src/server/httprequest.c

changeset 14
b8bf95b39952
parent 13
1fdbf4170ef4
child 15
cff9c4101dd7
--- a/src/server/httprequest.c	Sun Jan 08 15:46:47 2012 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,532 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 2011 Olaf Wintermann. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *   1. Redistributions of source code must retain the above copyright
- *      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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS 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 COPYRIGHT HOLDER OR 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.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-
-#include "nsapi.h"
-#include "pool.h"
-#include "pblock.h"
-#include "io.h"
-#include "util.h"
-#include "httprequest.h"
-#include "conf.h"
-#include "vserver.h"
-
-HTTPRequest *http_request_new() {
-    HTTPRequest *req = malloc(sizeof(HTTPRequest));
-    req->connection = NULL;
-    req->uri.ptr = NULL;
-
-    HeaderArray *hd = malloc(sizeof(HeaderArray));
-    hd->next = NULL;
-    hd->len = 0;
-    hd->headers = calloc(16, sizeof(Header));
-    hd->alloc = 16;
-
-    req->headers = hd;
-
-    return req;
-}
-
-int handle_request(HTTPRequest *request) {
-    // handle nsapi request
-
-    // create pool
-    request->pool = pool_create();
-
-    // create nsapi data structures
-    NSAPISession *sn = malloc(sizeof(NSAPISession));
-    NSAPIRequest *rq = malloc(sizeof(NSAPIRequest));
-    request->rq = rq;
-    rq->phase = NSAPIAuthTrans;
-
-    // fill session structure
-    sn->sys_fd = request->connection->fd;
-    sn->sn.pool = pool_create();
-    sn->sn.csd = stream_new_from_fd(request->connection->fd);
-    sn->sn.client = pblock_create_pool(sn->sn.pool, 8);
-    sn->sn.next = NULL;
-    sn->sn.fill = 1;
-    sn->sn.subject = NULL;
-
-    /* add ip to sn->client pblock */
-    char ip_str[INET_ADDRSTRLEN];
-    if(inet_ntop(
-            AF_INET,
-            &request->connection->address.sin_addr,
-            ip_str,
-            INET_ADDRSTRLEN) != NULL)
-    {
-        pblock_kvinsert(pb_key_ip, ip_str, INET_ADDRSTRLEN, sn->sn.client);
-    }
-
-    // init NSAPI request structure
-    if(request_initialize(request->pool, request, rq) != 0) {
-        printf("Cannot initialize request structure\n");
-        return 1;
-    }
-
-    // set default virtual server
-    rq->vs = conf_get_default_vs();
-
-
-    /* Pass request line as "clf-request" */
-    pblock_kvinsert(
-            pb_key_clf_request,
-            request->request_line.ptr,
-            request->request_line.length,
-            rq->rq.reqpb);
-
-    /* Pass method as "method" in reqpb, and also as method_num */
-    pblock_kvinsert(
-            pb_key_method,
-            request->method.ptr,
-            request->method.length,
-            rq->rq.reqpb);
-    // TODO: method num
-    //rqRq.rq.method_num = rqHdr->GetMethodNumber();
-    //PR_ASSERT(rqRq.rq.method_num != -1 || iStatus);
-    
-    /* Pass protocol as "protocol" in reqpb, and also in protv_num */
-    pblock_kvinsert(
-            pb_key_protocol,
-            request->httpv.ptr,
-            request->httpv.length,
-            rq->rq.reqpb);
-    // TODO: protocol num
-
-    /* Pass any query as "query" in reqpb */
-    // TODO: query
-
-    /* Get abs_path part of request URI, and canonicalize the path */
-    sstr_t absPath = request->uri;
-    // TODO: get abs_path
-    absPath.ptr = util_canonicalize_uri(
-            request->pool,
-            absPath.ptr,
-            absPath.length,
-            (int*)&absPath.length);
-
-    /* Decode the abs_path */
-    // TODO: decode abs_path
-
-    /* Pass the abs_path as "uri" in reqpb */
-    // TODO: pass abs_path to reqpb
-    // TODO: replace this code
-    pblock_kvinsert(
-            pb_key_uri,
-            absPath.ptr,
-            absPath.length,
-            rq->rq.reqpb);
-
-    // pass http header to the NSAPI request structure
-    int         hlen = request->headers->len;
-    HeaderArray *ha  = request->headers;
-    for(int i=0;i<=hlen;i++) {
-        if(i == hlen) {
-            ha = ha->next;
-            if(ha == NULL) {
-                break;
-            }
-            i = 0;
-            hlen = ha->len;
