pier 01/04/17 06:17:08
Modified: connectors/apache-1.3 mod_webapp.c
Log:
New module for apache 1.3
Revision Changes Path
1.9 +28 -995 jakarta-tomcat-4.0/connectors/apache-1.3/mod_webapp.c
Index: mod_webapp.c
===================================================================
RCS file: /home/cvs/jakarta-tomcat-4.0/connectors/apache-1.3/mod_webapp.c,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- mod_webapp.c 2001/01/23 18:43:16 1.8
+++ mod_webapp.c 2001/04/17 13:17:02 1.9
@@ -1,1116 +1,149 @@
/* ========================================================================= *
-
* *
-
* The Apache Software License, Version 1.1 *
-
* *
-
- * Copyright (c) 1999, 2000 The Apache Software Foundation. *
-
+ * Copyright (c) 1999-2001 The Apache Software Foundation. *
* All rights reserved. *
-
* *
-
* ========================================================================= *
-
* *
-
* Redistribution and use in source and binary forms, with or without modi- *
-
* fication, are permitted provided that the following conditions are met: *
-
* *
-
* 1. Redistributions of source code must retain the above copyright notice *
-
* notice, this list of conditions and the following disclaimer. *
-
* *
-
* 2. Redistributions in binary form must reproduce the above copyright *
-
* notice, this list of conditions and the following disclaimer in the *
-
* documentation and/or other materials provided with the distribution. *
-
* *
-
* 3. The end-user documentation included with the redistribution, if any, *
-
* must include the following acknowlegement: *
-
* *
-
* "This product includes software developed by the Apache Software *
-
* Foundation <http://www.apache.org/>." *
-
* *
-
* Alternately, this acknowlegement may appear in the software itself, if *
-
* and wherever such third-party acknowlegements normally appear. *
-
* *
-
- * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software *
-
+ * 4. The names "The Jakarta Project", "WebApp", and "Apache Software *
* Foundation" must not be used to endorse or promote products derived *
-
* from this software without prior written permission. For written *
-
* permission, please contact <[EMAIL PROTECTED]>. *
-
* *
-
* 5. Products derived from this software may not be called "Apache" nor may *
-
* "Apache" appear in their names without prior written permission of the *
-
* Apache Software Foundation. *
-
* *
-
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES *
-
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY *
-
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL *
-
* THE APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY *
-
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL *
-
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS *
-
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) *
-
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, *
-
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN *
-
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE *
-
* POSSIBILITY OF SUCH DAMAGE. *
-
* *
-
* ========================================================================= *
-
* *
-
* This software consists of voluntary contributions made by many indivi- *
-
* duals on behalf of the Apache Software Foundation. For more information *
-
* on the Apache Software Foundation, please see <http://www.apache.org/>. *
-
* *
-
* ========================================================================= */
-
-
-// CVS $Id: mod_webapp.c,v 1.8 2001/01/23 18:43:16 pier Exp $
-
-// Author: Pier Fumagalli <mailto:[EMAIL PROTECTED]>
-
-
+/**
+ * @author Pier Fumagalli <mailto:[EMAIL PROTECTED]>
+ * @version $Id: mod_webapp.c,v 1.9 2001/04/17 13:17:02 pier Exp $
+ */
#include <httpd.h>
-
#include <http_config.h>
-
#include <http_core.h>
-
#include <http_log.h>
-
#include <http_main.h>
-
#include <http_protocol.h>
-
#include <util_script.h>
-
#include <wa.h>
-
-
-
-
/* ************************************************************************* */
-
/* GENERIC DECLARATIONS */
-
/* ************************************************************************* */
-
-
/* Module declaration */
-
module webapp_module;
-/* Callback structure declaration */
-
-static wa_callback webapp_callbacks;
-
-/* Our server (used to log error messages from the library) */
-
-static server_rec *webapp_server=NULL;
-
-
-
-
-
/* ************************************************************************* */
-
/* CONFUGURATION ROUTINES */
-
/* ************************************************************************* */
-
-
/**
-
* Configure a webapp connection.
-
*
-
* @param name The connection unique name.
-
* @param connector The name of the WebApp connector to use.
-
* @param parameters Connector-specific parameters (can be NULL).
