Use Node.js instead
This commit is contained in:
parent
c3f8ed8ee4
commit
ad0ef24257
4
.gitignore
vendored
4
.gitignore
vendored
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@ -1,3 +1,3 @@
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zig-cache
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zig-out
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node_modules/
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*.html
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3
.gitmodules
vendored
3
.gitmodules
vendored
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@ -1,3 +0,0 @@
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[submodule "rem"]
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path = rem
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url = https://github.com/chwayne/rem
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40
build.zig
40
build.zig
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@ -1,40 +0,0 @@
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const std = @import("std");
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pub fn build(b: *std.build.Builder) void {
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const rem_pkg = std.build.Pkg{
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.name = "rem",
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.source = .{ .path = "./rem/rem.zig" },
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};
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// Standard target options allows the person running `zig build` to choose
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// what target to build for. Here we do not override the defaults, which
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// means any target is allowed, and the default is native. Other options
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// for restricting supported target set are available.
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const target = b.standardTargetOptions(.{});
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// Standard release options allow the person running `zig build` to select
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// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
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const mode = b.standardReleaseOptions();
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const exe = b.addExecutable("site-analyzer", "src/main.zig");
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exe.setTarget(target);
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exe.setBuildMode(mode);
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exe.addPackage(rem_pkg);
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exe.install();
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const run_cmd = exe.run();
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run_cmd.step.dependOn(b.getInstallStep());
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if (b.args) |args| {
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run_cmd.addArgs(args);
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}
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const run_step = b.step("run", "Run the app");
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run_step.dependOn(&run_cmd.step);
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const exe_tests = b.addTest("src/main.zig");
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exe_tests.setTarget(target);
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exe_tests.setBuildMode(mode);
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const test_step = b.step("test", "Run unit tests");
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test_step.dependOn(&exe_tests.step);
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}
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88
index.js
Normal file
88
index.js
Normal file
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@ -0,0 +1,88 @@
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import { Parser } from "htmlparser2";
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import { DomHandler } from "domhandler";
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import { performance } from "perf_hooks";
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const noop = () => {};
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// const log = noop;
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const { log } = console;
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function readStdin() {
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return new Promise((resolve, reject) => {
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let buffer = "";
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process.stdin.resume();
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process.stdin.on("data", (d) => (buffer = buffer.concat(d.toString())));
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process.stdin.on("close", () => resolve(buffer));
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});
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}
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const stdin = await readStdin();
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const rawHtml = stdin;
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function isHttp(url) {
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const r = /^(https?:\/\/|\/\/)/;
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return r.test(url);
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}
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function isAbsolute(url) {
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return url.startsWith("/");
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}
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function getHtml(el) {
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// return rawHtml.slice(el.startIndex, el.endIndex);
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let text = "";
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for (const child of el.children) {
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if (child.type === "text") text += child.data.trim();
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else if (child.type === "tag") text += getHtml(child);
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}
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return text;
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}
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function checkUrl(type, el, url) {
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if (isHttp(url)) {
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log(`HTTP/S ${type}:`, getHtml(el));
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} else if (isAbsolute(url)) {
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log(`Absolute ${type}:`, getHtml(el));
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}
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}
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function recursive(el) {
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if (el.name === "a") {
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if (el.attribs.href) {
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checkUrl("link", el, el.attribs.href);
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} else {
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log("Link with no href:", getHtml(el));
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}
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}
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if (["audio", "video", "img"].includes(el.name)) {
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if (el.attribs.src) {
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checkUrl(el.name, el, el.attribs.src);
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} else {
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log(`${el.name} with no src:`, getHtml(el));
