm + +// Package catch runs functions and returns panic values as errors instead. +package catch + +import ( + "fmt" + "syscall/js" + + "github.com/hack-pad/safejs/internal/stackerr" +) + +// Try runs fn and returns the result. If fn panicked, the panic value is returned as an error instead. +func Try[Result any](fn func() Result) (result Result, err error) { + defer recoverErr(&err) + result = fn() + return +} + +// TrySideEffect is like Try, but does not have a return value. +func TrySideEffect(fn func()) (err error) { + defer recoverErr(&err) + fn() + return +} + +func recoverErr(err *error) { + value := recover() + valueErr := recoverValueToError(value) + if valueErr != nil { + *err = stackerr.WithStack(valueErr) + } +} + +func recoverValueToError(value any) error { + if value == nil { + return nil + } + switch value := value.(type) { + case error: + return value + case js.Value: + return js.Error{Value: value} + default: + return fmt.Errorf("%+v", value) + } +} diff --git a/vendor/github.com/hack-pad/safejs/internal/stackerr/stackerr.go b/vendor/github.com/hack-pad/safejs/internal/stackerr/stackerr.go new file mode 100644 index 0000000..d341f22 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/internal/stackerr/stackerr.go @@ -0,0 +1,79 @@ +//go:build js && wasm + +// Package stackerr adds stack traces to verbose error messages. +package stackerr + +import ( + "fmt" + "runtime" + "strings" +) + +type stackError struct { + err error + stack *stacktrace +} + +// WithStack returns 'err' with a stack trace in its verbose formatter output. +// Returns nil if err is nil. +func WithStack(err error) error { + if err == nil { + return nil + } + + return &stackError{ + err: err, + stack: collectStacktrace(3), + } +} + +func (s *stackError) Error() string { + return s.err.Error() +} + +func (s *stackError) Unwrap() error { + return s.err +} + +func (s *stackError) Format(f fmt.State, verb rune) { + switch verb { + case 'v': + if f.Flag('+') { + fmt.Fprintf(f, "%+v\n%s", s.err, s.stack) + return + } + fmt.Fprint(f, s.Error()) + case 's': + fmt.Fprint(f, s.Error()) + case 'q': + fmt.Fprintf(f, "%q", s.Error()) + } +} + +type stacktrace struct { + callers []uintptr +} + +func collectStacktrace(skip int) *stacktrace { + const ( + maxFrames = 32 + ) + pc := make([]uintptr, maxFrames) + n := runtime.Callers(1+skip, pc) + return &stacktrace{ + callers: pc[:n], + } +} + +func (s *stacktrace) String() string { + var sb strings.Builder + frames := runtime.CallersFrames(s.callers) + for frame, next := frames.Next(); next; frame, next = frames.Next() { + funcName := "unknown" + if frame.Func != nil { + funcName = frame.Func.Name() + } + sb.WriteString(fmt.Sprintf("%s\n\t%s:%d\n", funcName, frame.File, frame.Line)) + } + return sb.String() +} diff --git a/vendor/github.com/hack-pad/safejs/type.go b/vendor/github.com/hack-pad/safejs/type.go new file mode 100644 index 0000000..62db035 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/type.go @@ -0,0 +1,25 @@ +//go:build js && wasm + +package safejs + +import "syscall/js" + +// Type represents the JavaScript type of a Value. +type Type int + +// Available JavaScript types +const ( + TypeUndefined = Type(js.TypeUndefined) + TypeNull = Type(js.TypeNull) + TypeBoolean = Type(js.TypeBoolean) + TypeNumber = Type(js.TypeNumber) + TypeString = Type(js.TypeString) + TypeSymbol = Type(js.TypeSymbol) + TypeObject = Type(js.TypeObject) + TypeFunction = Type(js.TypeFunction) +) + +func (t Type) String() string { + // String() has a panic line, however it should be impossible to hit barring memory corruption + return js.Type(t).String() +} diff --git a/vendor/github.com/hack-pad/safejs/value.go b/vendor/github.com/hack-pad/safejs/value.go new file mode 100644 index 0000000..c4542f5 --- /dev/null +++ b/vendor/github.com/hack-pad/safejs/value.go @@ -0,0 +1,242 @@ +//go:build js && wasm + +package safejs + +import ( + "fmt" + "syscall/js" + + "github.com/hack-pad/safejs/internal/catch" +) + +// Value is a safer version of js.Value. Any panic returns an error instead. +type Value struct { + jsValue js.Value +} + +// Safe wraps a js.Value into a safejs.Value. +// Ideal for use in libraries where exposed types must match the standard library. +func Safe(value js.Value) Value { + return Value{ + jsValue: value, + } +} + +// Unsafe unwraps a safejs.Value back into its js.Value. +// Ideal for use in libraries where exposed types must match the standard library. +func Unsafe(value Value) js.Value { + return value.jsValue +} + +// Null returns the JavaScript value of "null". +func Null() Value { + return Safe(js.Null()) +} + +// Undefined returns the JavaScript value of "undefined". +func Undefined() Value { + return Safe(js.Undefined()) +} + +func toJSValue(jsValue any) any { + switch value := jsValue.(type) { + case Value: + return value.jsValue + case Func: + return value.fn + case Error: + return value.err + case map[string]any: + newValue := make(map[string]any) + for mapKey, mapValue := range value { + newValue[mapKey] = toJSValue(mapValue) + } + return newValue + case []any: + newValue := make([]any, len(value)) + for i, arg := range value { + newValue[i] = toJSValue(arg) + } + return newValue + default: + return jsValue + } +} + +func toJSValues(args []any) []any { + return toJSValue(args).