-
*/
-
static const char *webapp_config_connection (cmd_parms *cmd, void *mconfig,
-
char *name, char *provider,
-
char *parameter) {
-
return(wa_connection_create(name, provider, parameter));
-
}
-
-
/**
-
* Configure a webapp application mount point.
-
*
-
* @param name The web application name.
-
* @param cname The connection name.
-
* @param path The web application root path.
-
*/
-
static const char *webapp_config_mount (cmd_parms *cmd, void *mconfig,
-
char *name, char *cname, char *path) {
-
server_rec *s=cmd->server;
-
wa_host *host=NULL;
-
wa_connection *conn=NULL;
-
const char *mesg=NULL;
-
-
// Retrieve (or create) our host structure
-
host=wa_host_get(s->server_hostname,s->port);
-
if (host==NULL) {
-
mesg=wa_host_create(s->server_hostname,s->port);
-
if (mesg!=NULL) return(mesg);
-
host=wa_host_get(s->server_hostname,s->port);
-
if (host==NULL) return("Cannot retrieve host information");
-
}
-
-
// Setup the webapp name, connection and path
-
conn=wa_connection_get(cname);
-
if (conn==NULL) return("Invalid connection name specified");
-
return(wa_host_setapp(host, name, path, conn));
-
-
return (NULL);
-
-}
-
-
-
-
-
-/* ************************************************************************* */
-
-/* WEB-APPLICATION INITIALIZATION AND REQUEST HANDLING */
-
-/* ************************************************************************* */
-
-
-
-/**
-
- * "Translate" (or better, match) an HTTP request into a webapp request.
-
- *
-
- * @param r The Apache request structure.
-
- */
-
-static int webapp_translate(request_rec *r) {
-
- wa_host *host=NULL;
-
- wa_application *appl=NULL;
-
- wa_request *req=NULL;
-
-
-
- // Check if this host was recognized
-
- host=wa_host_get(r->server->server_hostname, r->server->port);
-
- if (host==NULL) return(DECLINED);
-
-
-
- // Check if the uri is contained in one of our web applications root path
-
- appl=wa_host_findapp(host, r->uri);
-
- if (appl==NULL) return(DECLINED);
-
-
-
- // The uri path is matched by the application, set the handler and return
-
- r->handler=ap_pstrdup(r->pool,"webapp-handler");
-
-
-
- // Create a new request structure
-
- req=(wa_request *)ap_palloc(r->pool,sizeof(wa_request));
-
- req->host=host;
-
- req->appl=appl;
-
-
-
- // Set the webapp request structure into Apache's request structure
-
- ap_set_module_config(r->request_config, &webapp_module, req);
-
- return(OK);
-
}
-
-/**
-
- * Handle a request thru a configured web application.
-
- *
-
- * @param r The Apache request structure.
-
- */
-
-static int webapp_handler(request_rec *r) {
-
- conn_rec *c = r->connection;
-
- const char *msg=NULL;
-
- wa_request *req=NULL;
-
- int ret=0;
-
-
-
- // Try to get a hold on the webapp request structure
-
- req=(wa_request *)ap_get_module_config(r->request_config, &webapp_module);
-
- if (req==NULL) return(DECLINED);
-
-
-
- // Set up basic parameters in the request structure
-
- req->data=r;
-
- req->meth=(char *)r->method;
-
- req->ruri=r->uri;
-
- req->args=r->args;
-
- req->prot=r->protocol;
-
- req->schm=ap_http_method(r);
-
- req->name=(char *)r->hostname;
-
- req->port=ap_get_server_port(r);
-
- req->rhst=(char *)ap_get_remote_host(c, r->per_dir_config, REMOTE_HOST);
-
- req->radr=c->remote_ip;
-
- req->user=c->user;
-
- req->auth=c->ap_auth_type;
-
- req->clen=0;
-
- req->rlen=0;
-
-
-
- // Copy headers into webapp request structure
-
- if (r->headers_in!=NULL) {
-
- array_header *arr=ap_table_elts(r->headers_in);
-
- table_entry *ele=(table_entry *)arr->elts;
-
- int count=arr->nelts;
-
- int x=0;
-
-
-
- // Allocate memory for pointers
-
