[edk2-devel] [PATCH 1/1] NetworkPkg/HttpBootDxe: Add Support for HTTPS Proxy Server for HTTP Boot
Saloni Kasbekar
saloni.kasbekar at intel.com
Thu Jul 7 22:17:11 UTC 2022
Hi Maciej,
1. I will update the code to add a new function to split that code into a separate function. Once the basic auth patch is checked in, I’ll re-send the changes for review so that we have the complete logic in the new function.
2. I see your point. I’ll update the code to fix it.
3. The code has been updated to include the proxy server and the endpoint server in the device path. Currently the device path just includes one URI which is described as (server_path/file_path). I’ve added a new option so that we can add an endpoint server to that device path to include the proxy server option. This will be have two URIs in the device path. For eg - (endpoint_server_path) /(proxy_server_path/file_path). If this is ok with you, I can update the code so that the comments makes this more clear.
Thanks,
Saloni
From: Rabeda, Maciej <maciej.rabeda at linux.intel.com>
Sent: Friday, July 1, 2022 7:05 AM
To: Kasbekar, Saloni <saloni.kasbekar at intel.com>; devel at edk2.groups.io
Cc: Wu, Jiaxin <jiaxin.wu at intel.com>; Siyuan Fu <siyuan.fu at intel.com>; Wang, Jian J <jian.j.wang at intel.com>; Gao, Liming <gaoliming at byosoft.com.cn>
Subject: Re: [PATCH 1/1] NetworkPkg/HttpBootDxe: Add Support for HTTPS Proxy Server for HTTP Boot
Hi Saloni,
This patch contains several problems. At minimum:
1. HttpBootLoadFile() logic around calling HttpBootGetBootFile() is becoming more complex - and BZ 2504 patch adds to it. I am becoming convinced that this part of HttpBootLoadFile() should have a separate function with a looped state machine, to cover all cases.
2. EfiHttpRequest(): "EndPointUrl = AllocateZeroPool (UrlLen)" followed with... "EndPointUrl = (CHAR8 *)Request->EndPointUrl". Was it supposed to be a copy from Request->EndPointUrl to EndPointUrl buffer or some other operation that I cannot comprehend?
3. Could you provide more more information on device path shenanigans around proxy URI?
Thanks,
Maciej
On 23 cze 2022 00:54, Saloni Kasbekar wrote:
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3951
Add CONNECT HTTP command in order to create a tunnel from HTTPS
Proxy Server to EndPoint Server.
Add support to connect through proxy server using DevicePath
sent to the Boot Manager.
Cc: Maciej Rabeda <maciej.rabeda at linux.intel.com><mailto:maciej.rabeda at linux.intel.com>
Cc: Wu Jiaxin <jiaxin.wu at intel.com><mailto:jiaxin.wu at intel.com>
Cc: Siyuan Fu <siyuan.fu at intel.com><mailto:siyuan.fu at intel.com>
Cc: Jian J Wang <jian.j.wang at intel.com><mailto:jian.j.wang at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn><mailto:gaoliming at byosoft.com.cn>
Signed-off-by: Saloni Kasbekar <saloni.kasbekar at intel.com><mailto:saloni.kasbekar at intel.com>
---
.../Library/UefiBootManagerLib/BmBoot.c | 11 ++
MdePkg/Include/Protocol/Http.h | 5 +
NetworkPkg/HttpBootDxe/HttpBootClient.c | 168 +++++++++++++++++-
NetworkPkg/HttpBootDxe/HttpBootClient.h | 16 ++
NetworkPkg/HttpBootDxe/HttpBootDxe.h | 6 +
NetworkPkg/HttpBootDxe/HttpBootImpl.c | 46 +++--
NetworkPkg/HttpBootDxe/HttpBootSupport.c | 13 +-
NetworkPkg/HttpBootDxe/HttpBootSupport.h | 8 +-
NetworkPkg/HttpDxe/HttpImpl.c | 21 ++-
NetworkPkg/Library/DxeHttpLib/DxeHttpLib.c | 5 +
10 files changed, 273 insertions(+), 26 deletions(-)
diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
index 962892d38f14..c5f09b619a89 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
+++ b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
@@ -1513,7 +1513,9 @@ BmExpandLoadFiles (
UINTN HandleCount;
UINTN Index;
EFI_DEVICE_PATH_PROTOCOL *Node;
+ URI_DEVICE_PATH *NullUriPath;
+ NullUriPath = NULL;
//
// Get file buffer from load file instance.
