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Organize code. Separate of nostr event handling.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| /** | ||
| * @file nostr.c | ||
| * @brief [description] | ||
| */ | ||
|
|
||
| /*----------------------------------------------------------------------------*/ | ||
| /* Headers */ | ||
| /*----------------------------------------------------------------------------*/ | ||
| #include "nostr.h" | ||
| #include "../websockets/websockets.h" | ||
| #include <libwebsockets.h> | ||
| #include <string.h> | ||
| #include <stdio.h> | ||
| #include <yyjson.h> | ||
|
|
||
| /*----------------------------------------------------------------------------*/ | ||
| /* Prototype functions */ | ||
| /*----------------------------------------------------------------------------*/ | ||
|
|
||
| /*----------------------------------------------------------------------------*/ | ||
| /* Structs */ | ||
| /*----------------------------------------------------------------------------*/ | ||
|
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||
| /*----------------------------------------------------------------------------*/ | ||
| /* Static variables */ | ||
| /*----------------------------------------------------------------------------*/ | ||
|
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||
| /*----------------------------------------------------------------------------*/ | ||
| /* Static functions */ | ||
| /*----------------------------------------------------------------------------*/ | ||
|
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| static int send_ok_message( | ||
| const int max_write_buffer_len, | ||
| const char* id, | ||
| const char* accepted, | ||
| const char* reason, | ||
| char* write_buffer) | ||
| { | ||
| return snprintf(write_buffer, max_write_buffer_len, "[\"OK\",\"%s\",%s,\"%s\"]", id, accepted, reason); | ||
| } | ||
|
|
||
| static int send_eose_message( | ||
| const int max_write_buffer_len, | ||
| const char* sub_id, | ||
| char* write_buffer) | ||
| { | ||
| return snprintf(write_buffer, max_write_buffer_len, "[\"EOSE\",\"%s\"]", sub_id); | ||
| } | ||
|
|
||
| static void nostr_callback_event( | ||
| yyjson_val* root, | ||
| const int max_write_buffer_len, | ||
| char* write_buffer) | ||
| { | ||
| yyjson_val* event_data = yyjson_arr_get(root, 1); | ||
| if (!yyjson_is_obj(event_data)) { | ||
| websocket_printf("EVENT data is not json\n"); | ||
| return; | ||
| } | ||
|
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||
| yyjson_val* id_obj = yyjson_obj_get(event_data, "id"); | ||
| yyjson_val* pubkey_obj = yyjson_obj_get(event_data, "pubkey"); | ||
| yyjson_val* created_at_obj = yyjson_obj_get(event_data, "created_at"); | ||
| yyjson_val* kind_obj = yyjson_obj_get(event_data, "kind"); | ||
| yyjson_val* tags_obj = yyjson_obj_get(event_data, "tags"); | ||
| yyjson_val* content_obj = yyjson_obj_get(event_data, "content"); | ||
| yyjson_val* sig_obj = yyjson_obj_get(event_data, "sig"); | ||
|
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| int event_err = 0; | ||
| if (!yyjson_is_str(id_obj)) { | ||
| websocket_printf("EVENT error : id is not str\n"); | ||
| event_err = 1; | ||
| } | ||
| if (!yyjson_is_str(pubkey_obj)) { | ||
| websocket_printf("EVENT error : pubkey is not str\n"); | ||
| event_err = 1; | ||
| } | ||
| if (!yyjson_is_num(created_at_obj)) { | ||
| websocket_printf("EVENT error : created_at is not num\n"); | ||
| event_err = 1; | ||
| } | ||
| if (!yyjson_is_num(kind_obj)) { | ||
| websocket_printf("EVENT error : kind is not num\n"); | ||
| event_err = 1; | ||
| } | ||
| if (!yyjson_is_str(content_obj)) { | ||
| websocket_printf("EVENT error : content is not str\n"); | ||
| event_err = 1; | ||
| } | ||
| if (!yyjson_is_arr(tags_obj)) { | ||
| websocket_printf("EVENT error : tags is not array\n"); | ||
| event_err = 1; | ||
| } | ||
| if (!yyjson_is_str(sig_obj)) { | ||
| websocket_printf("EVENT error : sig is not str\n"); | ||
| event_err = 1; | ||
| } | ||
|
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||
| const char* id = yyjson_get_str(id_obj); | ||
| const char* accepted = (event_err == 0) ? "true" : "false"; | ||
| const char* reason = (event_err == 0) ? "" : "error: event data is broken"; | ||
|
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| send_ok_message(max_write_buffer_len, id, accepted, reason, write_buffer); | ||
| return; | ||
| } | ||
|
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| static void nostr_callback_req( | ||
| yyjson_val* root, | ||
| const int max_write_buffer_len, | ||
| char* write_buffer) | ||
| { | ||
| // get sub_id | ||
| yyjson_val* sub_id_obj = yyjson_arr_get(root, 1); | ||
| if (!yyjson_is_str(sub_id_obj)) { | ||
| websocket_printf("sub_id is not str.\n"); | ||
| return; | ||
| } | ||
| const char* sub_id = yyjson_get_str(sub_id_obj); | ||
|
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| send_eose_message(max_write_buffer_len, sub_id, write_buffer); | ||
| return; | ||
| } | ||
|
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| static void nostr_callback_close( | ||
| yyjson_val* root, | ||
| const int max_write_buffer_len, | ||
| char* write_buffer) | ||
| { | ||
| // get sub_id | ||
| yyjson_val* sub_id_obj = yyjson_arr_get(root, 1); | ||
| if (!yyjson_is_str(sub_id_obj)) { | ||
| websocket_printf("sub_id is not str.\n"); | ||
| return; | ||
| } | ||
| const char* sub_id = yyjson_get_str(sub_id_obj); | ||
|
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| // Send EOSE message | ||
| snprintf(write_buffer, max_write_buffer_len, "[\"EOSE\",\"%s\"]", sub_id); | ||
| return; | ||
| } | ||
|
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| /*----------------------------------------------------------------------------*/ | ||
| /* Functions */ | ||
| /*----------------------------------------------------------------------------*/ | ||
|
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| int nostr_callback( | ||
| const char* data, | ||
| const int max_write_buffer_len, | ||
| char* write_buffer) | ||
| { | ||
| size_t len = strlen(data); | ||
| yyjson_doc* doc = yyjson_read(data, len, 0); | ||
| if (doc == NULL) { | ||
| websocket_printf("yyjson_read failed.\n"); | ||
| goto FINALIZE; | ||
| } | ||
|
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| yyjson_val* root = yyjson_doc_get_root(doc); | ||
| if (!yyjson_is_arr(root)) { | ||
| websocket_printf("yyjson_get_root failed.\n"); | ||
| goto FINALIZE; | ||
| } | ||
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| yyjson_val* event_type_obj = yyjson_arr_get(root, 0); | ||
| if (!yyjson_is_str(event_type_obj)) { | ||
| websocket_printf("event type is not str.\n"); | ||
| goto FINALIZE; | ||
| } | ||
|
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| const char* event_type = yyjson_get_str(event_type_obj); | ||
|
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| if (strstr(event_type, "EVENT")) { | ||
| nostr_callback_event(root, max_write_buffer_len, write_buffer); | ||
| } else if (strstr(event_type, "REQ")) { | ||
| nostr_callback_req(root, max_write_buffer_len, write_buffer); | ||
| } else if (strstr(event_type, "CLOSE")) { | ||
| nostr_callback_close(root, max_write_buffer_len, write_buffer); | ||
| } | ||
|
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| FINALIZE: | ||
| if (doc != NULL) { | ||
| yyjson_doc_free(doc); | ||
| } | ||
|
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||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| /** | ||
| * @file nostr.h | ||
| * @brief [description] | ||
| */ | ||
|
|
||
| #ifndef _SHOOTING_STR_NOSTR_H_ | ||
| #define _SHOOTING_STR_NOSTR_H_ | ||
|
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| /*----------------------------------------------------------------------------*/ | ||
| /* Headers */ | ||
| /*----------------------------------------------------------------------------*/ | ||
| #include <stdio.h> | ||
|
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||
| /*----------------------------------------------------------------------------*/ | ||
| /* Types */ | ||
| /*----------------------------------------------------------------------------*/ | ||
|
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| /*----------------------------------------------------------------------------*/ | ||
| /* Structs */ | ||
| /*----------------------------------------------------------------------------*/ | ||
|
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| /*----------------------------------------------------------------------------*/ | ||
| /* Prototype functions */ | ||
| /*----------------------------------------------------------------------------*/ | ||
| int nostr_callback( | ||
| const char* data, | ||
| const int max_write_buffer_len, | ||
| char* write_buffer); | ||
|
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||
| #endif |