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Diffstat (limited to 'src/http/v3/ngx_http_v3_request.c')
-rw-r--r--src/http/v3/ngx_http_v3_request.c415
1 files changed, 415 insertions, 0 deletions
diff --git a/src/http/v3/ngx_http_v3_request.c b/src/http/v3/ngx_http_v3_request.c
new file mode 100644
index 000000000..2b50133f1
--- /dev/null
+++ b/src/http/v3/ngx_http_v3_request.c
@@ -0,0 +1,415 @@
+
+/*
+ * Copyright (C) Roman Arutyunyan
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+
+
+static ngx_int_t ngx_http_v3_process_pseudo_header(ngx_http_request_t *r,
+ ngx_str_t *name, ngx_str_t *value);
+
+
+struct {
+ ngx_str_t name;
+ ngx_uint_t method;
+} ngx_http_v3_methods[] = {
+
+ { ngx_string("GET"), NGX_HTTP_GET },
+ { ngx_string("POST"), NGX_HTTP_POST },
+ { ngx_string("HEAD"), NGX_HTTP_HEAD },
+ { ngx_string("OPTIONS"), NGX_HTTP_OPTIONS },
+ { ngx_string("PROPFIND"), NGX_HTTP_PROPFIND },
+ { ngx_string("PUT"), NGX_HTTP_PUT },
+ { ngx_string("MKCOL"), NGX_HTTP_MKCOL },
+ { ngx_string("DELETE"), NGX_HTTP_DELETE },
+ { ngx_string("COPY"), NGX_HTTP_COPY },
+ { ngx_string("MOVE"), NGX_HTTP_MOVE },
+ { ngx_string("PROPPATCH"), NGX_HTTP_PROPPATCH },
+ { ngx_string("LOCK"), NGX_HTTP_LOCK },
+ { ngx_string("UNLOCK"), NGX_HTTP_UNLOCK },
+ { ngx_string("PATCH"), NGX_HTTP_PATCH },
+ { ngx_string("TRACE"), NGX_HTTP_TRACE }
+};
+
+
+ngx_int_t
+ngx_http_v3_parse_request(ngx_http_request_t *r, ngx_buf_t *b)
+{
+ size_t len;
+ u_char *p;
+ ngx_int_t rc, n;
+ ngx_str_t *name, *value;
+ ngx_connection_t *c;
+ ngx_http_v3_parse_headers_t *st;
+
+ c = r->connection;
+ st = r->h3_parse;
+
+ if (st == NULL) {
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header");
+
+ st = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_parse_headers_t));
+ if (st == NULL) {
+ goto failed;
+ }
+
+ r->h3_parse = st;
+ r->parse_start = b->pos;
+ r->state = 1;
+ }
+
+ while (b->pos < b->last) {
+ rc = ngx_http_v3_parse_headers(c, st, *b->pos);
+
+ if (rc > 0) {
+ ngx_http_v3_finalize_connection(c, rc,
+ "could not parse request headers");
+ goto failed;
+ }
+
+ if (rc == NGX_ERROR) {
+ goto failed;
+ }
+
+ if (rc == NGX_BUSY) {
+ return NGX_BUSY;
+ }
+
+ b->pos++;
+
+ if (rc == NGX_AGAIN) {
+ continue;
+ }
+
+ name = &st->header_rep.header.name;
+ value = &st->header_rep.header.value;
+
+ n = ngx_http_v3_process_pseudo_header(r, name, value);
+
+ if (n == NGX_ERROR) {
+ goto failed;
+ }
+
+ if (n == NGX_OK && rc == NGX_OK) {
+ continue;
+ }
+
+ len = r->method_name.len + 1
+ + (r->uri_end - r->uri_start) + 1
+ + sizeof("HTTP/3.0") - 1;
+
+ p = ngx_pnalloc(c->pool, len);
+ if (p == NULL) {
+ goto failed;
+ }
+
+ r->request_start = p;
+
+ p = ngx_cpymem(p, r->method_name.data, r->method_name.len);
+ r->method_end = p - 1;
+ *p++ = ' ';
+ p = ngx_cpymem(p, r->uri_start, r->uri_end - r->uri_start);
+ *p++ = ' ';
+ r->http_protocol.data = p;
+ p = ngx_cpymem(p, "HTTP/3.0", sizeof("HTTP/3.0") - 1);
+
+ r->request_end = p;
+ r->state = 0;
+
+ return NGX_OK;
+ }
+
+ return NGX_AGAIN;
+
+failed:
+
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+}
+
+
+ngx_int_t
+ngx_http_v3_parse_header(ngx_http_request_t *r, ngx_buf_t *b,
+ ngx_uint_t allow_underscores)
+{
+ u_char ch;
+ ngx_int_t rc;
+ ngx_str_t *name, *value;
+ ngx_uint_t hash, i, n;
+ ngx_connection_t *c;
+ ngx_http_v3_parse_headers_t *st;
+ enum {
+ sw_start = 0,
+ sw_done,
+ sw_next,
+ sw_header
+ };
+
+ c = r->connection;
+ st = r->h3_parse;
+
+ switch (r->state) {
+
+ case sw_start:
+ r->parse_start = b->pos;
+
+ if (st->state) {
+ r->state = sw_next;
+ goto done;
+ }
+
+ name = &st->header_rep.header.name;
+
+ if (name->len && name->data[0] != ':') {
+ r->state = sw_done;
+ goto done;
+ }
+
+ /* fall through */
+
+ case sw_done:
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "http3 parse header done");
+ return NGX_HTTP_PARSE_HEADER_DONE;
+
+ case sw_next:
+ r->parse_start = b->pos;
+ r->invalid_header = 0;
+ break;
+
+ case sw_header:
+ break;
+ }
+
+ while (b->pos < b->last) {
+ rc = ngx_http_v3_parse_headers(c, st, *b->pos++);
+
+ if (rc > 0) {
+ ngx_http_v3_finalize_connection(c, rc,
+ "could not parse request headers");
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ if (rc == NGX_ERROR) {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ if (rc == NGX_DONE) {
