| /* 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. |
| */ |
| |
| #include "ajp_header.h" |
| #include "ajp.h" |
| |
| static const char *response_trans_headers[] = { |
| "Content-Type", |
| "Content-Language", |
| "Content-Length", |
| "Date", |
| "Last-Modified", |
| "Location", |
| "Set-Cookie", |
| "Set-Cookie2", |
| "Servlet-Engine", |
| "Status", |
| "WWW-Authenticate" |
| }; |
| |
| static const char *long_res_header_for_sc(int sc) |
| { |
| const char *rc = NULL; |
| sc = sc & 0X00FF; |
| if(sc <= SC_RES_HEADERS_NUM && sc > 0) { |
| rc = response_trans_headers[sc - 1]; |
| } |
| |
| return rc; |
| } |
| |
| #define UNKNOWN_METHOD (-1) |
| |
| static int sc_for_req_header(const char *header_name) |
| { |
| char header[16]; |
| apr_size_t len = strlen(header_name); |
| const char *p = header_name; |
| int i = 0; |
| |
| /* ACCEPT-LANGUAGE is the longest header |
| * that is of interest. |
| */ |
| if (len < 4 || len > 15) |
| return UNKNOWN_METHOD; |
| |
| while (*p) |
| header[i++] = apr_toupper(*p++); |
| header[i] = '\0'; |
| p = &header[1]; |
| |
| switch (header[0]) { |
| case 'A': |
| if (memcmp(p, "CCEPT", 5) == 0) { |
| if (!header[6]) |
| return SC_ACCEPT; |
| else if (header[6] == '-') { |
| p += 6; |
| if (strcmp(p, "CHARSET") == 0) |
| return SC_ACCEPT_CHARSET; |
| else if (strcmp(p, "ENCODING") == 0) |
| return SC_ACCEPT_ENCODING; |
| else if (strcmp(p, "LANGUAGE") == 0) |
| return SC_ACCEPT_LANGUAGE; |
| else |
| return UNKNOWN_METHOD; |
| } |
| else |
| return UNKNOWN_METHOD; |
| } |
| else if (strcmp(p, "UTHORIZATION") == 0) |
| return SC_AUTHORIZATION; |
| else |
| return UNKNOWN_METHOD; |
| break; |
| case 'C': |
| if(strcmp(p, "OOKIE2") == 0) |
| return SC_COOKIE2; |
| else if (strcmp(p, "OOKIE") == 0) |
| return SC_COOKIE; |
| else if(strcmp(p, "ONNECTION") == 0) |
| return SC_CONNECTION; |
| else if(strcmp(p, "ONTENT-TYPE") == 0) |
| return SC_CONTENT_TYPE; |
| else if(strcmp(p, "ONTENT-LENGTH") == 0) |
| return SC_CONTENT_LENGTH; |
| else |
| return UNKNOWN_METHOD; |
| break; |
| case 'H': |
| if(strcmp(p, "OST") == 0) |
| return SC_HOST; |
| else |
| return UNKNOWN_METHOD; |
| break; |
| case 'P': |
| if(strcmp(p, "RAGMA") == 0) |
| return SC_PRAGMA; |
| else |
| return UNKNOWN_METHOD; |
| break; |
| case 'R': |
| if(strcmp(p, "EFERER") == 0) |
| return SC_REFERER; |
| else |
| return UNKNOWN_METHOD; |
| break; |
| case 'U': |
| if(strcmp(p, "SER-AGENT") == 0) |
| return SC_USER_AGENT; |
| else |
| return UNKNOWN_METHOD; |
| break; |
| default: |
| return UNKNOWN_METHOD; |
| } |
| |
| /* NOTREACHED */ |
| } |
| |
| /* Apache method number to SC methods transform table */ |
| static const unsigned char sc_for_req_method_table[] = { |
| SC_M_GET, |
| SC_M_PUT, |
| SC_M_POST, |
| SC_M_DELETE, |
| 0, /* M_DELETE */ |
| SC_M_OPTIONS, |
| SC_M_TRACE, |
| 0, /* M_PATCH */ |
| SC_M_PROPFIND, |
| SC_M_PROPPATCH, |
| SC_M_MKCOL, |
| SC_M_COPY, |
| SC_M_MOVE, |
| SC_M_LOCK, |
| SC_M_UNLOCK, |
| SC_M_VERSION_CONTROL, |
| SC_M_CHECKOUT, |
| SC_M_UNCHECKOUT, |
| SC_M_CHECKIN, |
| SC_M_UPDATE, |
| SC_M_LABEL, |
| SC_M_REPORT, |
| SC_M_MKWORKSPACE, |
| SC_M_MKACTIVITY, |
| SC_M_BASELINE_CONTROL, |
| SC_M_MERGE, |
| 0 /* M_INVALID */ |
| }; |
| |
| static int sc_for_req_method_by_id(request_rec *r) |
| { |
| int method_id = r->method_number; |
| if (method_id < 0 || method_id > M_INVALID) { |
| return UNKNOWN_METHOD; |
| } |
| else if (r->header_only) { |
| return SC_M_HEAD; |
| } |
| else { |