-        }
-
-        if(ha->headers[i].name[0] < 90) {
-            ha->headers[i].name[0] += 32;
-        }
-        pblock_nvinsert(ha->headers[i].name, ha->headers[i].value, rq->rq.headers);
-    }
-
-    /* check for request body and prepare input buffer */
-    char *ctlen_str = pblock_findkeyval(pb_key_content_length, rq->rq.headers);
-    if(ctlen_str) {
-        int ctlen = atoi(ctlen_str);
-        
-        printf("request body length: %d\n", ctlen);
-
-        netbuf *nb = request->netbuf;
-
-        /* create new netbuf */
-        NetIOStream *net_io = (NetIOStream*)net_stream_from_fd(
-                request->connection->fd);
-        net_io->max_read = ctlen;
-
-        sn->sn.inbuf = malloc(sizeof(netbuf));
-        sn->sn.inbuf->sd = net_io;
-        sn->sn.inbuf->pos = 0;
-        
-        /* prepare buffer */
-        int cur_input_len = nb->cursize - nb->pos;
-        if(cur_input_len >= ctlen) {
-
-            /*
-             * all data is already in the primary input buffer
-             * just link the new netbuf to the primary buffer
-             */
-            sn->sn.inbuf->maxsize = ctlen;
-            sn->sn.inbuf->cursize = ctlen;
-            sn->sn.inbuf->inbuf = nb->inbuf + nb->pos;
-        } else {
-            sn->sn.inbuf->maxsize = (ctlen > 2048) ? (2048) : (ctlen);
-            sn->sn.inbuf->inbuf = malloc(sizeof(sn->sn.inbuf->maxsize));
-
-            if(cur_input_len > 0) {
-                /* we have read a part of the request body -> copy to netbuf */
-                memcpy(sn->sn.inbuf->inbuf, nb->inbuf+nb->pos, cur_input_len);
-            }
-
-            sn->sn.inbuf->cursize = cur_input_len;
-        }
-    } else {
-        sn->sn.inbuf = NULL;
-    }
-
-
-    // Send the request to the NSAPI system
-    nsapi_handle_request(sn, rq);
-
-    return 0;
-}
-
-
-
-void header_add(HeaderArray *hd, char *name, char *value) {
-    while(hd->len >= hd->alloc) {
-        if(hd->next == NULL) {
-            HeaderArray *block = malloc(sizeof(HeaderArray));
-            block->next = NULL;
-            block->len = 0;
-            block->headers = calloc(16, sizeof(Header));
-            block->alloc = 16;
-            hd->next = block;
-        }
-        hd = hd->next;
-    }
-    hd->headers[hd->len].name = name;
-    hd->headers[hd->len].value = value;
-    hd->len++;
-}
-
-
-/*
- * NSAPI Processing
- * TODO: add this to new file
- */
-
-int nsapi_handle_request(NSAPISession *sn, NSAPIRequest *rq) {
-    // TODO: threadpool
-
-    int r = REQ_NOACTION;
-
-    do {
-        switch(rq->phase) {
-            case NSAPIAuthTrans: {
-                rq->phase++;
-                nsapi_context_next_stage(&rq->context);
-            }
-            case NSAPINameTrans: {
-                printf(">>> NameTrans\n");
-                r = nsapi_nametrans(sn, rq);
-                if(r != REQ_PROCEED) {
-                    break;
-                }
-                rq->phase++;
-                nsapi_context_next_stage(&rq->context);
-            }
-            case NSAPIPathCheck: {
-                printf(">>> PathCheck\n");
-                rq->phase++;
-                nsapi_context_next_stage(&rq->context);
-            }
-            case NSAPIObjectType: {
-                printf(">>> ObjectType\n");
-                r = nsapi_objecttype(sn, rq);
-                if(r != REQ_PROCEED) {
-                    break;
-                }
-                rq->phase++;
-                nsapi_context_next_stage(&rq->context);
-            }
-            case NSAPIService: {
-                printf(">>> Service\n");
-                r = nsapi_service(sn, rq);
-                if(r != REQ_PROCEED) {
-                    break;
-                }
-                rq->phase++;
-                nsapi_context_next_stage(&rq->context);
-            }
-            case NSAPIAddLog: {
-                printf(">>> AddLog\n");
-                rq->phase++;
-                nsapi_context_next_stage(&rq->context);
-            }
-            case REQ_FINISH: {
-                printf(">>> Finish\n");
-                r = nsapi_finish_request(sn, rq);
-            }
-        }
-    } while (r == REQ_RESTART);
-
-
-    return r;
-}
-
-int nsapi_finish_request(NSAPISession *sn, NSAPIRequest *rq) {