//
@@ -1543,10 +1545,19 @@ BmExpandLoadFiles (
HandleCount = 0;
}
+ NullUriPath = (URI_DEVICE_PATH *)CreateDeviceNode (
+ MESSAGING_DEVICE_PATH,
+ MSG_URI_DP,
+ (UINT16)(sizeof (URI_DEVICE_PATH))
+ );
+
for (Index = 0; Index < HandleCount; Index++) {
if (BmMatchHttpBootDevicePath (DevicePathFromHandle (Handles[Index]), FilePath)) {
Handle = Handles[Index];
break;
+ } else if (BmMatchHttpBootDevicePath (AppendDevicePathNode (DevicePathFromHandle (Handles[Index]), (EFI_DEVICE_PATH_PROTOCOL *)NullUriPath), FilePath)) {
+ Handle = Handles[Index];
+ break;
}
}
diff --git a/MdePkg/Include/Protocol/Http.h b/MdePkg/Include/Protocol/Http.h
index 28e622159392..4cf8fa4c0c97 100644
--- a/MdePkg/Include/Protocol/Http.h
+++ b/MdePkg/Include/Protocol/Http.h
@@ -191,6 +191,11 @@ typedef struct {
/// is assumed. See RFC 3986 for more details on URI syntax.
///
CHAR16 *Url;
+ ///
+ /// The URI of an endpoint host if the Url field contains the address of a proxy server.
+ /// This field will be NULL if a proxy server is not involved.
+ ///
+ CHAR16 *EndPointUrl;
} EFI_HTTP_REQUEST_DATA;
///
diff --git a/NetworkPkg/HttpBootDxe/HttpBootClient.c b/NetworkPkg/HttpBootDxe/HttpBootClient.c
index 62e87238fef7..2a4608414bd9 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootClient.c
+++ b/NetworkPkg/HttpBootDxe/HttpBootClient.c
@@ -901,6 +901,168 @@ HttpBootGetBootFileCallback (
return EFI_SUCCESS;
}
+/**
+ This function establishes a connection through a proxy server
+
+ @param[in] Private The pointer to the driver's private data.
+
+ @retval EFI_SUCCESS Connection successful.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources
+ @retval Others Unexpected error happened.
+
+**/
+EFI_STATUS
+HttpBootConnectProxy (
+ IN HTTP_BOOT_PRIVATE_DATA *Private
+ )
+{
+ EFI_STATUS Status;
+ EFI_HTTP_STATUS_CODE StatusCode;
+ CHAR8 *HostName;
+ EFI_HTTP_REQUEST_DATA *RequestData;
+ HTTP_IO_RESPONSE_DATA *ResponseData;
+ HTTP_IO *HttpIo;
+ HTTP_IO_HEADER *HttpIoHeader;
+ CHAR16 *Url;
+ CHAR16 *EndPointUrl;
+ UINTN UrlSize;
+
+ UrlSize = AsciiStrSize (Private->BootFileUri);
+ Url = AllocatePool (UrlSize * sizeof (CHAR16));
+ if (Url == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ AsciiStrToUnicodeStrS (Private->BootFileUri, Url, UrlSize);
+
+ UrlSize = AsciiStrSize (Private->EndPointUri);
+ EndPointUrl = AllocatePool (UrlSize * (sizeof (CHAR16)));
+ if (EndPointUrl == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CopyMem (EndPointUrl, Private->EndPointUri, UrlSize);
+
+ //
+ // 2. Send HTTP request message.
