TSHttpOverridableConfig

Synopsis

#include <ts/ts.h>

TSReturnCode TSHttpTxnConfigIntSet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtInt value)

TSReturnCode TSHttpTxnConfigIntGet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtInt *value)

TSReturnCode TSHttpTxnConfigFloatSet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtFloat value)

TSReturnCode TSHttpTxnConfigFloatGet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtFloat *value)

TSReturnCode TSHttpTxnConfigStringSet(TSHttpTxn txnp, TSOverridableConfigKey key, const char *value, int length)

TSReturnCode TSHttpTxnConfigStringGet(TSHttpTxn txnp, TSOverridableConfigKey key, const char **value, int *length)

TSReturnCode TSHttpTxnConfigFind(const char *name, int length, TSOverridableConfigKey *key, TSRecordDataType *type)

Description

Some of the values that are set in records.yaml can be changed for a specific transaction. It is important to note that these functions change the configuration values stored for the transaction, which is not quite the same as changing the actual operating values of the transaction. The critical effect is the value must be changed before it is used by the transaction - after that, changes will not have any effect.

All of the ...Get functions store the internal value in the storage indicated by the value argument. For strings length* will receive the length of the string.

The values are identified by the enumeration TSOverridableConfigKey. String values can be used indirectly by first passing them to TSHttpTxnConfigFind() which, if the string matches an overridable value, return the key and data type.

Configurations

Testing TS_CONFIG_BODY_FACTORY_TEMPLATE_BASE.

The following configurations (from records.yaml) are overridable:

TSOverridableConfigKey Value	Configuration Value
TS_CONFIG_BODY_FACTORY_TEMPLATE_BASE	proxy.config.body_factory.template_base
TS_CONFIG_HTTP_ALLOW_HALF_OPEN	proxy.config.http.allow_half_open
TS_CONFIG_HTTP_ALLOW_MULTI_RANGE	proxy.config.http.allow_multi_range
TS_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP	proxy.config.http.insert_client_ip
TS_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP	proxy.config.http.anonymize_remove_client_ip
TS_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE	proxy.config.http.anonymize_remove_cookie
TS_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM	proxy.config.http.anonymize_remove_from
TS_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER	proxy.config.http.anonymize_remove_referer
TS_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT	proxy.config.http.anonymize_remove_user_agent
TS_CONFIG_HTTP_ATTACH_SERVER_SESSION_TO_CLIENT	proxy.config.http.attach_server_session_to_client
TS_CONFIG_HTTP_MAX_PROXY_CYCLES	proxy.config.http.max_proxy_cycles
TS_CONFIG_HTTP_AUTH_SERVER_SESSION_PRIVATE	proxy.config.http.auth_server_session_private
TS_CONFIG_HTTP_BACKGROUND_FILL_ACTIVE_TIMEOUT	proxy.config.http.background_fill_active_timeout
TS_CONFIG_HTTP_BACKGROUND_FILL_COMPLETED_THRESHOLD	proxy.config.http.background_fill_completed_threshold
TS_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES	proxy.config.http.cache.cache_responses_to_cookies
TS_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC	proxy.config.http.cache.cache_urls_that_look_dynamic
TS_CONFIG_HTTP_CACHE_IGNORE_QUERY	proxy.config.http.cache.ignore_query
TS_CONFIG_HTTP_CACHE_GENERATION	proxy.config.http.cache.generation
TS_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME	proxy.config.http.cache.guaranteed_max_lifetime
TS_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME	proxy.config.http.cache.guaranteed_min_lifetime
TS_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR	proxy.config.http.cache.heuristic_lm_factor
TS_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME	proxy.config.http.cache.heuristic_max_lifetime
TS_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME	proxy.config.http.cache.heuristic_min_lifetime
TS_CONFIG_HTTP_CACHE_HTTP	proxy.config.http.cache.http
TS_CONFIG_HTTP_CACHE_IGNORE_ACCEPT_CHARSET_MISMATCH	proxy.config.http.cache.ignore_accept_charset_mismatch
TS_CONFIG_HTTP_CACHE_IGNORE_ACCEPT_ENCODING_MISMATCH	proxy.config.http.cache.ignore_accept_encoding_mismatch
TS_CONFIG_HTTP_CACHE_IGNORE_ACCEPT_LANGUAGE_MISMATCH	proxy.config.http.cache.ignore_accept_language_mismatch
TS_CONFIG_HTTP_CACHE_IGNORE_ACCEPT_MISMATCH	proxy.config.http.cache.ignore_accept_mismatch
TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION	proxy.config.http.cache.ignore_authentication
TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE	proxy.config.http.cache.ignore_client_cc_max_age
TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE	proxy.config.http.cache.ignore_client_no_cache
TS_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE	proxy.config.http.cache.ignore_server_no_cache
TS_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE	proxy.config.http.cache.ims_on_client_no_cache
TS_CONFIG_HTTP_CACHE_MAX_OPEN_READ_RETRIES	proxy.config.http.cache.max_open_read_retries
TS_CONFIG_HTTP_CACHE_MAX_OPEN_WRITE_RETRIES	proxy.config.http.cache.max_open_write_retries
TS_CONFIG_HTTP_CACHE_MAX_STALE_AGE	proxy.config.http.cache.max_stale_age
TS_CONFIG_HTTP_CACHE_OPEN_READ_RETRY_TIME	proxy.config.http.cache.open_read_retry_time
TS_CONFIG_HTTP_CACHE_OPEN_WRITE_FAIL_ACTION	proxy.config.http.cache.open_write_fail_action
TS_CONFIG_HTTP_CACHE_RANGE_LOOKUP	proxy.config.http.cache.range.lookup
TS_CONFIG_HTTP_CACHE_RANGE_WRITE	proxy.config.http.cache.range.write
TS_CONFIG_HTTP_CACHE_REQUIRED_HEADERS	proxy.config.http.cache.required_headers
TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE	proxy.config.http.cache.when_to_revalidate
TS_CONFIG_HTTP_CHUNKING_ENABLED	proxy.config.http.chunking_enabled
TS_CONFIG_HTTP_CHUNKING_SIZE	proxy.config.http.chunking.size
TS_CONFIG_HTTP_DROP_CHUNKED_TRAILERS	proxy.config.http.drop_chunked_trailers
TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DOWN_SERVER	proxy.config.http.connect_attempts_max_retries_down_server
TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES	proxy.config.http.connect_attempts_max_retries
TS_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES	proxy.config.http.connect_attempts_rr_retries
TS_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT	proxy.config.http.connect_attempts_timeout
TS_CONFIG_HTTP_DEFAULT_BUFFER_SIZE	proxy.config.http.default_buffer_size
TS_CONFIG_HTTP_DEFAULT_BUFFER_WATER_MARK	proxy.config.http.default_buffer_water_mark
TS_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS	proxy.config.http.doc_in_cache_skip_dns
TS_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME	proxy.config.http.down_server.cache_time
TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED	proxy.config.http.flow_control.enabled
TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK	proxy.config.http.flow_control.high_water
TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER_MARK	proxy.config.http.flow_control.low_water
TS_CONFIG_HTTP_FORWARD_CONNECT_METHOD	proxy.config.http.forward_connect_method
TS_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT	proxy.config.http.forward.proxy_auth_to_parent
TS_CONFIG_HTTP_GLOBAL_USER_AGENT_HEADER	proxy.config.http.global_user_agent_header
TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE	proxy.config.http.insert_age_in_response
TS_CONFIG_HTTP_INSERT_FORWARDED	proxy.config.http.insert_forwarded
TS_CONFIG_HTTP_INSERT_REQUEST_VIA_STR	proxy.config.http.insert_request_via_str
TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR	proxy.config.http.insert_response_via_str
