Merged with the default branch.1.30.0-1

1 files changed, 0 insertions, 750 deletions

diff --git a/src/nxt_fastcgi_source.c b/src/nxt_fastcgi_source.c
deleted file mode 100644
index b2424292..00000000
--- a/src/nxt_fastcgi_source.c
+++ /dev/null
@@ -1,750 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) NGINX, Inc.
- */
-
-#include <nxt_main.h>
-
-
-#define NXT_FASTCGI_RESPONDER  1
-#define NXT_FASTCGI_KEEP_CONN  1
-
-
-typedef struct {
-    u_char    *buf;
-    uint32_t  len;
-    u_char    length[4];
-} nxt_fastcgi_param_t;
-
-
-#define nxt_fastcgi_set_record_length(p, length)                              \
-    do {                                                                      \
-        uint32_t  len = length;                                               \
-                                                                              \
-        p[1] = (u_char) len;  len >>= 8;                                      \
-        p[0] = (u_char) len;                                                  \
-    } while (0)
-
-
-nxt_inline size_t
-nxt_fastcgi_param_length(u_char *p, uint32_t length)
-{
-    if (nxt_fast_path(length < 128)) {
-        *p = (u_char) length;
-        return 1;
-    }
-
-    p[3] = (u_char) length;  length >>= 8;
-    p[2] = (u_char) length;  length >>= 8;
-    p[1] = (u_char) length;  length >>= 8;
-    p[0] = (u_char) (length | 0x80);
-
-    return 4;
-}
-
-
-static nxt_buf_t *nxt_fastcgi_request_create(nxt_fastcgi_source_t *fs);
-static nxt_int_t nxt_fastcgi_next_param(nxt_fastcgi_source_t *fs,
-    nxt_fastcgi_param_t *param);
-
-static void nxt_fastcgi_source_record_filter(nxt_task_t *task, void *obj,
-    void *data);
-static void nxt_fastcgi_source_record_error(nxt_task_t *task, void *obj,
-    void *data);
-static void nxt_fastcgi_source_header_filter(nxt_task_t *task, void *obj,
-    void *data);
-static void nxt_fastcgi_source_sync_buffer(nxt_task_t *task,
-    nxt_fastcgi_source_t *fs, nxt_buf_t *b);
-
-static nxt_int_t nxt_fastcgi_source_header_process(nxt_task_t *task,
-    nxt_fastcgi_source_t *fs);
-static nxt_int_t nxt_fastcgi_source_status(nxt_upstream_source_t *us,
-    nxt_name_value_t *nv);
-static nxt_int_t nxt_fastcgi_source_content_length(nxt_upstream_source_t *us,
-    nxt_name_value_t *nv);
-
-static void nxt_fastcgi_source_header_ready(nxt_fastcgi_source_t *fs,
-    nxt_buf_t *b);
-static void nxt_fastcgi_source_body_filter(nxt_task_t *task, void *obj,
-    void *data);
-static nxt_buf_t *nxt_fastcgi_source_last_buf(nxt_fastcgi_parse_t *fp);
-static void nxt_fastcgi_source_error(nxt_task_t *task,
-    nxt_stream_source_t *stream);
-static void nxt_fastcgi_source_fail(nxt_task_t *task, nxt_fastcgi_source_t *fs);
-
-
-/*
- * A FastCGI request:
- *   FCGI_BEGIN_REQUEST record;
- *   Several FCGI_PARAMS records, the last FCGI_PARAMS record must have
- *   zero content length,
- *   Several FCGI_STDIN records, the last FCGI_STDIN record must have
- *   zero content length.