+ //
+
+ //
+ // 2.1 Build HTTP header for the request, 2 header is needed to send a CONNECT method:
+ // Host
+ // User
+ //
+ HttpIoHeader = HttpIoCreateHeader (2);
+ if (HttpIoHeader == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto ERROR_3;
+ }
+
+ //
+ // Add HTTP header field 1: Host (proxy)
+ //
+ HostName = Private->EndPointUri;
+ Status = HttpIoSetHeader (
+ HttpIoHeader,
+ HTTP_HEADER_HOST,
+ HostName
+ );
+ if (EFI_ERROR (Status)) {
+ goto ERROR_3;
+ }
+
+ //
+ // Add HTTP header field 2: User-Agent
+ //
+ Status = HttpIoSetHeader (
+ HttpIoHeader,
+ HTTP_HEADER_USER_AGENT,
+ HTTP_USER_AGENT_EFI_HTTP_BOOT
+ );
+ if (EFI_ERROR (Status)) {
+ goto ERROR_3;
+ }
+
+ //
+ // 2.2 Build the rest of HTTP request info.
+ //
+ RequestData = AllocatePool (sizeof (EFI_HTTP_REQUEST_DATA));
+ if (RequestData == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto ERROR_3;
+ }
+
+ RequestData->Method = HttpMethodConnect;
+ RequestData->Url = Url;
+ RequestData->EndPointUrl = EndPointUrl;
+
+ //
+ // 2.4 Send out the request to HTTP server.
+ //
+ HttpIo = &Private->HttpIo;
+ Status = HttpIoSendRequest (
+ HttpIo,
+ RequestData,
+ HttpIoHeader->HeaderCount,
+ HttpIoHeader->Headers,
+ 0,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ERROR_4;
+ }
+
+ //
+ // 3. Receive HTTP response message.
+ //
+
+ //
+ // 3.1 First step, use zero BodyLength to only receive the response headers.
+ //
+ ResponseData = AllocateZeroPool (sizeof (HTTP_IO_RESPONSE_DATA));
+ if (ResponseData == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto ERROR_4;
+ }
+
+ Status = HttpIoRecvResponse (
+ &Private->HttpIo,
+ TRUE,
+ ResponseData
+ );
+
+ if (EFI_ERROR (Status) || EFI_ERROR (ResponseData->Status)) {
+ if (EFI_ERROR (ResponseData->Status)) {
+ StatusCode = HttpIo->RspToken.Message->Data.Response->StatusCode;
+ HttpBootPrintErrorMessage (StatusCode);
+ Status = ResponseData->Status;
+ }
+
+ goto ERROR_5;
+ }
+
+ return Status;
+
+ERROR_5:
+ if (ResponseData != NULL) {
+ FreePool (ResponseData);
+ }
+
+ERROR_4:
+ if (RequestData != NULL) {
+ FreePool (RequestData);
+ }
+
+ERROR_3:
+ HttpIoFreeHeader (HttpIoHeader);
+
+ if (Url != NULL) {
+ FreePool (Url);
+ }
+
+ return Status;
+}
+
/**
This function download the boot file by using UEFI HTTP protocol.
@@ -922,6 +1084,7 @@ HttpBootGetBootFileCallback (
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory entry.
BufferSize has been updated with the size needed to complete
the request.
+ @retval EFI_ACCESS_DENIED The server needs to authenticate the client.
@retval Others Unexpected error happened.
