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Unified Diff: pkg/dev_compiler/tool/input_sdk/lib/io/http_date.dart

Issue 2698353003: unfork DDC's copy of most SDK libraries (Closed)
Patch Set: revert core_patch Created 3 years, 10 months ago
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Index: pkg/dev_compiler/tool/input_sdk/lib/io/http_date.dart
diff --git a/pkg/dev_compiler/tool/input_sdk/lib/io/http_date.dart b/pkg/dev_compiler/tool/input_sdk/lib/io/http_date.dart
deleted file mode 100644
index 7f6961374004917e6510e2782e43afb82f3f60c9..0000000000000000000000000000000000000000
--- a/pkg/dev_compiler/tool/input_sdk/lib/io/http_date.dart
+++ /dev/null
@@ -1,315 +0,0 @@
-// Copyright (c) 2012, 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.
-
-part of dart.io;
-
-/**
- * Utility functions for working with dates with HTTP specific date
- * formats.
- */
-class HttpDate {
- // From RFC-2616 section "3.3.1 Full Date",
- // http://tools.ietf.org/html/rfc2616#section-3.3.1
- //
- // HTTP-date = rfc1123-date | rfc850-date | asctime-date
- // rfc1123-date = wkday "," SP date1 SP time SP "GMT"
- // rfc850-date = weekday "," SP date2 SP time SP "GMT"
- // asctime-date = wkday SP date3 SP time SP 4DIGIT
- // date1 = 2DIGIT SP month SP 4DIGIT
- // ; day month year (e.g., 02 Jun 1982)
- // date2 = 2DIGIT "-" month "-" 2DIGIT
- // ; day-month-year (e.g., 02-Jun-82)
- // date3 = month SP ( 2DIGIT | ( SP 1DIGIT ))
- // ; month day (e.g., Jun 2)
- // time = 2DIGIT ":" 2DIGIT ":" 2DIGIT
- // ; 00:00:00 - 23:59:59
- // wkday = "Mon" | "Tue" | "Wed"
- // | "Thu" | "Fri" | "Sat" | "Sun"
- // weekday = "Monday" | "Tuesday" | "Wednesday"
- // | "Thursday" | "Friday" | "Saturday" | "Sunday"
- // month = "Jan" | "Feb" | "Mar" | "Apr"
- // | "May" | "Jun" | "Jul" | "Aug"
- // | "Sep" | "Oct" | "Nov" | "Dec"
-
- /**
- * Format a date according to
- * [RFC-1123](http://tools.ietf.org/html/rfc1123 "RFC-1123"),
- * e.g. `Thu, 1 Jan 1970 00:00:00 GMT`.
- */
- static String format(DateTime date) {
- const List wkday = const ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"];
- const List month = const ["Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
-
- DateTime d = date.toUtc();
- StringBuffer sb = new StringBuffer()
- ..write(wkday[d.weekday - 1])
- ..write(", ")
- ..write(d.day <= 9 ? "0" : "")
- ..write(d.day.toString())
- ..write(" ")
- ..write(month[d.month - 1])
- ..write(" ")
- ..write(d.year.toString())
- ..write(d.hour <= 9 ? " 0" : " ")
- ..write(d.hour.toString())
- ..write(d.minute <= 9 ? ":0" : ":")
- ..write(d.minute.toString())
- ..write(d.second <= 9 ? ":0" : ":")
- ..write(d.second.toString())
- ..write(" GMT");
- return sb.toString();
- }
-
- /**
- * Parse a date string in either of the formats
- * [RFC-1123](http://tools.ietf.org/html/rfc1123 "RFC-1123"),
- * [RFC-850](http://tools.ietf.org/html/rfc850 "RFC-850") or
- * ANSI C's asctime() format. These formats are listed here.
