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openSUSE:Leap:42.1
apache2-mod_fastcgi
0001-handle-expect-100-continue-differen.patch
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File 0001-handle-expect-100-continue-differen.patch of Package apache2-mod_fastcgi
From: Yehuda Sadeh <yehuda@hq.newdream.net> Date: Fri, 25 Feb 2011 11:09:19 -0800 Subject: [PATCH] handle expect-100-continue differently When expecting a 100-continue, wait for the application to return that status before trying to read the data. That won't trigger the apache early response. --- fcgi.h | 3 ++- fcgi_protocol.c | 15 ++++++++++++++- mod_fastcgi.c | 25 +++++++++++++++++++++---- 3 files changed, 37 insertions(+), 6 deletions(-) diff --git a/fcgi.h b/fcgi.h index 1f3111c..0aebc16 100644 --- a/fcgi.h +++ b/fcgi.h @@ -294,6 +294,7 @@ typedef struct { char *fs_stderr; int fs_stderr_len; int parseHeader; /* TRUE iff parsing response headers */ + int gotCont; request_rec *r; int readingEndRequestBody; FCGI_EndRequestBody endRequestBody; @@ -498,7 +499,7 @@ int fcgi_pm_main(void *dummy, child_info *info); */ void fcgi_protocol_queue_begin_request(fcgi_request *fr); void fcgi_protocol_queue_client_buffer(fcgi_request *fr); -int fcgi_protocol_queue_env(request_rec *r, fcgi_request *fr, env_status *env); +int fcgi_protocol_queue_env(request_rec *r, fcgi_request *fr, env_status *env, int *expect_cont); int fcgi_protocol_dequeue(pool *p, fcgi_request *fr); /* diff --git a/fcgi_protocol.c b/fcgi_protocol.c index 55da311..f80c5a5 100644 --- a/fcgi_protocol.c +++ b/fcgi_protocol.c @@ -221,9 +221,11 @@ static void add_pass_header_vars(fcgi_request *fr) * complete ENV was buffered, FALSE otherwise. Note: envp is updated to * reflect the current position in the ENV. */ -int fcgi_protocol_queue_env(request_rec *r, fcgi_request *fr, env_status *env) +int fcgi_protocol_queue_env(request_rec *r, fcgi_request *fr, env_status *env, + int *expect_cont) { int charCount; + const char *name, *val; if (env->envp == NULL) { ap_add_common_vars(r); @@ -237,15 +239,26 @@ int fcgi_protocol_queue_env(request_rec *r, fcgi_request *fr, env_status *env) env->envp = ap_create_environment(r->pool, r->subprocess_env); env->pass = PREP; } + *expect_cont = 0; while (*env->envp) { + ap_log_error(FCGI_LOG_WARN_NOERRNO, fcgi_apache_main_server, + "FastCGI: JJJ envp=%s", *env->envp); switch (env->pass) { case PREP: env->equalPtr = strchr(*env->envp, '='); ASSERT(env->equalPtr != NULL); + name = *env->envp; + val = env->equalPtr + 1; env->nameLen = env->equalPtr - *env->envp; env->valueLen = strlen(++env->equalPtr); + ap_log_error(FCGI_LOG_WARN_NOERRNO, fcgi_apache_main_server, + "FastCGI: JJJ name='%.*s' val='%.*s'", env->nameLen, *env->envp, env->valueLen, val); + if (val && env->nameLen == sizeof("HTTP_EXPECT") - 1 && + strncasecmp(name, "HTTP_EXPECT", env->nameLen) == 0 && + strncasecmp(val, "100-continue", env->valueLen) == 0) + *expect_cont = 1; build_env_header(env->nameLen, env->valueLen, env->headerBuff, &env->headerLen); env->totalLen = env->headerLen + env->nameLen + env->valueLen; env->pass = HEADER; diff --git a/mod_fastcgi.c b/mod_fastcgi.c index 67a70aa..e3c1e48 100644 --- a/mod_fastcgi.c +++ b/mod_fastcgi.c @@ -646,7 +646,7 @@ static void close_connection_to_fs(fcgi_request *fr) static const char *process_headers(request_rec *r, fcgi_request *fr) { char *p, *next, *name, *value; - int len, flag; + int len, flag, newl; int hasLocation = FALSE; ASSERT(fr->parseHeader == SCAN_CGI_READING_HEADERS); @@ -661,11 +661,18 @@ static const char *process_headers(request_rec *r, fcgi_request *fr) p = (char *)fr->header->elts; len = fr->header->nelts; flag = 0; + newl = 1; while(len-- && flag < 2) { - switch(*p) { + if (newl && !fr->gotCont && strncasecmp(p, "Status: 100", 11) == 0) { + fr->gotCont = 1; + ap_log_error(FCGI_LOG_WARN_NOERRNO, fcgi_apache_main_server, + "FastCGI: JJJ gotCont=1"); + } + switch(*p) { case '\r': break; case '\n': + newl = 1; flag++; break; case '\0': @@ -674,6 +681,7 @@ static const char *process_headers(request_rec *r, fcgi_request *fr) name = "Invalid Character"; goto BadHeader; default: + newl = 0; flag = 0; break; } @@ -1597,6 +1605,7 @@ static int npipe_io(fcgi_request * const fr) pool * const rp = r->pool; int is_connected = 0; DWORD recv_count = 0; + int expect_cont = 0; dynamic_last_io_time.tv_sec = 0; dynamic_last_io_time.tv_usec = 0; @@ -1637,7 +1646,7 @@ static int npipe_io(fcgi_request * const fr) { case STATE_ENV_SEND: - if (fcgi_protocol_queue_env(r, fr, &env_status) == 0) + if (fcgi_protocol_queue_env(r, fr, &env_status, &expect_cont) == 0) { goto SERVER_SEND; } @@ -2010,6 +2019,7 @@ static int socket_io(fcgi_request * const fr) env_status env; pool *rp = r->pool; int is_connected = 0; + int expect_cont = 0; dynamic_last_io_time.tv_sec = 0; dynamic_last_io_time.tv_usec = 0; @@ -2046,7 +2056,7 @@ static int socket_io(fcgi_request * const fr) { case STATE_ENV_SEND: - if (fcgi_protocol_queue_env(r, fr, &env) == 0) + if (fcgi_protocol_queue_env(r, fr, &env, &expect_cont) == 0) { goto SERVER_SEND; } @@ -2056,6 +2066,9 @@ static int socket_io(fcgi_request * const fr) /* fall through */ case STATE_CLIENT_RECV: + if (expect_cont && !fr->gotCont) { + goto SERVER_SEND; + } if (read_from_client_n_queue(fr)) { @@ -2328,6 +2341,10 @@ SERVER_SEND: state = STATE_ERROR; break; } + if (expect_cont && fr->gotCont) { + state = STATE_CLIENT_RECV; + continue; + } } if (fr->exitStatusSet)
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