| // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import "package:expect/expect.dart"; |
| import "dart:convert"; |
| import "dart:typed_data"; |
| |
| main() { |
| testMediaType(); |
| |
| testRoundTrip(""); |
| testRoundTrip("a"); |
| testRoundTrip("ab"); |
| testRoundTrip("abc"); |
| testRoundTrip("abcd"); |
| testRoundTrip("Content with special%25 characters: # ? = % # ? = %"); |
| testRoundTrip("blåbærgrød", utf8); |
| testRoundTrip("blåbærgrød", latin1); |
| |
| testUriEquals("data:,abc?d"); |
| testUriEquals("DATA:,ABC?D"); |
| testUriEquals("data:,a%20bc?d"); |
| testUriEquals("DATA:,A%20BC?D"); |
| testUriEquals("data:,abc?d%23e"); // # must and will be is escaped. |
| |
| // Test that UriData.uri normalizes path and query. |
| |
| testUtf8Encoding("\u1000\uffff"); |
| testBytes(); |
| testInvalidCharacters(); |
| testNormalization(); |
| testErrors(); |
| } |
| |
| void testMediaType() { |
| for (var mimeType in ["", "text/plain", "text/javascript"]) { |
| for (var charset in ["", ";charset=US-ASCII", ";charset=UTF-8"]) { |
| for (var base64 in ["", ";base64"]) { |
| bool isBase64 = base64.isNotEmpty; |
| var text = "data:$mimeType$charset$base64,"; |
| var uri = UriData.parse(text); |
| |
| String expectedCharset = |
| charset.isEmpty ? "US-ASCII" : charset.substring(9); |
| String expectedMimeType = mimeType.isEmpty ? "text/plain" : mimeType; |
| |
| Expect.equals(text, "$uri"); |
| Expect.equals(expectedMimeType, uri.mimeType); |
| Expect.equals(expectedCharset, uri.charset); |
| Expect.equals(isBase64, uri.isBase64); |
| } |
| } |
| } |
| } |
| |
| void testRoundTrip(String content, [Encoding? encoding]) { |
| UriData dataUri = new UriData.fromString(content, encoding: encoding); |
| Expect.isFalse(dataUri.isBase64); |
| Uri uri = dataUri.uri; |
| expectUriEquals(new Uri.dataFromString(content, encoding: encoding), uri); |
| |
| if (encoding != null) { |
| UriData dataUriParams = |
| new UriData.fromString(content, parameters: {"charset": encoding.name}); |
| Expect.equals("$dataUri", "$dataUriParams"); |
| } |
| |
| Expect.equals(encoding ?? ascii, Encoding.getByName(dataUri.charset)); |
| Expect.equals(content, dataUri.contentAsString(encoding: encoding)); |
| Expect.equals(content, dataUri.contentAsString()); |
| Expect.equals(content, (encoding ?? ascii).decode(dataUri.contentAsBytes())); |
| |
| uri = dataUri.uri; |
| Expect.equals(uri.toString(), dataUri.toString()); |
| Expect.equals(dataUri.toString(), new UriData.fromUri(uri).toString()); |
| |
| dataUri = new UriData.fromBytes(content.codeUnits); |
| Expect.listEquals(content.codeUnits, dataUri.contentAsBytes()); |
| Expect.equals(content, dataUri.contentAsString(encoding: latin1)); |
| |
| uri = dataUri.uri; |
| Expect.equals(uri.toString(), dataUri.toString()); |
| Expect.equals(dataUri.toString(), new UriData.fromUri(uri).toString()); |
| // Check that the URI is properly normalized. |
| expectUriEquals(uri, Uri.parse("$uri")); |
| } |
| |
| void testUtf8Encoding(String content) { |
| UriData uri = new UriData.fromString(content, encoding: utf8); |
| Expect.equals(content, uri.contentAsString(encoding: utf8)); |
| Expect.listEquals(utf8.encode(content), uri.contentAsBytes()); |
| } |
| |
| void testInvalidCharacters() { |
| // SPACE, CTL and tspecial, plus '%' and '#' (URI gen-delim) |
| // This contains all ASCII character that are not valid in attribute/value |
| // parts. |
| var invalid = |
| '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x7f' |
| ' ()<>@,;:"/[]?=%#\x80\u{1000}\u{10000}'; |
| var invalidNoSlash = invalid.replaceAll('/', ''); |
| var dataUri = new UriData.fromString(invalid, |
| encoding: utf8, |
| mimeType: "$invalidNoSlash/$invalidNoSlash", |
| parameters: {invalid: invalid}); |