TS_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR	proxy.config.http.insert_squid_x_forwarded_for
TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN	proxy.config.http.keep_alive_enabled_in
TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT	proxy.config.http.keep_alive_enabled_out
TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN	proxy.config.http.keep_alive_no_activity_timeout_in
TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT	proxy.config.http.keep_alive_no_activity_timeout_out
TS_CONFIG_HTTP_KEEP_ALIVE_POST_OUT	proxy.config.http.keep_alive_post_out
TS_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED	proxy.config.http.negative_caching_enabled
TS_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME	proxy.config.http.negative_caching_lifetime
TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_ENABLED	proxy.config.http.negative_revalidating_enabled
TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_LIFETIME	proxy.config.http.negative_revalidating_lifetime
TS_CONFIG_HTTP_NO_DNS_JUST_FORWARD_TO_PARENT	proxy.config.http.no_dns_just_forward_to_parent
TS_CONFIG_HTTP_NORMALIZE_AE	proxy.config.http.normalize_ae
TS_CONFIG_HTTP_NUMBER_OF_REDIRECTIONS	proxy.config.http.number_of_redirections
TS_CONFIG_HTTP_PARENT_PROXY_FAIL_THRESHOLD	proxy.config.http.parent_proxy.fail_threshold
TS_CONFIG_HTTP_PARENT_PROXY_RETRY_TIME	proxy.config.http.parent_proxy.retry_time
TS_CONFIG_HTTP_PARENT_PROXY_TOTAL_CONNECT_ATTEMPTS	proxy.config.http.parent_proxy.total_connect_attempts
TS_CONFIG_HTTP_PER_PARENT_CONNECT_ATTEMPTS	proxy.config.http.parent_proxy.per_parent_connect_attempts
TS_CONFIG_HTTP_PER_SERVER_CONNECTION_MATCH	proxy.config.http.per_server.connection.match
TS_CONFIG_HTTP_PER_SERVER_CONNECTION_MAX	proxy.config.http.per_server.connection.max
TS_CONFIG_HTTP_POST_CHECK_CONTENT_LENGTH_ENABLED	proxy.config.http.post.check.content_length.enabled
TS_CONFIG_HTTP_REDIRECT_USE_ORIG_CACHE_KEY	proxy.config.http.redirect_use_orig_cache_key
TS_CONFIG_HTTP_REQUEST_BUFFER_ENABLED	proxy.config.http.request_buffer_enabled
TS_CONFIG_HTTP_REQUEST_HEADER_MAX_SIZE	proxy.config.http.request_header_max_size
TS_CONFIG_HTTP_RESPONSE_HEADER_MAX_SIZE	proxy.config.http.response_header_max_size
TS_CONFIG_HTTP_RESPONSE_SERVER_ENABLED	proxy.config.http.response_server_enabled
TS_CONFIG_HTTP_RESPONSE_SERVER_STR	proxy.config.http.response_server_str
TS_CONFIG_HTTP_SEND_HTTP11_REQUESTS	proxy.config.http.send_http11_requests
TS_CONFIG_HTTP_SERVER_SESSION_SHARING_MATCH	proxy.config.http.server_session_sharing.match
TS_CONFIG_HTTP_SLOW_LOG_THRESHOLD	proxy.config.http.slow.log.threshold
TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_IN	proxy.config.http.transaction_active_timeout_in
TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT	proxy.config.http.transaction_active_timeout_out
TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN	proxy.config.http.transaction_no_activity_timeout_in
TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT	proxy.config.http.transaction_no_activity_timeout_out
TS_CONFIG_HTTP_UNCACHEABLE_REQUESTS_BYPASS_PARENT	proxy.config.http.uncacheable_requests_bypass_parent
TS_CONFIG_NET_SOCK_OPTION_FLAG_OUT	proxy.config.net.sock_option_flag_out
TS_CONFIG_NET_SOCK_PACKET_MARK_OUT	proxy.config.net.sock_packet_mark_out
TS_CONFIG_NET_SOCK_PACKET_TOS_OUT	proxy.config.net.sock_packet_tos_out
TS_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT	proxy.config.net.sock_recv_buffer_size_out
TS_CONFIG_NET_DEFAULT_INACTIVITY_TIMEOUT	proxy.config.net.default_inactivity_timeout
TS_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT	proxy.config.net.sock_send_buffer_size_out
TS_CONFIG_PARENT_FAILURES_UPDATE_HOSTDB	proxy.config.http.parent_proxy.mark_down_hostdb
TS_CONFIG_SRV_ENABLED	proxy.config.srv_enabled
TS_CONFIG_SSL_CLIENT_CERT_FILENAME	proxy.config.ssl.client.cert.filename
TS_CONFIG_SSL_CERT_FILEPATH	proxy.config.ssl.client.cert.path
TS_CONFIG_SSL_CLIENT_VERIFY_SERVER_PROPERTIES	proxy.config.ssl.client.verify.server.properties
TS_CONFIG_SSL_CLIENT_VERIFY_SERVER_POLICY	proxy.config.ssl.client.verify.server.policy
TS_CONFIG_SSL_CLIENT_SNI_POLICY	proxy.config.ssl.client.sni_policy
TS_CONFIG_SSL_HSTS_INCLUDE_SUBDOMAINS	proxy.config.ssl.hsts_include_subdomains
TS_CONFIG_SSL_HSTS_MAX_AGE	proxy.config.ssl.hsts_max_age
TS_CONFIG_URL_REMAP_PRISTINE_HOST_HDR	proxy.config.url_remap.pristine_host_hdr
TS_CONFIG_WEBSOCKET_ACTIVE_TIMEOUT	proxy.config.websocket.active_timeout
TS_CONFIG_WEBSOCKET_NO_ACTIVITY_TIMEOUT	proxy.config.websocket.no_activity_timeout
TS_CONFIG_SSL_CLIENT_CERT_FILENAME	proxy.config.ssl.client.cert.filename
TS_CONFIG_SSL_CLIENT_PRIVATE_KEY_FILENAME	proxy.config.ssl.client.private_key.filename
TS_CONFIG_SSL_CLIENT_CA_CERT_FILENAME	proxy.config.ssl.client.CA.cert.filename
TS_CONFIG_HTTP_HOST_RESOLUTION_PREFERENCE	proxy.config.hostdb.ip_resolve
TS_CONFIG_PLUGIN_VC_DEFAULT_BUFFER_INDEX	proxy.config.plugin.vc.default_buffer_index
TS_CONFIG_PLUGIN_VC_DEFAULT_BUFFER_WATER_MARK	proxy.config.plugin.vc.default_buffer_water_mark
TS_CONFIG_NET_SOCK_NOTSENT_LOWAT	proxy.config.net.sock_notsent_lowat
TS_CONFIG_BODY_FACTORY_RESPONSE_SUPPRESSION_MODE	proxy.config.body_factory.response_suppression_mode
TS_CONFIG_HTTP_CACHE_POST_METHOD	proxy.config.http.cache.post_method

Examples

Enable transaction buffer control with a high water mark of 262144 and a low water mark of 65536.

int callback(TSCont contp, TSEvent event, void* data)
{
   TSHttpTxn txnp = static_cast<TSHttpTxn>(data);
   TSHttpTxnConfigIntSet(txnp, TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED, 1);
   TSHttpTxnConfigIntSet(txnp, TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK, 262144);
   TSHttpTxnConfigIntSet(txnp, TS_CONFIG_HTTP_FLOW_CONTROL_LOWER_WATER_MARK, 65536);
   return 0;
}

See Also

TSAPI(3ts)