`
`Exhibit G
`
`
`
`
`
`
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`
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`Case 3:17-cv-05659-WHA Document 390-10 Filed 03/14/19 Page 2 of 4
`Page 2 of 4
`Document 390-10 Filed 03/14/19
`Case 3:17-cv-05659-WHA
`
`Network Working Group
`Request for Comments: 2616
`Obsoletes: 2068
`Category: Standards Track
`
`R. Fielding
`UC Irvine
`
`J. Gettys
`Compaq/W3C
`J. Mogul
`Compaq
`H. Frystyk
`W3C/MIT
`L. Masinter
`Xerox
`P. Leach
`Microsoft
`T. Berners-Lee
`
`W3C/MIT
`June 1999
`
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`
`(HTTP) is an application-level
`The Hypertext Transfer Protocol
`protocol for distributed, collaborative, hypermedia information
`systems. It is a generic, stateless, protocol which can be used for
`many tasks beyond its use for hypertext, such as name servers and
`distributed object management systems,
`through extension of its
`request methods, error codes and headers [47]. A feature of HTTP is
`the typing and negotiation of data representation, allowing systems
`to be built independently of the data being transferred.
`
`Hypertext Transfer Protocol -- HTTP/1.1
`
`Status of this Memo
`
`This document specifies an Internet standards track protocol for the
`Internet community, and requests discussion and suggestions for
`improvements. Please refer to the current edition of the "Internet
`Official Protocol Standards" (STD 1) for the standardization state
`and status of this protocol. Distribution of this memo is unlimited.
`
`Copyright Notice
`
`Copyright
`
`(C) The Internet Society (1999). All Rights Reserved.
`
`Abstract
`
`HTTP has been in use by the World-Wide Web global information
`initiative since 199@. This specification defines the protocol
`referred to as "HTTP/1.1", and is an update to RFC 2068 [33].
`
`Fielding, et al.
`
`Standards Track
`
`RFC 2616
`
`HTTP/1.1
`
`[Page 1]
`
`June 1999
`
`Table of Contents
`
`
`
`Case 3:17-cv-05659-WHA Document 390-10 Filed 03/14/19 Page 3 of 4
`Case 3:17-cv-05659-WHA Document 390-10 Filed 03/14/19 Page 3 of 4
`15.7 Proxies and Caching ......... cece eee cece cee cere e cece eeeeee 155
`15.7.1
`Denial of Service Attacks on ProxieS............eeeeeeee 156
`16
`Acknowledgments ...... cece eee ee ee cece cece cee eee reece eee eens 156
`17=REFEPENCES 2. cece ccc ce ee eee ee eee eee eee e ence e teens 158
`18 Authors’ Addresses ....... cece cece wee e reer eee reece eee eens 162
`
`xSy \0) 0) <1 0 bk ok=) 164
`19.1
`Internet Media Type message/http and application/http ...... 164
`19.2
`Internet Media Type multipart/byteranges ............e-eeeee 165
`19.3 Tolerant Applications 2... . cece eee ee eee ce ee cece ewww eens 166
`19.4 Differences Between HTTP Entities and RFC 2045 Entities ....167
`
`Fielding, et al.
