Fixing whitelist and blacklist functionality
This commit is contained in:
454
src/nip011.c
Normal file
454
src/nip011.c
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@@ -0,0 +1,454 @@
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// NIP-11 Relay Information Document module
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pthread.h>
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#include <libwebsockets.h>
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#include "../nostr_core_lib/cjson/cJSON.h"
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#include "config.h"
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// Forward declarations for logging functions
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void log_info(const char* message);
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void log_success(const char* message);
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void log_error(const char* message);
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void log_warning(const char* message);
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// Forward declarations for configuration functions
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const char* get_config_value(const char* key);
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int get_config_int(const char* key, int default_value);
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int get_config_bool(const char* key, int default_value);
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// Forward declarations for global cache access
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extern unified_config_cache_t g_unified_cache;
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// Forward declarations for constants (defined in config.h and other headers)
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#define HTTP_STATUS_OK 200
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#define HTTP_STATUS_NOT_ACCEPTABLE 406
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#define HTTP_STATUS_INTERNAL_SERVER_ERROR 500
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/////////////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////////////
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// NIP-11 RELAY INFORMATION DOCUMENT
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/////////////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////////////
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// Initialize relay information using configuration system
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void init_relay_info() {
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// Get all config values first (without holding mutex to avoid deadlock)
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const char* relay_name = get_config_value("relay_name");
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const char* relay_description = get_config_value("relay_description");
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const char* relay_software = get_config_value("relay_software");
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const char* relay_version = get_config_value("relay_version");
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const char* relay_contact = get_config_value("relay_contact");
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const char* relay_pubkey = get_config_value("relay_pubkey");
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// Get config values for limitations
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int max_message_length = get_config_int("max_message_length", 16384);
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int max_subscriptions_per_client = get_config_int("max_subscriptions_per_client", 20);
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int max_limit = get_config_int("max_limit", 5000);
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int max_event_tags = get_config_int("max_event_tags", 100);
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int max_content_length = get_config_int("max_content_length", 8196);
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int default_limit = get_config_int("default_limit", 500);
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int admin_enabled = get_config_bool("admin_enabled", 0);
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pthread_mutex_lock(&g_unified_cache.cache_lock);
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// Update relay information fields
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if (relay_name) {
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strncpy(g_unified_cache.relay_info.name, relay_name, sizeof(g_unified_cache.relay_info.name) - 1);
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} else {
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strncpy(g_unified_cache.relay_info.name, "C Nostr Relay", sizeof(g_unified_cache.relay_info.name) - 1);
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}
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if (relay_description) {
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strncpy(g_unified_cache.relay_info.description, relay_description, sizeof(g_unified_cache.relay_info.description) - 1);
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} else {
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strncpy(g_unified_cache.relay_info.description, "A high-performance Nostr relay implemented in C with SQLite storage", sizeof(g_unified_cache.relay_info.description) - 1);
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}
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if (relay_software) {
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strncpy(g_unified_cache.relay_info.software, relay_software, sizeof(g_unified_cache.relay_info.software) - 1);
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} else {
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strncpy(g_unified_cache.relay_info.software, "https://git.laantungir.net/laantungir/c-relay.git", sizeof(g_unified_cache.relay_info.software) - 1);
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}
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if (relay_version) {
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strncpy(g_unified_cache.relay_info.version, relay_version, sizeof(g_unified_cache.relay_info.version) - 1);
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} else {
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strncpy(g_unified_cache.relay_info.version, "0.2.0", sizeof(g_unified_cache.relay_info.version) - 1);
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}
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if (relay_contact) {
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strncpy(g_unified_cache.relay_info.contact, relay_contact, sizeof(g_unified_cache.relay_info.contact) - 1);
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}
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if (relay_pubkey) {
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strncpy(g_unified_cache.relay_info.pubkey, relay_pubkey, sizeof(g_unified_cache.relay_info.pubkey) - 1);
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}
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// Initialize supported NIPs array
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g_unified_cache.relay_info.supported_nips = cJSON_CreateArray();
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if (g_unified_cache.relay_info.supported_nips) {
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(1)); // NIP-01: Basic protocol
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(9)); // NIP-09: Event deletion
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(11)); // NIP-11: Relay information
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(13)); // NIP-13: Proof of Work
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(15)); // NIP-15: EOSE
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(20)); // NIP-20: Command results
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(40)); // NIP-40: Expiration Timestamp
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cJSON_AddItemToArray(g_unified_cache.relay_info.supported_nips, cJSON_CreateNumber(42)); // NIP-42: Authentication
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}
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// Initialize server limitations using configuration
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g_unified_cache.relay_info.limitation = cJSON_CreateObject();
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if (g_unified_cache.relay_info.limitation) {