| |
| Expect.equals(invalid, dataUri.contentAsString()); |
| Expect.equals("$invalidNoSlash/$invalidNoSlash", dataUri.mimeType); |
| Expect.equals(invalid, dataUri.parameters[invalid]); |
| |
| var uri = dataUri.uri; |
| Expect.equals("$uri", "$dataUri"); |
| expectUriEquals(uri, Uri.parse("$uri")); // Check that it's canonicalized. |
| Expect.equals("$dataUri", new UriData.fromUri(uri).toString()); |
| } |
| |
| void testBytes() { |
| void testList(List<int> list) { |
| var dataUri = new UriData.fromBytes(list); |
| Expect.equals("application/octet-stream", dataUri.mimeType); |
| Expect.isTrue(dataUri.isBase64); |
| Expect.listEquals(list, dataUri.contentAsBytes()); |
| |
| dataUri = new UriData.fromBytes(list, percentEncoded: true); |
| Expect.equals("application/octet-stream", dataUri.mimeType); |
| Expect.isFalse(dataUri.isBase64); |
| Expect.listEquals(list, dataUri.contentAsBytes()); |
| |
| var string = new String.fromCharCodes(list); |
| |
| dataUri = new UriData.fromString(string, encoding: latin1); |
| Expect.equals("text/plain", dataUri.mimeType); |
| Expect.isFalse(dataUri.isBase64); |
| Expect.listEquals(list, dataUri.contentAsBytes()); |
| |
| dataUri = new UriData.fromString(string, encoding: latin1, base64: true); |
| Expect.equals("text/plain", dataUri.mimeType); |
| Expect.isTrue(dataUri.isBase64); |
| Expect.listEquals(list, dataUri.contentAsBytes()); |
| } |
| |
| void testLists(List<int> list) { |
| testList(list); |
| for (int i = 0; i < 27; i++) { |
| testList(list.sublist(i, i + i)); // All lengths from 0 to 27. |
| } |
| } |
| |
| var bytes = new Uint8List(512); |
| for (int i = 0; i < bytes.length; i++) { |
| bytes[i] = i; |
| } |
| testLists(bytes); |
| testLists(new List.from(bytes)); |
| testLists(new List.unmodifiable(bytes)); |
| } |
| |
| void testNormalization() { |
| // Base-64 normalization. |
| |
| // Normalized URI-alphabet characters. |
| Expect.equals( |
| "data:;base64,AA/+", UriData.parse("data:;base64,AA_-").toString()); |
| // Normalized escapes. |
| Expect.equals( |
| "data:;base64,AB==", UriData.parse("data:;base64,A%42=%3D").toString()); |
| Expect.equals("data:;base64,/+/+", |
| UriData.parse("data:;base64,%5F%2D%2F%2B").toString()); |
| // Normalized padded data. |
| Expect.equals( |
| "data:;base64,AA==", UriData.parse("data:;base64,AA%3D%3D").toString()); |
| Expect.equals( |
| "data:;base64,AAA=", UriData.parse("data:;base64,AAA%3D").toString()); |
| // Normalized unpadded data. |
| Expect.equals( |
| "data:;base64,AA==", UriData.parse("data:;base64,AA").toString()); |
| Expect.equals( |
| "data:;base64,AAA=", UriData.parse("data:;base64,AAA").toString()); |
| |
| // "URI normalization" of non-base64 content. |
| var uri = UriData.parse("data:,\x20\xa0"); |
| Expect.equals("data:,%20%C2%A0", uri.toString()); |
| uri = UriData.parse("data:,x://x@y:[z]:42/p/./?q=x&y=z#?#\u1234\u{12345}"); |
| Expect.equals( |
| "data:,x://x@y:%5Bz%5D:42/p/./?q=x&y=z%23?%23%E1%88%B4%F0%92%8D%85", |
| uri.toString()); |
| } |
| |
| void testErrors() { |
| // Invalid constructor parameters. |
| Expect.throwsArgumentError( |
| () => new UriData.fromBytes([], mimeType: "noslash")); |
| Expect.throwsArgumentError(() => new UriData.fromBytes([257])); |
| Expect.throwsArgumentError(() => new UriData.fromBytes([-1])); |
| Expect.throwsArgumentError(() => new UriData.fromBytes([0x10000000])); |
| Expect.throwsArgumentError( |
| () => new UriData.fromString("", mimeType: "noslash")); |
| |
| Expect.throwsArgumentError( |
| () => new Uri.dataFromBytes([], mimeType: "noslash")); |
| Expect.throwsArgumentError(() => new Uri.dataFromBytes([257])); |
| Expect.throwsArgumentError(() => new Uri.dataFromBytes([-1])); |
| Expect.throwsArgumentError(() => new Uri.dataFromBytes([0x10000000])); |
| Expect.throwsArgumentError( |
| () => new Uri.dataFromString("", mimeType: "noslash")); |
| |
| // Empty parameters allowed, not an error. |
| var uri = new UriData.fromString("", mimeType: "", parameters: {}); |
| Expect.equals("data:,", "$uri"); |
| // Empty parameter key or value is an error. |
| Expect.throwsArgumentError( |
| () => new UriData.fromString("", parameters: {"": "X"})); |
| Expect.throwsArgumentError( |
| () => new UriData.fromString("", parameters: {"X": ""})); |
| |
| // Not recognizing charset is an error. |
| uri = UriData.parse("data:;charset=arglebargle,X"); |
| Expect.throws(() { |
| uri.contentAsString(); |
| }); |
| // Doesn't throw if we specify the encoding. |
| Expect.equals("X", uri.contentAsString(encoding: ascii)); |
| |
| // Parse format. |
| Expect.throwsFormatException(() => UriData.parse("notdata:,")); |
| Expect.throwsFormatException(() => UriData.parse("text/plain,noscheme")); |
| Expect.throwsFormatException(() => UriData.parse("data:noseparator")); |
| Expect.throwsFormatException(() => UriData.parse("data:noslash,text")); |
| Expect.throwsFormatException( |
| () => UriData.parse("data:type/sub;noequals,text")); |
| Expect.throwsFormatException(() => UriData.parse("data:type/sub;knocomma=")); |
| Expect.throwsFormatException( |
| () => UriData.parse("data:type/sub;k=v;nocomma")); |
| Expect.throwsFormatException(() => UriData.parse("data:type/sub;k=nocomma")); |
| Expect.throwsFormatException(() => UriData.parse("data:type/sub;k=v;base64")); |
| |
| void formatError(String input) { |
| Expect.throwsFormatException(() => UriData.parse("data:;base64,$input"), |
| input); |
| } |
| |
| // Invalid base64 format (detected when parsed). |
| for (var a = 0; a <= 4; a++) { |
| for (var p = 0; p <= 4; p++) { |
| // Base-64 encoding must have length divisible by four and no more |
| // than two padding characters at the end. |
| if (p < 3 && (a + p) % 4 == 0) continue; |
| if (p == 0 && a > 1) continue; |
| formatError("A" * a + "=" * p); |
| formatError("A" * a + "%3D" * p); |
| } |
| } |
| // Invalid base64 encoding: padding not at end. |
| formatError("AA=A"); |
| formatError("A=AA"); |
| formatError("=AAA"); |
| formatError("A==A"); |
| formatError("==AA"); |
| formatError("===A"); |
| formatError("AAA%3D="); |
| formatError("A%3D=="); |
| |
| // Invalid unpadded data. |
| formatError("A"); |
| formatError("AAAAA"); |
| |
| // Invalid characters. |
| formatError("AAA*"); |
| formatError("AAA\x00"); |
| formatError("AAA\\"); |
| formatError("AAA,"); |
| |
| // Invalid escapes. |
| formatError("AAA%25"); |
| formatError("AAA%7F"); |
| formatError("AAA%7F"); |
| } |
| |
| /// Checks that two [Uri]s are exactly the same. |
| expectUriEquals(Uri expect, Uri actual) { |
| Expect.equals(expect.scheme, actual.scheme, "scheme"); |
| Expect.equals(expect.hasAuthority, actual.hasAuthority, "hasAuthority"); |
| Expect.equals(expect.userInfo, actual.userInfo, "userInfo"); |
| Expect.equals(expect.host, actual.host, "host"); |
| Expect.equals(expect.hasPort, actual.hasPort, "hasPort"); |
| Expect.equals(expect.port, actual.port, "port"); |
| Expect.equals(expect.port, actual.port, "port"); |
| Expect.equals(expect.hasQuery, actual.hasQuery, "hasQuery"); |
| Expect.equals(expect.query, actual.query, "query"); |
| Expect.equals(expect.hasFragment, actual.hasFragment, "hasFragment"); |
| Expect.equals(expect.fragment, actual.fragment, "fragment"); |
| } |
| |
| void testUriEquals(String uriText) { |
| var data = UriData.parse(uriText); |
| var uri = Uri.parse(uriText); |
| Expect.equals(data.uri, uri); |
| Expect.equals(data.toString(), uri.data.toString()); |
| Expect.equals(data.toString(), uri.toString()); |
| } |