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Public Member Functions | Public Attributes | Protected Member Functions | Private Attributes | List of all members
Http::ContentLengthInterpreter Class Reference

#include <ContentLengthInterpreter.h>

Public Member Functions

 ContentLengthInterpreter ()
 
bool checkField (const String &field)
 
void applyStatusCodeRules (const StatusCode code)
 prohibits Content-Length in 1xx and 204 responses
 
void applyTrailerRules ()
 prohibits Content-Length in GET/HEAD requests
 
const char * prohibitedAndIgnored () const
 

Public Attributes

int64_t value
 
const char * headerWideProblem
 worst header-wide problem found (or nil)
 
const int debugLevel
 debugging level for certain warnings
 
bool sawBad
 whether a malformed Content-Length value was present
 
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
 
bool checkValue (const char *start, const int size)
 
bool checkList (const String &list)
 handles Content-Length: a, b, c
 

Private Attributes

const char * prohibitedAndIgnored_
 whether and why Content-Length is prohibited
 

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 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: