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Diffstat (limited to 'src/core/lib/channel/http_server_filter.c')
-rw-r--r--src/core/lib/channel/http_server_filter.c113
1 files changed, 76 insertions, 37 deletions
diff --git a/src/core/lib/channel/http_server_filter.c b/src/core/lib/channel/http_server_filter.c
index fb70de8e96..8d3c488ea0 100644
--- a/src/core/lib/channel/http_server_filter.c
+++ b/src/core/lib/channel/http_server_filter.c
@@ -37,6 +37,7 @@
#include <grpc/support/log.h>
#include <string.h>
#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/security/util/b64.h"
#include "src/core/lib/slice/percent_encoding.h"
#include "src/core/lib/slice/slice_internal.h"
#include "src/core/lib/slice/slice_string_helpers.h"
@@ -51,8 +52,8 @@ typedef struct call_data {
grpc_linked_mdelem status;
grpc_linked_mdelem content_type;
- /* did this request come with payload-bin */
- bool seen_payload_bin;
+ /* did this request come with path query containing request payload */
+ bool seen_path_with_query;
/* flag to ensure payload_bin is delivered only once */
bool payload_bin_delivered;
@@ -61,7 +62,7 @@ typedef struct call_data {
bool *recv_cacheable_request;
/** Closure to call when finished with the hs_on_recv hook */
grpc_closure *on_done_recv;
- /** Closure to call when we retrieve read message from the payload-bin header
+ /** Closure to call when we retrieve read message from the path URI
*/
grpc_closure *recv_message_ready;
grpc_closure *on_complete;
@@ -101,7 +102,7 @@ static void add_error(const char *error_name, grpc_error **cumulative,
grpc_error *new) {
if (new == GRPC_ERROR_NONE) return;
if (*cumulative == GRPC_ERROR_NONE) {
- *cumulative = GRPC_ERROR_CREATE(error_name);
+ *cumulative = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_name);
}
*cumulative = grpc_error_add_child(*cumulative, new);
}
@@ -125,27 +126,32 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx,
*calld->recv_cacheable_request = true;
} else {
add_error(error_name, &error,
- grpc_attach_md_to_error(GRPC_ERROR_CREATE("Bad header"),
- b->idx.named.method->md));
+ grpc_attach_md_to_error(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Bad header"),
+ b->idx.named.method->md));
}
grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.method);
} else {
- add_error(error_name, &error,
- grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"),
- GRPC_ERROR_STR_KEY, ":method"));
+ add_error(
+ error_name, &error,
+ grpc_error_set_str(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing header"),
+ GRPC_ERROR_STR_KEY, grpc_slice_from_static_string(":method")));
}
if (b->idx.named.te != NULL) {
if (!grpc_mdelem_eq(b->idx.named.te->md, GRPC_MDELEM_TE_TRAILERS)) {
add_error(error_name, &error,
- grpc_attach_md_to_error(GRPC_ERROR_CREATE("Bad header"),
- b->idx.named.te->md));
+ grpc_attach_md_to_error(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Bad header"),
+ b->idx.named.te->md));
}
grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.te);
} else {
add_error(error_name, &error,
- grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"),
- GRPC_ERROR_STR_KEY, "te"));
+ grpc_error_set_str(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing header"),
+ GRPC_ERROR_STR_KEY, grpc_slice_from_static_string("te")));
}
if (b->idx.named.scheme != NULL) {
@@ -153,14 +159,17 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx,
!grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_HTTPS) &&
!grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_GRPC)) {
add_error(error_name, &error,
- grpc_attach_md_to_error(GRPC_ERROR_CREATE("Bad header"),
- b->idx.named.scheme->md));
+ grpc_attach_md_to_error(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Bad header"),
+ b->idx.named.scheme->md));
}
grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.scheme);
} else {
- add_error(error_name, &error,
- grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"),
- GRPC_ERROR_STR_KEY, ":scheme"));
+ add_error(
+ error_name, &error,
+ grpc_error_set_str(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing header"),
+ GRPC_ERROR_STR_KEY, grpc_slice_from_static_string(":scheme")));
}
if (b->idx.named.content_type != NULL) {
