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authorhongbotian <hongbo.tianhongbo@huawei.com>2015-11-30 01:45:08 -0500
committerhongbotian <hongbo.tianhongbo@huawei.com>2015-11-30 01:45:08 -0500
commite8ec7aa8e38a93f5b034ac74cebce5de23710317 (patch)
treeaa031937bf856c1f8d6ad7877b8d2cb0224da5ef /rubbos/app/httpd-2.0.64/modules/arch/win32/mod_isapi.h
parentcc40af334e619bb549038238507407866f774f8f (diff)
upload http
JIRA: BOTTLENECK-10 Change-Id: I7598427ff904df438ce77c2819ee48ac75ffa8da Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @file mod_isapi.h
+ * @brief ISAPI module extension to Apache
+ *
+ * @defgroup MOD_ISAPI mod_isapi
+ * @ingroup APACHE_MODS
+ * @{
+ */
+
+#ifndef MOD_ISAPI_H
+#define MOD_ISAPI_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The Version Information storage passed to a module on startup
+ * via the GetExtensionVersion() entry point.
+ */
+typedef struct HSE_VERSION_INFO {
+ apr_uint32_t dwExtensionVersion;
+ char lpszExtensionDesc[256];
+} HSE_VERSION_INFO;
+
+/* The startup entry point that must be exported by every ISAPI handler
+ */
+int APR_THREAD_FUNC GetExtensionVersion(HSE_VERSION_INFO *ver_info);
+typedef int (APR_THREAD_FUNC *PFN_GETEXTENSIONVERSION)(HSE_VERSION_INFO *ver_info);
+
+/* Our internal 'HCONN' representation, always opaque to the user.
+ */
+typedef struct isapi_cid isapi_cid;
+typedef struct isapi_cid *HCONN;
+
+/* Prototypes of the essential functions exposed by mod_isapi
+ * for the module to communicate with Apache.
+ */
+typedef int (APR_THREAD_FUNC
+ *PFN_GETSERVERVARIABLE)(HCONN cid,
+ char *variable_name,
+ void *buf_data,
+ apr_uint32_t *buf_size);
+typedef int (APR_THREAD_FUNC
+ *PFN_WRITECLIENT)(HCONN cid,
+ void *buf_data,
+ apr_uint32_t *buf_size,
+ apr_uint32_t flags);
+typedef int (APR_THREAD_FUNC
+ *PFN_READCLIENT)(HCONN cid,
+ void *buf_data,
+ apr_uint32_t *buf_size);
+typedef int (APR_THREAD_FUNC
+ *PFN_SERVERSUPPORTFUNCTION)(HCONN cid,
+ apr_uint32_t HSE_code,
+ void *buf_data,
+ apr_uint32_t *buf_size,
+ apr_uint32_t *flags);
+
+/* The ecb structure is passed on each invocation of the module
+ */
+typedef struct EXTENSION_CONTROL_BLOCK {
+ apr_uint32_t cbSize;
+ apr_uint32_t dwVersion;
+ HCONN ConnID;
+ apr_uint32_t dwHttpStatusCode;
+ char lpszLogData[80];
+ char *lpszMethod;
+ char *lpszQueryString;
+ char *lpszPathInfo;
+ char *lpszPathTranslated;
+ apr_uint32_t cbTotalBytes;
+ apr_uint32_t cbAvailable;
+ unsigned char *lpbData;
+ char *lpszContentType;
+
+ PFN_GETSERVERVARIABLE GetServerVariable;
+ PFN_WRITECLIENT WriteClient;
+ PFN_READCLIENT ReadClient;
+ PFN_SERVERSUPPORTFUNCTION ServerSupportFunction;
+} EXTENSION_CONTROL_BLOCK;
+
+/* Status/Headers structure to pass to HSE_SEND_HEADER_EX,
+ * an MS extension to ServerSupportFunction
+ */
+typedef struct HSE_SEND_HEADER_EX_INFO {
+ const char * pszStatus; /* HTTP status text, such as "200 OK" */
+ const char * pszHeader; /* HTTP header lines text, such as
+ * "Content-type: text/plain\r\n"
+ * "Content-Language: en\r\n"
+ * Note that (in spite of cchFoo lengths below)
+ * NULL characters will interfere in headers.