- */
-
-static const uint8_t  nxt_fastcgi_begin_request[] = {
-    1,                                 /* FastCGI version.                   */
-    NXT_FASTCGI_BEGIN_REQUEST,         /* The BEGIN_REQUEST record type.     */
-    0, 1,                              /* Request ID.                        */
-    0, 8,                              /* Content length of the Role record. */
-    0,                                 /* Padding length.                    */
-    0,                                 /* Reserved.                          */
-
-    0, NXT_FASTCGI_RESPONDER,          /* The Responder Role.                */
-    0,                                 /* Flags.                             */
-    0, 0, 0, 0, 0,                     /* Reserved.                          */
-};
-
-
-static const uint8_t  nxt_fastcgi_params_record[] = {
-    1,                                 /* FastCGI version.                   */
-    NXT_FASTCGI_PARAMS,                /* The PARAMS record type.            */
-    0, 1,                              /* Request ID.                        */
-    0, 0,                              /* Content length.                    */
-    0,                                 /* Padding length.                    */
-    0,                                 /* Reserved.                          */
-};
-
-
-static const uint8_t  nxt_fastcgi_stdin_record[] = {
-    1,                                 /* FastCGI version.                   */
-    NXT_FASTCGI_STDIN,                 /* The STDIN record type.             */
-    0, 1,                              /* Request ID.                        */
-    0, 0,                              /* Content length.                    */
-    0,                                 /* Padding length.                    */
-    0,                                 /* Reserved.                          */
-};
-
-
-void
-nxt_fastcgi_source_handler(nxt_task_t *task, nxt_upstream_source_t *us,
-    nxt_fastcgi_source_request_create_t request_create)
-{
-    nxt_stream_source_t   *stream;
-    nxt_fastcgi_source_t  *fs;
-
-    fs = nxt_mp_zget(us->buffers.mem_pool, sizeof(nxt_fastcgi_source_t));
-    if (nxt_slow_path(fs == NULL)) {
-        goto fail;
-    }
-
-    us->protocol_source = fs;
-
-    fs->header_in.list = nxt_list_create(us->buffers.mem_pool, 8,
-                                         sizeof(nxt_name_value_t));
-    if (nxt_slow_path(fs->header_in.list == NULL)) {
-        goto fail;
-    }
-
-    fs->header_in.hash = us->header_hash;
-    fs->upstream = us;
-    fs->request_create = request_create;
-
-    stream = us->stream;
-
-    if (stream == NULL) {
-        stream = nxt_mp_zget(us->buffers.mem_pool, sizeof(nxt_stream_source_t));
-        if (nxt_slow_path(stream == NULL)) {
-            goto fail;
-        }
-
-        us->stream = stream;
-        stream->upstream = us;
-
-    } else {
-        nxt_memzero(stream, sizeof(nxt_stream_source_t));
-    }
-
-    /*
-     * Create the FastCGI source filter chain:
-     *   stream source | FastCGI record filter | FastCGI HTTP header filter
-     */
-    stream->next = &fs->query;
-    stream->error_handler = nxt_fastcgi_source_error;
-
-    fs->record.next.context = fs;
-    fs->record.next.filter = nxt_fastcgi_source_header_filter;
-
-    fs->record.parse.last_buf = nxt_fastcgi_source_last_buf;
-    fs->record.parse.data = fs;
-    fs->record.parse.mem_pool = us->buffers.mem_pool;
-
-    fs->query.context = &fs->record.parse;
-    fs->query.filter = nxt_fastcgi_source_record_filter;
-
-    fs->header_in.content_length = -1;
-
-    stream->out = nxt_fastcgi_request_create(fs);
-