- req->hnum=count;
-
- req->hnam=(char **)ap_palloc(r->pool,count*sizeof(char *));
-
- req->hval=(char **)ap_palloc(r->pool,count*sizeof(char *));
-
-
-
- // Copy header pointers one by one
-
- for (x=0; x<count;x++) {
-
- if (ele[x].key==NULL) continue;
-
- req->hnam[x]=ele[x].key;
-
- req->hval[x]=ele[x].val;
-
- if (strcasecmp(ele[x].key,"Content-Length")==0)
-
- req->clen=atol(req->hval[x]);
-
- }
-
- } else {
-
- req->hnum=0;
-
- req->hnam=NULL;
-
- req->hval=NULL;
-
- }
-
-
-
- // Check if we can read something from the request
-
- ret=ap_setup_client_block(r,REQUEST_CHUNKED_DECHUNK);
-
- if (ret!=OK) return(ret);
-
-
-
- // Try to handle the request
-
- msg=wa_request_handle(req);
-
-
-
- // We got an error message (critical error, not from providers)
-
- if (msg!=NULL) {
-
- ap_log_error(APLOG_MARK,APLOG_NOERRNO|APLOG_ERR,r->server,"%s",msg);
-
- return(HTTP_INTERNAL_SERVER_ERROR);
-
- }
-
-
-
- return OK;
-
-}
-
-
-
-/**
-
- * Initialize the webapp library.
-
- *
-
- * @param s The server_rec structure associated with the main server.
-
- * @param p The pool for memory allocation (it never gets cleaned).
-
- */
-
-static void webapp_init(server_rec *s, pool *p) {
-
- webapp_server=s;
-
- wa_init(&webapp_callbacks);
-
-}
-
-
-
-/**
-
- * Initialize webapp connections.
-
- *
-
- * @param s The server_rec structure associated with the main server.
-
- * @param p The pool for memory allocation (it never gets cleaned).
-
- */
-
-static void webapp_exit(server_rec *s, pool *p) {
-
- wa_destroy();
-
-}
-
-
-
-/* ************************************************************************* */
-
-/* WEBAPP LIBRARY CALLBACK FUNCTIONS */
-
-/* ************************************************************************* */
-
-
-
-/**
-
- * Add a component to the the current SERVER_SOFTWARE string and return the
-
- * new value.
-
- *
-
- * @param component The new component to add to the SERVER_SOFTWARE string
-
- * or NULL if no modification is necessary.
-
- * @return The updated SERVER_SOFTWARE string.
-
- */
-
-const char *webapp_callback_serverinfo(const char *component) {
-
- const char *ret=NULL;
-
-
-
- if (component!=NULL) ap_add_version_component(component);
-
-
-
- ret=ap_get_server_version();
-
- if (ret==NULL) return("Unknown");
-
- return(ret);
-
-}
-
-
-
-/**
-
- * Print a debug or log message to the apache error log file.
-
- *
-
- * @param f The source file of this log entry.
-
- * @param l The line number within the source file of this log entry.
-
- * @param r The wa_request structure associated with the current request,
-
- * or NULL.
-
- * @param msg The message to be logged.
-
- */
-
-static void webapp_callback_log(const char *f,int l,wa_request *r,char *msg) {
-
- server_rec *s=webapp_server;
-
-
-
- // Try to get the current request server_rec member.
-
- if (r!=NULL)
-
- if (r->data!=NULL)
-
- s=((request_rec *)r->data)->server;
-
-
-
- if (s==NULL) {
-
- // We don't yet know our server_rec, simply dump to stderr and hope :)
-
-#ifdef DEBUG
-
- fprintf(stderr,"[%s:%l] %s\n",f,l,msg);
-
-#else
-
- fprintf(stderr,"%s\n",msg);
-
-#endif
-
- } else {
-
-#ifdef DEBUG
-
- // We are debugging, so we want to make sure that file and line are in
-
- // our error message.
-
- ap_log_error(f,l,APLOG_NOERRNO|APLOG_ERR,s,"[%s:%l] %s",f,l,msg);
-
-#else
-
- // We are not debugging, so let Apache handle the file and line
-
- ap_log_error(f,l,APLOG_NOERRNO|APLOG_ERR,s,"%s",msg);
-
-#endif
-
- }
-
-}
-
-
-
-/**
-
- * Return the current request_rec structure from a wa_request structure and log
-
- * if we weren't able to retrieve it.
-
- *
-
- * @param f The file from where this function was called.
-
- * @param l The line from where this function was called.
-
- * @param r The wa_request structure.
-
- * @return A request_rec pointer or NULL.
-
- */
-
-static request_rec *webapp_callback_check(const char *f,int l,wa_request *r) {
-
- if (r==NULL) {
-
- webapp_callback_log(f,l,r, "Invalid wa_request member (NULL)");
-
- return(NULL);
-
- }
-
- if (r->data==NULL) {
-
- webapp_callback_log(f,l,r, "Invalid wa_request->data member (NULL)");
-
- return(NULL);
-
- }
-
- return((request_rec *)r->data);
-
-}
-
-
-
-/**
-
- * Allocate memory while processing a request.
-
- *
-
- * @param req The request member associated with this call.
-
- * @param size The size in bytes of the memory to allocate.
-
- * @return A pointer to the allocated memory or NULL.
-
- */
-
-static void *webapp_callback_alloc(wa_request *req, int size) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
-
-
- if (r==NULL) return(NULL);
-
- return(ap_palloc(r->pool,size));
-
-}
-
-
-
-/**
-
- * Read part of the request content.
-
- *
-
- * @param req The request member associated with this call.
-
- * @param buf The buffer that will hold the data.
-
- * @param len The buffer length.
-
- * @return The number of bytes read, 0 on end of file or -1 on error.
-
- */
-
-static int webapp_callback_read(wa_request *req, char *buf, int len) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
- long ret=0;
-
-
-
- if (r==NULL) return(-1);
-
-
-
- // Check if we have something to read.
-
- if (req->clen==0) return(0);
-
-
-
- // Check if we had an error previously.
-
- if (req->rlen==-1) return(-1);
-
-
-
- // Send HTTP_CONTINUE to client when we're ready to read for the first time.
-
- if (req->rlen==0)
-
- if (ap_should_client_block(r)==0) return(0);
-
-
-
- // Read some data from the client and fill the buffer.
-
- ret=ap_get_client_block(r,buf,len);
-
- if (ret==-1) {
-
- req->rlen=-1;
-
- return(-1);
-
- }
-
-
-
- // We did read some bytes, increment the current rlen counter and return.
-
- req->rlen+=ret;
-
- return((int)ret);
-
-}
-
-
-
-/**
-
- * Set the HTTP response status code.
-
- *
-
- * @param req The request member associated with this call.
-
- * @param status The HTTP status code for the response.
-
- * @return TRUE on success, FALSE otherwise
-
- */
-
-static boolean webapp_callback_setstatus(wa_request *req, int status) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
-
-
- if (r==NULL) return(FALSE);
-
-
-
- r->status=status;
-
- return(TRUE);
-
-}
-
-
-
-/**
-
- * Set the HTTP response mime content type.
-
- *
-
- * @param req The request member associated with this call.
-
- * @param type The mime content type of the HTTP response.
-
- * @return TRUE on success, FALSE otherwise
-
- */
-
-static boolean webapp_callback_settype(wa_request *req, char *type) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
- char *t="";
-
-
-
- if (r==NULL) return(FALSE);
-
- if (type!=NULL) t=ap_pstrdup(r->pool,type);
-
-
-
- r->content_type=t;
-
- ap_table_add(r->headers_out, "Content-Type", t);
-
- return(TRUE);
-
-}
-
-
-
-/**
-
- * Set an HTTP mime header.
-
- *
-
- * @param req The request member associated with this call.
-
- * @param name The mime header name.
-
- * @param value The mime header value.
-
- * @return TRUE on success, FALSE otherwise
-
- */
-
-static boolean webapp_callback_setheader(wa_request *req, char *name,
-
- char *value) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
- char *n="";
-
- char *v="";
-
-
-
- if (r==NULL) return(FALSE);
-
-
-
- if (name!=NULL) n=ap_pstrdup(r->pool,name);
-
- if (value!=NULL) v=ap_pstrdup(r->pool,value);
-
-
-
- ap_table_add(r->headers_out,n,v);
-
- return(TRUE);
-
-}
-
-
-
-/**
-
- * Commit the first part of the response (status and headers).