| return sc_for_req_method_table[method_id] ? |
| sc_for_req_method_table[method_id] : UNKNOWN_METHOD; |
| } |
| } |
| |
| /* |
| * Message structure |
| * |
| * |
| AJPV13_REQUEST/AJPV14_REQUEST= |
| request_prefix (1) (byte) |
| method (byte) |
| protocol (string) |
| req_uri (string) |
| remote_addr (string) |
| remote_host (string) |
| server_name (string) |
| server_port (short) |
| is_ssl (boolean) |
| num_headers (short) |
| num_headers*(req_header_name header_value) |
| |
| ?context (byte)(string) |
| ?servlet_path (byte)(string) |
| ?remote_user (byte)(string) |
| ?auth_type (byte)(string) |
| ?query_string (byte)(string) |
| ?jvm_route (byte)(string) |
| ?ssl_cert (byte)(string) |
| ?ssl_cipher (byte)(string) |
| ?ssl_session (byte)(string) |
| ?ssl_key_size (byte)(int) via JkOptions +ForwardKeySize |
| request_terminator (byte) |
| ?body content_length*(var binary) |
| |
| */ |
| |
| static apr_status_t ajp_marshal_into_msgb(ajp_msg_t *msg, |
| request_rec *r, |
| apr_uri_t *uri) |
| { |
| int method; |
| apr_uint32_t i, num_headers = 0; |
| apr_byte_t is_ssl; |
| char *remote_host; |
| const char *session_route, *envvar; |
| const apr_array_header_t *arr = apr_table_elts(r->subprocess_env); |
| const apr_table_entry_t *elts = (const apr_table_entry_t *)arr->elts; |
| |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "Into ajp_marshal_into_msgb"); |
| |
| if ((method = sc_for_req_method_by_id(r)) == UNKNOWN_METHOD) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb - No such method %s", |
| r->method); |
| return AJP_EBAD_METHOD; |
| } |
| |
| is_ssl = (apr_byte_t) ap_proxy_conn_is_https(r->connection); |
| |
| if (r->headers_in && apr_table_elts(r->headers_in)) { |
| const apr_array_header_t *t = apr_table_elts(r->headers_in); |
| num_headers = t->nelts; |
| } |
| |
| remote_host = (char *)ap_get_remote_host(r->connection, r->per_dir_config, REMOTE_HOST, NULL); |
| |
| ajp_msg_reset(msg); |
| |
| if (ajp_msg_append_uint8(msg, CMD_AJP13_FORWARD_REQUEST) || |
| ajp_msg_append_uint8(msg, (apr_byte_t) method) || |
| ajp_msg_append_string(msg, r->protocol) || |
| ajp_msg_append_string(msg, uri->path) || |
| ajp_msg_append_string(msg, r->connection->remote_ip) || |
| ajp_msg_append_string(msg, remote_host) || |
| ajp_msg_append_string(msg, ap_get_server_name(r)) || |
| ajp_msg_append_uint16(msg, (apr_uint16_t)r->connection->local_addr->port) || |
| ajp_msg_append_uint8(msg, is_ssl) || |
| ajp_msg_append_uint16(msg, (apr_uint16_t) num_headers)) { |
| |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the message begining"); |
| return APR_EGENERAL; |
| } |
| |
| for (i = 0 ; i < num_headers ; i++) { |
| int sc; |
| const apr_array_header_t *t = apr_table_elts(r->headers_in); |
| const apr_table_entry_t *elts = (apr_table_entry_t *)t->elts; |
| |
| if ((sc = sc_for_req_header(elts[i].key)) != UNKNOWN_METHOD) { |
| if (ajp_msg_append_uint16(msg, (apr_uint16_t)sc)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the header name"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| else { |
| if (ajp_msg_append_string(msg, elts[i].key)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the header name"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| |
| if (ajp_msg_append_string(msg, elts[i].val)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the header value"); |
| return AJP_EOVERFLOW; |
| } |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_marshal_into_msgb: Header[%d] [%s] = [%s]", |