-    if (nxt_fast_path(stream->out != NULL)) {
-        nxt_memzero(&fs->u.header, sizeof(nxt_http_split_header_parse_t));
-        fs->u.header.mem_pool = fs->upstream->buffers.mem_pool;
-
-        nxt_stream_source_connect(task, stream);
-        return;
-    }
-
-fail:
-
-    nxt_fastcgi_source_fail(task, fs);
-}
-
-
-static nxt_buf_t *
-nxt_fastcgi_request_create(nxt_fastcgi_source_t *fs)
-{
-    u_char               *p, *record_length;
-    size_t               len, size, max_record_size;
-    nxt_int_t            ret;
-    nxt_buf_t            *b, *req, **prev;
-    nxt_bool_t           begin_request;
-    nxt_fastcgi_param_t  param;
-
-    nxt_thread_log_debug("fastcgi request");
-
-    begin_request = 1;
-    param.len = 0;
-    prev = &req;
-
-new_buffer:
-
-    ret = nxt_buf_pool_mem_alloc(&fs->upstream->buffers, 0);
-    if (nxt_slow_path(ret != NXT_OK)) {
-        return NULL;
-    }
-
-    b = fs->upstream->buffers.current;
-    fs->upstream->buffers.current = NULL;
-
-    *prev = b;
-    prev = &b->next;
-
-new_record:
-
-    size = b->mem.end - b->mem.free;
-    size = nxt_align_size(size, 8) - 8;
-    /* The maximal FastCGI record content size is 65535.  65528 is 64K - 8. */
-    max_record_size = nxt_min(65528, size);
-
-    p = b->mem.free;
-
-    if (begin_request) {
-        /* TODO: fastcgi keep conn in flags. */
-        p = nxt_cpymem(p, nxt_fastcgi_begin_request, 16);
-        max_record_size -= 16;
-        begin_request = 0;
-    }
-
-    b->mem.free = nxt_cpymem(p, nxt_fastcgi_params_record, 8);
-    record_length = &p[4];
-    size = 0;
-
-    for ( ;; ) {
-        if (param.len == 0) {
-            ret = nxt_fastcgi_next_param(fs, &param);
-
-            if (nxt_slow_path(ret != NXT_OK)) {
-
-                if (nxt_slow_path(ret == NXT_ERROR)) {
-                    return NULL;
-                }
-
-                /* ret == NXT_DONE */
-                break;
-            }
-        }
-
-        len = max_record_size;
-
-        if (nxt_fast_path(len >= param.len)) {
-            len = param.len;
-            param.len = 0;
-
-        } else {
-            param.len -= len;
-        }
-
-        nxt_thread_log_debug("fastcgi copy len:%uz", len);
-
-        b->mem.free = nxt_cpymem(b->mem.free, param.buf, len);
-
-        size += len;
-        max_record_size -= len;
-
-        if (nxt_slow_path(param.len != 0)) {
-            /* The record is full. */
-
-            param.buf += len;
-
-            nxt_thread_log_debug("fastcgi content size:%uz", size);
-
-            nxt_fastcgi_set_record_length(record_length, size);
-
-            /* The minimal size of aligned record with content is 16 bytes. */
-            if (b->mem.end - b->mem.free >= 16) {
-                goto new_record;
-            }
-
-            nxt_thread_log_debug("\"%*s\"", b->mem.free - b->mem.pos,
-                                 b->mem.pos);
-            goto new_buffer;
-        }
-    }
-
-    nxt_thread_log_debug("fastcgi content size:%uz", size);
-
-    nxt_fastcgi_set_record_length(record_length, size);
-
-    /* A padding length. */
-    size = 8 - size % 8;
-    record_length[2] = (u_char) size;
-    nxt_memzero(b->mem.free, size);
-    b->mem.free += size;
-
-    nxt_thread_log_debug("fastcgi padding:%uz", size);
-
-    if (b->mem.end - b->mem.free < 16) {
-        nxt_thread_log_debug("\"%*s\"", b->mem.free - b->mem.pos, b->mem.pos);
-
-        b = nxt_buf_mem_alloc(fs->upstream->buffers.mem_pool, 16, 0);
-        if (nxt_slow_path(b == NULL)) {
-            return NULL;
-        }
-
-        *prev = b;
-        prev = &b->next;
-    }
-
-    /* The end of FastCGI params. */