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "max_message_length", max_message_length);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "max_subscriptions", max_subscriptions_per_client);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "max_limit", max_limit);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "max_subid_length", SUBSCRIPTION_ID_MAX_LENGTH);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "max_event_tags", max_event_tags);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "max_content_length", max_content_length);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "min_pow_difficulty", g_unified_cache.pow_config.min_pow_difficulty);
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cJSON_AddBoolToObject(g_unified_cache.relay_info.limitation, "auth_required", admin_enabled ? cJSON_True : cJSON_False);
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cJSON_AddBoolToObject(g_unified_cache.relay_info.limitation, "payment_required", cJSON_False);
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cJSON_AddBoolToObject(g_unified_cache.relay_info.limitation, "restricted_writes", cJSON_False);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "created_at_lower_limit", 0);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "created_at_upper_limit", 2147483647);
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cJSON_AddNumberToObject(g_unified_cache.relay_info.limitation, "default_limit", default_limit);
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}
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// Initialize empty retention policies (can be configured later)
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g_unified_cache.relay_info.retention = cJSON_CreateArray();
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// Initialize language tags - set to global for now
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g_unified_cache.relay_info.language_tags = cJSON_CreateArray();
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if (g_unified_cache.relay_info.language_tags) {
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cJSON_AddItemToArray(g_unified_cache.relay_info.language_tags, cJSON_CreateString("*"));
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}
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// Initialize relay countries - set to global for now
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g_unified_cache.relay_info.relay_countries = cJSON_CreateArray();
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if (g_unified_cache.relay_info.relay_countries) {
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cJSON_AddItemToArray(g_unified_cache.relay_info.relay_countries, cJSON_CreateString("*"));
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}
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// Initialize content tags as empty array
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g_unified_cache.relay_info.tags = cJSON_CreateArray();
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// Initialize fees as empty object (no payment required by default)
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g_unified_cache.relay_info.fees = cJSON_CreateObject();
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pthread_mutex_unlock(&g_unified_cache.cache_lock);
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log_success("Relay information initialized with default values");
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}
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// Clean up relay information JSON objects
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void cleanup_relay_info() {
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pthread_mutex_lock(&g_unified_cache.cache_lock);
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if (g_unified_cache.relay_info.supported_nips) {
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cJSON_Delete(g_unified_cache.relay_info.supported_nips);
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g_unified_cache.relay_info.supported_nips = NULL;
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}
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if (g_unified_cache.relay_info.limitation) {
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cJSON_Delete(g_unified_cache.relay_info.limitation);
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g_unified_cache.relay_info.limitation = NULL;
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}
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if (g_unified_cache.relay_info.retention) {
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cJSON_Delete(g_unified_cache.relay_info.retention);
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g_unified_cache.relay_info.retention = NULL;
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}
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if (g_unified_cache.relay_info.language_tags) {
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cJSON_Delete(g_unified_cache.relay_info.language_tags);
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g_unified_cache.relay_info.language_tags = NULL;
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}
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if (g_unified_cache.relay_info.relay_countries) {
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cJSON_Delete(g_unified_cache.relay_info.relay_countries);
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g_unified_cache.relay_info.relay_countries = NULL;
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}
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if (g_unified_cache.relay_info.tags) {
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cJSON_Delete(g_unified_cache.relay_info.tags);
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g_unified_cache.relay_info.tags = NULL;
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}
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if (g_unified_cache.relay_info.fees) {
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cJSON_Delete(g_unified_cache.relay_info.fees);
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g_unified_cache.relay_info.fees = NULL;
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}
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pthread_mutex_unlock(&g_unified_cache.cache_lock);
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}
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// Generate NIP-11 compliant JSON document
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cJSON* generate_relay_info_json() {
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cJSON* info = cJSON_CreateObject();
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if (!info) {
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log_error("Failed to create relay info JSON object");
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return NULL;
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}
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pthread_mutex_lock(&g_unified_cache.cache_lock);
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// Add basic relay information
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if (strlen(g_unified_cache.relay_info.name) > 0) {
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cJSON_AddStringToObject(info, "name", g_unified_cache.relay_info.name);
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}
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if (strlen(g_unified_cache.relay_info.description) > 0) {
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cJSON_AddStringToObject(info, "description", g_unified_cache.relay_info.description);
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}
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if (strlen(g_unified_cache.relay_info.banner) > 0) {
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cJSON_AddStringToObject(info, "banner", g_unified_cache.relay_info.banner);
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}
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if (strlen(g_unified_cache.relay_info.icon) > 0) {
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cJSON_AddStringToObject(info, "icon", g_unified_cache.relay_info.icon);
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}
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if (strlen(g_unified_cache.relay_info.pubkey) > 0) {
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cJSON_AddStringToObject(info, "pubkey", g_unified_cache.relay_info.pubkey);
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}
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if (strlen(g_unified_cache.relay_info.contact) > 0) {
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cJSON_AddStringToObject(info, "contact", g_unified_cache.relay_info.contact);
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}
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// Add supported NIPs
