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-rw-r--r--src/components/PatchHelper.tsx279
1 files changed, 279 insertions, 0 deletions
diff --git a/src/components/PatchHelper.tsx b/src/components/PatchHelper.tsx
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+++ b/src/components/PatchHelper.tsx
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+/*
+ * Vencord, a modification for Discord's desktop app
+ * Copyright (c) 2022 Vendicated and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { makeCodeblock } from "../utils";
+import { debounce } from "../utils/debounce";
+import { Button, Clipboard, Forms, Margins, Parser, React, Switch, TextInput } from "../webpack/common";
+import { search } from "../webpack/webpack";
+import { CheckedTextInput } from "./CheckedTextInput";
+import ErrorBoundary from "./ErrorBoundary";
+
+// Do not include diff in non dev builds (side effects import)
+if (IS_DEV) {
+ var differ = require("diff") as typeof import("diff");
+}
+
+const findCandidates = debounce(function ({ find, setModule, setError }) {
+ const candidates = search(find);
+ const keys = Object.keys(candidates);
+ const len = keys.length;
+ if (len === 0)
+ setError("No match. Perhaps that module is lazy loaded?");
+ else if (len !== 1)
+ setError("Multiple matches. Please refine your filter");
+ else
+ setModule([keys[0], candidates[keys[0]]]);
+});
+
+function ReplacementComponent({ module, match, replacement, setReplacementError }) {
+ const [id, fact] = module;
+ const [compileResult, setCompileResult] = React.useState<[boolean, string]>();
+
+ const [patchedCode, matchResult, diff] = React.useMemo(() => {
+ const src: string = fact.toString().replaceAll("\n", "");
+ try {
+ var patched = src.replace(match, replacement);
+ setReplacementError(void 0);
+ } catch (e) {
+ setReplacementError((e as Error).message);
+ return ["", [], []];
+ }
+ const m = src.match(match);
+ return [patched, m, makeDiff(src, patched, m)];
+ }, [id, match, replacement]);
+
+ function makeDiff(original: string, patched: string, match: RegExpMatchArray | null) {
+ if (!match || original === patched) return null;
+
+ const changeSize = patched.length - original.length;
+
+ // Use 200 surrounding characters of context
+ const start = Math.max(0, match.index! - 200);
+ const end = Math.min(original.length, match.index! + match[0].length + 200);
+ // (changeSize may be negative)
+ const endPatched = end + changeSize;
+
+ const context = original.slice(start, end);
+ const patchedContext = patched.slice(start, endPatched);
+
+ return differ.diffWordsWithSpace(context, patchedContext);
+ }
+
+ function renderMatch() {
+ if (!matchResult)
+ return <Forms.FormText>Regex doesn't match!</Forms.FormText>;
+
+ const fullMatch = matchResult[0] ? makeCodeblock(matchResult[0], "js") : "";
+ const groups = matchResult.length > 1
+ ? makeCodeblock(matchResult.slice(1).map((g, i) => `Group ${i}: ${g}`).join("\n"), "yml")
+ : "";
+
+ return (
+ <>
+ {Parser.parse(fullMatch)}
+ {Parser.parse(groups)}
+ </>
+ );
+ }
+
+ function renderDiff() {
+ return diff?.map(p => {
+ const color = p.added ? "lime" : p.removed ? "red" : "grey";
+ return <span style={{ color }}>{p.value}</span>;
+ });
+ }
+
+ return (
+ <>
+ <Forms.FormTitle>Module {id}</Forms.FormTitle>
+
+ {!!matchResult?.[0]?.length && (
+ <>
+ <Forms.FormTitle>Match</Forms.FormTitle>
+ {renderMatch()}
+ </>)
+ }
+
+ {!!diff?.length && (
+ <>
+ <Forms.FormTitle>Diff</Forms.FormTitle>
+ {renderDiff()}
+ </>
+ )}
+
+ {!!diff?.length && (
+ <Button className={Margins.marginTop20} onClick={() => {