([]any) +} + +func toValues(args []js.Value) []Value { + newArgs := make([]Value, len(args)) + for i, arg := range args { + newArgs[i] = Safe(arg) + } + return newArgs +} + +// ValueOf returns value as a JavaScript value. See [js.ValueOf] for details. +func ValueOf(value any) (Value, error) { + jsValue, err := catch.Try(func() js.Value { + return js.ValueOf(value) + }) + return Safe(jsValue), err +} + +// Bool attempts to convert this value into a boolean, otherwise returns an error. +func (v Value) Bool() (bool, error) { + return catch.Try(v.jsValue.Bool) +} + +// Call does a JavaScript call to the method m of value v with the given arguments. +// The arguments are mapped to JavaScript values according to the ValueOf function. +// Returns an error if v has no method m, the arguments failed to map to JavaScript values, or the function throws an error. +func (v Value) Call(m string, args ...any) (Value, error) { + args = toJSValues(args) + return catch.Try(func() Value { + return Safe(v.jsValue.Call(m, args...)) + }) +} + +// Delete deletes the JavaScript property p of value v. Returns an error if v is not a JavaScript object. +func (v Value) Delete(p string) error { + return catch.TrySideEffect(func() { + v.jsValue.Delete(p) + }) +} + +// Equal reports whether v and w are equal according to JavaScript's === operator. +func (v Value) Equal(w Value) bool { + return v.jsValue.Equal(w.jsValue) +} + +// Float returns the value v as a float64. Returns an error if v is not a JavaScript number. +func (v Value) Float() (float64, error) { + return catch.Try(v.jsValue.Float) +} + +// Get returns the JavaScript property p of value v. Returns an error if v is not a JavaScript object. +func (v Value) Get(p string) (Value, error) { + return catch.Try(func() Value { + return Safe(v.jsValue.Get(p)) + }) +} + +// Index returns JavaScript index i of value v. Returns an error if v is not a JavaScript object. +func (v Value) Index(i int) (Value, error) { + return catch.Try(func() Value { + return Safe(v.jsValue.Index(i)) + }) +} + +// InstanceOf reports whether v is an instance of type t according to JavaScript's instanceof operator. +// Returns an error if v is not a constructable type. +func (v Value) InstanceOf(t Value) (bool, error) { + // Type failures in JS throw "TypeError: Right-hand side of 'instanceof' is not an object" + // so catch those cases here. + // + // A valid type is a function with a field "prototype" which is an object. + if t.Type() != TypeFunction { + return false, fmt.Errorf("invalid type for instanceof: %v", t.Type()) + } + prototype, err := t.Get("prototype") + if err != nil { + return false, fmt.Errorf("invalid constructor type for instanceof: %v", err) + } else if prototype.Type() != TypeObject { + return false, fmt.Errorf("invalid constructor type for instanceof: %v", prototype.Type()) + } + return catch.Try(func() bool { + return v.jsValue.InstanceOf(t.jsValue) + }) +} + +// Int returns the value v truncated to an int. Returns an error if v is not a JavaScript number. +func (v Value) Int() (int, error) { + return catch.Try(v.jsValue.Int) +} + +// Invoke does a JavaScript call of the value v with the given arguments. +// The arguments get mapped to JavaScript values according to the ValueOf function. +// Returns an error if v is not a JavaScript function, the arguments failed to map to JavaScript values, or the function throws an error. +func (v Value) Invoke(args ...any) (Value, error) { + args = toJSValues(args) + return catch.Try(func() Value { + return Safe(v.jsValue.Invoke(args...)) + }) +} + +// IsNaN reports whether v is the JavaScript value "NaN". +func (v Value) IsNaN() bool { + return v.jsValue.IsNaN() +} + +// IsNull reports whether v is the JavaScript value "null". +func (v Value) IsNull() bool { + return v.jsValue.IsNull() +} + +// IsUndefined reports whether v is the JavaScript value "undefined". +func (v Value) IsUndefined() bool { + return v.jsValue.IsUndefined() +} + +// Length returns the JavaScript property "length" of v. +// Returns an error if v is not a JavaScript object. +func (v Value) Length() (int, error) { + return catch.Try(v.jsValue.Length) +} + +// New uses JavaScript's "new" operator with value v as constructor and the given arguments. +// The arguments get mapped to JavaScript values according to the ValueOf function. +// Returns an error if v is not a JavaScript function, the arguments failed to map to JavaScript values, or the constructor throws an error. +func (v Value) New(args ...any) (Value, error) { + args = toJSValues(args) + return catch.Try(func() Value { + return Safe(v.jsValue.New(args...)) + }) +} + +// Set sets the JavaScript property p of value v to ValueOf(x). +// Returns an error if v is not a JavaScript object or x failed to map to a JavaScript value. +func (v Value) Set(p string, x any) error { + x = toJSValue(x) + return catch.TrySideEffect(func() { + v.jsValue.Set(p, x) + }) +} + +// SetIndex sets the JavaScript index i of value v to ValueOf(x). +// Returns an error if if v is not a JavaScript object or x failed to map to a JavaScript value. +func (v Value) SetIndex(i int, x any) error { + x = toJSValue(x) + return catch.TrySideEffect(func() { + v.jsValue.SetIndex(i, x) + }) +} + +// String returns the value v as a string. +// Unlike the other getters, String() does not return an error if v's Type is not TypeString. +// Instead, it returns a string of the form "" or "" where T is v's type and V is a string representation of v's value. +// +// Returns an error if v is an invalid type or the string failed to load from the JavaScript runtime. +// +// NOTE: [syscall/js] takes the stance that String is a special case due to Go's String method convention and avoids panicking. +// However, js.String() can still fail in other ways so an error is returned anyway. +func (v Value) String() (string, error) { + return catch.Try(v.jsValue.String) +} + +// Truthy returns the JavaScript "truthiness" of the value v. +// In JavaScript, false, 0, "", null, undefined, and NaN are "falsy", and everything else is "truthy". +// See https://developer.mozilla.org/en-US/docs/Glossary/Truthy. +// +// Returns an error if v's type is invalid or if the value fails to load from the JavaScript runtime. +func (v Value) Truthy() (bool, error) { + return catch.Try(v.jsValue.Truthy) +} + +// Type returns the JavaScript type of the value v. +// It is similar to JavaScript's typeof operator, except it returns TypeNull