{"id":21585082,"url":"https://github.com/vsevex/dnsolve","last_synced_at":"2026-01-27T10:18:31.133Z","repository":{"id":196647723,"uuid":"696908495","full_name":"vsevex/dnsolve","owner":"vsevex","description":"Pure Dart library that provides an easy way to perform DNS lookups.","archived":false,"fork":false,"pushed_at":"2025-03-11T09:36:15.000Z","size":26,"stargazers_count":3,"open_issues_count":1,"forks_count":1,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-04-04T04:51:11.347Z","etag":null,"topics":["dart3","dns","http"],"latest_commit_sha":null,"homepage":"","language":"Dart","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/vsevex.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGELOG.md","contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2023-09-26T16:58:09.000Z","updated_at":"2025-03-11T09:36:19.000Z","dependencies_parsed_at":"2024-01-21T21:50:16.197Z","dependency_job_id":null,"html_url":"https://github.com/vsevex/dnsolve","commit_stats":null,"previous_names":["vsevex/dnsolve"],"tags_count":4,"template":false,"template_full_name":null,"purl":"pkg:github/vsevex/dnsolve","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vsevex%2Fdnsolve","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vsevex%2Fdnsolve/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vsevex%2Fdnsolve/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vsevex%2Fdnsolve/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/vsevex","download_url":"https://codeload.github.com/vsevex/dnsolve/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vsevex%2Fdnsolve/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28811606,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-27T07:41:26.337Z","status":"ssl_error","status_checked_at":"2026-01-27T07:41:08.776Z","response_time":168,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["dart3","dns","http"],"created_at":"2024-11-24T15:08:56.138Z","updated_at":"2026-01-27T10:18:31.127Z","avatar_url":"https://github.com/vsevex.png","language":"Dart","readme":"# DNSolve\n\n[![License: MIT][license_badge]][license_link]\n\nDNSolve is a Dart library that provides an easy way to perform DNS lookups. It supports both forward and reverse DNS lookups, and can be used with different DNS providers.\n\n## Overview\n\nThis project provides a convenient API wrapper for interacting with public DNS services. While it might appear to function as a traditional DNS client, it's essential to note that it operates by sending HTTP GET requests to public DNS API endpoints like Google and Cloudflare.\n\n## Features\n\n- ✅ Forward DNS lookups (A, AAAA, MX, SRV, TXT, and many more record types)\n- ✅ Reverse DNS lookups (PTR records)\n- ✅ Multiple DNS providers (Google, Cloudflare)\n- ✅ DNSSEC support\n- ✅ Custom HTTP client support\n- ✅ Configurable timeouts\n- ✅ Comprehensive error handling\n- ✅ Resource management (proper cleanup)\n- ✅ IPv6 support (including fixed reverse lookup)\n- ✅ **Enhanced record parsing** (MX, CAA, SOA, TXT records)\n- ✅ **Batch lookups** (parallel queries)\n- ✅ **Response caching** (TTL-based)\n- ✅ **Retry mechanism** (with exponential backoff)\n- ✅ **Query statistics** (success rate, average response time)\n- ✅ **Builder pattern** (fluent configuration API)\n\n## Installation\n\nTo install DNSolve, add the following dependency to your `pubspec.yaml` file:\n\n```yaml\ndependencies:\n  dnsolve: ^2.0.0\n```\n\n## Usage\n\n### Basic Forward Lookup\n\n```dart\nimport 'package:dnsolve/dnsolve.dart';\n\nFuture\u003cvoid\u003e main() async {\n  final dnsolve = DNSolve();\n\n  try {\n    final response = await dnsolve.lookup(\n      'example.com',\n      type: RecordType.A,\n    );\n\n    if (response.answer?.records != null) {\n      for (final record in response.answer!.records!) {\n        print('${record.name}: ${record.data}');\n      }\n    }\n  } finally {\n    dnsolve.dispose(); // Always dispose when done\n  }\n}\n```\n\n### SRV Record Lookup\n\n```dart\nimport 'dart:developer';\nimport 'package:dnsolve/dnsolve.dart';\n\nFuture\u003cvoid\u003e main() async {\n  final dnsolve = DNSolve();\n\n  try {\n    final response = await dnsolve.lookup(\n      '_xmpp._tcp.vsevex.me',\n      dnsSec: true,\n      type: RecordType.srv,\n    );\n\n    if (response.answer?.records != null) {\n      for (final record in response.answer!.records!) {\n        log(record.toBind);\n      }\n    }\n\n    // Access parsed SRV records\n    if (response.answer?.srvs != null) {\n      for (final srv in response.answer!.srvs!) {\n        print('Priority: ${srv.priority}, Port: ${srv.port}, Target: ${srv.target}');\n      }\n    }\n  } finally {\n    dnsolve.dispose();\n  }\n}\n```\n\n### Reverse DNS Lookup\n\n```dart\nimport 'package:dnsolve/dnsolve.dart';\n\nFuture\u003cvoid\u003e main() async {\n  final dnsolve = DNSolve();\n\n  try {\n    // IPv4 reverse lookup\n    final records = await dnsolve.reverseLookup('8.8.8.8');\n    for (final record in records) {\n      print('PTR: ${record.data}');\n    }\n\n    // IPv6 reverse lookup\n    final ipv6Records = await dnsolve.reverseLookup('2001:4860:4860::8888');\n    for (final record in ipv6Records) {\n      print('PTR: ${record.data}');\n    }\n  } finally {\n    dnsolve.dispose();\n  }\n}\n```\n\n### Custom HTTP Client and Timeout\n\n```dart\nimport 'package:dnsolve/dnsolve.dart';\nimport 'package:http/http.dart' as http;\n\nFuture\u003cvoid\u003e main() async {\n  // Use a custom HTTP client with timeout\n  final client = http.Client();\n  final dnsolve = DNSolve(client: client);\n\n  try {\n    final response = await dnsolve.lookup(\n      'example.com',\n      timeout: Duration(seconds: 10), // Custom timeout\n      provider: DNSProvider.cloudflare,\n    );\n\n    print('Status: ${response.status}');\n  } finally {\n    dnsolve.dispose();\n  }\n}\n```\n\n### Error Handling\n\n```dart\nimport 'package:dnsolve/dnsolve.dart';\n\nFuture\u003cvoid\u003e main() async {\n  final dnsolve = DNSolve();\n\n  try {\n    final response = await dnsolve.lookup(\n      'example.com',\n      timeout: Duration(seconds: 5),\n    );\n  } on TimeoutException catch (e) {\n    print('Query timed out: ${e.message}');\n  } on DNSLookupException catch (e) {\n    print('DNS lookup failed: ${e.message} (Status: ${e.statusCode})');\n  } on InvalidDomainException catch (e) {\n    print('Invalid domain: ${e.message}');\n  } on NetworkException catch (e) {\n    print('Network error: ${e.message}');\n  } finally {\n    dnsolve.dispose();\n  }\n}\n```\n\n## API Reference\n\n### DNSolve Class\n\n#### Constructor\n\n```dart\nDNSolve({http.Client? client})\n```\n\nCreates a new DNSolve instance. Optionally accepts a custom HTTP client.\n\n#### Methods\n\n##### `lookup()`\n\nPerforms a forward DNS lookup.\n\n```dart\nFuture\u003cResolveResponse\u003e lookup(\n  String domain, {\n  bool dnsSec = false,\n  RecordType type = RecordType.A,\n  DNSProvider provider = DNSProvider.google,\n  Duration? timeout,\n})\n```\n\n#### `lookupBatch()`\n\nPerforms multiple DNS lookups in parallel.