-    // TODO: free memory
-    close(sn->sys_fd);
-
-    return 0;
-}
-
-int nsapi_nametrans(NSAPISession *sn, NSAPIRequest *rq) {
-    HTTPObjectConfig *objconf = rq->vs->objects;
-    printf("nsapi_nametrans\n");
-    httpd_objset *objset = objset_create(sn->sn.pool);
-    rq->rq.os = objset;
-    /* first object in objconf is the default object  TODO: make sure it is */
-    objset_add_object(sn->sn.pool, objset, objconf->objects[0]);
-
-    httpd_object *obj = objset->obj[0]; /* nametrans only in default object */
-    dtable *dt = object_get_dtable(obj, NSAPINameTrans);
-
-    /* execute directives */
-    int ret = rq->context.last_req_code;
-    char *name = NULL;
-    char *ppath = NULL;
-    for(int i=NCX_DI(rq);i<dt->ndir;i++) {
-        directive *d = dt->dirs[i];
-
-        ret = d->func->func(d->param, (Session*)sn, (Request*)rq);
-
-        /* check for name or ppath */
-        name = pblock_findkeyval(pb_key_name, rq->rq.vars);
-        ppath = pblock_findkeyval(pb_key_ppath, rq->rq.vars);
-
-        /* add additional objects to the objset */
-        if(add_objects(objconf, objset, sn, rq, name, ppath) == REQ_ABORTED) {
-            fprintf(stderr, "add_objects failed\n");
-            return REQ_ABORTED;
-        }
-
-        if(ret != REQ_NOACTION) {
-            /*
-             * if a saf is still processing, we need to save the context, to
-             * process this object at a later time
-             */
-            if(ret == REQ_PROCESSING) {
-                /* save nsapi context */
-                /* add +1 to start next round with next function */
-                rq->context.dtable_index = i + 1;
-            }
-
-            return ret;
-        }
-    }
-
-    /* if no function has set the ppath var, translate it to docroot */
-    if(ret == REQ_NOACTION && ppath == NULL) {
-        sstr_t docroot = rq->vs->document_root;
-        if(docroot.length < 1) {
-            printf("docroot too short\n");
-            return REQ_ABORTED; /* docroot too short */
-        }
-        /* if there is a trailing '/', remove it */
-        if(docroot.ptr[docroot.length - 1] == '/') {
-            docroot.length--;
-        }
-
-        sstr_t uri = sstr(pblock_findkeyval(pb_key_uri, rq->rq.reqpb));
-
-        sstr_t translated;
-        translated.length = docroot.length + uri.length;
-        translated.ptr = alloca(translated.length + 1);
-        translated = sstrncat(2, translated, docroot, uri);
-
-        pblock_kvinsert(
-            pb_key_ppath,
-            translated.ptr,
-            translated.length,
-            rq->rq.vars);
-    }
-
-    return REQ_PROCEED;
-}
-
-int nsapi_objecttype(NSAPISession *sn, NSAPIRequest *rq) {
-    printf("nsapi_objecttype\n");
-    httpd_objset *objset = rq->rq.os;
-
-    if(NCX_OI(rq) == -1) {
-        /* object index is undefined -> define correct object index */
-        NCX_OI(rq) = objset->pos - 1;
-    }
-
-    int ret = rq->context.last_req_code;
-    for(int i=NCX_OI(rq);i>=0;i--) {
-        httpd_object *obj = objset->obj[i];
-        dtable *dt = object_get_dtable(obj, NSAPIObjectType);
-
-        // execute directives
-        for(int j=0;j<dt->ndir;j++) {
-            directive *d = dt->dirs[j];
-
-            ret = d->func->func(d->param, (Session*)sn, (Request*)rq);
-            switch(ret) {
-                case REQ_PROCEED: {
-                    char *type = pblock_findkeyval(
-                            pb_key_content_type,
-                            rq->rq.srvhdrs);
-                    if(type == NULL) {
-                        ret = REQ_NOACTION;
-                        break;
-                    }
-                    return ret;
-                }
-                case REQ_PROCESSING: {
-                    /* save nsapi context */
-                    rq->context.objset_index = i;
-
-                    /* add +1 to start next round with next function */
-                    rq->context.dtable_index = j + 1;
-                    return ret;
-                }
-                case REQ_NOACTION: {
-                    break;
-                }
-                default: {
-                    return ret;
-                }
-            }
-        }
-    }
-
-    /*
-     * No function returned with REQ_PROCEED, but we need a content type.
