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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| // | ||
| // Copyright Aliaksei Levin ([email protected]), Arseny Smirnov ([email protected]) 2014-2024 | ||
| // | ||
| // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
| #include "td/utils/HttpDate.h" | ||
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| #include "td/utils/misc.h" | ||
| #include "td/utils/Parser.h" | ||
| #include "td/utils/Slice.h" | ||
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| namespace td { | ||
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| Result<int32> HttpDate::to_unix_time(int32 year, int32 month, int32 day, int32 hour, int32 minute, int32 second) { | ||
| if (year < 1970 || year > 2037) { | ||
| return Status::Error("Invalid year"); | ||
| } | ||
| if (month < 1 || month > 12) { | ||
| return Status::Error("Invalid month"); | ||
| } | ||
| if (day < 1 || day > days_in_month(year, month)) { | ||
| return Status::Error("Invalid day"); | ||
| } | ||
| if (hour < 0 || hour >= 24) { | ||
| return Status::Error("Invalid hour"); | ||
| } | ||
| if (minute < 0 || minute >= 60) { | ||
| return Status::Error("Invalid minute"); | ||
| } | ||
| if (second < 0 || second > 60) { | ||
| return Status::Error("Invalid second"); | ||
| } | ||
|
|
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| int32 res = 0; | ||
| for (int32 y = 1970; y < year; y++) { | ||
| res += (is_leap(y) + 365) * seconds_in_day(); | ||
| } | ||
| for (int32 m = 1; m < month; m++) { | ||
| res += days_in_month(year, m) * seconds_in_day(); | ||
| } | ||
| res += (day - 1) * seconds_in_day(); | ||
| res += hour * 60 * 60; | ||
| res += minute * 60; | ||
| res += second; | ||
| return res; | ||
| } | ||
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| Result<int32> HttpDate::parse_http_date(string slice) { | ||
| Parser p(slice); | ||
| p.read_till(','); // ignore week day | ||
| p.skip(','); | ||
| p.skip_whitespaces(); | ||
| p.skip_nofail('0'); | ||
| TRY_RESULT(day, to_integer_safe<int32>(p.read_word())); | ||
| auto month_name = p.read_word(); | ||
| to_lower_inplace(month_name); | ||
| TRY_RESULT(year, to_integer_safe<int32>(p.read_word())); | ||
| p.skip_whitespaces(); | ||
| p.skip_nofail('0'); | ||
| TRY_RESULT(hour, to_integer_safe<int32>(p.read_till(':'))); | ||
| p.skip(':'); | ||
| p.skip_nofail('0'); | ||
| TRY_RESULT(minute, to_integer_safe<int32>(p.read_till(':'))); | ||
| p.skip(':'); | ||
| p.skip_nofail('0'); | ||
| TRY_RESULT(second, to_integer_safe<int32>(p.read_word())); | ||
| auto gmt = p.read_word(); | ||
| TRY_STATUS(std::move(p.status())); | ||
| if (gmt != "GMT") { | ||
| return Status::Error("Timezone must be GMT"); | ||
| } | ||
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| static Slice month_names[12] = {"jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"}; | ||
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| int month = 0; | ||
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| for (int m = 1; m <= 12; m++) { | ||
| if (month_names[m - 1] == month_name) { | ||
| month = m; | ||
| break; | ||
| } | ||
| } | ||
|
|
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| if (month == 0) { | ||
| return Status::Error("Unknown month name"); | ||
| } | ||
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| return to_unix_time(year, month, day, hour, minute, second); | ||
| } | ||
|
|
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| } // namespace td |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| // | ||
| // Copyright Aliaksei Levin ([email protected]), Arseny Smirnov ([email protected]) 2014-2024 | ||
| // | ||
| // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
| #pragma once | ||
|
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| #include "td/utils/common.h" | ||
| #include "td/utils/Status.h" | ||
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| namespace td { | ||
|
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| class HttpDate { | ||
| static bool is_leap(int32 year) { | ||
| return year % 4 == 0 && (year % 100 != 0 || year % 400 == 0); | ||
| } | ||
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| static int32 seconds_in_day() { | ||
| return 24 * 60 * 60; | ||
| } | ||
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| public: | ||
| static int32 days_in_month(int32 year, int32 month) { | ||
| static int cnt[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; | ||
| return cnt[month - 1] + (month == 2 && is_leap(year)); | ||
| } | ||
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| static Result<int32> to_unix_time(int32 year, int32 month, int32 day, int32 hour, int32 minute, int32 second); | ||
|
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| static Result<int32> parse_http_date(string slice); | ||
| }; | ||
|
|
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| } // namespace td |
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