| i, elts[i].key, elts[i].val); |
| } |
| |
| /* XXXX need to figure out how to do this |
| if (s->secret) { |
| if (ajp_msg_append_uint8(msg, SC_A_SECRET) || |
| ajp_msg_append_string(msg, s->secret)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "Error ajp_marshal_into_msgb - " |
| "Error appending secret"); |
| return APR_EGENERAL; |
| } |
| } |
| */ |
| |
| if (r->user) { |
| if (ajp_msg_append_uint8(msg, SC_A_REMOTE_USER) || |
| ajp_msg_append_string(msg, r->user)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the remote user"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| if (r->ap_auth_type) { |
| if (ajp_msg_append_uint8(msg, SC_A_AUTH_TYPE) || |
| ajp_msg_append_string(msg, r->ap_auth_type)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the auth type"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| /* XXXX ebcdic (args converted?) */ |
| if (uri->query) { |
| if (ajp_msg_append_uint8(msg, SC_A_QUERY_STRING) || |
| ajp_msg_append_string(msg, uri->query)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the query string"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| if ((session_route = apr_table_get(r->notes, "session-route"))) { |
| if (ajp_msg_append_uint8(msg, SC_A_JVM_ROUTE) || |
| ajp_msg_append_string(msg, session_route)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the jvm route"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| /* XXX: Is the subprocess_env a right place? |
| * <Location /examples> |
| * ProxyPass ajp://remote:8009/servlets-examples |
| * SetEnv SSL_SESSION_ID CUSTOM_SSL_SESSION_ID |
| * </Location> |
| */ |
| /* |
| * Only lookup SSL variables if we are currently running HTTPS. |
| * Furthermore ensure that only variables get set in the AJP message |
| * that are not NULL and not empty. |
| */ |
| if (is_ssl) { |
| if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r, |
| AJP13_SSL_CLIENT_CERT_INDICATOR)) |
| && envvar[0]) { |
| if (ajp_msg_append_uint8(msg, SC_A_SSL_CERT) |
| || ajp_msg_append_string(msg, envvar)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the SSL certificates"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| |
| if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r, |
| AJP13_SSL_CIPHER_INDICATOR)) |
| && envvar[0]) { |
| if (ajp_msg_append_uint8(msg, SC_A_SSL_CIPHER) |
| || ajp_msg_append_string(msg, envvar)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the SSL ciphers"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| |
| if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r, |
| AJP13_SSL_SESSION_INDICATOR)) |
| && envvar[0]) { |
| if (ajp_msg_append_uint8(msg, SC_A_SSL_SESSION) |
| || ajp_msg_append_string(msg, envvar)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the SSL session"); |
| return AJP_EOVERFLOW; |
| } |
| } |
| |
| /* ssl_key_size is required by Servlet 2.3 API */ |
| if ((envvar = ap_proxy_ssl_val(r->pool, r->server, r->connection, r, |
| AJP13_SSL_KEY_SIZE_INDICATOR)) |
| && envvar[0]) { |
| |
| if (ajp_msg_append_uint8(msg, SC_A_SSL_KEY_SIZE) |
| || ajp_msg_append_uint16(msg, (unsigned short) atoi(envvar))) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "Error ajp_marshal_into_msgb - " |
| "Error appending the SSL key size"); |
| return APR_EGENERAL; |
| } |
| } |
| } |
| /* Forward the remote port information, which was forgotten |
| * from the builtin data of the AJP 13 protocol. |
| * Since the servlet spec allows to retrieve it via getRemotePort(), |