**/
@@ -1072,8 +1235,9 @@ HttpBootGetBootFile (
goto ERROR_3;
}
- RequestData->Method = HeaderOnly ? HttpMethodHead : HttpMethodGet;
- RequestData->Url = Url;
+ RequestData->Method = HeaderOnly ? HttpMethodHead : HttpMethodGet;
+ RequestData->Url = Url;
+ RequestData->EndPointUrl = NULL;
//
// 2.3 Record the request info in a temp cache item.
diff --git a/NetworkPkg/HttpBootDxe/HttpBootClient.h b/NetworkPkg/HttpBootDxe/HttpBootClient.h
index 406529dfd927..d702aa6e9f70 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootClient.h
+++ b/NetworkPkg/HttpBootDxe/HttpBootClient.h
@@ -85,6 +85,21 @@ HttpBootCreateHttpIo (
IN HTTP_BOOT_PRIVATE_DATA *Private
);
+/**
+ This function establishes a connection through a proxy server
+
+ @param[in] Private The pointer to the driver's private data.
+
+ @retval EFI_SUCCESS Connection successful.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources
+ @retval Others Unexpected error happened.
+
+**/
+EFI_STATUS
+HttpBootConnectProxy (
+ IN HTTP_BOOT_PRIVATE_DATA *Private
+ );
+
/**
This function download the boot file by using UEFI HTTP protocol.
@@ -106,6 +121,7 @@ HttpBootCreateHttpIo (
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory entry.
BufferSize has been updated with the size needed to complete
the request.
+ @retval EFI_ACCESS_DENIED The server needs to authenticate the client.
@retval Others Unexpected error happened.
**/
diff --git a/NetworkPkg/HttpBootDxe/HttpBootDxe.h b/NetworkPkg/HttpBootDxe/HttpBootDxe.h
index 5acbae9bfa76..cb3b7214f26e 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootDxe.h
+++ b/NetworkPkg/HttpBootDxe/HttpBootDxe.h
@@ -217,6 +217,12 @@ struct _HTTP_BOOT_PRIVATE_DATA {
CHAR8 *FilePathUri;
VOID *FilePathUriParser;
+ //
+ // URI string for the endpoint host if BootFileUri contains the path
+ // for a proxy server
+ //
+ CHAR8 *EndPointUri;
+
//
// Cached HTTP data
//
diff --git a/NetworkPkg/HttpBootDxe/HttpBootImpl.c b/NetworkPkg/HttpBootDxe/HttpBootImpl.c
index 3da585a29164..2b112fb3ced8 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootImpl.c
+++ b/NetworkPkg/HttpBootDxe/HttpBootImpl.c
@@ -116,8 +116,10 @@ HttpBootStart (
UINTN Index;
EFI_STATUS Status;
CHAR8 *Uri;
+ CHAR8 *EndPointUri;
- Uri = NULL;
+ Uri = NULL;
+ EndPointUri = NULL;
if ((Private == NULL) || (FilePath == NULL)) {
return EFI_INVALID_PARAMETER;
@@ -127,7 +129,7 @@ HttpBootStart (
// Check the URI in the input FilePath, in order to see whether it is
// required to boot from a new specified boot file.
//
- Status = HttpBootParseFilePath (FilePath, &Uri);
+ Status = HttpBootParseFilePath (FilePath, &Uri, &EndPointUri);
if (EFI_ERROR (Status)) {
return EFI_INVALID_PARAMETER;
}
@@ -187,6 +189,7 @@ HttpBootStart (
// Record the specified URI and prepare the URI parser if needed.
//
Private->FilePathUri = Uri;
+ Private->EndPointUri = EndPointUri;
if (Private->FilePathUri != NULL) {
Status = HttpParseUrl (
Private->FilePathUri,
@@ -306,6 +309,7 @@ HttpBootLoadFile (
)
{
EFI_STATUS Status;
+ UINT8 Index;
if ((Private == NULL) || (ImageType == NULL) || (BufferSize == NULL)) {
return EFI_INVALID_PARAMETER;
@@ -349,30 +353,40 @@ HttpBootLoadFile (
//
// Discover the information about the bootfile if we haven't.
//
+ for (Index = 0; Index < 2; Index++) {
+ if (Index == 1) {
+ Status = HttpBootConnectProxy (Private);
+ }
- //
- // Try to use HTTP HEAD method.
