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3542152c23
Signed-off-by: Eric Pouech <eric.pouech@gmail.com> Signed-off-by: Zebediah Figura <zfigura@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
310 lines
10 KiB
C
310 lines
10 KiB
C
/*
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* Copyright 2019 Zebediah Figura
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* We have to return the HTTP_REQUEST structure to userspace exactly as it will
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* be consumed; httpapi has no opportunity to massage it. Since it contains
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* pointers, this is somewhat nontrivial. */
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struct http_unknown_header
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{
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USHORT NameLength;
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USHORT RawValueLength;
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POINTER pName; /* char string */
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POINTER pRawValue; /* char string */
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};
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struct http_data_chunk
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{
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HTTP_DATA_CHUNK_TYPE DataChunkType;
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union
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{
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struct
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{
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POINTER pBuffer; /* char string */
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ULONG BufferLength;
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} FromMemory;
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/* for the struct size */
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struct
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{
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ULARGE_INTEGER StartingOffset;
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ULARGE_INTEGER Length;
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POINTER FileHandle;
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} FromFileHandle;
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};
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};
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struct http_request
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{
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ULONG Flags;
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HTTP_CONNECTION_ID ConnectionId;
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HTTP_REQUEST_ID RequestId;
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HTTP_URL_CONTEXT UrlContext;
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HTTP_VERSION Version;
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HTTP_VERB Verb;
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USHORT UnknownVerbLength;
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USHORT RawUrlLength;
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POINTER pUnknownVerb; /* char string */
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POINTER pRawUrl; /* char string */
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struct
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{
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USHORT FullUrlLength;
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USHORT HostLength;
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USHORT AbsPathLength;
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USHORT QueryStringLength;
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POINTER pFullUrl; /* WCHAR string */
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POINTER pHost; /* pointer to above */
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POINTER pAbsPath; /* pointer to above */
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POINTER pQueryString; /* pointer to above */
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} CookedUrl;
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struct
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{
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POINTER pRemoteAddress; /* SOCKADDR */
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POINTER pLocalAddress; /* SOCKADDR */
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} Address;
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struct
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{
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USHORT UnknownHeaderCount;
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POINTER pUnknownHeaders; /* struct http_unknown_header */
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USHORT TrailerCount;
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POINTER pTrailers; /* NULL */
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struct
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{
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USHORT RawValueLength;
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POINTER pRawValue; /* char string */
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} KnownHeaders[HttpHeaderRequestMaximum];
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} Headers;
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ULONGLONG BytesReceived;
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USHORT EntityChunkCount;
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POINTER pEntityChunks; /* struct http_data_chunk */
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HTTP_RAW_CONNECTION_ID RawConnectionId;
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POINTER pSslInfo; /* NULL (FIXME) */
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USHORT RequestInfoCount;
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POINTER pRequestInfo; /* NULL (FIXME) */
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};
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static NTSTATUS complete_irp(struct connection *conn, IRP *irp)
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{
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const struct http_receive_request_params params
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= *(struct http_receive_request_params *)irp->AssociatedIrp.SystemBuffer;
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ULONG cooked_len, host_len, abs_path_len, query_len, chunk_len = 0, offset, processed;
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IO_STACK_LOCATION *stack = IoGetCurrentIrpStackLocation(irp);
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const DWORD output_len = stack->Parameters.DeviceIoControl.OutputBufferLength;
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struct http_request *req = irp->AssociatedIrp.SystemBuffer;
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const char *p, *name, *value, *host, *abs_path, *query;
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struct http_unknown_header *unk_headers = NULL;
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char *buffer = irp->AssociatedIrp.SystemBuffer;
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DWORD irp_size = sizeof(struct http_request);