| * we provide the port to the Tomcat connector as a request |
| * attribute. Modern Tomcat versions know how to retrieve |
| * the remote port from this attribute. |
| */ |
| { |
| const char *key = SC_A_REQ_REMOTE_PORT; |
| char *val = apr_itoa(r->pool, r->connection->remote_addr->port); |
| if (ajp_msg_append_uint8(msg, SC_A_REQ_ATTRIBUTE) || |
| ajp_msg_append_string(msg, key) || |
| ajp_msg_append_string(msg, val)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending attribute %s=%s", |
| key, val); |
| return AJP_EOVERFLOW; |
| } |
| } |
| /* Use the environment vars prefixed with AJP_ |
| * and pass it to the header striping that prefix. |
| */ |
| for (i = 0; i < (apr_uint32_t)arr->nelts; i++) { |
| if (!strncmp(elts[i].key, "AJP_", 4)) { |
| if (ajp_msg_append_uint8(msg, SC_A_REQ_ATTRIBUTE) || |
| ajp_msg_append_string(msg, elts[i].key + 4) || |
| ajp_msg_append_string(msg, elts[i].val)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending attribute %s=%s", |
| elts[i].key, elts[i].val); |
| return AJP_EOVERFLOW; |
| } |
| } |
| } |
| |
| if (ajp_msg_append_uint8(msg, SC_A_ARE_DONE)) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_marshal_into_msgb: " |
| "Error appending the message end"); |
| return AJP_EOVERFLOW; |
| } |
| |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_marshal_into_msgb: Done"); |
| return APR_SUCCESS; |
| } |
| |
| /* |
| AJPV13_RESPONSE/AJPV14_RESPONSE:= |
| response_prefix (2) |
| status (short) |
| status_msg (short) |
| num_headers (short) |
| num_headers*(res_header_name header_value) |
| *body_chunk |
| terminator boolean <! -- recycle connection or not --> |
| |
| req_header_name := |
| sc_req_header_name | (string) |
| |
| res_header_name := |
| sc_res_header_name | (string) |
| |
| header_value := |
| (string) |
| |
| body_chunk := |
| length (short) |
| body length*(var binary) |
| |
| */ |
| |
| static int addit_dammit(void *v, const char *key, const char *val) |
| { |
| apr_table_addn(v, key, val); |
| return 1; |
| } |
| |
| static apr_status_t ajp_unmarshal_response(ajp_msg_t *msg, |
| request_rec *r, |
| proxy_dir_conf *dconf) |
| { |
| apr_uint16_t status; |
| apr_status_t rc; |
| const char *ptr; |
| apr_uint16_t num_headers; |
| int i; |
| |
| rc = ajp_msg_get_uint16(msg, &status); |
| |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_unmarshal_response: Null status"); |
| return rc; |
| } |
| r->status = status; |
| |
| rc = ajp_msg_get_string(msg, &ptr); |
| if (rc == APR_SUCCESS) { |
| #if APR_CHARSET_EBCDIC /* copy only if we have to */ |
| ptr = apr_pstrdup(r->pool, ptr); |
| ap_xlate_proto_from_ascii(ptr, strlen(ptr)); |
| #endif |
| r->status_line = apr_psprintf(r->pool, "%d %s", status, ptr); |
| } else { |
| r->status_line = NULL; |
| } |
| |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_unmarshal_response: status = %d", status); |
| |
| rc = ajp_msg_get_uint16(msg, &num_headers); |
| if (rc == APR_SUCCESS) { |
| apr_table_t *save_table; |
| |
| /* First, tuck away all already existing cookies */ |
| /* |
| * Could optimize here, but just in case we want to |
| * also save other headers, keep this logic. |
| */ |
| save_table = apr_table_make(r->pool, num_headers + 2); |
| apr_table_do(addit_dammit, save_table, r->headers_out, |
| "Set-Cookie", NULL); |
| r->headers_out = save_table; |
| } else { |
| r->headers_out = NULL; |
| num_headers = 0; |
| } |
| |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_unmarshal_response: Number of headers is = %d", |