instead of TypeObject for null. +func (v Value) Type() Type { + return Type(v.jsValue.Type()) +} diff --git a/vendor/github.com/nlepage/go-js-promise/LICENSE b/vendor/github.com/nlepage/go-js-promise/LICENSE new file mode 100644 index 0000000..fff153b --- /dev/null +++ b/vendor/github.com/nlepage/go-js-promise/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2021 Nicolas LEPAGE + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/nlepage/go-js-promise/README.md b/vendor/github.com/nlepage/go-js-promise/README.md new file mode 100644 index 0000000..4827f46 --- /dev/null +++ b/vendor/github.com/nlepage/go-js-promise/README.md @@ -0,0 +1,3 @@ +# [github.com/nlepage/go-js-promise](https://pkg.go.dev/github.com/nlepage/go-js-promise) + +Go WebAssembly utility package for interacting with JavaScript promises diff --git a/vendor/github.com/nlepage/go-js-promise/promise.go b/vendor/github.com/nlepage/go-js-promise/promise.go new file mode 100644 index 0000000..8376bdb --- /dev/null +++ b/vendor/github.com/nlepage/go-js-promise/promise.go @@ -0,0 +1,56 @@ +package promise + +import ( + "syscall/js" +) + +// New creates a new JavaScript Promise +func New() (p js.Value, resolve func(interface{}), reject func(interface{})) { + var cbFunc js.Func + cbFunc = js.FuncOf(func(_ js.Value, args []js.Value) interface{} { + cbFunc.Release() + + resolve = func(value interface{}) { + args[0].Invoke(value) + } + + reject = func(value interface{}) { + args[1].Invoke(value) + } + + return js.Undefined() + }) + + p = js.Global().Get("Promise").New(cbFunc) + + return +} + +// Await waits for the Promise to be resolved and returns the value +// or an error if the promise rejected +func Await(p js.Value) (js.Value, error) { + resCh := make(chan js.Value) + var then js.Func + then = js.FuncOf(func(_ js.Value, args []js.Value) interface{} { + resCh <- args[0] + return nil + }) + defer then.Release() + + errCh := make(chan error) + var catch js.Func + catch = js.FuncOf(func(_ js.Value, args []js.Value) interface{} { + errCh <- js.Error{args[0]} + return nil + }) + defer catch.Release() + + p.Call("then", then).Call("catch", catch) + + select { + case res := <-resCh: + return res, nil + case err := <-errCh: + return js.Undefined(), err + } +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/.all-contributorsrc b/vendor/github.com/nlepage/go-wasm-http-server/v2/.all-contributorsrc new file mode 100644 index 0000000..642c6b7 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/.all-contributorsrc @@ -0,0 +1,37 @@ +{ + "projectName": "go-wasm-http-server", + "projectOwner": "nlepage", + "repoType": "github", + "repoHost": "https://github.com", + "files": [ + "README.md" + ], + "imageSize": 100, + "commit": false, + "commitConvention": "gitmoji", + "contributors": [ + { + "login": "jphastings", + "name": "JP Hastings-Edrei", + "avatar_url": "https://avatars.githubusercontent.com/u/42999?v=4", + "profile": "https://byjp.me/", + "contributions": [ + "code", + "doc", + "example" + ] + }, + { + "login": "EliCDavis", + "name": "Eli Davis", + "avatar_url": "https://avatars.githubusercontent.com/u/9094977?v=4", + "profile": "https://recolude.com/", + "contributions": [ + "code", + "bug" + ] + } + ], + "contributorsPerLine": 7, + "linkToUsage": false +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/.gitignore b/vendor/github.com/nlepage/go-wasm-http-server/v2/.gitignore new file mode 100644 index 0000000..e3a2287 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/.gitignore @@ -0,0 +1,3 @@ +node_modules/ +*.wasm +!docs/**/*.wasm diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/CODE_OF_CONDUCT.md b/vendor/github.com/nlepage/go-wasm-http-server/v2/CODE_OF_CONDUCT.md new file mode 100644 index 0000000..c51d402 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/CODE_OF_CONDUCT.md @@ -0,0 +1,76 @@ +# Contributor Covenant Code of Conduct + +## Our Pledge + +In the interest of fostering an open and welcoming environment, we as +contributors and maintainers pledge to making participation in our project and +our community a harassment-free experience for everyone, regardless of age, body +size, disability, ethnicity, sex characteristics, gender identity and expression, +level of experience, education, socio-economic status, nationality, personal +appearance, race, religion, or sexual identity and orientation. + +## Our Standards + +Examples of behavior that contributes to creating a positive environment +include: + +* Using welcoming and inclusive language +* Being respectful of differing viewpoints and experiences +* Gracefully accepting constructive criticism +* Focusing on what is best for the community +* Showing empathy towards other community members + +Examples of unacceptable behavior by participants include: + +* The use of sexualized language or imagery and unwelcome sexual attention or + advances +* Trolling, insulting/derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or electronic + address, without explicit permission +* Other conduct which could reasonably be considered inappropriate in a + professional setting + +## Our Responsibilities + +Project maintainers are responsible for clarifying the standards of acceptable +behavior and are expected to take appropriate and fair corrective action in +response to any instances of unacceptable behavior. + +Project maintainers have the right and responsibility to remove, edit, or +reject comments, commits, code, wiki edits, issues, and other contributions +that are not aligned to this Code of Conduct, or to ban temporarily or +permanently any contributor for other behaviors that they deem inappropriate, +threatening, offensive, or harmful. + +## Scope + +This Code of Conduct applies both within project spaces and in public spaces +when an individual is representing the project or its community. Examples of +representing a project or community include using an official project e-mail +address, posting via an official social media account, or acting as an appointed +representative at an online or offline event. Representation of a project may be +further defined and clarified by project maintainers. