Post-trickling ICAP overheads can be significantly reduced if Not-yet-trickled remainder of the message to the ICAP client. The ICAP server receives the complete message, it sends the Message data are provided to the ICAP client to avoid timeoutsĪnd indicate progress. While the ICAP server accumulates the message, small amounts of Most such servers require the complete message to perform analysis. HTTP messages containing malware or other undesirable content. Data trickling is a common behavior for ICAP servers that block.The complete HTTP body in order to modify the HTTP header. Without an extension, the ICAP server has to receive and return A 204 (NoĬontent) response does not allow to modify the HTTP headers. HTTP message but does not want to change the body. An ICAP server wants to change the header of an encapsulated.Partial Content feature have been identified: The standard ICAP 204 (No Content) response. In the environment where the ICAP server performs adaptations prohibiting Cerpa, “Internet Content Adaptation Protocol (ICAP),” April 2003. The Partial Content feature minimizes original body transfer from the

The Trust Legal Provisions and are provided without warranty as Include Simplified BSD License text as described in Section 4.e of Code Components extracted from this document must Please review these documentsĬarefully, as they describe your rights and restrictions with respect This document is subject to BCP 78 and the IETF Trust's Legal Copyright NoticeĬopyright (c) 2010 IETF Trust and the persons identified as the This Internet-Draft will expire on November 20, 2010. It is inappropriate to use Internet-Drafts as reference material or to cite Internet-Drafts are draft documents valid for a maximum of six monthsĪnd may be updated, replaced, or obsoleted by other documents at any time. Note that other groups may also distribute Internet-Drafts are working documents of the Internet Engineering Optimizes two common ICAP/1.0 use cases: header-only adaptations andĬonformance with the provisions of BCP 78 and BCP 79. This document defines 'Partial Content', an ICAP extension that Draft-icap-ext-partial-content-07 Abstract

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