+ */
+ apr_uint32_t cchStatus; /* length of pszStatus text */
+ apr_uint32_t cchHeader; /* length of pszHeader text */
+ int fKeepConn; /* Ignored: used to set keep-alive status,
+ * but Apache follows the client's negotiated
+ * HTTP contract to decide.
+ */
+} HSE_SEND_HEADER_EX_INFO;
+
+/* Our only 'supported' MS extended flag bit for TransmitFile,
+ * HSE_IO_SEND_HEADERS indicates that Status+Headers are present
+ * in the pszStatusCode member of the HSE_TF_INFO structure.
+ */
+#define HSE_IO_SEND_HEADERS 8
+
+/* The remaining flags are MS extended flag bits that bear little
+ * relation to Apache; the rules that the Apache server obeys follow
+ * its own design and HTTP protocol filter rules.
+ *
+ * We do not support async, however, we fake it. If HSE_IO_SYNC is
+ * not passed, and a completion context was defined, we will invoke the
+ * completion function immediately following the transfer, and then
+ * return to the caller. If HSE_IO_SYNC is passed, there is no call
+ * neccessary to the completion context.
+ */
+#define HSE_IO_SYNC 1
+#define HSE_IO_ASYNC 2
+#define HSE_IO_DISCONNECT_AFTER_SEND 4
+#define HSE_IO_NODELAY 4096
+
+/* The Completion function prototype. This callback may be fixed with
+ * the HSE_REQ_IO_COMPLETION ServerSupportFunction call, or overriden
+ * for the HSE_REQ_TRANSMIT_FILE call.
+ */
+typedef void (APR_THREAD_FUNC *PFN_HSE_IO_COMPLETION)
+ (EXTENSION_CONTROL_BLOCK *ecb,
+ void *ctxt,
+ apr_uint32_t cbIO,
+ apr_uint32_t dwError);
+
+/* TransmitFile structure to pass to HSE_REQ_TRANSMIT_FILE, an MS extension
+ */
+typedef struct HSE_TF_INFO {
+ PFN_HSE_IO_COMPLETION pfnHseIO; /* Overrides the default setting of
+ * HSE_REQ_IO_COMPLETION if not NULL
+ */
+ void *pContext;
+ apr_os_file_t hFile; /* HANDLE/fd to transmit */
+ const char *pszStatusCode; /* Ignored if HSE_IO_SEND_HEADERS is
+ * not set. Includes HTTP status text
+ * plus header text lines, such as
+ * "200 OK\r\n"
+ * "Content-type: text/plain\r\n"
+ */
+ apr_uint32_t BytesToWrite; /* 0 is write-all */
+ apr_uint32_t Offset; /* File Offset */
+ void *pHead; /* Prefix with *pHead body text */
+ apr_uint32_t HeadLength; /* Length of *pHead body text */
+ void *pTail; /* Prefix with *pTail body text */
+ apr_uint32_t TailLength; /* Length of *pTail body text */
+ apr_uint32_t dwFlags; /* bit flags described above */
+} HSE_TF_INFO;
+
+typedef struct HSE_URL_MAPEX_INFO {
+ char lpszPath[260];
+ apr_uint32_t dwFlags;
+ apr_uint32_t cchMatchingPath;
+ apr_uint32_t cchMatchingURL;
+ apr_uint32_t dwReserved1;
+ apr_uint32_t dwReserved2;
+} HSE_URL_MAPEX_INFO;
+
+/* Original ISAPI ServerSupportFunction() HSE_code methods */
+#define HSE_REQ_SEND_URL_REDIRECT_RESP 1
+#define HSE_REQ_SEND_URL 2
+#define HSE_REQ_SEND_RESPONSE_HEADER 3
+#define HSE_REQ_DONE_WITH_SESSION 4
+
+/* MS Extented methods to ISAPI ServerSupportFunction() HSE_code */
+#define HSE_REQ_MAP_URL_TO_PATH 1001 /* Emulated */
+#define HSE_REQ_GET_SSPI_INFO 1002 /* Not Supported */
+#define HSE_APPEND_LOG_PARAMETER 1003 /* Supported */