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported by contacting the project team at nicolas.lepage+go-wasm-http-server@zenika.com. All +complaints will be reviewed and investigated and will result in a response that +is deemed necessary and appropriate to the circumstances. The project team is +obligated to maintain confidentiality with regard to the reporter of an incident. +Further details of specific enforcement policies may be posted separately. + +Project maintainers who do not follow or enforce the Code of Conduct in good +faith may face temporary or permanent repercussions as determined by other +members of the project's leadership. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, +available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html + +[homepage]: https://www.contributor-covenant.org + +For answers to common questions about this code of conduct, see +https://www.contributor-covenant.org/faq diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/LICENSE b/vendor/github.com/nlepage/go-wasm-http-server/v2/LICENSE new file mode 100644 index 0000000..907fcfd --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2025 Nicolas Lepage + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/README.md b/vendor/github.com/nlepage/go-wasm-http-server/v2/README.md new file mode 100644 index 0000000..c1181c9 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/README.md @@ -0,0 +1,238 @@ +

Welcome to go-wasm-http-server πŸ‘‹

+

+ + Go Reference + + + License: Apache 2.0 + +

+ +> Embed your Go HTTP handlers in a ServiceWorker (using [WebAssembly](https://mdn.io/WebAssembly/)) and emulate an HTTP server! + +## Examples + + - [Hello example](https://nlepage.github.io/go-wasm-http-server/hello) ([sources](https://github.com/nlepage/go-wasm-http-server/tree/master/docs/hello)) + - [Hello example with state](https://nlepage.github.io/go-wasm-http-server/hello-state) ([sources](https://github.com/nlepage/go-wasm-http-server/tree/master/docs/hello-state)) + - [Hello example with state and keepalive](https://nlepage.github.io/go-wasm-http-server/hello-state-keepalive) ([sources](https://github.com/nlepage/go-wasm-http-server/tree/master/docs/hello-state-keepalive)) + - [Hello example with Server Sent Events](https://nlepage.github.io/go-wasm-http-server/hello-sse/) ([sources](https://nlepage.github.io/go-wasm-http-server/hello-sse/)) + - [😺 Catption generator example](https://nlepage.github.io/catption/wasm) ([sources](https://github.com/nlepage/catption/tree/wasm)) + - [Random password generator web server](https://nlepage.github.io/random-password-please/) ([sources](https://github.com/nlepage/random-password-please) forked from [jbarham/random-password-please](https://github.com/jbarham/random-password-please)) + - [Server fallbacks, and compiling with TinyGo](https://nlepage.github.io/go-wasm-http-server/tinygo/) (runs locally; see [sources & readme](https://github.com/nlepage/go-wasm-http-server/tree/master/docs/tinygo#readme) for how to run this example) + +## How? + +Talk given at the Go devroom of FOSDEM 2021 explaining how `go-wasm-http-server` works: + +[![Deploy a Go HTTP server in your browser Youtube link](https://raw.githubusercontent.com/nlepage/go-wasm-http-talk/main/youtube.png)](https://youtu.be/O2RB_8ircdE) + +The slides are available [here](https://nlepage.github.io/go-wasm-http-talk/). + +## Why? + +`go-wasm-http-server` can help you put up a demonstration for a project without actually running a Go HTTP server. + +## Requirements + +`go-wasm-http-server` requires you to build your Go application to WebAssembly, so you need to make sure your code is compatible: +- no C bindings +- no System dependencies such as file system or network (database server for example) +- For smaller WASM blobs, your code may also benefit from being compatible with, and compiled by, [TinyGo](https://tinygo.org/docs/reference/lang-support/stdlib/). See the TinyGo specific details below. + +## Usage + +### Step 1: Build to `js/wasm` + +In your Go code, replace [`http.ListenAndServe()`](https://pkg.go.dev/net/http#ListenAndServe) (or [`net.Listen()`](https://pkg.go.dev/net#Listen) + [`http.Serve()`](https://pkg.go.dev/net/http#Serve)) by [wasmhttp.Serve()](https://pkg.go.dev/github.com/nlepage/go-wasm-http-server#Serve): + +πŸ“„ `server.go` +```go +// +build !js,!wasm + +package main + +import ( + "net/http" +) + +func main() { + // Define handlers... + + http.ListenAndServe(":8080", nil) +} +``` + +becomes: + +πŸ“„ `server_js_wasm.go` +```go +// +build js,wasm + +package main + +import ( + wasmhttp "github.com/nlepage/go-wasm-http-server/v2" +) + +func main() { + // Define handlers... + + wasmhttp.Serve(nil) +} +``` + +You may want to use build tags as shown above (or file name suffixes) in order to be able to build both to WebAssembly and other targets. + +Then build your WebAssembly binary: + +```sh +# To compile with Go +GOOS=js GOARCH=wasm go build -o server.wasm . + +# To compile with TinyGo, if your code is compatible +GOOS=js GOARCH=wasm tinygo build -o server.wasm . +``` + +### Step 2: Create ServiceWorker file + +First, check the version of Go/TinyGo you compiled your wasm with: + +```sh +$ go version +go version go1.23.4 darwin/arm64 +# ^------^ + +$ tinygo version +tinygo version 0.35.0 darwin/arm64 (using go version go1.23.4 and LLVM version 18.1.2) +# ^----^ +``` + +Create a ServiceWorker file with the following code: + +πŸ“„ `sw.js` +```js +// Note the 'go.1.23.4' below, that matches the version you just found: +importScripts('https://cdn.jsdelivr.net/gh/golang/go@go1.23.4/misc/wasm/wasm_exec.js') +// If