- *
- * Thu, 1 Jan 1970 00:00:00 GMT
- * Thursday, 1-Jan-1970 00:00:00 GMT
- * Thu Jan 1 00:00:00 1970
- *
- * For more information see [RFC-2616 section
- * 3.1.1](http://tools.ietf.org/html/rfc2616#section-3.3.1
- * "RFC-2616 section 3.1.1").
- */
- static DateTime parse(String date) {
- final int SP = 32;
- const List wkdays = const ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"];
- const List weekdays = const ["Monday", "Tuesday", "Wednesday", "Thursday",
- "Friday", "Saturday", "Sunday"];
- const List months = const ["Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
- const List wkdaysLowerCase =
- const ["mon", "tue", "wed", "thu", "fri", "sat", "sun"];
- const List weekdaysLowerCase = const ["monday", "tuesday", "wednesday",
- "thursday", "friday", "saturday",
- "sunday"];
- const List monthsLowerCase = const ["jan", "feb", "mar", "apr", "may",
- "jun", "jul", "aug", "sep", "oct",
- "nov", "dec"];
-
- final int formatRfc1123 = 0;
- final int formatRfc850 = 1;
- final int formatAsctime = 2;
-
- int index = 0;
- String tmp;
- int format;
-
- void expect(String s) {
- if (date.length - index < s.length) {
- throw new HttpException("Invalid HTTP date $date");
- }
- String tmp = date.substring(index, index + s.length);
- if (tmp != s) {
- throw new HttpException("Invalid HTTP date $date");
- }
- index += s.length;
- }
-
- int expectWeekday() {
- int weekday;
- // The formatting of the weekday signals the format of the date string.
- int pos = date.indexOf(",", index);
- if (pos == -1) {
- int pos = date.indexOf(" ", index);
- if (pos == -1) throw new HttpException("Invalid HTTP date $date");
- tmp = date.substring(index, pos);
- index = pos + 1;
- weekday = wkdays.indexOf(tmp);
- if (weekday != -1) {
- format = formatAsctime;
- return weekday;
- }
- } else {
- tmp = date.substring(index, pos);
- index = pos + 1;
- weekday = wkdays.indexOf(tmp);
- if (weekday != -1) {
- format = formatRfc1123;
- return weekday;
- }
- weekday = weekdays.indexOf(tmp);
- if (weekday != -1) {
- format = formatRfc850;
- return weekday;
- }
- }
- throw new HttpException("Invalid HTTP date $date");
- }
-
- int expectMonth(String separator) {
- int pos = date.indexOf(separator, index);
- if (pos - index != 3) throw new HttpException("Invalid HTTP date $date");
- tmp = date.substring(index, pos);
- index = pos + 1;
- int month = months.indexOf(tmp);
- if (month != -1) return month;
- throw new HttpException("Invalid HTTP date $date");
- }
-
- int expectNum(String separator) {
- int pos;
- if (separator.length > 0) {
- pos = date.indexOf(separator, index);
- } else {
- pos = date.length;
- }
- String tmp = date.substring(index, pos);
- index = pos + separator.length;
- try {
- int value = int.parse(tmp);
- return value;
- } on FormatException catch (e) {
- throw new HttpException("Invalid HTTP date $date");
- }
- }
-
- void expectEnd() {
- if (index != date.length) {
- throw new HttpException("Invalid HTTP date $date");
- }
- }
-
- int weekday = expectWeekday();
- int day;
- int month;
- int year;
- int hours;
- int minutes;
- int seconds;
- if (format == formatAsctime) {
- month = expectMonth(" ");
- if (date.codeUnitAt(index) == SP) index++;
- day = expectNum(" ");
- hours = expectNum(":");
- minutes = expectNum(":");
- seconds = expectNum(" ");
- year = expectNum("");
- } else {
- expect(" ");
- day = expectNum(format == formatRfc1123 ? " " : "-");
- month = expectMonth(format == formatRfc1123 ? " " : "-");
- year = expectNum(" ");
- hours = expectNum(":");
- minutes = expectNum(":");
- seconds = expectNum(" ");
- expect("GMT");
- }
- expectEnd();
- return new DateTime.utc(year, month + 1, day, hours, minutes, seconds, 0);
- }
-
- // Parse a cookie date string.