-    p = nxt_cpymem(b->mem.free, nxt_fastcgi_params_record, 8);
-
-    /* The end of FastCGI stdin. */
-    b->mem.free = nxt_cpymem(p, nxt_fastcgi_stdin_record, 8);
-
-    nxt_thread_log_debug("\"%*s\"", b->mem.free - b->mem.pos, b->mem.pos);
-
-    return req;
-}
-
-
-static nxt_int_t
-nxt_fastcgi_next_param(nxt_fastcgi_source_t *fs, nxt_fastcgi_param_t *param)
-{
-    nxt_int_t  ret;
-
-    enum {
-        sw_name_length = 0,
-        sw_value_length,
-        sw_name,
-        sw_value,
-    };
-
-    switch (fs->state) {
-
-    case sw_name_length:
-        ret = fs->request_create(fs);
-
-        if (nxt_slow_path(ret != NXT_OK)) {
-            return ret;
-        }
-
-        nxt_thread_log_debug("fastcgi param \"%V: %V\"",
-                             &fs->u.request.name, &fs->u.request.value);
-
-        fs->state = sw_value_length;
-        param->buf = param->length;
-        param->len = nxt_fastcgi_param_length(param->length,
-                                              fs->u.request.name.len);
-        break;
-
-    case sw_value_length:
-        fs->state = sw_name;
-        param->buf = param->length;
-        param->len = nxt_fastcgi_param_length(param->length,
-                                              fs->u.request.value.len);
-        break;
-
-    case sw_name:
-        fs->state = sw_value;
-        param->buf = fs->u.request.name.data;
-        param->len = fs->u.request.name.len;
-        break;
-
-    case sw_value:
-        fs->state = sw_name_length;
-        param->buf = fs->u.request.value.data;
-        param->len = fs->u.request.value.len;
-        break;
-    }
-
-    return NXT_OK;
-}
-
-
-static void
-nxt_fastcgi_source_record_filter(nxt_task_t *task, void *obj, void *data)
-{
-    size_t                       size;
-    u_char                       *p;
-    nxt_buf_t                    *b, *in;
-    nxt_fastcgi_source_t         *fs;
-    nxt_fastcgi_source_record_t  *fsr;
-
-    fsr = obj;
-    in = data;
-
-    nxt_debug(task, "fastcgi source record filter");
-
-    if (nxt_slow_path(fsr->parse.done)) {
-        return;
-    }
-
-    nxt_fastcgi_record_parse(task, &fsr->parse, in);
-
-    fs = nxt_container_of(fsr, nxt_fastcgi_source_t, record);
-
-    if (fsr->parse.error) {
-        nxt_fastcgi_source_fail(task, fs);
-        return;
-    }
-
-    if (fsr->parse.fastcgi_error) {
-        /*
-         * Output all parsed before a FastCGI record error and close upstream.
-         */
-        nxt_thread_current_work_queue_add(task->thread,
-                                          nxt_fastcgi_source_record_error,
-                                          task, fs, NULL);
-    }
-
-    /* Log FastCGI stderr output. */
-
-    for (b = fsr->parse.out[1]; b != NULL; b = b->next) {
-
-        for (p = b->mem.free - 1; p >= b->mem.pos; p--) {
-            if (*p != '\r' && *p != '\n') {
-                break;
-            }
-        }
-
-        size = (p + 1) - b->mem.pos;
-
-        if (size != 0) {
-            nxt_log(task, NXT_LOG_ERR,
-                    "upstream sent in FastCGI stderr: \"%*s\"",
-                    size, b->mem.pos);
-        }
-
-        b->completion_handler(task, b, b->parent);
-    }
-
-    /* Process FastCGI stdout output. */
-
-    if (fsr->parse.out[0] != NULL) {
-        nxt_source_filter(task->thread, fs->upstream->work_queue, task,
-                          &fsr->next, fsr->parse.out[0]);
-    }
-}
-
-
-static void
-nxt_fastcgi_source_record_error(nxt_task_t *task, void *obj, void *data)
-{
-    nxt_fastcgi_source_t  *fs;
-
-    fs = obj;
-
-    nxt_fastcgi_source_fail(task, fs);
-}
-
-
-static void
-nxt_fastcgi_source_header_filter(nxt_task_t *task, void *obj, void *data)