@@ -194,8 +203,46 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx,
if (b->idx.named.path == NULL) {
add_error(error_name, &error,
- grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"),
- GRPC_ERROR_STR_KEY, ":path"));
+ grpc_error_set_str(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing header"),
+ GRPC_ERROR_STR_KEY, grpc_slice_from_static_string(":path")));
+ } else if (*calld->recv_cacheable_request == true) {
+ /* We have a cacheable request made with GET verb. The path contains the
+ * query parameter which is base64 encoded request payload. */
+ const char k_query_separator = '?';
+ grpc_slice path_slice = GRPC_MDVALUE(b->idx.named.path->md);
+ uint8_t *path_ptr = (uint8_t *)GRPC_SLICE_START_PTR(path_slice);
+ size_t path_length = GRPC_SLICE_LENGTH(path_slice);
+ /* offset of the character '?' */
+ size_t offset = 0;
+ for (offset = 0; *path_ptr != k_query_separator && offset < path_length;
+ path_ptr++, offset++)
+ ;
+ if (offset < path_length) {
+ grpc_slice query_slice =
+ grpc_slice_sub(path_slice, offset + 1, path_length);
+
+ /* substitute path metadata with just the path (not query) */
+ grpc_mdelem mdelem_path_without_query = grpc_mdelem_from_slices(
+ exec_ctx, GRPC_MDSTR_PATH, grpc_slice_sub(path_slice, 0, offset));
+
+ grpc_metadata_batch_substitute(exec_ctx, b, b->idx.named.path,
+ mdelem_path_without_query);
+
+ /* decode payload from query and add to the slice buffer to be returned */
+ const int k_url_safe = 1;
+ grpc_slice_buffer_add(
+ &calld->read_slice_buffer,
+ grpc_base64_decode(exec_ctx,
+ (const char *)GRPC_SLICE_START_PTR(query_slice),
+ k_url_safe));
+ grpc_slice_buffer_stream_init(&calld->read_stream,
+ &calld->read_slice_buffer, 0);
+ calld->seen_path_with_query = true;
+ grpc_slice_unref_internal(exec_ctx, query_slice);
+ } else {
+ gpr_log(GPR_ERROR, "GET request without QUERY");
+ }
}
if (b->idx.named.host != NULL && b->idx.named.authority == NULL) {
@@ -212,19 +259,11 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx,
}
if (b->idx.named.authority == NULL) {
- add_error(error_name, &error,
- grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"),
- GRPC_ERROR_STR_KEY, ":authority"));
- }
-
- if (b->idx.named.grpc_payload_bin != NULL) {
- calld->seen_payload_bin = true;
- grpc_slice_buffer_add(&calld->read_slice_buffer,
- grpc_slice_ref_internal(
- GRPC_MDVALUE(b->idx.named.grpc_payload_bin->md)));
- grpc_slice_buffer_stream_init(&calld->read_stream,
- &calld->read_slice_buffer, 0);
- grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.grpc_payload_bin);
+ add_error(
+ error_name, &error,
+ grpc_error_set_str(
+ GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing header"),
+ GRPC_ERROR_STR_KEY, grpc_slice_from_static_string(":authority")));
}
return error;
@@ -247,8 +286,8 @@ static void hs_on_complete(grpc_exec_ctx *exec_ctx, void *user_data,
grpc_error *err) {
grpc_call_element *elem = user_data;
call_data *calld = elem->call_data;
- /* Call recv_message_ready if we got the payload via the header field */
- if (calld->seen_payload_bin && calld->recv_message_ready != NULL) {
+ /* Call recv_message_ready if we got the payload via the path field */
+ if (calld->seen_path_with_query && calld->recv_message_ready != NULL) {
*calld->pp_recv_message = calld->payload_bin_delivered
? NULL
: (grpc_byte_stream *)&calld->read_stream;
@@ -263,7 +302,7 @@ static void hs_recv_message_ready(grpc_exec_ctx *exec_ctx, void *user_data,
grpc_error *err) {
grpc_call_element *elem = user_data;
call_data *calld = elem->call_data;
- if (calld->seen_payload_bin) {
+ if (calld->seen_path_with_query) {
/* do nothing. This is probably a GET request, and payload will be returned
in hs_on_complete callback. */
} else {
@@ -358,7 +397,7 @@ static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx,
/* Destructor for call_data */
static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
const grpc_call_final_info *final_info,
- void *ignored) {
+ grpc_closure *ignored) {
call_data *calld = elem->call_data;
grpc_slice_buffer_destroy_internal(exec_ctx, &calld->read_slice_buffer);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-30 13:36:02 +0000