- //
- Status = HttpBootGetBootFile (
- Private,
- TRUE,
- &Private->BootFileSize,
- NULL,
- &Private->ImageType
- );
- if (EFI_ERROR (Status) && (Status != EFI_BUFFER_TOO_SMALL)) {
//
- // Failed to get file size by HEAD method, may be trunked encoding, try HTTP GET method.
+ // Try to use HTTP HEAD method.
//
- ASSERT (Private->BootFileSize == 0);
Status = HttpBootGetBootFile (
Private,
- FALSE,
+ TRUE,
&Private->BootFileSize,
NULL,
&Private->ImageType
);
if (EFI_ERROR (Status) && (Status != EFI_BUFFER_TOO_SMALL)) {
+ //
+ // Failed to get file size by HEAD method, may be trunked encoding, try HTTP GET method.
+ //
+ ASSERT (Private->BootFileSize == 0);
+ Status = HttpBootGetBootFile (
+ Private,
+ FALSE,
+ &Private->BootFileSize,
+ NULL,
+ &Private->ImageType
+ );
+ }
+
+ if (Status == EFI_SUCCESS) {
+ break;
+ }
+
+ if (EFI_ERROR (Status) && (Status != EFI_BUFFER_TOO_SMALL) && (Index == 2)) {
AsciiPrint ("\n Error: Could not retrieve NBP file size from HTTP server.\n");
goto ON_EXIT;
}
diff --git a/NetworkPkg/HttpBootDxe/HttpBootSupport.c b/NetworkPkg/HttpBootDxe/HttpBootSupport.c
index 236ef259318b..1de36f61a98b 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootSupport.c
+++ b/NetworkPkg/HttpBootDxe/HttpBootSupport.c
@@ -558,6 +558,7 @@ HttpBootCheckUriScheme (
@param[in] FilePath Pointer to the device path which contains a URI device path node.
@param[out] UriAddress The URI address string extract from the device path.
+ @param[out] EndPointUriAddress The URI address string for the endpoint host if UriAddress contains the address of a proxy server
@retval EFI_SUCCESS The URI string is returned.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@@ -566,7 +567,8 @@ HttpBootCheckUriScheme (
EFI_STATUS
HttpBootParseFilePath (
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
- OUT CHAR8 **UriAddress
+ OUT CHAR8 **UriAddress,
+ OUT CHAR8 **EndPointUriAddress
)
{
EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
@@ -578,8 +580,9 @@ HttpBootParseFilePath (
return EFI_INVALID_PARAMETER;
}
- *UriAddress = NULL;
-
+ Uri = NULL;
+ *UriAddress = NULL;
+ *EndPointUriAddress = NULL;
//
// Extract the URI address from the FilePath
//
@@ -601,6 +604,10 @@ HttpBootParseFilePath (
break;
}
+ if (Uri != NULL) {
+ *EndPointUriAddress = Uri;
+ }
+
Uri = AllocatePool (UriStrLength + 1);
if (Uri == NULL) {
return EFI_OUT_OF_RESOURCES;
diff --git a/NetworkPkg/HttpBootDxe/HttpBootSupport.h b/NetworkPkg/HttpBootDxe/HttpBootSupport.h
index 3698e5593642..6228f37e3676 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootSupport.h
+++ b/NetworkPkg/HttpBootDxe/HttpBootSupport.h
@@ -138,8 +138,9 @@ HttpBootCheckUriScheme (
Caller need to free the buffer in the UriAddress pointer.
- @param[in] FilePath Pointer to the device path which contains a URI device path node.
- @param[out] UriAddress The URI address string extract from the device path.
+ @param[in] FilePath Pointer to the device path which contains a URI device path node.
+ @param[out] UriAddress The URI address string extract from the device path.