| num_headers); |
| |
| for(i = 0 ; i < (int) num_headers ; i++) { |
| apr_uint16_t name; |
| const char *stringname; |
| const char *value; |
| rc = ajp_msg_peek_uint16(msg, &name); |
| if (rc != APR_SUCCESS) { |
| return rc; |
| } |
| |
| if ((name & 0XFF00) == 0XA000) { |
| ajp_msg_get_uint16(msg, &name); |
| stringname = long_res_header_for_sc(name); |
| if (stringname == NULL) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_unmarshal_response: " |
| "No such sc (%08x)", |
| name); |
| return AJP_EBAD_HEADER; |
| } |
| } else { |
| name = 0; |
| rc = ajp_msg_get_string(msg, &stringname); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_unmarshal_response: " |
| "Null header name"); |
| return rc; |
| } |
| ap_xlate_proto_from_ascii(stringname, strlen(stringname)); |
| } |
| |
| rc = ajp_msg_get_string(msg, &value); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_unmarshal_response: " |
| "Null header value"); |
| return rc; |
| } |
| |
| /* Set-Cookie need additional processing */ |
| if (!strcasecmp(stringname, "Set-Cookie")) { |
| value = ap_proxy_cookie_reverse_map(r, dconf, value); |
| } |
| /* Location, Content-Location, URI and Destination need additional |
| * processing */ |
| else if (!strcasecmp(stringname, "Location") |
| || !strcasecmp(stringname, "Content-Location") |
| || !strcasecmp(stringname, "URI") |
| || !strcasecmp(stringname, "Destination")) |
| { |
| value = ap_proxy_location_reverse_map(r, dconf, value); |
| } |
| |
| ap_xlate_proto_from_ascii(value, strlen(value)); |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_unmarshal_response: Header[%d] [%s] = [%s]", |
| i, stringname, value); |
| |
| apr_table_add(r->headers_out, stringname, value); |
| |
| /* Content-type needs an additional handling */ |
| if (strcasecmp(stringname, "Content-Type") == 0) { |
| /* add corresponding filter */ |
| ap_set_content_type(r, apr_pstrdup(r->pool, value)); |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_unmarshal_response: ap_set_content_type done"); |
| } |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| /* |
| * Build the ajp header message and send it |
| */ |
| apr_status_t ajp_send_header(apr_socket_t *sock, |
| request_rec *r, |
| apr_size_t buffsize, |
| apr_uri_t *uri) |
| { |
| ajp_msg_t *msg; |
| apr_status_t rc; |
| |
| rc = ajp_msg_create(r->pool, buffsize, &msg); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_send_header: ajp_msg_create failed"); |
| return rc; |
| } |
| |
| rc = ajp_marshal_into_msgb(msg, r, uri); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_send_header: ajp_marshal_into_msgb failed"); |
| return rc; |
| } |
| |
| rc = ajp_ilink_send(sock, msg); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_send_header: ajp_ilink_send failed"); |
| return rc; |
| } |
| |
| return APR_SUCCESS; |
| } |
| |
| /* |
| * Read the ajp message and return the type of the message. |
| */ |
| apr_status_t ajp_read_header(apr_socket_t *sock, |
| request_rec *r, |
| apr_size_t buffsize, |
| ajp_msg_t **msg) |
| { |
| apr_byte_t result; |
| apr_status_t rc; |
| |
| if (*msg) { |
| rc = ajp_msg_reuse(*msg); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_read_header: ajp_msg_reuse failed"); |
| return rc; |
| } |
| } |
| else { |
| rc = ajp_msg_create(r->pool, buffsize, msg); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_read_header: ajp_msg_create failed"); |
| return rc; |
| } |
| } |
| ajp_msg_reset(*msg); |
