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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "internal/time.h"
#include <algorithm>
#include <cmath>
#include <cstddef>
#include <cstdio>
#include <string>
#include "absl/status/status.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_format.h"
#include "absl/time/time.h"
#include "internal/status_macros.h"
namespace cel::internal {
namespace {
std::string RawFormatTimestamp(absl::Time timestamp) {
return absl::FormatTime("%Y-%m-%d%ET%H:%M:%E*SZ", timestamp,
absl::UTCTimeZone());
}
} // namespace
absl::Status ValidateDuration(absl::Duration duration) {
if (duration < MinDuration()) {
return absl::InvalidArgumentError(
absl::StrCat("Duration \"", absl::FormatDuration(duration),
"\" below minimum allowed duration \"",
absl::FormatDuration(MinDuration()), "\""));
}
if (duration > MaxDuration()) {
return absl::InvalidArgumentError(
absl::StrCat("Duration \"", absl::FormatDuration(duration),
"\" above maximum allowed duration \"",
absl::FormatDuration(MaxDuration()), "\""));
}
return absl::OkStatus();
}
absl::StatusOr<absl::Duration> ParseDuration(absl::string_view input) {
absl::Duration duration;
if (!absl::ParseDuration(input, &duration)) {
return absl::InvalidArgumentError("Failed to parse duration from string");
}
return duration;
}
absl::StatusOr<std::string> FormatDuration(absl::Duration duration) {
CEL_RETURN_IF_ERROR(ValidateDuration(duration));
return absl::FormatDuration(duration);
}
std::string DebugStringDuration(absl::Duration duration) {
return absl::FormatDuration(duration);
}
absl::Status ValidateTimestamp(absl::Time timestamp) {
if (timestamp < MinTimestamp()) {
return absl::InvalidArgumentError(
absl::StrCat("Timestamp \"", RawFormatTimestamp(timestamp),
"\" below minimum allowed timestamp \"",
RawFormatTimestamp(MinTimestamp()), "\""));
}
if (timestamp > MaxTimestamp()) {
return absl::InvalidArgumentError(
absl::StrCat("Timestamp \"", RawFormatTimestamp(timestamp),
"\" above maximum allowed timestamp \"",
RawFormatTimestamp(MaxTimestamp()), "\""));
}
return absl::OkStatus();
}
absl::StatusOr<absl::Time> ParseTimestamp(absl::string_view input) {
absl::Time timestamp;
std::string err;
if (!absl::ParseTime(absl::RFC3339_full, input, absl::UTCTimeZone(),
×tamp, &err)) {
return err.empty() ? absl::InvalidArgumentError(
"Failed to parse timestamp from string")
: absl::InvalidArgumentError(absl::StrCat(
"Failed to parse timestamp from string: ", err));
}
CEL_RETURN_IF_ERROR(ValidateTimestamp(timestamp));
return timestamp;
}
absl::StatusOr<std::string> FormatTimestamp(absl::Time timestamp) {
CEL_RETURN_IF_ERROR(ValidateTimestamp(timestamp));
return RawFormatTimestamp(timestamp);
}
std::string DebugStringTimestamp(absl::Time timestamp) {
return RawFormatTimestamp(timestamp);
}
} // namespace cel::internal