+ @param[out] EndPointUriAddress The URI address string for the endpoint host if UriAddress contains the address of a proxy server
@retval EFI_SUCCESS The URI string is returned.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@@ -148,7 +149,8 @@ HttpBootCheckUriScheme (
EFI_STATUS
HttpBootParseFilePath (
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
- OUT CHAR8 **UriAddress
+ OUT CHAR8 **UriAddress,
+ OUT CHAR8 **EndPointUriAddress
);
/**
diff --git a/NetworkPkg/HttpDxe/HttpImpl.c b/NetworkPkg/HttpDxe/HttpImpl.c
index 7c5c925cf78b..14084ba14a99 100644
--- a/NetworkPkg/HttpDxe/HttpImpl.c
+++ b/NetworkPkg/HttpDxe/HttpImpl.c
@@ -243,6 +243,7 @@ EfiHttpRequest (
BOOLEAN TlsConfigure;
CHAR8 *RequestMsg;
CHAR8 *Url;
+ CHAR8 *EndPointUrl;
UINTN UrlLen;
CHAR16 *HostNameStr;
HTTP_TOKEN_WRAP *Wrap;
@@ -262,6 +263,7 @@ EfiHttpRequest (
Wrap = NULL;
FileUrl = NULL;
TlsConfigure = FALSE;
+ EndPointUrl = NULL;
if ((This == NULL) || (Token == NULL)) {
return EFI_INVALID_PARAMETER;
@@ -280,7 +282,7 @@ EfiHttpRequest (
if ((Request != NULL) && (Request->Method != HttpMethodGet) &&
(Request->Method != HttpMethodHead) && (Request->Method != HttpMethodDelete) &&
(Request->Method != HttpMethodPut) && (Request->Method != HttpMethodPost) &&
- (Request->Method != HttpMethodPatch))
+ (Request->Method != HttpMethodPatch) && (Request->Method != HttpMethodConnect))
{
return EFI_UNSUPPORTED;
}
@@ -352,6 +354,17 @@ EfiHttpRequest (
}
UnicodeStrToAsciiStrS (Request->Url, Url, UrlLen);
+ if (Request->EndPointUrl != NULL) {
+ UrlLen = StrLen (Request->EndPointUrl) + 1;
+ if (UrlLen > HTTP_URL_BUFFER_LEN) {
+ EndPointUrl = AllocateZeroPool (UrlLen);
+ if (EndPointUrl == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ }
+
+ EndPointUrl = (CHAR8 *)Request->EndPointUrl;
+ }
//
// From the information in Url, the HTTP instance will
@@ -632,7 +645,11 @@ EfiHttpRequest (
}
}
- Status = HttpGenRequestMessage (HttpMsg, FileUrl, &RequestMsg, &RequestMsgSize);
+ if (HttpInstance->Method == HttpMethodConnect) {
+ Status = HttpGenRequestMessage (HttpMsg, EndPointUrl, &RequestMsg, &RequestMsgSize);
+ } else {
+ Status = HttpGenRequestMessage (HttpMsg, FileUrl, &RequestMsg, &RequestMsgSize);
+ }
if (EFI_ERROR (Status) || (NULL == RequestMsg)) {
goto Error3;
diff --git a/NetworkPkg/Library/DxeHttpLib/DxeHttpLib.c b/NetworkPkg/Library/DxeHttpLib/DxeHttpLib.c
index 6a5d78629bb3..45087a19350a 100644
--- a/NetworkPkg/Library/DxeHttpLib/DxeHttpLib.c
+++ b/NetworkPkg/Library/DxeHttpLib/DxeHttpLib.c
@@ -1927,6 +1927,11 @@ HttpGenRequestMessage (
CopyMem (RequestPtr, HTTP_METHOD_DELETE, StrLength);
RequestPtr += StrLength;
break;
+ case HttpMethodConnect:
+ StrLength = sizeof (HTTP_METHOD_CONNECT) - 1;
+ CopyMem (RequestPtr, HTTP_METHOD_CONNECT, StrLength);
+ RequestPtr += StrLength;
+ break;
default:
ASSERT (FALSE);
Status = EFI_INVALID_PARAMETER;
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