you compiled with TinyGo then, similarly, use: +importScripts('https://cdn.jsdelivr.net/gh/tinygo-org/tinygo@0.35.0/targets/wasm_exec.js') + +importScripts('https://cdn.jsdelivr.net/gh/nlepage/go-wasm-http-server@v2.2.1/sw.js') + +registerWasmHTTPListener('path/to/server.wasm') +``` + +By default the server will deploy at the ServiceWorker's scope root, check [`registerWasmHTTPListener()`'s API](https://github.com/nlepage/go-wasm-http-server#registerwasmhttplistenerwasmurl-options) for more information. + +You may want to add these additional event listeners in your ServiceWorker: + +```js +// Skip installed stage and jump to activating stage +addEventListener('install', (event) => { + event.waitUntil(skipWaiting()) +}) + +// Start controlling clients as soon as the SW is activated +addEventListener('activate', event => { + event.waitUntil(clients.claim()) +}) +``` + +### Step 3: Register the ServiceWorker + +In your web page(s), register the ServiceWorker: + +```html + +``` + +Now your web page(s) may start fetching from the server: + +```js +// The server will receive a request for "/path/to/resource" +fetch('server/path/to/resource').then(res => { + // use response... +}) +``` + +## API + +For Go API see [pkg.go.dev/github.com/nlepage/go-wasm-http-server](https://pkg.go.dev/github.com/nlepage/go-wasm-http-server#section-documentation) + +### JavaScript API + +### `registerWasmHTTPListener(wasmUrl, options)` + +Instantiates and runs the WebAssembly module at `wasmUrl`, and registers a fetch listener forwarding requests to the WebAssembly module's server. + +⚠ This function must be called only once in a ServiceWorker, if you want to register several servers you must use several ServiceWorkers. + +The server will be "deployed" at the root of the ServiceWorker's scope by default, `base` may be used to deploy the server at a subpath of the scope. + +See [ServiceWorkerContainer.register()](https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register) for more information about the scope of a ServiceWorker. + +#### `wasmUrl` + +URL string of the WebAssembly module, example: `"path/to/my-module.wasm"`. + +#### `options` + +An optional object containing: + +- `base` (`string`): Base path of the server, relative to the ServiceWorker's scope. +- `cacheName` (`string`): Name of the [Cache](https://developer.mozilla.org/en-US/docs/Web/API/Cache) to store the WebAssembly binary. +- `args` (`string[]`): Arguments for the WebAssembly module. +- `passthrough` (`(request: Request): boolean`): Optional callback to allow passing the request through to network. + +## FAQ ❓ + +### Are WebSockets supported? + +No, WebSockets aren’t and won’t be supported, because Service Workers cannot intercept websocket connections. + +However [Server Sent Events](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events), which is an alternative to WebSockets, are supported, you can find the code for an example [here](https://github.com/nlepage/go-wasm-http-server/tree/master/docs/hello-sse) and the demo [here](https://nlepage.github.io/go-wasm-http-server/hello-sse/). + +### Is it compatible with TinyGo? + +Yes, an example and some specific information is available [here](https://github.com/nlepage/go-wasm-http-server/tree/master/docs/tinygo). + +## Contributors ✨ + +Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)): + + + + + + + + + + + +
JP Hastings-Edrei
JP Hastings-Edrei
πŸ’» πŸ“– πŸ’‘		Eli Davis
Eli Davis
πŸ’» πŸ›
+ + + + + + +This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome! + +## 🀝 Contributing + +Contributions, issues and feature requests are welcome!
Feel free to check [issues page](https://github.com/nlepage/go-wasm-http-server/issues). + +## Show your support + +Give a ⭐️ if this project helped you! + +## πŸ“ License + +Copyright Β© 2025 [Nicolas Lepage](https://github.com/nlepage).
+This project is [Apache 2.0](https://github.com/nlepage/go-wasm-http-server/blob/master/LICENSE) licensed. + +*** +_This README was generated with ❀️ by [readme-md-generator](https://github.com/kefranabg/readme-md-generator)_ diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/jstype/types.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/jstype/types.go new file mode 100644 index 0000000..71cb0b5 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/jstype/types.go @@ -0,0 +1,13 @@ +package jstype + +import ( + "syscall/js" + + "github.com/nlepage/go-wasm-http-server/v2/internal/safejs" +) + +var ( + ReadableStream = safejs.Safe(js.Global().Get("ReadableStream")) + Response = safejs.Safe(js.Global().Get("Response")) + Uint8Array = safejs.Safe(js.Global().Get("Uint8Array")) +) diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/readablestream/reader.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/readablestream/reader.go new file mode 100644 index 0000000..1842d4d --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/readablestream/reader.go @@ -0,0 +1,96 @@ +package readablestream + +import ( + "io" + + promise "github.com/nlepage/go-js-promise" + + "github.com/nlepage/go-wasm-http-server/v2/internal/safejs" +) + +type Reader struct { + value safejs.Value + buf []byte + off int +} + +var _ io.ReadCloser = (*Reader)(nil) + +func NewReader(r safejs.Value) *Reader { + return &Reader{ + value: r, + } +} + +func (r *Reader) Read(p []byte) (int, error) { + if r.off < len(r.buf) { + n := copy(p, r.buf[r.off:]) + + r.off += n + + return n, nil + } + + r.off = 0 + + pRes, err := r.value.Call("read") + if err != nil { + return 0, err + } + + ures, err := promise.Await(safejs.Unsafe(pRes)) + if err != nil { + return 0, err + } + + res := safejs.Safe(ures) + + done, err := res.GetBool("done") + if err != nil { + return 0, err + } + if done { + return 0, io.EOF + } + + value, err := res.Get("value") + if err != nil { + return 0, err + } + + l, err := value.GetInt("length") + if err != nil { + return 0, err + } + + if cap(r.buf) < l { + r.buf = make([]byte, l) + } + if len(r.buf) < cap(r.buf) { + r.buf = r.buf[:cap(r.buf)] + } + + n, err := safejs.CopyBytesToGo(r.buf, value) + if err != nil { + return 0, err + } + + r.buf = r.buf[:n] + + n = copy(p, r.buf[r.off:]) + + r.off += n + + return n, nil +} + +func (r *Reader) Close() error { + p, err := r.value.Call("cancel") + if err != nil { + return err + } + + _, err = promise.Await(safejs.Unsafe(p)) + + return err +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/readablestream/writer.