-{
-    nxt_int_t             ret;
-    nxt_buf_t             *b;
-    nxt_fastcgi_source_t  *fs;
-
-    fs = obj;
-    b = data;
-
-    do {
-        nxt_debug(task, "fastcgi source header filter");
-
-        if (nxt_slow_path(nxt_buf_is_sync(b))) {
-            nxt_fastcgi_source_sync_buffer(task, fs, b);
-            return;
-        }
-
-        for ( ;; ) {
-            ret = nxt_http_split_header_parse(&fs->u.header, &b->mem);
-
-            if (nxt_slow_path(ret != NXT_OK)) {
-                break;
-            }
-
-            ret = nxt_fastcgi_source_header_process(task, fs);
-
-            if (nxt_slow_path(ret != NXT_OK)) {
-                break;
-            }
-        }
-
-        if (nxt_fast_path(ret == NXT_DONE)) {
-            nxt_debug(task, "fastcgi source header done");
-            nxt_fastcgi_source_header_ready(fs, b);
-            return;
-        }
-
-        if (nxt_fast_path(ret != NXT_AGAIN)) {
-
-            if (ret != NXT_ERROR) {
-                /* n == NXT_DECLINED: "\r" is not followed by "\n" */
-                nxt_log(task, NXT_LOG_ERR,
-                        "upstream sent invalid header line: \"%*s\\r...\"",
-                        fs->u.header.parse.header_end
-                            - fs->u.header.parse.header_name_start,
-                        fs->u.header.parse.header_name_start);
-            }
-
-            /* ret == NXT_ERROR */
-
-            nxt_fastcgi_source_fail(task, fs);
-            return;
-        }
-
-        b = b->next;
-
-    } while (b != NULL);
-}
-
-
-static void
-nxt_fastcgi_source_sync_buffer(nxt_task_t *task, nxt_fastcgi_source_t *fs,
-    nxt_buf_t *b)
-{
-    if (nxt_buf_is_last(b)) {
-        nxt_log(task, NXT_LOG_ERR, "upstream closed prematurely connection");
-
-    } else {
-        nxt_log(task, NXT_LOG_ERR, "%ui buffers %uz each are not "
-                "enough to process upstream response header",
-                fs->upstream->buffers.max, fs->upstream->buffers.size);
-    }
-
-    /* The stream source sends only the last and the nobuf sync buffer. */
-
-    nxt_fastcgi_source_fail(task, fs);
-}
-
-
-static nxt_int_t
-nxt_fastcgi_source_header_process(nxt_task_t *task, nxt_fastcgi_source_t *fs)
-{
-    size_t                     len;
-    nxt_name_value_t           *nv;
-    nxt_lvlhsh_query_t         lhq;
-    nxt_http_header_parse_t    *hp;
-    nxt_upstream_name_value_t  *unv;
-
-    hp = &fs->u.header.parse;
-
-    len = hp->header_name_end - hp->header_name_start;
-
-    if (len > 255) {
-        nxt_log(task, NXT_LOG_INFO,
-                "upstream sent too long header field name: \"%*s\"",
-                len, hp->header_name_start);
-        return NXT_ERROR;
-    }
-
-    nv = nxt_list_add(fs->header_in.list);
-    if (nxt_slow_path(nv == NULL)) {
-        return NXT_ERROR;
-    }
-
-    nv->hash = hp->header_hash;
-    nv->skip = 0;
-    nv->name_len = len;
-    nv->name_start = hp->header_name_start;
-    nv->value_len = hp->header_end - hp->header_start;
-    nv->value_start = hp->header_start;
-
-    nxt_debug(task, "http header: \"%*s: %*s\"",
-              nv->name_len, nv->name_start, nv->value_len, nv->value_start);
-
-    lhq.key_hash = nv->hash;
-    lhq.key.len = nv->name_len;
-    lhq.key.data = nv->name_start;
-    lhq.proto = &nxt_upstream_header_hash_proto;
-
-    if (nxt_lvlhsh_find(&fs->header_in.hash, &lhq) == NXT_OK) {
-        unv = lhq.value;
-
-        if (unv->handler(fs->upstream, nv) == NXT_OK) {
-            return NXT_ERROR;
-        }
-    }
-
-    return NXT_OK;
-}
-
-
-static const nxt_upstream_name_value_t  nxt_fastcgi_source_headers[]