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USHORT unk_headers_count = 0, unk_header_idx;
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struct http_data_chunk *chunk = NULL;
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int name_len, value_len, len;
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struct sockaddr_in addr;
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/* First calculate the total buffer size needed for this IRP. */
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if (conn->unk_verb_len)
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irp_size += conn->unk_verb_len + 1;
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irp_size += conn->url_len + 1;
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/* cooked URL */
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if (conn->url[0] == '/')
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{
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p = host = conn->host;
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while (isgraph(*p)) ++p;
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host_len = p - conn->host;
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abs_path = conn->url;
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abs_path_len = conn->url_len;
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}
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else
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{
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host = conn->url + 7;
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abs_path = strchr(host, '/');
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host_len = abs_path - host;
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abs_path_len = (conn->url + conn->url_len) - abs_path;
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}
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if ((query = memchr(abs_path, '?', abs_path_len)))
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{
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query_len = (abs_path + abs_path_len) - query;
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abs_path_len = query - abs_path;
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}
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else
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query_len = 0;
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cooked_len = (7 /* scheme */ + host_len + abs_path_len + query_len) * sizeof(WCHAR);
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irp_size += cooked_len + sizeof(WCHAR);
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/* addresses */
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irp_size += 2 * sizeof(addr);
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/* headers */
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p = strstr(conn->buffer, "\r\n") + 2;
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while (memcmp(p, "\r\n", 2))
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{
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name = p;
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parse_header(name, &name_len, &value, &value_len);
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if (parse_header_name(name, name_len) == HttpHeaderRequestMaximum)
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{
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irp_size += name_len + 1;
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++unk_headers_count;
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}
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irp_size += value_len + 1;
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p = strstr(p, "\r\n") + 2;
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}
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p += 2;
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irp_size += unk_headers_count * sizeof(struct http_unknown_header);
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TRACE("Need %lu bytes, have %lu.\n", irp_size, output_len);
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irp->IoStatus.Information = irp_size;
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memset(irp->AssociatedIrp.SystemBuffer, 0, output_len);
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if (output_len < irp_size)
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{
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req->ConnectionId = (ULONG_PTR)conn;
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req->RequestId = conn->req_id;
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return STATUS_BUFFER_OVERFLOW;
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}
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offset = sizeof(*req);
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req->ConnectionId = (ULONG_PTR)conn;
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req->RequestId = conn->req_id;
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req->UrlContext = conn->queue->context;
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req->Version = conn->version;
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req->Verb = conn->verb;
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req->UnknownVerbLength = conn->unk_verb_len;
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req->RawUrlLength = conn->url_len;
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if (conn->unk_verb_len)
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{
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req->pUnknownVerb = params.addr + offset;
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memcpy(buffer + offset, conn->buffer, conn->unk_verb_len);
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offset += conn->unk_verb_len;
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buffer[offset++] = 0;
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}
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req->pRawUrl = params.addr + offset;
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memcpy(buffer + offset, conn->url, conn->url_len);
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offset += conn->url_len;
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buffer[offset++] = 0;
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req->CookedUrl.FullUrlLength = cooked_len;
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req->CookedUrl.HostLength = host_len * sizeof(WCHAR);
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req->CookedUrl.AbsPathLength = abs_path_len * sizeof(WCHAR);
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req->CookedUrl.QueryStringLength = query_len * sizeof(WCHAR);
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req->CookedUrl.pFullUrl = params.addr + offset;
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req->CookedUrl.pHost = req->CookedUrl.pFullUrl + 7 * sizeof(WCHAR);
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req->CookedUrl.pAbsPath = req->CookedUrl.pHost + host_len * sizeof(WCHAR);
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if (query)
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req->CookedUrl.pQueryString = req->CookedUrl.pAbsPath + abs_path_len * sizeof(WCHAR);
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memcpy(buffer + offset, L"http://", sizeof(L"http://"));