\n\n```dart\nFuture\u003cList\u003cResolveResponse\u003e\u003e lookupBatch(\n  List\u003cString\u003e domains, {\n  bool dnsSec = false,\n  RecordType type = RecordType.A,\n  DNSProvider provider = DNSProvider.google,\n  Duration? timeout,\n})\n```\n\n**Parameters:**\n\n- `domain`: The domain name to lookup (required)\n- `dnsSec`: Whether to enable DNSSEC (default: `false`)\n- `type`: The DNS record type (default: `RecordType.A`)\n- `provider`: The DNS provider to use (default: `DNSProvider.google`)\n- `timeout`: Timeout duration (default: 30 seconds)\n\n**Returns:** `Future\u003cResolveResponse\u003e`\n\n**Throws:**\n\n- `InvalidDomainException`: If domain is empty or invalid\n- `TimeoutException`: If query exceeds timeout\n- `NetworkException`: If network error occurs\n- `DNSLookupException`: If DNS query fails\n\n##### `reverseLookup()`\n\nPerforms a reverse DNS lookup (PTR record).\n\n```dart\nFuture\u003cList\u003cRecord\u003e\u003e reverseLookup(\n  String ip, {\n  DNSProvider provider = DNSProvider.google,\n  Duration? timeout,\n})\n```\n\n**Parameters:**\n\n- `ip`: The IP address (IPv4 or IPv6) to lookup (required)\n- `provider`: The DNS provider to use (default: `DNSProvider.google`)\n- `timeout`: Timeout duration (default: 30 seconds)\n\n**Returns:** `Future\u003cList\u003cRecord\u003e\u003e`\n\n**Throws:**\n\n- `InvalidDomainException`: If IP address is invalid\n- `TimeoutException`: If query exceeds timeout\n- `NetworkException`: If network error occurs\n- `DNSLookupException`: If DNS query fails\n\n##### Lookup Batch\n\nPerforms multiple DNS lookups in parallel.\n\n```dart\nFuture\u003cList\u003cResolveResponse\u003e\u003e lookupBatch(\n  List\u003cString\u003e domains, {\n  bool dnsSec = false,\n  RecordType type = RecordType.A,\n  DNSProvider provider = DNSProvider.google,\n  Duration? timeout,\n})\n```\n\n##### `statistics`\n\nGets query statistics if statistics are enabled.\n\n```dart\nDNSStatistics? get statistics\n```\n\n##### `clearCache()`\n\nClears the DNS cache if caching is enabled.\n\n```dart\nvoid clearCache()\n```\n\n##### `cacheSize`\n\nGets the current cache size if caching is enabled.\n\n```dart\nint? get cacheSize\n```\n\n##### `dispose()`\n\nDisposes of resources used by this instance. **Always call this when done.**\n\n```dart\nvoid dispose()\n```\n\n##### `builder()`\n\nCreates a builder for configuring a DNSolve instance.\n\n```dart\nstatic DNSolveBuilder builder()\n```\n\n### Record Types\n\nThe following DNS record types are supported:\n\n- `A` - IPv4 address\n- `aaaa` - IPv6 address\n- `any` - Any record type\n- `caa` - Certificate Authority Authorization\n- `cds` - Child DS\n- `cert` - Certificate\n- `cname` - Canonical name\n- `dname` - Delegation name\n- `dnskey` - DNS Key\n- `ds` - Delegation Signer\n- `hinfo` - Host information\n- `ipseckey` - IPSEC key\n- `mx` - Mail exchange\n- `naptr` - Name Authority Pointer\n- `ns` - Name server\n- `nsec` - Next Secure\n- `nsec3Param` - NSEC3 parameters\n- `ptr` - Pointer (for reverse lookups)\n- `rp` - Responsible Person\n- `rrsig` - Resource Record Signature\n- `soa` - Start of Authority\n- `spf` - Sender Policy Framework\n- `srv` - Service locator\n- `sshfp` - SSH Fingerprint\n- `tlsa` - TLSA certificate\n- `txt` - Text record\n- `wks` - Well-known service\n\n### DNS Providers\n\n- `DNSProvider.google` - Google Public DNS\n- `DNSProvider.cloudflare` - Cloudflare DNS\n\n### Response Objects\n\n#### `ResolveResponse`\n\nContains the DNS resolution response.\n\n**Properties:**\n\n- `status`: DNS status code (0 = success)\n- `answer`: `Answer` object containing DNS records\n- `questions`: List of `Question` objects\n- `tc`, `rd`, `ra`, `ad`, `cd`: DNS flags\n- `comment`: Additional comments\n\n#### `Answer`\n\nContains DNS records.\n\n**Properties:**\n\n- `records`: List of `Record` objects\n- `srvs`: List of parsed `SRVRecord` objects (if SRV type)\n\n#### `Record`\n\nRepresents a single DNS record.\n\n**Properties:**\n\n- `name`: Domain name\n- `rType`: Record type\n- `ttl`: Time to live\n- `data`: Record data\n\n**Methods:**\n\n- `toBind`: Returns BIND format string\n\n#### `SRVRecord`\n\nRepresents a parsed SRV record.