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}
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}
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for (const child of el.children) {
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if (child.type === "tag") {
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recursive(child);
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}
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}
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}
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const handler = new DomHandler(
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(error, dom) => {
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if (error) {
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// TODO: Handle error
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} else {
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// for (let i = 0; i < 1000; i++) {
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console.time();
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for (const el of dom) {
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if (el.type === "tag") {
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recursive(el);
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}
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}
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console.timeEnd();
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// }
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}
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},
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{ withEndIndices: true, withStartIndices: true }
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);
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const parser = new Parser(handler);
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parser.parseComplete(rawHtml);
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21
package.json
Normal file
21
package.json
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@ -0,0 +1,21 @@
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{
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"name": "site-analyzer",
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"type": "module",
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"version": "0.0.1",
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"description": "",
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"main": "index.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"keywords": [],
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"author": "",
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"license": "ISC",
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"dependencies": {
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"domhandler": "^5.0.3",
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"htmlparser2": "^8.0.1"
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},
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"devDependencies": {
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"@types/htmlparser2": "^3.10.3",
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"@types/node": "^18.11.9"
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}
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}
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86
pnpm-lock.yaml
Normal file
86
pnpm-lock.yaml
Normal file
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lockfileVersion: 5.4
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specifiers:
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'@types/htmlparser2': ^3.10.3
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'@types/node': ^18.11.9
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domhandler: ^5.0.3
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htmlparser2: ^8.0.1
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dependencies:
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domhandler: 5.0.3
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htmlparser2: 8.0.1
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devDependencies:
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'@types/htmlparser2': 3.10.3
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'@types/node': 18.11.9
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packages:
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/@types/domutils/1.7.4:
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resolution: {integrity: sha512-w542nRQ0vpXQjLYP52LKqrugQtUq580dEDiDIyZ6IBmV8a3LXjGVNxfj/jUQxS0kDsbZAWsSxQOcTfVX3HRdwg==}
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dependencies:
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domhandler: 2.4.2
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dev: true
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/@types/htmlparser2/3.10.3:
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resolution: {integrity: sha512-XA74aD+acytofnZic9n83Rxy/IZ259299bYPx5SEyx7uymPi79lRyKDkhJlsuCaPHB7rEoTEhRN4Vm2G5WmHHg==}
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dependencies:
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'@types/domutils': 1.7.4
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'@types/node': 18.11.9
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domhandler: 2.4.2
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dev: true
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/@types/node/18.11.9:
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resolution: {integrity: sha512-CRpX21/kGdzjOpFsZSkcrXMGIBWMGNIHXXBVFSH+ggkftxg+XYP20TESbh+zFvFj3EQOl5byk0HTRn1IL6hbqg==}
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dev: true
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/dom-serializer/2.0.0:
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resolution: {integrity: sha512-wIkAryiqt/nV5EQKqQpo3SToSOV9J0DnbJqwK7Wv/Trc92zIAYZ4FlMu+JPFW1DfGFt81ZTCGgDEabffXeLyJg==}
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dependencies:
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domelementtype: 2.3.0
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domhandler: 5.0.3
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entities: 4.4.0
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dev: false
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/domelementtype/1.3.1:
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resolution: {integrity: sha512-BSKB+TSpMpFI/HOxCNr1O8aMOTZ8hT3pM3GQ0w/mWRmkhEDSFJkkyzz4XQsBV44BChwGkrDfMyjVD0eA2aFV3w==}
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dev: true
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/domelementtype/2.3.0:
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resolution: {integrity: sha512-OLETBj6w0OsagBwdXnPdN0cnMfF9opN69co+7ZrbfPGrdpPVNBUj02spi6B1N7wChLQiPn4CSH/zJvXw56gmHw==}
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dev: false
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/domhandler/2.4.2:
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resolution: {integrity: sha512-JiK04h0Ht5u/80fdLMCEmV4zkNh2BcoMFBmZ/91WtYZ8qVXSKjiw7fXMgFPnHcSZgOo3XdinHvmnDUeMf5R4wA==}
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dependencies:
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domelementtype: 1.3.1
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dev: true
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/domhandler/5.0.3:
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resolution: {integrity: sha512-cgwlv/1iFQiFnU96XXgROh8xTeetsnJiDsTc7TYCLFd9+/WNkIqPTxiM/8pSd8VIrhXGTf1Ny1q1hquVqDJB5w==}
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engines: {node: '>= 4'}
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dependencies:
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domelementtype: 2.3.0
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dev: false
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/domutils/3.0.1:
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resolution: {integrity: sha512-z08c1l761iKhDFtfXO04C7kTdPBLi41zwOZl00WS8b5eiaebNpY00HKbztwBq+e3vyqWNwWF3mP9YLUeqIrF+Q==}
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dependencies:
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dom-serializer: 2.0.0
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domelementtype: 2.3.0
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domhandler: 5.0.3
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dev: false
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/entities/4.4.0:
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resolution: {integrity: sha512-oYp7156SP8LkeGD0GF85ad1X9Ai79WtRsZ2gxJqtBuzH+98YUV6jkHEKlZkMbcrjJjIVJNIDP/3WL9wQkoPbWA==}
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engines: {node: '>=0.12'}
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dev: false
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/htmlparser2/8.0.1:
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resolution: {integrity: sha512-4lVbmc1diZC7GUJQtRQ5yBAeUCL1exyMwmForWkRLnwyzWBFxN633SALPMGYaWZvKe9j1pRZJpauvmxENSp/EA==}
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dependencies:
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domelementtype: 2.3.0
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domhandler: 5.0.3
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domutils: 3.0.1
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entities: 4.4.0
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dev: false
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1
rem
1
rem
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@ -1 +0,0 @@
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Subproject commit 53d2307030c9b9ce3501b007de86b49b0838d3ae
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87
src/main.zig
87
src/main.zig
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@ -1,87 +0,0 @@
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const std = @import("std");
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const rem = @import("rem");
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fn utf8DecodeString(allocator: std.mem.Allocator, string: []const u8) ![]u21 {
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var list = std.ArrayList(u21).init(allocator);
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errdefer list.deinit();
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var decoded_it = (try std.unicode.Utf8View.init(string)).iterator();
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while (decoded_it.nextCodepoint()) |codepoint| {
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try list.append(codepoint);
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}
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return list.toOwnedSlice();
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}
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pub fn main() !u8 {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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const string = try std.io.getStdIn().readToEndAlloc(allocator, 1024 * 1024);
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// The string must be decoded before it can be passed to the parser.
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// const input = &rem.util.utf8DecodeStringComptime(string);
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const input = try utf8DecodeString(allocator, string);
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// Create the DOM in which the parsed Document will be created.
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var dom = rem.dom.Dom{ .allocator = allocator };
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defer dom.deinit();
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var parser = try rem.Parser.init(&dom, input, allocator, .abort, false);
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defer parser.deinit();
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try parser.run();
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const errors = parser.errors();
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if (errors.len > 0) {
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std.log.err("A parsing error occured!\n{s}\n", .{@tagName(errors[0])});
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return 1;
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}
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// const writer = std.io.getStdOut().writer();
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const document = parser.getDocument();
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// try rem.util.printDocument(writer, document, &dom, allocator);
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check(document.element.?);
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return 0;
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}
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const startsWith = std.mem.startsWith;
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const startsWithIgnoreCase = std.ascii.startsWithIgnoreCase;
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fn isHttps(url: []const u8) bool {
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return startsWithIgnoreCase(url, "//") or
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startsWithIgnoreCase(url, "http://") or
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startsWithIgnoreCase(url, "https://");
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}
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fn isAbsolute(url: []const u8) bool {
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return startsWithIgnoreCase(url, "/");
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}
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fn check(element: *const rem.dom.Element) void {
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// std.log.info("{any}", .{element.element_type});
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switch (element.element_type) {
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.html_img => {
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if (element.attributes.getEntry("alt") == null) {
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std.log.err("img with no alt text", .{});
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}
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},
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.html_a => {
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if (element.attributes.getEntry("href")) |entry| {
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const href = entry.value_ptr.*;
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if (isHttps(href)) {
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std.log.warn("link to http/s: {s}", .{href});
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} else if (isAbsolute(href)) {
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std.log.warn("absolute link: {s}", .{href});
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}
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} else {
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std.log.warn("link with no href", .{});
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}
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},
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else => {},
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}
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// for (element.children.items) |child| {
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// switch (child) {
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// .element => |el| check(el),
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// .cdata => |cdata| std.log.info("cdata: {s}", .{cdata.data.items}),
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// }
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// }
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}
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