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offset += 7 * sizeof(WCHAR);
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MultiByteToWideChar(CP_ACP, 0, host, host_len, (WCHAR *)(buffer + offset), host_len * sizeof(WCHAR));
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offset += host_len * sizeof(WCHAR);
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MultiByteToWideChar(CP_ACP, 0, abs_path, abs_path_len + query_len,
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(WCHAR *)(buffer + offset), (abs_path_len + query_len) * sizeof(WCHAR));
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offset += (abs_path_len + query_len) * sizeof(WCHAR);
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buffer[offset++] = 0;
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buffer[offset++] = 0;
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req->Address.pRemoteAddress = params.addr + offset;
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len = sizeof(addr);
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getpeername(conn->socket, (struct sockaddr *)&addr, &len);
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memcpy(buffer + offset, &addr, sizeof(addr));
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offset += sizeof(addr);
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req->Address.pLocalAddress = params.addr + offset;
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len = sizeof(addr);
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getsockname(conn->socket, (struct sockaddr *)&addr, &len);
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memcpy(buffer + offset, &addr, sizeof(addr));
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offset += sizeof(addr);
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req->Headers.UnknownHeaderCount = unk_headers_count;
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if (unk_headers_count)
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{
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req->Headers.pUnknownHeaders = params.addr + offset;
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unk_headers = (struct http_unknown_header *)(buffer + offset);
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offset += unk_headers_count * sizeof(*unk_headers);
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}
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unk_header_idx = 0;
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p = strstr(conn->buffer, "\r\n") + 2;
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while (memcmp(p, "\r\n", 2))
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{
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HTTP_HEADER_ID id;
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name = p;
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parse_header(name, &name_len, &value, &value_len);
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if ((id = parse_header_name(name, name_len)) == HttpHeaderRequestMaximum)
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{
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unk_headers[unk_header_idx].NameLength = name_len;
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unk_headers[unk_header_idx].RawValueLength = value_len;
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unk_headers[unk_header_idx].pName = params.addr + offset;
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memcpy(buffer + offset, name, name_len);
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offset += name_len;
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buffer[offset++] = 0;
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unk_headers[unk_header_idx].pRawValue = params.addr + offset;
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memcpy(buffer + offset, value, value_len);
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offset += value_len;
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buffer[offset++] = 0;
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++unk_header_idx;
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}
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else
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{
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req->Headers.KnownHeaders[id].RawValueLength = value_len;
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req->Headers.KnownHeaders[id].pRawValue = params.addr + offset;
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memcpy(buffer + offset, value, value_len);
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offset += value_len;
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buffer[offset++] = 0;
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}
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p = strstr(p, "\r\n") + 2;
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}
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p += 2;
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if (irp_size + sizeof(*chunk) < output_len && (params.flags & HTTP_RECEIVE_REQUEST_FLAG_COPY_BODY))
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chunk_len = min(conn->content_len, output_len - (irp_size + sizeof(*chunk)));
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if (chunk_len)
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{
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req->EntityChunkCount = 1;
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req->pEntityChunks = params.addr + offset;
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chunk = (struct http_data_chunk *)(buffer + offset);
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offset += sizeof(*chunk);
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chunk->DataChunkType = HttpDataChunkFromMemory;
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chunk->FromMemory.BufferLength = chunk_len;
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chunk->FromMemory.pBuffer = params.addr + offset;
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memcpy(buffer + offset, p, chunk_len);
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offset += chunk_len;
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irp->IoStatus.Information = irp_size + sizeof(*chunk) + chunk_len;
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}
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if (chunk_len < conn->content_len)
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req->Flags |= HTTP_REQUEST_FLAG_MORE_ENTITY_BODY_EXISTS;
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req->BytesReceived = conn->req_len;
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assert(offset == irp->IoStatus.Information);
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conn->available = FALSE;
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processed = conn->req_len - (conn->content_len - chunk_len);
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memmove(conn->buffer, conn->buffer + processed, conn->len - processed);
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conn->content_len -= chunk_len;
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conn->len -= processed;
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return STATUS_SUCCESS;
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}
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