-
- *
-
- * @param req The request member associated with this call.
-
- * @return TRUE on success, FALSE otherwise
-
- */
-
-static boolean webapp_callback_commit(wa_request *req) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
-
-
- if (r==NULL) return(FALSE);
-
-
-
- ap_send_http_header(r);
-
- return(TRUE);
-
-}
-
-
-
-/**
-
- * Write part of the response data back to the client.
-
- *
-
- * @param req The request member associated with this call.
-
- * @param len The number of characters to be written.
-
- * @return The number of characters written to the client or -1 on error.
-
- */
-
-static int webapp_callback_write(wa_request *req, char *buf, int len) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
-
-
- if (r==NULL) return(-1);
-
-
-
- return(ap_rwrite(buf, len, r));
-
-}
-
-
-
-/**
-
- * Flush any unwritten response data to the client.
-
- *
-
- * @param req The request member associated with this call.
-
- * @return TRUE on success, FALSE otherwise
-
- */
-
-static boolean webapp_callback_flush(wa_request *req) {
-
- request_rec *r=webapp_callback_check(WA_LOG,req);
-
-
-
- if (r==NULL) return(FALSE);
-
-
-
- ap_rflush(r);
-
- return(TRUE);
-
-}
-
-
-
-
-
-/* ************************************************************************* */
-
-/* STRUCTURES, FUNCTIONS AND DATA POINTERS */
-
-/* ************************************************************************* */
-
-
-
-/* Our callback functions structure */
-
-static wa_callback webapp_callbacks = {
-
- webapp_callback_serverinfo,
-
- webapp_callback_log,
-
- webapp_callback_alloc,
-
- webapp_callback_read,
-
- webapp_callback_setstatus,
-
- webapp_callback_settype,
-
- webapp_callback_setheader,
-
- webapp_callback_commit,
-
- webapp_callback_write,
-
- webapp_callback_flush,
-
-};
-
-
-
-/* List of all available configuration directives */
-
-static const command_rec webapp_commands[] = {
-
- {
-
- "WebAppConnection", // directive name
-
- webapp_config_connection, // config action routine
-
- NULL, // argument to include in call
-
- RSRC_CONF, // where available
-
- TAKE23, // arguments
-
- "<name> <connector> [optional parameter]"
-
- }, {
-
- "WebAppMount", // directive name
-
- webapp_config_mount, // config action routine
-
- NULL, // argument to include in call
-
- RSRC_CONF, // where available
-
- TAKE3, // arguments
-
- "<name> <connection> <uri-path>"
-
- }, {NULL}
-
-};
-
-
-
-/* List of all available Apache handlers */
-
-static const handler_rec webapp_handlers[] = {
-
- {"webapp-handler", webapp_handler},
-
- {NULL}
-
-};
-
-
-
/* Apache module declaration */
-
module webapp_module = {
-
STANDARD_MODULE_STUFF,
-
NULL, /* module initializer */
-
NULL, /* per-directory config creator */
-
NULL, /* dir config merger */
-
NULL, /* server config creator */
-
NULL, /* server config merger */
-
- webapp_commands, /* command table */
-
- webapp_handlers, /* [9] list of handlers */
-
- webapp_translate, /* [2] filename-to-URI translation */
-
+ NULL, //webapp_commands, /* command table */
+ NULL, //webapp_handlers, /* [9] list of handlers */
+ NULL, //webapp_translate, /* [2] filename-to-URI translation
*/
NULL, /* [5] check/validate user_id */
-
NULL, /* [6] check user_id is valid *here* */
-
NULL, /* [4] check access by host address */
-
NULL, /* [7] MIME type checker/setter */
-
NULL, /* [8] fixups */
-
NULL, /* [10] logger */
-
NULL, /* [3] header parser */
-
- webapp_init, /* child initializer */
-
- webapp_exit, /* child exit/cleanup */
-
+ NULL, //webapp_init, /* child initializer */
+ NULL, //webapp_exit, /* child exit/cleanup */
NULL /* [1] post read_request handling */
-
};
-