+ r->state = sw_done;
+ goto done;
+ }
+
+ if (rc == NGX_OK) {
+ r->state = sw_next;
+ goto done;
+ }
+ }
+
+ r->state = sw_header;
+ return NGX_AGAIN;
+
+done:
+
+ name = &st->header_rep.header.name;
+ value = &st->header_rep.header.value;
+
+ r->header_name_start = name->data;
+ r->header_name_end = name->data + name->len;
+ r->header_start = value->data;
+ r->header_end = value->data + value->len;
+
+ hash = 0;
+ i = 0;
+
+ for (n = 0; n < name->len; n++) {
+ ch = name->data[n];
+
+ if (ch >= 'A' && ch <= 'Z') {
+ /*
+ * A request or response containing uppercase
+ * header field names MUST be treated as malformed
+ */
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ if (ch == '\0') {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ if (ch == '_' && !allow_underscores) {
+ r->invalid_header = 1;
+ continue;
+ }
+
+ if ((ch < 'a' || ch > 'z')
+ && (ch < '0' || ch > '9')
+ && ch != '-' && ch != '_')
+ {
+ r->invalid_header = 1;
+ continue;
+ }
+
+ hash = ngx_hash(hash, ch);
+ r->lowcase_header[i++] = ch;
+ i &= (NGX_HTTP_LC_HEADER_LEN - 1);
+ }
+
+ r->header_hash = hash;
+ r->lowcase_index = i;
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_v3_process_pseudo_header(ngx_http_request_t *r, ngx_str_t *name,
+ ngx_str_t *value)
+{
+ ngx_uint_t i;
+ ngx_connection_t *c;
+
+ if (name->len == 0 || name->data[0] != ':') {
+ return NGX_DONE;
+ }
+
+ c = r->connection;
+
+ if (name->len == 7 && ngx_strncmp(name->data, ":method", 7) == 0) {
+ r->method_name = *value;
+
+ for (i = 0; i < sizeof(ngx_http_v3_methods)
+ / sizeof(ngx_http_v3_methods[0]); i++)
+ {
+ if (value->len == ngx_http_v3_methods[i].name.len
+ && ngx_strncmp(value->data, ngx_http_v3_methods[i].name.data,
+ value->len) == 0)
+ {
+ r->method = ngx_http_v3_methods[i].method;
+ break;
+ }
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "http3 method \"%V\" %ui", value, r->method);
+ return NGX_OK;
+ }
+
+ if (name->len == 5 && ngx_strncmp(name->data, ":path", 5) == 0) {
+ r->uri_start = value->data;
+ r->uri_end = value->data + value->len;
+
+ if (ngx_http_parse_uri(r) != NGX_OK) {
+ ngx_log_error(NGX_LOG_INFO, c->log, 0,
+ "client sent invalid :path header: \"%V\"", value);
+ return NGX_ERROR;
+ }
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "http3 path \"%V\"", value);
+
+ return NGX_OK;
+ }
+
+ if (name->len == 7 && ngx_strncmp(name->data, ":scheme", 7) == 0) {
+ r->schema_start = value->data;
+ r->schema_end = value->data + value->len;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "http3 schema \"%V\"", value);
+
+ return NGX_OK;
+ }
+
+ if (name->len == 10 && ngx_strncmp(name->data, ":authority", 10) == 0) {
+ r->host_start = value->data;
+ r->host_end = value->data + value->len;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "http3 authority \"%V\"", value);
+
+ return NGX_OK;
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "http3 unknown pseudo header \"%V\" \"%V\"", name, value);
+
+ return NGX_OK;
+}
+
+
+ngx_int_t
+ngx_http_v3_parse_request_body(ngx_http_request_t *r, ngx_buf_t *b,
+ ngx_http_chunked_t *ctx)
+{
+ ngx_int_t rc;
+ ngx_connection_t *c;
+ ngx_http_v3_parse_data_t *st;
+ enum {
+ sw_start = 0,
+ sw_skip
+ };
+
+ c = r->connection;
+ st = ctx->h3_parse;
+
+ if (st == NULL) {
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "http3 parse request body");
+
+ st = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_parse_data_t));
+ if (st == NULL) {
+ goto failed;
+ }
+
+ ctx->h3_parse = st;
+ }
+
+ while (b->pos < b->last && ctx->size == 0) {
+
+ rc = ngx_http_v3_parse_data(c, st, *b->pos++);
+
+ if (rc > 0) {
+ ngx_http_v3_finalize_connection(c, rc,
+ "could not parse request body");
+ goto failed;
+ }
+
+ if (rc == NGX_ERROR) {
+ goto failed;
+ }
+
+ if (rc == NGX_AGAIN) {
+ ctx->state = sw_skip;
+ continue;
+ }
+
+ if (rc == NGX_DONE) {
+ return NGX_DONE;
+ }
+
+ /* rc == NGX_OK */
+
+ ctx->size = st->length;
+ ctx->state = sw_start;
+ }
+
+ if (ctx->state == sw_skip) {
+ ctx->length = 1;
+ return NGX_AGAIN;
+ }
+
+ if (b->pos == b->last) {
+ ctx->length = ctx->size;
+ return NGX_AGAIN;
+ }
+
+ return NGX_OK;
+
+failed:
+
+ return NGX_ERROR;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-16 00:25:50 +0000