+#define HSE_REQ_IO_COMPLETION 1005 /* Emulated */
+#define HSE_REQ_TRANSMIT_FILE 1006 /* Async Emulated */
+#define HSE_REQ_REFRESH_ISAPI_ACL 1007 /* Not Supported */
+#define HSE_REQ_IS_KEEP_CONN 1008 /* Supported */
+#define HSE_REQ_ASYNC_READ_CLIENT 1010 /* Emulated */
+/* Added with ISAPI 4.0 */
+#define HSE_REQ_GET_IMPERSONATION_TOKEN 1011 /* Not Supported */
+#define HSE_REQ_MAP_URL_TO_PATH_EX 1012 /* Emulated */
+#define HSE_REQ_ABORTIVE_CLOSE 1014 /* Ignored */
+/* Added after ISAPI 4.0 in IIS 5.0 */
+#define HSE_REQ_GET_CERT_INFO_EX 1015 /* Not Supported */
+#define HSE_REQ_SEND_RESPONSE_HEADER_EX 1016 /* Supported (no nulls!) */
+#define HSE_REQ_CLOSE_CONNECTION 1017 /* Ignored */
+#define HSE_REQ_IS_CONNECTED 1018 /* Supported */
+#define HSE_REQ_EXTENSION_TRIGGER 1020 /* Not Supported */
+
+/* The request entry point that must be exported by every ISAPI handler
+ */
+apr_uint32_t APR_THREAD_FUNC HttpExtensionProc(EXTENSION_CONTROL_BLOCK *ecb);
+typedef apr_uint32_t (APR_THREAD_FUNC
+ *PFN_HTTPEXTENSIONPROC)(EXTENSION_CONTROL_BLOCK *ecb);
+
+/* Allowable return values from HttpExtensionProc (apparently 0 is also
+ * accepted by MS IIS, and we will respect it as Success.)
+ * If the HttpExtensionProc returns HSE_STATUS_PENDING, we will create
+ * a wait mutex and lock on it, until HSE_REQ_DONE_WITH_SESSION is called.
+ */
+#define HSE_STATUS_SUCCESS 1
+#define HSE_STATUS_SUCCESS_AND_KEEP_CONN 2 /* 1 vs 2 Ignored, we choose */
+#define HSE_STATUS_PENDING 3 /* Emulated (thread lock) */
+#define HSE_STATUS_ERROR 4
+
+/* Anticipated error code for common faults within mod_isapi itself
+ */
+#ifndef ERROR_INSUFFICIENT_BUFFER
+#define ERROR_INSUFFICIENT_BUFFER ENOBUFS
+#endif
+#ifndef ERROR_INVALID_INDEX
+#define ERROR_INVALID_INDEX EINVAL
+#endif
+#ifndef ERROR_INVALID_PARAMETER
+#define ERROR_INVALID_PARAMETER EINVAL
+#endif
+#ifndef ERROR_READ_FAULT
+#define ERROR_READ_FAULT EIO
+#endif
+#ifndef ERROR_WRITE_FAULT
+#define ERROR_WRITE_FAULT EIO
+#endif
+#ifndef ERROR_SUCCESS
+#define ERROR_SUCCESS 0
+#endif
+
+/* Valid flags passed with TerminateExtension()
+ */
+#define HSE_TERM_MUST_UNLOAD 1
+#define HSE_TERM_ADVISORY_UNLOAD 2
+
+/* The shutdown entry point óptionally exported by an ISAPI handler, passed
+ * HSE_TERM_MUST_UNLOAD or HSE_TERM_ADVISORY_UNLOAD. The module may return
+ * if passed HSE_TERM_ADVISORY_UNLOAD, and the module will remain loaded.
+ * If the module returns 1 to HSE_TERM_ADVISORY_UNLOAD it is immediately
+ * unloaded. If the module is passed HSE_TERM_MUST_UNLOAD, its return value
+ * is ignored.
+ */
+int APR_THREAD_FUNC TerminateExtension(apr_uint32_t flags);
+typedef int (APR_THREAD_FUNC *PFN_TERMINATEEXTENSION)(apr_uint32_t flags);
+
+/* Module may return 0 if passed HSE_TERM_ADVISORY_UNLOAD, and the module
+ * will remain loaded, or 1 if it consents to being unloaded. If the module
+ * is passed HSE_TERM_MUST_UNLOAD, it's return value is ignored.
+ */
+#define HSE_TERM_MUST_UNLOAD 1
+#define HSE_TERM_ADVISORY_UNLOAD 2
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !MOD_ISAPI_H */
+/** @} */
+