| rc = ajp_ilink_receive(sock, *msg); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_read_header: ajp_ilink_receive failed"); |
| return rc; |
| } |
| rc = ajp_msg_peek_uint8(*msg, &result); |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_read_header: ajp_ilink_received %02x", result); |
| return APR_SUCCESS; |
| } |
| |
| /* parse the msg to read the type */ |
| int ajp_parse_type(request_rec *r, ajp_msg_t *msg) |
| { |
| apr_byte_t result; |
| ajp_msg_peek_uint8(msg, &result); |
| ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, |
| "ajp_parse_type: got %02x", result); |
| return (int) result; |
| } |
| |
| /* parse the header */ |
| apr_status_t ajp_parse_header(request_rec *r, proxy_dir_conf *conf, |
| ajp_msg_t *msg) |
| { |
| apr_byte_t result; |
| apr_status_t rc; |
| |
| rc = ajp_msg_get_uint8(msg, &result); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_parse_headers: ajp_msg_get_byte failed"); |
| return rc; |
| } |
| if (result != CMD_AJP13_SEND_HEADERS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_parse_headers: wrong type %02x expecting 0x04", result); |
| return AJP_EBAD_HEADER; |
| } |
| return ajp_unmarshal_response(msg, r, conf); |
| } |
| |
| /* parse the body and return data address and length */ |
| apr_status_t ajp_parse_data(request_rec *r, ajp_msg_t *msg, |
| apr_uint16_t *len, char **ptr) |
| { |
| apr_byte_t result; |
| apr_status_t rc; |
| apr_uint16_t expected_len; |
| |
| rc = ajp_msg_get_uint8(msg, &result); |
| if (rc != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_parse_data: ajp_msg_get_byte failed"); |
| return rc; |
| } |
| if (result != CMD_AJP13_SEND_BODY_CHUNK) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_parse_data: wrong type %02x expecting 0x03", result); |
| return AJP_EBAD_HEADER; |
| } |
| rc = ajp_msg_get_uint16(msg, len); |
| if (rc != APR_SUCCESS) { |
| return rc; |
| } |
| /* |
| * msg->len contains the complete length of the message including all |
| * headers. So the expected length for a CMD_AJP13_SEND_BODY_CHUNK is |
| * msg->len minus the sum of |
| * AJP_HEADER_LEN : The length of the header to every AJP message. |
| * AJP_HEADER_SZ_LEN : The header giving the size of the chunk. |
| * 1 : The CMD_AJP13_SEND_BODY_CHUNK indicator byte (0x03). |
| * 1 : The last byte of this message always seems to be |
| * 0x00 and is not part of the chunk. |
| */ |
| expected_len = msg->len - (AJP_HEADER_LEN + AJP_HEADER_SZ_LEN + 1 + 1); |
| if (*len != expected_len) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, |
| "ajp_parse_data: Wrong chunk length. Length of chunk is %i," |
| " expected length is %i.", *len, expected_len); |
| return AJP_EBAD_HEADER; |
| } |
| *ptr = (char *)&(msg->buf[msg->pos]); |
| return APR_SUCCESS; |
| } |
| |
| /* |
| * Allocate a msg to send data |
| */ |
| apr_status_t ajp_alloc_data_msg(apr_pool_t *pool, char **ptr, apr_size_t *len, |
| ajp_msg_t **msg) |
| { |
| apr_status_t rc; |
| |
| if ((rc = ajp_msg_create(pool, *len, msg)) != APR_SUCCESS) |
| return rc; |
| ajp_msg_reset(*msg); |
| *ptr = (char *)&((*msg)->buf[6]); |
| *len = *len - 6; |
| |
| return APR_SUCCESS; |
| } |
| |
| /* |
| * Send the data message |
| */ |
| apr_status_t ajp_send_data_msg(apr_socket_t *sock, |
| ajp_msg_t *msg, apr_size_t len) |
| { |
| |
| msg->buf[4] = (apr_byte_t)((len >> 8) & 0xFF); |
| msg->buf[5] = (apr_byte_t)(len & 0xFF); |
| |
| msg->len += len + 2; /* + 1 XXXX where is '\0' */ |
| |
| return ajp_ilink_send(sock, msg); |
| |
| } |