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/readablestream/writer.go new file mode 100644 index 0000000..9484249 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/readablestream/writer.go @@ -0,0 +1,101 @@ +package readablestream + +import ( + "context" + "io" + + "github.com/nlepage/go-wasm-http-server/v2/internal/jstype" + "github.com/nlepage/go-wasm-http-server/v2/internal/safejs" +) + +type Writer struct { + Value safejs.Value + controller safejs.Value + ctx context.Context + cancelled bool +} + +var _ io.WriteCloser = (*Writer)(nil) + +func NewWriter() (*Writer, error) { + var rs *Writer + + var start safejs.Func + var controller safejs.Value + + start, err := safejs.FuncOf(func(_ safejs.Value, args []safejs.Value) any { + defer start.Release() + controller = args[0] + return nil + }) + if err != nil { + return nil, err + } + + var cancel safejs.Func + ctx, cancelCtx := context.WithCancel(context.Background()) + + cancel, err = safejs.FuncOf(func(_ safejs.Value, _ []safejs.Value) any { + defer cancel.Release() + rs.cancelled = true + cancelCtx() + return nil + }) + if err != nil { + return nil, err + } + + source, err := safejs.ValueOf(map[string]any{ + "start": safejs.Unsafe(start.Value()), + "cancel": safejs.Unsafe(cancel.Value()), + }) + if err != nil { + return nil, err + } + + value, err := jstype.ReadableStream.New(source) + if err != nil { + return nil, err + } + + rs = &Writer{ + Value: value, + controller: controller, + ctx: ctx, + } + + return rs, nil +} + +func (rs *Writer) Write(b []byte) (int, error) { + if rs.cancelled { + return 0, nil + } + + chunk, err := jstype.Uint8Array.New(len(b)) // FIXME reuse same Uint8Array? + if err != nil { + return 0, err + } + + n, err := safejs.CopyBytesToJS(chunk, b) + if err != nil { + return 0, err + } + + _, err = rs.controller.Call("enqueue", chunk) + + return n, err +} + +func (rs *Writer) Close() error { + if rs.cancelled { + return nil + } + + _, err := rs.controller.Call("close") + return err +} + +func (rs *Writer) Context() context.Context { + return rs.ctx +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/bytes.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/bytes.go new file mode 100644 index 0000000..f6087d5 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/bytes.go @@ -0,0 +1,11 @@ +package safejs + +import "github.com/hack-pad/safejs" + +func CopyBytesToGo(dst []byte, src Value) (int, error) { + return safejs.CopyBytesToGo(dst, safejs.Value(src)) +} + +func CopyBytesToJS(dst Value, src []byte) (int, error) { + return safejs.CopyBytesToJS(safejs.Value(dst), src) +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/func.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/func.go new file mode 100644 index 0000000..dc0b141 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/func.go @@ -0,0 +1,26 @@ +package safejs + +import ( + "github.com/hack-pad/safejs" +) + +type Func safejs.Func + +func FuncOf(fn func(this Value, args []Value) any) (Func, error) { + r, err := safejs.FuncOf(func(this safejs.Value, args []safejs.Value) any { + args2 := make([]Value, len(args)) + for i, v := range args { + args2[i] = Value(v) + } + return fn(Value(this), []Value(args2)) + }) + return Func(r), err +} + +func (f Func) Release() { + safejs.Func(f).Release() +} + +func (f Func) Value() Value { + return Value(safejs.Func(f).Value()) +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/value.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/value.go new file mode 100644 index 0000000..1c93691 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/internal/safejs/value.go @@ -0,0 +1,111 @@ +package safejs + +import ( + "syscall/js" + + "github.com/hack-pad/safejs" +) + +type Value safejs.Value + +func Safe(v js.Value) Value { + return Value(safejs.Safe(v)) +} + +func Unsafe(v Value) js.Value { + return safejs.Unsafe(safejs.Value(v)) +} + +func ValueOf(value any) (Value, error) { + v, err := safejs.ValueOf(value) + return Value(v), err +} + +func (v Value) Call(m string, args ...any) (Value, error) { + args = toJSValue(args).([]any) + r, err := safejs.Value(v).Call(m, args...) + return Value(r), err +} + +func (v Value) Get(p string) (Value, error) { + r, err := safejs.Value(v).Get(p) + return Value(r), err +} + +func (v Value) GetBool(p string) (bool, error) { + bv, err := v.Get(p) + if err != nil { + return false, err + } + + return safejs.Value(bv).Bool() +} + +func (v Value) GetInt(p string) (int, error) { + iv, err := v.Get(p) + if err != nil { + return 0, err + } + + return safejs.Value(iv).Int() +} + +func (v Value) GetString(p string) (string, error) { + sv, err := v.Get(p) + if err != nil { + return "", err + } + + return safejs.Value(sv).String() +} + +func (v Value) Index(i int) (Value, error) { + r, err := safejs.Value(v).Index(i) + return Value(r), err +} + +func (v Value) IndexString(i int) (string, error) { + sv, err := v.Index(i) + if err != nil { + return 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"dependencies": { + "cliui": "^6.0.0", + "decamelize": "^1.2.0", + "find-up": "^4.1.0", + "get-caller-file": "^2.0.1", + "require-directory": "^2.1.1", + "require-main-filename": "^2.0.0", + "set-blocking": "^2.0.0", + "string-width": "^4.2.0", + "which-module": "^2.0.0", + "y18n": "^4.0.0", + "yargs-parser": "^18.1.2" + }, + "engines": { + "node": ">=8" + } + }, + "node_modules/yargs-parser": { + "version": "18.1.3", + "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.3.tgz", + "integrity": "sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==", + "dev": true, + "license": "ISC", + "dependencies": { + "camelcase": "^5.0.0", + "decamelize": "^1.2.0" + }, + "engines": { + "node": ">=6" + } + } + } +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/package.