+ try {
+ Function(patchedCode);
+ setCompileResult([true, "Compiled successfully"]);
+ } catch (err) {
+ setCompileResult([false, (err as Error).message]);
+ }
+ }}>Compile</Button>
+ )}
+
+ {compileResult &&
+ <Forms.FormText style={{ color: compileResult[0] ? "var(--text-positive)" : "var(--text-danger)" }}>
+ {compileResult[1]}
+ </Forms.FormText>
+ }
+ </>
+ );
+}
+
+function ReplacementInput({ replacement, setReplacement, replacementError }) {
+ const [isFunc, setIsFunc] = React.useState(false);
+ const [error, setError] = React.useState<string>();
+
+ function onChange(v: string) {
+ setError(void 0);
+
+ if (isFunc) {
+ try {
+ const func = (0, eval)(v);
+ if (typeof func === "function")
+ setReplacement(() => func);
+ else
+ setError("Replacement must be a function");
+ } catch (e) {
+ setReplacement(v);
+ setError((e as Error).message);
+ }
+ } else {
+ setReplacement(v);
+ }
+ }
+
+ React.useEffect(
+ () => void (isFunc ? onChange(replacement) : setError(void 0)),
+ [isFunc]
+ );
+
+ return (
+ <>
+ <Forms.FormTitle>replacement</Forms.FormTitle>
+ <TextInput
+ value={replacement?.toString()}
+ onChange={onChange}
+ error={error ?? replacementError}
+ />
+
+ <Switch
+ className={Margins.marginTop8}
+ value={isFunc}
+ onChange={setIsFunc}
+ note="'replacement' will be evaled if this is toggled"
+ hideBorder={true}
+ >
+ Treat as Function
+ </Switch>
+ </>
+ );
+}
+
+function PatchHelper() {
+ const [find, setFind] = React.useState<string>("");
+ const [match, setMatch] = React.useState<string>("");
+ const [replacement, setReplacement] = React.useState<string | Function>("");
+
+ const [replacementError, setReplacementError] = React.useState<string>();
+
+ const [module, setModule] = React.useState<[number, Function]>();
+ const [findError, setFindError] = React.useState<string>();
+
+ const code = React.useMemo(() => {
+ return `
+{
+ find: ${JSON.stringify(find)},
+ replacement: {
+ match: /${match.replace(/(?<!\\)\//g, "\\/")}/,
+ replacement: ${typeof replacement === "function" ? replacement.toString() : JSON.stringify(replacement)}
+ }
+}
+ `.trim();
+ }, [find, match, replacement]);
+
+ function onFindChange(v: string) {
+ setFindError(void 0);
+ setFind(v);
+ if (v.length) {
+ findCandidates({ find: v, setModule, setError: setFindError });
+ }
+ }
+
+ function onMatchChange(v: string) {
+ try {
+ new RegExp(v);
+ setFindError(void 0);
+ setMatch(v);
+ } catch (e: any) {
+ setFindError((e as Error).message);
+ }
+ }
+
+ return (
+ <>
+ <Forms.FormTitle>find</Forms.FormTitle>
+ <TextInput
+ type="text"
+ value={find}
+ onChange={onFindChange}
+ error={findError}
+ />
+
+ <Forms.FormTitle>match</Forms.FormTitle>
+ <CheckedTextInput
+ value={match}
+ onChange={onMatchChange}
+ validate={v => {
+ try {
+ return (new RegExp(v), true);
+ } catch (e) {
+ return (e as Error).message;
+ }
+ }}
+ />
+
+ <ReplacementInput
+ replacement={replacement}
+ setReplacement={setReplacement}
+ replacementError={replacementError}
+ />
+
+ <Forms.FormDivider />
+ {module && (
+ <ReplacementComponent
+ module={module}
+ match={new RegExp(match)}
+ replacement={replacement}
+ setReplacementError={setReplacementError}
+ />
+ )}
+
+ {!!(find && match && replacement) && (
+ <>
+ <Forms.FormTitle className={Margins.marginTop20}>Code</Forms.FormTitle>
+ {Parser.parse(makeCodeblock(code, "ts"))}
+ <Button onClick={() => Clipboard.copy(code)}>Copy to Clipboard</Button>
+ </>
+ )}
+ </>
+ );
+}
+
+export default IS_DEV ? ErrorBoundary.wrap(PatchHelper) : null;
generated by cgit (git 2.46.0) at 2024-11-22 14:20:49 +0000