- static DateTime _parseCookieDate(String date) {
- const List monthsLowerCase = const ["jan", "feb", "mar", "apr", "may",
- "jun", "jul", "aug", "sep", "oct",
- "nov", "dec"];
-
- int position = 0;
-
- void error() {
- throw new HttpException("Invalid cookie date $date");
- }
-
- bool isEnd() => position == date.length;
-
- bool isDelimiter(String s) {
- int char = s.codeUnitAt(0);
- if (char == 0x09) return true;
- if (char >= 0x20 && char <= 0x2F) return true;
- if (char >= 0x3B && char <= 0x40) return true;
- if (char >= 0x5B && char <= 0x60) return true;
- if (char >= 0x7B && char <= 0x7E) return true;
- return false;
- }
-
- bool isNonDelimiter(String s) {
- int char = s.codeUnitAt(0);
- if (char >= 0x00 && char <= 0x08) return true;
- if (char >= 0x0A && char <= 0x1F) return true;
- if (char >= 0x30 && char <= 0x39) return true; // Digit
- if (char == 0x3A) return true; // ':'
- if (char >= 0x41 && char <= 0x5A) return true; // Alpha
- if (char >= 0x61 && char <= 0x7A) return true; // Alpha
- if (char >= 0x7F && char <= 0xFF) return true; // Alpha
- return false;
- }
-
- bool isDigit(String s) {
- int char = s.codeUnitAt(0);
- if (char > 0x2F && char < 0x3A) return true;
- return false;
- }
-
- int getMonth(String month) {
- if (month.length < 3) return -1;
- return monthsLowerCase.indexOf(month.substring(0, 3));
- }
-
- int toInt(String s) {
- int index = 0;
- for (; index < s.length && isDigit(s[index]); index++);
- return int.parse(s.substring(0, index));
- }
-
- var tokens = [];
- while (!isEnd()) {
- while (!isEnd() && isDelimiter(date[position])) position++;
- int start = position;
- while (!isEnd() && isNonDelimiter(date[position])) position++;
- tokens.add(date.substring(start, position).toLowerCase());
- while (!isEnd() && isDelimiter(date[position])) position++;
- }
-
- String timeStr;
- String dayOfMonthStr;
- String monthStr;
- String yearStr;
-
- for (var token in tokens) {
- if (token.length < 1) continue;
- if (timeStr == null && token.length >= 5 && isDigit(token[0]) &&
- (token[1] == ":" || (isDigit(token[1]) && token[2] == ":"))) {
- timeStr = token;
- } else if (dayOfMonthStr == null && isDigit(token[0])) {
- dayOfMonthStr = token;
- } else if (monthStr == null && getMonth(token) >= 0) {
- monthStr = token;
- } else if (yearStr == null && token.length >= 2 &&
- isDigit(token[0]) && isDigit(token[1])) {
- yearStr = token;
- }
- }
-
- if (timeStr == null || dayOfMonthStr == null ||
- monthStr == null || yearStr == null) {
- error();
- }
-
- int year = toInt(yearStr);
- if (year >= 70 && year <= 99) year += 1900;
- else if (year >= 0 && year <= 69) year += 2000;
- if (year < 1601) error();
-
- int dayOfMonth = toInt(dayOfMonthStr);
- if (dayOfMonth < 1 || dayOfMonth > 31) error();
-
- int month = getMonth(monthStr) + 1;
-
- var timeList = timeStr.split(":");
- if (timeList.length != 3) error();
- int hour = toInt(timeList[0]);
- int minute = toInt(timeList[1]);
- int second = toInt(timeList[2]);
- if (hour > 23) error();
- if (minute > 59) error();
- if (second > 59) error();
-
- return new DateTime.utc(year, month, dayOfMonth, hour, minute, second, 0);
- }
-}
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