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/package.go new file mode 100644 index 0000000..f6b59f7 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/package.go @@ -0,0 +1,2 @@ +// Package wasmhttp allows to create a WebAssembly Go HTTP Server embedded in a ServiceWorker. +package wasmhttp diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/package.json b/vendor/github.com/nlepage/go-wasm-http-server/v2/package.json new file mode 100644 index 0000000..7756b34 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/package.json @@ -0,0 +1,12 @@ +{ + "name": "go-wasm-http-server", + "version": "0.1.0", + "description": "WebAssembly Go HTTP Server embedded in a ServiceWorker", + "main": "index.js", + "repository": "https://github.com/nlepage/go-wasm-http-server", + "author": "Nicolas Lepage <19571875+nlepage@users.noreply.github.com>", + "license": "Apache-2.0", + "devDependencies": { + "all-contributors-cli": "^6.26.1" + } +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/request.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/request.go new file mode 100644 index 0000000..63de281 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/request.go @@ -0,0 +1,119 @@ +package wasmhttp + +import ( + "io" + "net/http" + "net/url" + "syscall/js" + + promise "github.com/nlepage/go-js-promise" + "github.com/nlepage/go-wasm-http-server/v2/internal/readablestream" + "github.com/nlepage/go-wasm-http-server/v2/internal/safejs" +) + +// Request builds and returns the equivalent http.Request +func Request(uvalue js.Value) (*http.Request, error) { + value := safejs.Safe(uvalue) + + method, err := value.GetString("method") + if err != nil { + return nil, err + } + + rawURL, err := value.GetString("url") + if err != nil { + return nil, err + } + u, err := url.Parse(rawURL) + if err != nil { + return nil, err + } + + body, err := value.Get("body") + if err != nil { + return nil, err + } + + var bodyReader io.ReadCloser + + if !body.IsNull() { + // WORKAROUND: Firefox does not have request.body ReadableStream + if body.IsUndefined() { + blobp, err := value.Call("blob") + if err != nil { + return nil, err + } + + blob, err := promise.Await(safejs.Unsafe(blobp)) + if err != nil { + return nil, err + } + + body, err = safejs.Safe(blob).Call("stream") + if err != nil { + return nil, err + } + } + + r, err := body.Call("getReader") + if err != nil { + return nil, err + } + + bodyReader = readablestream.NewReader(r) + } + + req := &http.Request{ + Method: method, + URL: u, + Body: bodyReader, + Header: make(http.Header), + Proto: "HTTP/1.1", + ProtoMajor: 1, + ProtoMinor: 1, + } + + headers, err := value.Get("headers") + if err != nil { + return nil, err + } + + headersIt, err := headers.Call("entries") + if err != nil { + return nil, err + } + for { + e, err := headersIt.Call("next") + if err != nil { + return nil, err + } + + done, err := e.GetBool("done") + if err != nil { + return nil, err + } + + if done { + break + } + + v, err := e.Get("value") + if err != nil { + return nil, err + } + + key, err := v.IndexString(0) + if err != nil { + return nil, err + } + + value, err := v.IndexString(1) + if err != nil { + return nil, err + } + + req.Header.Set(key, value) + } + + return req, nil +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/response.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/response.go new file mode 100644 index 0000000..0d878e2 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/response.go @@ -0,0 +1,178 @@ +package wasmhttp + +import ( + "bufio" + "context" + "fmt" + "io" + "log/slog" + "net/http" + "syscall/js" + + promise "github.com/nlepage/go-js-promise" + + "github.com/nlepage/go-wasm-http-server/v2/internal/jstype" + "github.com/nlepage/go-wasm-http-server/v2/internal/readablestream" + "github.com/nlepage/go-wasm-http-server/v2/internal/safejs" +) + +type Response interface { + http.ResponseWriter + io.StringWriter + http.Flusher + io.Closer + Context() context.Context + WriteError(string) + JSValue() js.Value +} + +type response struct { + header http.Header + wroteHeader bool + + promise js.Value + resolve func(any) + + rs *readablestream.Writer + body *bufio.Writer +} + +func NewResponse() (Response, error) { + rs, err := readablestream.NewWriter() + if err != nil { + return nil, err + } + + promise, resolve, _ := promise.New() + + return &response{ + promise: promise, + resolve: resolve, + + rs: rs, + body: bufio.NewWriter(rs), + }, nil +} + +var _ Response = (*response)(nil) + +// Header implements [http.ResponseWriter]. +func (r *response) Header() http.Header { + if r.header == nil { + r.header = make(http.Header) + } + return r.header +} + +func (r *response) headerValue() map[string]any { + h := r.Header() + hh := make(map[string]any, len(h)+1) + for k := range h { + hh[k] = h.Get(k) + } + return hh +} + +// Write implements http.ResponseWriter. +func (r *response) Write(buf []byte) (int, error) { + r.writeHeader(buf, "") + return r.body.Write(buf) +} + +// WriteHeader implements [http.ResponseWriter]. +func (r *response) WriteHeader(code int) { + if r.wroteHeader { + return + } + + checkWriteHeaderCode(code) + + init, err := safejs.ValueOf(map[string]any{ + "status": code, + "headers": r.headerValue(), + }) + if err != nil { + panic(err) + } + + res, err := jstype.Response.New(r.rs.Value, init) + if err != nil { + panic(err) + } + + r.wroteHeader = true + + r.resolve(safejs.Unsafe(res)) +} + +// WriteString implements [io.StringWriter]. +func (r *response) WriteString(str string) (int, error) { + r.writeHeader(nil, str) + return r.body.WriteString(str) +} + +// Flush implements [http.Flusher] +func (r *response) Flush() { + if !r.wroteHeader { + r.WriteHeader(200) + } + if err := r.body.Flush(); err != nil { + panic(err) + } +} + +// Close implements [io.Closer] +func (r *response) Close() error { + if !r.wroteHeader { + r.WriteHeader(200) + } + if err := r.body.Flush(); err != nil { + return err + } + return r.rs.Close() +} + +func (r *response) Context() context.Context { + return r.rs.Context() +} + +func (r *response) WriteError(str string) { + slog.Error(str) + if !r.wroteHeader { + r.Header().Set("Content-Type", "text/plain") + r.WriteHeader(500) + _, _ = r.WriteString(str) + } +} + +func (r *response) JSValue() js.Value { + return r.promise +} + +func (r *response) writeHeader(b []byte, str string) { + if r.wroteHeader { + return + } + + m := r.Header() + + _, hasType := m["Content-Type"] + hasTE := m.Get("Transfer-Encoding") != "" + if !hasType && !hasTE { + if b == nil { + if len(str) > 512 { + str = str[:512] + } + b = []byte(str) + } + m.Set("Content-Type", http.DetectContentType(b)) + } + + r.WriteHeader(200) +} + +func checkWriteHeaderCode(code int) { + if code < 100 || code > 999 { + panic(fmt.Sprintf("invalid WriteHeader code %v", code)) + } +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/serve.go b/vendor/github.com/nlepage/go-wasm-http-server/v2/serve.go new file mode 100644 index 0000000..f4869d5 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/serve.go @@ -0,0 +1,86 @@ +package wasmhttp + +import ( + "context" + "fmt" + "net/http" + "strings" + "syscall/js" + + "github.com/nlepage/go-wasm-http-server/v2/internal/safejs" +) + +var ( + wasmhttp = safejs.Safe(js.Global().Get("wasmhttp")) +) + +// Serve serves HTTP requests using handler or http.DefaultServeMux if handler is nil. +func Serve(handler http.Handler) (func(), error) { + h := handler + if h == nil { + h = http.DefaultServeMux + } + + prefix, err := wasmhttp.GetString("path") + if err != nil { + return nil, err + } + + for strings.HasSuffix(prefix, "/") { + prefix = strings.TrimSuffix(prefix, "/") + } + + if prefix != "" { + mux := http.NewServeMux() + mux.Handle(prefix+"/", http.StripPrefix(prefix, h)) + h = mux + } + + handlerValue, err := safejs.FuncOf(func(_ safejs.Value, args []safejs.Value) interface{} { + res, err := NewResponse() + if err != nil { + panic(err) + } + + go func() { + ctx, cancel := context.WithCancel(res.Context()) + + defer func() { + cancel() + }() + + defer func() { + if err := res.Close(); err != nil { + panic(err) + } + }() + + defer func() { + if r := recover(); r != nil { + res.WriteError(fmt.Sprintf("%+v", r)) + } + }() + + req, err := Request(safejs.Unsafe(args[0])) + if err != nil { + res.WriteError(fmt.Sprintf("%+v", err)) + return + } + + req = req.WithContext(ctx) + + h.ServeHTTP(res, req) + }() + + return res.JSValue() + }) + if err != nil { + return nil, err + } + + if _, err = wasmhttp.Call("setHandler", handlerValue); err != nil { + return nil, err + } + + return handlerValue.Release, nil +} diff --git a/vendor/github.com/nlepage/go-wasm-http-server/v2/sw.js b/vendor/github.com/nlepage/go-wasm-http-server/v2/sw.js new file mode 100644 index 0000000..11e0ae0 --- /dev/null +++ b/vendor/github.com/nlepage/go-wasm-http-server/v2/sw.js @@ -0,0 +1,42 @@ +function registerWasmHTTPListener(wasm, { base, cacheName, passthrough, args = [] } = {}) { + let path = new URL(registration.scope).pathname + if (base && base !== '') path = `${trimEnd(path, '/')}/${trimStart(base, '/')}` + + const handlerPromise = new Promise(setHandler => { + self.wasmhttp = { + path, + setHandler, + } + }) + + const go = new Go() + go.argv = [wasm, ...args] + const source = cacheName + ? caches.open(cacheName).then((cache) => cache.match(wasm)).then((response) => response ?? fetch(wasm)) + : caches.match(wasm).then(response => (response) ?? fetch(wasm)) + WebAssembly.instantiateStreaming(source, go.importObject).then(({ instance }) => go.run(instance)) + + addEventListener('fetch', e => { + if (passthrough?.(e.request)) { + e.respondWith(fetch(e.request)) + return; + } + + const { pathname } = new URL(e.request.url) + if (!pathname.startsWith(path)) return + + e.respondWith(handlerPromise.then(handler => handler(e.request))) + }) +} + +function trimStart(s, c) { + let r = s + while (r.startsWith(c)) r = r.slice(c.length) + return r +} + +function trimEnd(s, c) { + let r = s + while (r.endsWith(c)) r = r.slice(0, -c.length) + return r +} diff --git a/vendor/modules.txt b/vendor/modules.txt index b3d6f2e..22f070a 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -1,6 +1,23 @@ +## workspace +# github.com/hack-pad/safejs v0.1.1 +## explicit; go 1.18 +github.com/hack-pad/safejs +github.com/hack-pad/safejs/internal/catch +github.com/hack-pad/safejs/internal/stackerr # github.com/mdm-code/scanner v1.2.1 ## explicit; go 1.21 github.com/mdm-code/scanner +# github.com/mdm-code/tq/v2 v2.4.0 +## explicit; go 1.24 +# github.com/nlepage/go-js-promise v1.0.0 +## explicit; go 1.12 +github.com/nlepage/go-js-promise +# github.com/nlepage/go-wasm-http-server/v2 v2.2.1 +## explicit; go 1.18 +github.com/nlepage/go-wasm-http-server/v2 +github.com/nlepage/go-wasm-http-server/v2/internal/jstype +github.com/nlepage/go-wasm-http-server/v2/internal/readablestream +github.com/nlepage/go-wasm-http-server/v2/internal/safejs # github.com/pelletier/go-toml/v2 v2.1.0 ## explicit; go 1.16 github.com/pelletier/go-toml/v2 @@ -8,3 +25,5 @@ github.com/pelletier/go-toml/v2/internal/characters github.com/pelletier/go-toml/v2/internal/danger github.com/pelletier/go-toml/v2/internal/tracker github.com/pelletier/go-toml/v2/unstable +# github.com/stretchr/testify v1.10.0 +## explicit; go 1.17