#include "base/macros.h"
#include "base/time/time.h"
-#include "net/http/http_response_headers.h"
#include "net/proxy/proxy_service.h"
+namespace net {
+
+class HttpResponseHeaders;
+
+} // namespace net
+
namespace data_reduction_proxy {
+// Values of the UMA DataReductionProxy.BypassType{Primary|Fallback}
+// and DataReductionProxy.BlockType{Primary|Fallback} histograms.
+// This enum must remain synchronized with the enum of the same
+// name in metrics/histograms/histograms.xml.
+enum DataReductionProxyBypassType {
+ // Bypass due to explicit instruction for the current request.
+ BYPASS_EVENT_TYPE_CURRENT = 0,
+
+ // Bypass the proxy for less than one minute.
+ BYPASS_EVENT_TYPE_SHORT = 1,
+
+ // Bypass the proxy for one to five minutes.
+ BYPASS_EVENT_TYPE_MEDIUM = 2,
+
+ // Bypass the proxy for more than five minutes.
+ BYPASS_EVENT_TYPE_LONG = 3,
+
+ // Bypass due to a 4xx missing via header.
+ BYPASS_EVENT_TYPE_MISSING_VIA_HEADER_4XX = 4,
+
+ // Bypass due to other missing via header, excluding 4xx errors.
+ BYPASS_EVENT_TYPE_MISSING_VIA_HEADER_OTHER = 5,
+
+ // Bypass due to 407 response from proxy without a challenge.
+ BYPASS_EVENT_TYPE_MALFORMED_407 = 6,
+
+ // Bypass due to a 500 internal server error
+ BYPASS_EVENT_TYPE_STATUS_500_HTTP_INTERNAL_SERVER_ERROR = 7,
+
+ // Bypass because the request URI was too long.
+ BYPASS_EVENT_TYPE_STATUS_502_HTTP_BAD_GATEWAY = 8,
+
+ // Bypass due to a 503 response.
+ BYPASS_EVENT_TYPE_STATUS_503_HTTP_SERVICE_UNAVAILABLE = 9,
+
+ // Bypass due to any network error.
+ BYPASS_EVENT_TYPE_NETWORK_ERROR = 10,
+
+ // This must always be last.
+ BYPASS_EVENT_TYPE_MAX = 11
+};
+
// Contains instructions contained in the Chrome-Proxy header.
struct DataReductionProxyInfo {
- DataReductionProxyInfo() : bypass_all(false) {}
+ DataReductionProxyInfo()
+ : bypass_all(false), mark_proxies_as_bad(false) {}
// True if Chrome should bypass all available data reduction proxies. False
// if only the currently connected data reduction proxy should be bypassed.
bool bypass_all;
- // Amount of time to bypass the data reduction proxy or proxies.
+ // True iff Chrome should mark the data reduction proxy or proxies as bad for
+ // the period of time specified in |bypass_duration|.
+ bool mark_proxies_as_bad;
+
+ // Amount of time to bypass the data reduction proxy or proxies. This value is
+ // ignored if |mark_proxies_as_bad| is false.
base::TimeDelta bypass_duration;
};
// (as specified in |ProxyList::UpdateRetryInfoOnFallback|) should be used.
// If all available data reduction proxies should by bypassed, |bypass_all| is
// set to true. |proxy_info| must be non-NULL.
-bool GetDataReductionProxyInfo(
- const net::HttpResponseHeaders* headers,
- DataReductionProxyInfo* proxy_info);
+bool ParseHeadersAndSetProxyInfo(const net::HttpResponseHeaders* headers,
+ DataReductionProxyInfo* proxy_info);
-// Returns true if the response contain the data reduction proxy Via header
-// value. Used to check the integrity of data reduction proxy responses.
-bool HasDataReductionProxyViaHeader(const net::HttpResponseHeaders* headers);
+// Returns true if the response contains the data reduction proxy Via header
+// value. If non-NULL, sets |has_intermediary| to true if another server added
+// a Via header after the data reduction proxy, and to false otherwise. Used to
+// check the integrity of data reduction proxy responses and whether there are
+// other middleboxes between the data reduction proxy and the client.
+bool HasDataReductionProxyViaHeader(const net::HttpResponseHeaders* headers,
+ bool* has_intermediary);
// Returns the reason why the Chrome proxy should be bypassed or not, and
// populates |proxy_info| with information on how long to bypass if
// applicable.
-net::ProxyService::DataReductionProxyBypassEventType
-GetDataReductionProxyBypassEventType(
+DataReductionProxyBypassType GetDataReductionProxyBypassType(
const net::HttpResponseHeaders* headers,
DataReductionProxyInfo* proxy_info);
+// Searches for the specified Chrome-Proxy action, and if present saves its
+// value as a string in |action_value|. Only returns the first one and ignores
+// the rest if multiple actions match |action_prefix|.
+bool GetDataReductionProxyActionValue(
+ const net::HttpResponseHeaders* headers,
+ const std::string& action_prefix,
+ std::string* action_value);
+
// Searches for the specified Chrome-Proxy action, and if present interprets
// its value as a duration in seconds.
-bool GetDataReductionProxyBypassDuration(
+bool ParseHeadersAndSetBypassDuration(const net::HttpResponseHeaders* headers,
+ const std::string& action_prefix,
+ base::TimeDelta* bypass_duration);
+
+// Gets the fingerprint of the Chrome-Proxy header.
+bool GetDataReductionProxyActionFingerprintChromeProxy(
const net::HttpResponseHeaders* headers,
- const std::string& action_prefix,
- base::TimeDelta* duration);
+ std::string* chrome_proxy_fingerprint);
+
+// Gets the fingerprint of the Via header.
+bool GetDataReductionProxyActionFingerprintVia(
+ const net::HttpResponseHeaders* headers,
+ std::string* via_fingerprint);
+
+// Gets the fingerprint of a list of headers.
+bool GetDataReductionProxyActionFingerprintOtherHeaders(
+ const net::HttpResponseHeaders* headers,
+ std::string* other_headers_fingerprint);
+
+// Gets the fingerprint of Content-Length header.
+bool GetDataReductionProxyActionFingerprintContentLength(
+ const net::HttpResponseHeaders* headers,
+ std::string* content_length_fingerprint);
+
+// Returns values of the Chrome-Proxy header, but with its fingerprint removed.
+void GetDataReductionProxyHeaderWithFingerprintRemoved(
+ const net::HttpResponseHeaders* headers,
+ std::vector<std::string>* values);
} // namespace data_reduction_proxy
#endif // COMPONENTS_DATA_REDUCTION_PROXY_COMMON_DATA_REDUCTION_PROXY_HEADERS_H_
projects / platform / framework / web / crosswalk.git / blobdiff