-    nxt_aligned(32) =
-{
-    { nxt_fastcgi_source_status,
-      nxt_upstream_name_value("status") },
-
-    { nxt_fastcgi_source_content_length,
-      nxt_upstream_name_value("content-length") },
-};
-
-
-nxt_int_t
-nxt_fastcgi_source_hash_create(nxt_mp_t *mp, nxt_lvlhsh_t *lh)
-{
-    return nxt_upstream_header_hash_add(mp, lh, nxt_fastcgi_source_headers,
-                                        nxt_nitems(nxt_fastcgi_source_headers));
-}
-
-
-static nxt_int_t
-nxt_fastcgi_source_status(nxt_upstream_source_t *us, nxt_name_value_t *nv)
-{
-    nxt_int_t             n;
-    nxt_str_t             s;
-    nxt_fastcgi_source_t  *fs;
-
-    s.len = nv->value_len;
-    s.data = nv->value_start;
-
-    n = nxt_str_int_parse(&s);
-
-    if (nxt_fast_path(n > 0)) {
-        fs = us->protocol_source;
-        fs->header_in.status = n;
-        return NXT_OK;
-    }
-
-    return NXT_ERROR;
-}
-
-
-static nxt_int_t
-nxt_fastcgi_source_content_length(nxt_upstream_source_t *us,
-    nxt_name_value_t *nv)
-{
-    nxt_off_t             length;
-    nxt_fastcgi_source_t  *fs;
-
-    length = nxt_off_t_parse(nv->value_start, nv->value_len);
-
-    if (nxt_fast_path(length > 0)) {
-        fs = us->protocol_source;
-        fs->header_in.content_length = length;
-        return NXT_OK;
-    }
-
-    return NXT_ERROR;
-}
-
-
-static void
-nxt_fastcgi_source_header_ready(nxt_fastcgi_source_t *fs, nxt_buf_t *b)
-{
-    /*
-     * Change the FastCGI source filter chain:
-     *   stream source | FastCGI record filter | FastCGI body filter
-     */
-    fs->record.next.filter = nxt_fastcgi_source_body_filter;
-
-    if (nxt_buf_mem_used_size(&b->mem) != 0) {
-        fs->rest = b;
-    }
-
-    if (fs->header_in.status == 0) {
-        /* The "200 OK" status by default. */
-        fs->header_in.status = 200;
-    }
-
-    fs->upstream->state->ready_handler(fs);
-}
-
-
-/*
- * The FastCGI source body filter accumulates first body buffers before the next
- * filter will be established and sets completion handler for the last buffer.
- */
-
-static void
-nxt_fastcgi_source_body_filter(nxt_task_t *task, void *obj, void *data)
-{
-    nxt_buf_t             *b, *in;
-    nxt_fastcgi_source_t  *fs;
-
-    fs = obj;
-    in = data;
-
-    nxt_debug(task, "fastcgi source body filter");
-
-    for (b = in; b != NULL; b = b->next) {
-
-        if (nxt_buf_is_last(b)) {
-            b->data = fs->upstream->data;
-            b->completion_handler = fs->upstream->state->completion_handler;
-        }
-    }
-
-    if (fs->next != NULL) {
-        nxt_source_filter(task->thread, fs->upstream->work_queue, task,
-                          fs->next, in);
-        return;
-    }
-
-    nxt_buf_chain_add(&fs->rest, in);
-}
-
-
-static nxt_buf_t *
-nxt_fastcgi_source_last_buf(nxt_fastcgi_parse_t *fp)
-{
-    nxt_buf_t             *b;
-    nxt_fastcgi_source_t  *fs;
-
-    fs = fp->data;
-
-    b = nxt_buf_sync_alloc(fp->mem_pool, NXT_BUF_SYNC_LAST);
-
-    if (nxt_fast_path(b != NULL)) {
-        b->data = fs->upstream->data;
-        b->completion_handler = fs->upstream->state->completion_handler;
-    }
-
-    return b;
-}
-
-
-static void
-nxt_fastcgi_source_error(nxt_task_t *task, nxt_stream_source_t *stream)
-{
-    nxt_fastcgi_source_t  *fs;
-
-    nxt_thread_log_debug("fastcgi source error");
-
-    fs = stream->upstream->protocol_source;
-
-    nxt_fastcgi_source_fail(task, fs);
-}
-
-
-static void
-nxt_fastcgi_source_fail(nxt_task_t *task, nxt_fastcgi_source_t *fs)
-{
-    nxt_debug(task, "fastcgi source fail");
-
-    /* TODO: fail, next upstream, or bad gateway */
-
-    fs->upstream->state->error_handler(task, fs, NULL);
-}