--- /dev/null
+/** @file
+ This library is used to share code between UEFI network stack modules.
+ It provides the helper routines to parse the HTTP message byte stream.
+
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at<BR>
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _HTTP_LIB_H_
+#define _HTTP_LIB_H_
+
+#include <Protocol/Http.h>
+
+/**
+ Decode a percent-encoded URI component to the ASCII character.
+
+ Decode the input component in Buffer according to RFC 3986. The caller is responsible to make
+ sure ResultBuffer points to a buffer with size equal or greater than ((AsciiStrSize (Buffer))
+ in bytes.
+
+ @param[in] Buffer The pointer to a percent-encoded URI component.
+ @param[in] BufferLength Length of Buffer in bytes.
+ @param[out] ResultBuffer Point to the buffer to store the decode result.
+ @param[out] ResultLength Length of decoded string in ResultBuffer in bytes.
+
+ @retval EFI_SUCCESS Successfully decoded the URI.
+ @retval EFI_INVALID_PARAMETER Buffer is not a valid percent-encoded string.
+
+**/
+EFI_STATUS
+EFIAPI
+UriPercentDecode (
+ IN CHAR8 *Buffer,
+ IN UINT32 BufferLength,
+ OUT CHAR8 *ResultBuffer,
+ OUT UINT32 *ResultLength
+ );
+
+/**
+ Create a URL parser for the input URL string.
+
+ This function will parse and dereference the input HTTP URL into it components. The original
+ content of the URL won't be modified and the result will be returned in UrlParser, which can
+ be used in other functions like NetHttpUrlGetHostName(). It is the caller's responsibility to
+ free the buffer returned in *UrlParser by HttpUrlFreeParser().
+
+ @param[in] Url The pointer to a HTTP URL string.
+ @param[in] Length Length of Url in bytes.
+ @param[in] IsConnectMethod Whether the Url is used in HTTP CONNECT method or not.
+ @param[out] UrlParser Pointer to the returned buffer to store the parse result.
+
+ @retval EFI_SUCCESS Successfully dereferenced the HTTP URL.
+ @retval EFI_INVALID_PARAMETER UrlParser is NULL or Url is not a valid HTTP URL.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpParseUrl (
+ IN CHAR8 *Url,
+ IN UINT32 Length,
+ IN BOOLEAN IsConnectMethod,
+ OUT VOID **UrlParser
+ );
+
+/**
+ Get the Hostname from a HTTP URL.
+
+ This function will return the HostName according to the Url and previous parse result ,and
+ it is the caller's responsibility to free the buffer returned in *HostName.
+
+ @param[in] Url The pointer to a HTTP URL string.
+ @param[in] UrlParser URL Parse result returned by NetHttpParseUrl().
+ @param[out] HostName Pointer to a buffer to store the HostName.
+
+ @retval EFI_SUCCESS Successfully get the required component.
+ @retval EFI_INVALID_PARAMETER Uri is NULL or HostName is NULL or UrlParser is invalid.
+ @retval EFI_NOT_FOUND No hostName component in the URL.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpUrlGetHostName (
+ IN CHAR8 *Url,
+ IN VOID *UrlParser,
+ OUT CHAR8 **HostName
+ );
+
+/**
+ Get the IPv4 address from a HTTP URL.
+
+ This function will return the IPv4 address according to the Url and previous parse result.
+
+ @param[in] Url The pointer to a HTTP URL string.
+ @param[in] UrlParser URL Parse result returned by NetHttpParseUrl().
+ @param[out] Ip4Address Pointer to a buffer to store the IP address.
+
+ @retval EFI_SUCCESS Successfully get the required component.
+ @retval EFI_INVALID_PARAMETER Uri is NULL or Ip4Address is NULL or UrlParser is invalid.
+ @retval EFI_NOT_FOUND No IPv4 address component in the URL.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpUrlGetIp4 (
+ IN CHAR8 *Url,
+ IN VOID *UrlParser,
+ OUT EFI_IPv4_ADDRESS *Ip4Address
+ );
+
+/**
+ Get the IPv6 address from a HTTP URL.
+
+ This function will return the IPv6 address according to the Url and previous parse result.
+
+ @param[in] Url The pointer to a HTTP URL string.
+ @param[in] UrlParser URL Parse result returned by NetHttpParseUrl().
+ @param[out] Ip6Address Pointer to a buffer to store the IP address.
+
+ @retval EFI_SUCCESS Successfully get the required component.
+ @retval EFI_INVALID_PARAMETER Uri is NULL or Ip6Address is NULL or UrlParser is invalid.
+ @retval EFI_NOT_FOUND No IPv6 address component in the URL.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpUrlGetIp6 (
+ IN CHAR8 *Url,
+ IN VOID *UrlParser,
+ OUT EFI_IPv6_ADDRESS *Ip6Address
+ );
+
+/**
+ Get the port number from a HTTP URL.
+
+ This function will return the port number according to the Url and previous parse result.
+
+ @param[in] Url The pointer to a HTTP URL string.
+ @param[in] UrlParser URL Parse result returned by NetHttpParseUrl().
+ @param[out] Port Pointer to a buffer to store the port number.