`
`Standards Track
`
`RFC 2616
`
`HTTP/1.1
`
`[Page 6]
`
`June 1999
`
`19.4.1 MIME-Version 2... .. ccc eee cece eee te cee creer cece eee eeeee 167
`19.4.2
`Conversion to Canonical Form ........... cece cece cere eevee 167
`19.4.3
`Conversion of Date Formats ........ cc eee cece eee ewe eee eee 168
`19.4.4
`Introduction of Content-Encoding ..............e eee e eevee 168
`19.4.5
`No Content-Transfer-Encoding .......... cece eee cece reeeee 168
`19.4.6
`Introduction of Transfer-Encoding ..............eeeeeeeee 169
`19.4.7
`MHTML and Line Length Limitations ...............ceeeeeee 169
`19.5 Additional Features ........ cece cc cece ce ee eee eee cece eens 169
`19.5.1
` CONteNt-DISPOSITION LL. LL Lec ere ewww cere reece cece ee eeee 170
`19.6 Compatibility with Previous Versions .............eeeeeeeeee 178
`19.6.1
`Changes from HTTP/1.0 1... .. ccc ccc cece eee eee reece cere eee 171
`19.6.2
`Compatibility with HTTP/1.@ Persistent Connections ...... 172
`19.6.3
`Changes from RFC 2068 ....... ccc cece eee ee eee eee e eee eeee 172
`722 8 6 (=>:Qe 175
`21
`Full Copyright Statement ........ cece cece ee ee eee eee eee eee eee 176
`
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`
`1 Introduction
`
`1.1 Purpose
`
`(HTTP) is an application-level
`The Hypertext Transfer Protocol
`protocol for distributed, collaborative, hypermedia information
`systems. HTTP has been in use by the World-Wide Web global
`information initiative since 199@. The first version of HTTP,
`referred to as HTTP/@.9, was a simple protocol for raw data transfer
`across the Internet. HTTP/1.0, as defined by RFC 1945 [6],
`improved
`the protocol by allowing messages to be in the format of MIME-like
`messages, containing metainformation about the data transferred and
`modifiers on the request/response semantics. However, HTTP/1.@ does
`not sufficiently take into consideration the effects of hierarchical
`proxies, caching,
`the need for persistent connections, or virtual
`hosts.
`In addition,
`the proliferation of incompletely-implemented
`applications calling themselves "HTTP/1.0" has necessitated a
`protocol version change in order for two communicating applications
`to determine each other's true capabilities.
`
`This specification defines the protocol referred to as "HTTP/1.1".
`This protocol includes more stringent requirements than HTTP/1.® in
`order to ensure reliable implementation of its features.
`
`Practical information systems require more functionality than simple
`retrieval,
`including search, front-end update, and annotation. HTTP
`allows an open-ended set of methods and headers that indicate the
`purpose of a request [47]. It builds on the discipline of reference
`provided by the Uniform Resource Identifier (URI) [3], as a location
`(URL)
`[4] or name (URN)
`[20], for indicating the resource to which a
`
`
`
`Case 3:17-cv-05659-WHA Document 390-10 Filed 03/14/19 Page 4 of 4
`Case 3:17-cv-05659-WHA Document 390-10 Filed 03/14/19 Page 4 of 4
`
`Fielding, et al.
`
`Standards Track
`
`RFC 2616
`
`HTTP/1.1
`
`[Page 7]
`
`June 1999
`
`method is to be applied. Messages are passed in a format similar to
`that used by Internet mail
`[9] as defined by the Multipurpose
`Internet Mail Extensions (MIME) [7].
`
`HTTP is also used as a generic protocol for communication between
`user agents and proxies/gateways to other Internet systems,
`including
`those supported by the SMTP [16], NNTP [13], FTP [18], Gopher [2],
`and WAIS [10] protocols.
`In this way, HTTP allows basic hypermedia
`access to resources available from diverse applications.
`
`1.2 Requirements
`
`"SHALL NOT",
`"SHALL",
`"REQUIRED",
`"MUST NOT",
`The key words "MUST",
`"SHOULD",
`"SHOULD NOT",
`"RECOMMENDED",
`"MAY", and "OPTIONAL"
`in this
`document are to be interpreted as described in RFC 2119 [34].
`
`An implementation is not compliant if it fails to satisfy one or more
`of the MUST or REQUIRED level requirements for the protocols it
`implements. An implementation that satisfies all the MUST or REQUIRED
`level and all the SHOULD level requirements for its protocols is said
`to be "unconditionally compliant"; one that satisfies all the MUST
`level requirements but not all the SHOULD level requirements for its
`protocols is said to be "conditionally compliant."
`
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`
`1.3 Terminology
`
`This specification uses a number of terms to refer to the roles
`played by participants in, and objects of,
`the HTTP communication.
`
`connection
`A transport layer virtual circuit established between two programs
`for the purpose of communication.
`
`message
`The basic unit of HTTP communication, consisting of a structured
`sequence of octets matching the syntax defined in section 4 and
`transmitted via the connection.
`
`request
`An HTTP request message, as defined in section 5.
`
`response
`An HTTP response message, as defined in section 6.
`
`Fielding, et al.
`
`Standards Track
`
`RFC 2616
`
`HTTP/1.1
`
`[Page 8]
`
`June 1999
`
`