@backstage-community/plugin-rbac-backend/dist/file-permissions/lowercase-file-adapter.cjs.js

'use strict';

var casbin = require('casbin');

class LowercaseFileAdapter extends casbin.FileAdapter {
  constructor(filePath, logger) {
    super(filePath);
    this.logger = logger;
  }
  async loadPolicy(model) {
    if (!this.filePath) {
      return;
    }
    await this.loadLowercasePolicyFile(model, casbin.Helper.loadPolicyLine);
  }
  transformLineToLowercaseGroupsUsers(line) {
    if (line.trim().startsWith("g")) {
      const policyArray = line.split(",");
      if (policyArray.length >= 1 && policyArray[0].trim().startsWith("g")) {
        policyArray[1] = policyArray[1].toLocaleLowerCase("en-US");
      }
      return policyArray.join(",");
    }
    return line;
  }
  async loadLowercasePolicyFile(model, handler) {
    const bodyBuf = await (this.fs ? this.fs : casbin.mustGetDefaultFileSystem()).readFileSync(this.filePath);
    const lines = bodyBuf.toString().split("\n");
    lines.forEach((line, index) => {
      const trimmed = line.replace(/\r$/, "").trim();
      if (!trimmed || trimmed.startsWith("#")) {
        return;
      }
      const lineNumber = index + 1;
      try {
        const lowercasedLine = this.transformLineToLowercaseGroupsUsers(trimmed);
        handler(lowercasedLine, model);
      } catch (error) {
        const message = error instanceof Error ? error.message : String(error);
        this.logger?.debug(
          `Skipping invalid policy line ${lineNumber} in ${this.filePath} while loading Casbin model: ${message}; line=${trimmed.slice(
            0,
            120
          )}`
        );
      }
    });
  }
}

exports.LowercaseFileAdapter = LowercaseFileAdapter;
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