-     * If the path ends with a '/', we set the content type to
-     * 'internal/directory' so that 'index-common' can serve the content.
-     * Otherwise we set the content type to text/plain
-     */
-    sstr_t path = sstr(pblock_findkeyval(pb_key_ppath, rq->rq.vars));
-    sstr_t ct;
-    if(path.ptr[path.length - 1] == '/') {
-        /* directory */
-        ct = sstrn("internal/directory", 18);
-    } else {
-        ct = sstrn("text/plain", 10);
-    }
-    pblock_kvinsert(pb_key_content_type, ct.ptr, ct.length, rq->rq.srvhdrs);
-
-    return REQ_PROCEED;
-}
-
-int nsapi_service(NSAPISession *sn, NSAPIRequest *rq) {
-    printf("nsapi_service\n");
-    httpd_objset *objset = rq->rq.os;
-
-    if(NCX_OI(rq) == -1) {
-        NCX_OI(rq) = objset->pos - 1;
-    }
-
-    int ret = rq->context.last_req_code;
-    char *content_type = NULL;
-    for(int i=NCX_OI(rq);i>=0;i--) {
-        httpd_object *obj = objset->obj[i];   
-        dtable *dt = object_get_dtable(obj, NSAPIService);
-
-        // execute directives
-        for(int j=0;j<dt->ndir;j++) {
-            directive *d = dt->dirs[j];
-
-            /* check type parameter */           
-            char *dtp = pblock_findkeyval(pb_key_type, d->param);
-            if(dtp) {
-                /* type parameter for directive */
-                if(!content_type) {
-                    content_type = pblock_findkeyval(
-                            pb_key_content_type,
-                            rq->rq.srvhdrs);
-                }
-                /* compare types */
-                if(strcmp(dtp, content_type) != 0) {
-                    continue;
-                }
-            }
-
-            ret = d->func->func(d->param, (Session*)sn, (Request*)rq);
-            if(ret != REQ_NOACTION) {
-                if(ret == REQ_PROCESSING) {
-                    /* save nsapi context */
-                    rq->context.objset_index = i;
-
-                    /* add +1 to start next round with next function */
-                    rq->context.dtable_index = j + 1;
-                }
-
-                return ret;
-            }
-        }
-    }
-
-    return ret;
-}
-
-/*
- * adds objects with specific name or path to the httpd_objset
- */
-int add_objects(
-        HTTPObjectConfig *objs,
-        httpd_objset *os,
-        NSAPISession *sn,
-        NSAPIRequest *rq,
-        char *name,
-        char *path)
-{
-    /* first, add all objects with a matching path */
-    /* TODO */
-
-
-    /* add object with object with matching name */
-    if(name == NULL) {
-        return REQ_PROCEED;
-    }
-
-    for(int i=0;i<objs->nobj;i++) {
-        httpd_object *obj = objs->objects[i];
-
-        if(obj->name && !strcmp(name, obj->name)) {
-            printf("name is %s -> add object %s\n", name, obj->name);
-            objset_add_object(sn->sn.pool, os, obj);
-        }
-    } 
-
-    return REQ_PROCEED;
-}

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