+
+ @retval EFI_SUCCESS Successfully get the required component.
+ @retval EFI_INVALID_PARAMETER Uri is NULL or Port is NULL or UrlParser is invalid.
+ @retval EFI_NOT_FOUND No port number in the URL.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpUrlGetPort (
+ IN CHAR8 *Url,
+ IN VOID *UrlParser,
+ OUT UINT16 *Port
+ );
+
+/**
+ Release the resource of the URL parser.
+
+ @param[in] UrlParser Pointer to the parser.
+
+**/
+VOID
+EFIAPI
+HttpUrlFreeParser (
+ IN VOID *UrlParser
+ );
+
+//
+// HTTP body parser interface.
+//
+
+typedef enum {
+ //
+ // Part of entity data.
+ // Length of entity body in Data.
+ //
+ BodyParseEventOnData,
+ //
+ // End of message body.
+ // Length is 0 and Data points to next byte after the end of the message.
+ //
+ BodyParseEventOnComplete
+} HTTP_BODY_PARSE_EVENT;
+
+/**
+ A callback function to intercept events during message parser.
+
+ This function will be invoked during HttpParseMessageBody() with various events type. An error
+ return status of the callback function will cause the HttpParseMessageBody() aborted.
+
+ @param[in] EventType Event type of this callback call.
+ @param[in] Data A pointer to data buffer.
+ @param[in] Length Length in bytes of the Data.
+ @param[in] Context Callback context set by HttpInitMsgParser().
+
+ @retval EFI_SUCCESS Continue to parser the message body.
+ @retval Others Abort the parse.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *HTTP_BODY_PARSER_CALLBACK) (
+ IN HTTP_BODY_PARSE_EVENT EventType,
+ IN CHAR8 *Data,
+ IN UINTN Length,
+ IN VOID *Context
+);
+
+/**
+ Initialize a HTTP message-body parser.
+
+ This function will create and initialize a HTTP message parser according to caller provided HTTP message
+ header information. It is the caller's responsibility to free the buffer returned in *UrlParser by HttpFreeMsgParser().
+
+ @param[in] Method The HTTP method (e.g. GET, POST) for this HTTP message.
+ @param[in] StatusCode Response status code returned by the remote host.
+ @param[in] HeaderCount Number of HTTP header structures in Headers.
+ @param[in] Headers Array containing list of HTTP headers.
+ @param[in] Callback Callback function that is invoked when parsing the HTTP message-body,
+ set to NULL to ignore all events.
+ @param[in] Context Pointer to the context that will be passed to Callback.
+ @param[out] MsgParser Pointer to the returned buffer to store the message parser.
+
+ @retval EFI_SUCCESS Successfully initialized the parser.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources.
+ @retval EFI_INVALID_PARAMETER MsgParser is NULL or HeaderCount is not NULL but Headers is NULL.
+ @retval Others Failed to initialize the parser.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpInitMsgParser (
+ IN EFI_HTTP_METHOD Method,
+ IN EFI_HTTP_STATUS_CODE StatusCode,
+ IN UINTN HeaderCount,
+ IN EFI_HTTP_HEADER *Headers,
+ IN HTTP_BODY_PARSER_CALLBACK Callback,
+ IN VOID *Context,
+ OUT VOID **MsgParser
+ );
+
+/**
+ Parse message body.
+
+ Parse BodyLength of message-body. This function can be called repeatedly to parse the message-body partially.
+
+ @param[in, out] MsgParser Pointer to the message parser.
+ @param[in] BodyLength Length in bytes of the Body.
+ @param[in] Body Pointer to the buffer of the message-body to be parsed.
+
+ @retval EFI_SUCCESS Successfully parse the message-body.
+ @retval EFI_INVALID_PARAMETER MsgParser is NULL or Body is NULL or BodyLength is 0.
+ @retval Others Operation aborted.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpParseMessageBody (
+ IN OUT VOID *MsgParser,
+ IN UINTN BodyLength,
+ IN CHAR8 *Body
+ );
+
+/**
+ Check whether the message-body is complete or not.
+
+ @param[in] MsgParser Pointer to the message parser.
+
+ @retval TRUE Message-body is complete.
+ @retval FALSE Message-body is not complete.
+
+**/
+BOOLEAN
+EFIAPI
+HttpIsMessageComplete (
+ IN VOID *MsgParser
+ );
+
+/**
+ Get the content length of the entity.
+
+ Note that in trunk transfer, the entity length is not valid until the whole message body is received.
+
+ @param[in] MsgParser Pointer to the message parser.
+ @param[out] ContentLength Pointer to store the length of the entity.
+
+ @retval EFI_SUCCESS Successfully to get the entity length.
+ @retval EFI_NOT_READY Entity length is not valid yet.
+ @retval EFI_INVALID_PARAMETER MsgParser is NULL or ContentLength is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+HttpGetEntityLength (
+ IN VOID *MsgParser,
+ OUT UINTN *ContentLength
+ );
+
+/**
+ Release the resource of the message parser.
+
+ @param[in] MsgParser Pointer to the message parser.
+
+**/
+VOID
+EFIAPI
+HttpFreeMsgParser (
+ IN VOID *MsgParser
+ );
+
+
+#endif
+
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