\n\n**Properties:**\n\n- `priority`: Priority value\n- `weight`: Weight value\n- `port`: Port number\n- `target`: Target hostname\n- `fqdn`: Fully qualified domain name\n\n**Methods:**\n\n- `sort()`: Static method to sort SRV records by priority and weight\n\n#### `MXRecord`\n\nRepresents a parsed MX (Mail Exchange) record.\n\n**Properties:**\n\n- `priority`: Priority value (lower is preferred)\n- `exchange`: Mail exchange hostname\n- `fqdn`: Fully qualified domain name\n\n#### `CAARecord`\n\nRepresents a parsed CAA (Certificate Authority Authorization) record.\n\n**Properties:**\n\n- `flags`: Flags byte\n- `tag`: Tag (e.g., \"issue\", \"issuewild\")\n- `value`: Value associated with the tag\n- `fqdn`: Fully qualified domain name\n\n#### `SOARecord`\n\nRepresents a parsed SOA (Start of Authority) record.\n\n**Properties:**\n\n- `mname`: Primary name server\n- `rname`: Administrator email (with @ replaced by .)\n- `serial`: Serial number\n- `refresh`: Refresh interval in seconds\n- `retry`: Retry interval in seconds\n- `expire`: Expire time in seconds\n- `minimum`: Minimum TTL in seconds\n- `fqdn`: Fully qualified domain name\n\n#### `TXTRecord`\n\nRepresents a parsed TXT record.\n\n**Properties:**\n\n- `text`: Text content\n- `fqdn`: Fully qualified domain name\n\n#### `DNSStatistics`\n\nQuery statistics tracking.\n\n**Properties:**\n\n- `totalQueries`: Total number of queries\n- `successfulQueries`: Number of successful queries\n- `failedQueries`: Number of failed queries\n- `averageResponseTimeMs`: Average response time in milliseconds\n- `successRate`: Success rate as a percentage\n\n**Methods:**\n\n- `reset()`: Resets all statistics\n\n### Exception Types\n\n- `DNSolveException`: Base exception class\n- `DNSLookupException`: DNS query failed\n- `NetworkException`: Network connectivity error\n- `TimeoutException`: Query timeout\n- `InvalidDomainException`: Invalid domain or IP address\n- `ResponseException`: HTTP response error\n- `SRVRecordFormatException`: SRV record parsing error\n\n## Migration from v1.x\n\n### Breaking Changes\n\n1. **Resource Management**: You must now call `dispose()` when done with a `DNSolve` instance:\n\n   ```dart\n   final dnsolve = DNSolve();\n   try {\n     // Use dnsolve...\n   } finally {\n     dnsolve.dispose();\n   }\n   ```\n\n2. **Public Classes**: `_Record`, `_Answer`, and `_Question` are now public (`Record`, `Answer`, `Question`)\n\n3. **Enum Naming**: `RecordType.nsec3PARAM` is now `RecordType.nsec3Param`\n\n4. **Exception Handling**: `assert()` validation is replaced with proper exceptions that throw in production\n\n5. **Return Types**: `reverseLookup()` now returns `List\u003cRecord\u003e` instead of `List\u003c_Record\u003e`\n\n### New Features\n\n- Custom HTTP client support\n- Configurable timeouts\n- Enhanced error handling with specific exception types\n- Fixed IPv6 reverse lookup\n- Better input validation\n- Enhanced record parsing (MX, CAA, SOA, TXT)\n- Batch lookups\n- Response caching with TTL support\n- Retry mechanism with exponential backoff\n- Query statistics tracking\n- Builder pattern for configuration\n\n## Contributing\n\nContributions are welcome! If you have any improvements, bug fixes, or new features to contribute, please create a pull request.\n\n## License\n\nThis project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.\n\n[license_badge]: https://img.shields.io/badge/license-MIT-blue.svg\n[license_link]: https://opensource.org/licenses/MIT\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvsevex%2Fdnsolve","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvsevex%2Fdnsolve","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvsevex%2Fdnsolve/lists"}