ntfy/web/src/components/ErrorBoundary.js

import * as React from "react";
import StackTrace from "stacktrace-js";
import {CircularProgress, Link} from "@mui/material";
import Button from "@mui/material/Button";
import {Trans, withTranslation} from "react-i18next";

class ErrorBoundaryImpl extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            error: false,
            originalStack: null,
            niceStack: null
        };
    }

    componentDidCatch(error, info) {
        console.error("[ErrorBoundary] Error caught", error, info);

        // Immediately render original stack trace
        const prettierOriginalStack = info.componentStack
            .trim()
            .split("\n")
            .map(line => `  at ${line}`)
            .join("\n");
        this.setState({
            error: true,
            originalStack: `${error.toString()}\n${prettierOriginalStack}`
        });

        // Fetch additional info and a better stack trace
        StackTrace.fromError(error).then(stack => {
            console.error("[ErrorBoundary] Stacktrace fetched", stack);
            const niceStack = `${error.toString()}\n` + stack.map( el => `  at ${el.functionName} (${el.fileName}:${el.columnNumber}:${el.lineNumber})`).join("\n");
            this.setState({ niceStack });
        });
    }

    copyStack() {
        let stack = "";
        if (this.state.niceStack) {
            stack += `${this.state.niceStack}\n\n`;
        }
        stack += `${this.state.originalStack}\n`;
        navigator.clipboard.writeText(stack);
    }

    render() {
        const { t } = this.props;
        if (this.state.error) {
            return (
                <div style={{margin: '20px'}}>
                    <h2>{t("error_boundary_title")} 😮</h2>
                    <p>
                        <Trans
                            i18nKey="error_boundary_description"
                            components={{
                                githubLink: <Link href="https://github.com/binwiederhier/ntfy/issues"/>,
                                discordLink: <Link href="https://discord.gg/cT7ECsZj9w"/>,
                                matrixLink: <Link href="https://matrix.to/#/#ntfy:matrix.org"/>
                            }}
                        />
                    </p>
                    <p>
                        <Button variant="outlined" onClick={() => this.copyStack()}>{t("error_boundary_button_copy_stack_trace")}</Button>
                    </p>
                    <h3>{t("error_boundary_stack_trace")}</h3>
                    {this.state.niceStack
                        ? <pre>{this.state.niceStack}</pre>
                        : <><CircularProgress size="20px" sx={{verticalAlign: "text-bottom"}}/> {t("error_boundary_gathering_info")}</>}
                    <pre>{this.state.originalStack}</pre>
                </div>
            );
        }
        return this.props.children;
    }
}

const ErrorBoundary = withTranslation()(ErrorBoundaryImpl); // Adds props.t
export default ErrorBoundary;