net_instaweb::DownstreamCachingDirectives Class Reference

#include "downstream_caching_directives.h"

Public Member Functions
void	ParseCapabilityListFromRequestHeaders (const RequestHeaders &request_headers)
bool	SupportsImageInlining () const
bool	SupportsLazyloadImages () const
bool	SupportsJsDefer () const
bool	SupportsWebp () const
bool	SupportsWebpLosslessAlpha () const
bool	SupportsWebpAnimated () const

Static Public Attributes
static const char	kNoCapabilitiesSpecified []

Detailed Description

This class keeps track of the properties that are specified via directives from the downstream caching layer (e.g. varnish/proxy_cache), to indicate whether certain optimizations are to be supported or not These directives are currently specified via the PS-CapabilityList request header value.

Member Function Documentation

void net_instaweb::DownstreamCachingDirectives::ParseCapabilityListFromRequestHeaders

(

const RequestHeaders &

request_headers

)

Parses the capability-list related request header value and stores this for future queries regarding supported capabilities for the request.

bool net_instaweb::DownstreamCachingDirectives::SupportsImageInlining

(

)

const

Todo:

TODO(anupama): Go through all DeviceProperties/RequestProperties methods and re-evaluate which of them need to be supported here.

bool net_instaweb::DownstreamCachingDirectives::SupportsJsDefer

(

)

const

Todo:

TODO(anupama): Incorporate the "allow_mobile" parameter used in DeviceProperties for supportsJsDefer().

Member Data Documentation

const char net_instaweb::DownstreamCachingDirectives::kNoCapabilitiesSpecified[]

static

A string that indicates that no UserAgent-dependent-optimization constraints are specified for this request.

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The documentation for this class was generated from the following file:

• net/instaweb/rewriter/public/downstream_caching_directives.h