http fault: implement header controlled faults #6318
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| licenses(["notice"]) # Apache 2 | ||
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| load( | ||
| "//bazel:envoy_build_system.bzl", | ||
| "envoy_cc_library", | ||
| "envoy_package", | ||
| ) | ||
|
|
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| envoy_package() | ||
|
|
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| envoy_cc_library( | ||
| name = "fault_config_lib", | ||
| srcs = ["fault_config.cc"], | ||
| hdrs = ["fault_config.h"], | ||
| deps = [ | ||
| "//include/envoy/http:header_map_interface", | ||
| "//source/common/protobuf:utility_lib", | ||
| "@envoy_api//envoy/config/filter/fault/v2:fault_cc", | ||
| ], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| #include "extensions/filters/common/fault/fault_config.h" | ||
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| #include "common/protobuf/utility.h" | ||
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| namespace Envoy { | ||
| namespace Extensions { | ||
| namespace Filters { | ||
| namespace Common { | ||
| namespace Fault { | ||
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| FaultDelayConfig::FaultDelayConfig(const envoy::config::filter::fault::v2::FaultDelay& delay_config) | ||
| : percentage_(delay_config.percentage()) { | ||
| switch (delay_config.fault_delay_secifier_case()) { | ||
| case envoy::config::filter::fault::v2::FaultDelay::kFixedDelay: | ||
| provider_ = std::make_unique<FixedDelayProvider>( | ||
| std::chrono::milliseconds(PROTOBUF_GET_MS_REQUIRED(delay_config, fixed_delay))); | ||
| break; | ||
| case envoy::config::filter::fault::v2::FaultDelay::kHeaderDelay: | ||
| provider_ = std::make_unique<HeaderDelayProvider>(); | ||
| break; | ||
| case envoy::config::filter::fault::v2::FaultDelay::FAULT_DELAY_SECIFIER_NOT_SET: | ||
| NOT_REACHED_GCOVR_EXCL_LINE; | ||
| } | ||
| } | ||
|
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| absl::optional<std::chrono::milliseconds> | ||
| FaultDelayConfig::HeaderDelayProvider::duration(const Http::HeaderEntry* header) const { | ||
| if (header == nullptr) { | ||
| return absl::nullopt; | ||
| } | ||
|
|
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| uint64_t value; | ||
| if (!StringUtil::atoull(header->value().getStringView().data(), value)) { | ||
| return absl::nullopt; | ||
| } | ||
|
|
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| return std::chrono::milliseconds(value); | ||
| } | ||
|
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| FaultRateLimitConfig::FaultRateLimitConfig( | ||
| const envoy::config::filter::fault::v2::FaultRateLimit& rate_limit_config) | ||
| : percentage_(rate_limit_config.percentage()) { | ||
| switch (rate_limit_config.limit_type_case()) { | ||
| case envoy::config::filter::fault::v2::FaultRateLimit::kFixedLimit: | ||
| provider_ = | ||
| std::make_unique<FixedRateLimitProvider>(rate_limit_config.fixed_limit().limit_kbps()); | ||
| break; | ||
| case envoy::config::filter::fault::v2::FaultRateLimit::kHeaderLimit: | ||
| provider_ = std::make_unique<HeaderRateLimitProvider>(); | ||
| break; | ||
| case envoy::config::filter::fault::v2::FaultRateLimit::LIMIT_TYPE_NOT_SET: | ||
| NOT_REACHED_GCOVR_EXCL_LINE; | ||
| } | ||
| } | ||
|
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| absl::optional<uint64_t> | ||
| FaultRateLimitConfig::HeaderRateLimitProvider::rateKbps(const Http::HeaderEntry* header) const { | ||
| if (header == nullptr) { | ||
| return absl::nullopt; | ||
| } | ||
|
|
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| uint64_t value; | ||
| if (!StringUtil::atoull(header->value().getStringView().data(), value)) { | ||
| return absl::nullopt; | ||
| } | ||
|
|
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| if (value == 0) { | ||
| return absl::nullopt; | ||
| } | ||
|
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| return value; | ||
| } | ||
|
|
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| } // namespace Fault | ||
| } // namespace Common | ||
| } // namespace Filters | ||
| } // namespace Extensions | ||
| } // namespace Envoy |
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