squid : Optimising Web Delivery

#include <ContentLengthInterpreter.h>

Collaboration diagram for Http::ContentLengthInterpreter:

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Public Member Functions
	ContentLengthInterpreter ()

bool	checkField (const String &field)

void	applyStatusCodeRules (const StatusCode code)
	prohibits Content-Length in 1xx and 204 responses More...

void	applyTrailerRules ()
	prohibits Content-Length in GET/HEAD requests More...

const char *	prohibitedAndIgnored () const

Public Attributes
int64_t	value

const char *	headerWideProblem
	worst header-wide problem found (or nil) More...

const int	debugLevel
	debugging level for certain warnings More...

bool	sawBad
	whether a malformed Content-Length value was present More...

bool	needsSanitizing

bool	sawGood

Protected Member Functions
const char *	findDigits (const char prefix, const char valueEnd) const

bool	goodSuffix (const char suffix, const char const end) const
	checks whether all characters after the Content-Length are allowed More...

bool	checkValue (const char *start, const int size)

bool	checkList (const String &list)
	handles Content-Length: a, b, c More...

Private Attributes
const char *	prohibitedAndIgnored_
	whether and why Content-Length is prohibited More...

Detailed Description

Finds the intended Content-Length value while parsing message-header fields. Deals with complications such as value lists and/or repeated fields.

Definition at line 21 of file ContentLengthInterpreter.h.

Constructor & Destructor Documentation

◆ ContentLengthInterpreter()

Http::ContentLengthInterpreter::ContentLengthInterpreter ( )

Definition at line 22 of file ContentLengthInterpreter.cc.

Member Function Documentation

◆ applyStatusCodeRules()

void Http::ContentLengthInterpreter::applyStatusCodeRules ( const StatusCode code )

inline

Definition at line 31 of file ContentLengthInterpreter.h.

References code, prohibitedAndIgnored_, Http::ProhibitsContentLength(), and Http::scNoContent.

Referenced by HttpReply::configureContentLengthInterpreter().

◆ applyTrailerRules()

void Http::ContentLengthInterpreter::applyTrailerRules ( )

inline

prohibits Content-Length in trailer

Definition at line 42 of file ContentLengthInterpreter.h.

References prohibitedAndIgnored_.

Referenced by Adaptation::Icap::TrailerParser::parse().

◆ checkField()

bool Http::ContentLengthInterpreter::checkField ( const String & field )

updates history based on the given message-header field

Returns: true iff the field should be added/remembered for future use

Definition at line 153 of file ContentLengthInterpreter.cc.

References String::pos(), String::rawBuf(), and String::size().

Referenced by HttpHeader::parse().

◆ checkList()

bool Http::ContentLengthInterpreter::checkList ( const String & list )

protected

Definition at line 129 of file ContentLengthInterpreter.cc.

References Config, debugs, Must, SquidConfig::onoff, String::rawBuf(), SquidConfig::relaxed_header_parser, String::size(), and strListGetItem().

◆ checkValue()

bool Http::ContentLengthInterpreter::checkValue	(	const char *	rawValue,
		const int	valueSize
	)

protected

handles a single-token Content-Length value rawValue null-termination requirements are those of httpHeaderParseOffset()

Definition at line 71 of file ContentLengthInterpreter.cc.

References Config, DBG_IMPORTANT, debugs, httpHeaderParseOffset(), Must, SquidConfig::onoff, and SquidConfig::relaxed_header_parser.

◆ findDigits()

const char * Http::ContentLengthInterpreter::findDigits	(	const char *	prefix,
		const char *	valueEnd
	)		const

protected

checks whether all characters before the Content-Length number are allowed

Returns: the start of the digit sequence (or nil on errors)

Definition at line 36 of file ContentLengthInterpreter.cc.

References CharacterSet::DIGIT, whitespace, and Http::One::Parser::WhitespaceCharacters().

◆ goodSuffix()

bool Http::ContentLengthInterpreter::goodSuffix	(	const char *	suffix,
		const char *const	end
	)		const

protected

Definition at line 53 of file ContentLengthInterpreter.cc.

References Http::One::Parser::DelimiterCharacters().

◆ prohibitedAndIgnored()

const char * Http::ContentLengthInterpreter::prohibitedAndIgnored ( ) const

inline

Definition at line 47 of file ContentLengthInterpreter.h.

References prohibitedAndIgnored_.

Referenced by HttpHeader::parse().

Member Data Documentation

◆ debugLevel

const int Http::ContentLengthInterpreter::debugLevel

Definition at line 55 of file ContentLengthInterpreter.h.

◆ headerWideProblem

const char* Http::ContentLengthInterpreter::headerWideProblem

Definition at line 54 of file ContentLengthInterpreter.h.

Referenced by HttpHeader::parse().

◆ needsSanitizing

bool Http::ContentLengthInterpreter::needsSanitizing

whether all remembered fields should be removed removed fields ought to be replaced with the intended value (if known) irrelevant if sawBad is set

Definition at line 63 of file ContentLengthInterpreter.h.

Referenced by HttpHeader::parse().

◆ prohibitedAndIgnored_

const char* Http::ContentLengthInterpreter::prohibitedAndIgnored_

private

Definition at line 77 of file ContentLengthInterpreter.h.

Referenced by applyStatusCodeRules(), applyTrailerRules(), and prohibitedAndIgnored().

◆ sawBad

bool Http::ContentLengthInterpreter::sawBad

Definition at line 58 of file ContentLengthInterpreter.h.

Referenced by HttpHeader::parse().

◆ sawGood

bool Http::ContentLengthInterpreter::sawGood

whether a valid field value was present, possibly among problematic ones irrelevant if sawBad is set

Definition at line 67 of file ContentLengthInterpreter.h.

Referenced by HttpHeader::parse().

◆ value

int64_t Http::ContentLengthInterpreter::value

intended Content-Length value if sawGood is set and sawBad is not set meaningless otherwise

Definition at line 51 of file ContentLengthInterpreter.h.

Referenced by HttpHeader::parse().

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

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