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if (g_unified_cache.relay_info.supported_nips) {
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cJSON_AddItemToObject(info, "supported_nips", cJSON_Duplicate(g_unified_cache.relay_info.supported_nips, 1));
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}
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// Add software information
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if (strlen(g_unified_cache.relay_info.software) > 0) {
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cJSON_AddStringToObject(info, "software", g_unified_cache.relay_info.software);
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}
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if (strlen(g_unified_cache.relay_info.version) > 0) {
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cJSON_AddStringToObject(info, "version", g_unified_cache.relay_info.version);
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}
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// Add policies
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if (strlen(g_unified_cache.relay_info.privacy_policy) > 0) {
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cJSON_AddStringToObject(info, "privacy_policy", g_unified_cache.relay_info.privacy_policy);
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}
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if (strlen(g_unified_cache.relay_info.terms_of_service) > 0) {
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cJSON_AddStringToObject(info, "terms_of_service", g_unified_cache.relay_info.terms_of_service);
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}
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if (strlen(g_unified_cache.relay_info.posting_policy) > 0) {
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cJSON_AddStringToObject(info, "posting_policy", g_unified_cache.relay_info.posting_policy);
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}
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// Add server limitations
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if (g_unified_cache.relay_info.limitation) {
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cJSON_AddItemToObject(info, "limitation", cJSON_Duplicate(g_unified_cache.relay_info.limitation, 1));
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}
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// Add retention policies if configured
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if (g_unified_cache.relay_info.retention && cJSON_GetArraySize(g_unified_cache.relay_info.retention) > 0) {
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cJSON_AddItemToObject(info, "retention", cJSON_Duplicate(g_unified_cache.relay_info.retention, 1));
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}
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// Add geographical and language information
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if (g_unified_cache.relay_info.relay_countries) {
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cJSON_AddItemToObject(info, "relay_countries", cJSON_Duplicate(g_unified_cache.relay_info.relay_countries, 1));
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}
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if (g_unified_cache.relay_info.language_tags) {
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cJSON_AddItemToObject(info, "language_tags", cJSON_Duplicate(g_unified_cache.relay_info.language_tags, 1));
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}
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if (g_unified_cache.relay_info.tags && cJSON_GetArraySize(g_unified_cache.relay_info.tags) > 0) {
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cJSON_AddItemToObject(info, "tags", cJSON_Duplicate(g_unified_cache.relay_info.tags, 1));
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}
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// Add payment information if configured
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if (strlen(g_unified_cache.relay_info.payments_url) > 0) {
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cJSON_AddStringToObject(info, "payments_url", g_unified_cache.relay_info.payments_url);
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}
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if (g_unified_cache.relay_info.fees && cJSON_GetObjectItem(g_unified_cache.relay_info.fees, "admission")) {
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cJSON_AddItemToObject(info, "fees", cJSON_Duplicate(g_unified_cache.relay_info.fees, 1));
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}
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pthread_mutex_unlock(&g_unified_cache.cache_lock);
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return info;
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}
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// NIP-11 HTTP session data structure for managing buffer lifetime
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struct nip11_session_data {
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char* json_buffer;
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size_t json_length;
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int headers_sent;
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int body_sent;
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};
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// Handle NIP-11 HTTP request with proper asynchronous buffer management
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int handle_nip11_http_request(struct lws* wsi, const char* accept_header) {
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log_info("Handling NIP-11 relay information request");
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// Check if client accepts application/nostr+json
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int accepts_nostr_json = 0;
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if (accept_header) {
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if (strstr(accept_header, "application/nostr+json") != NULL) {
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accepts_nostr_json = 1;
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}
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}
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if (!accepts_nostr_json) {
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log_warning("HTTP request without proper Accept header for NIP-11");
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// Return 406 Not Acceptable
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unsigned char buf[LWS_PRE + 256];
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unsigned char *p = &buf[LWS_PRE];
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unsigned char *start = p;
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unsigned char *end = &buf[sizeof(buf) - 1];
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if (lws_add_http_header_status(wsi, HTTP_STATUS_NOT_ACCEPTABLE, &p, end)) {
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return -1;
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}
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if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CONTENT_TYPE, (unsigned char*)"text/plain", 10, &p, end)) {
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return -1;
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}
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if (lws_add_http_header_content_length(wsi, 0, &p, end)) {
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return -1;
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}
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if (lws_finalize_http_header(wsi, &p, end)) {
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return -1;
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}
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lws_write(wsi, start, p - start, LWS_WRITE_HTTP_HEADERS);
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return -1; // Close connection
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}
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// Generate relay information JSON
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cJSON* info_json = generate_relay_info_json();
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if (!info_json) {
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log_error("Failed to generate relay info JSON");
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unsigned char buf[LWS_PRE + 256];
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unsigned char *p = &buf[LWS_PRE];
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unsigned char *start = p;
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unsigned char *end = &buf[sizeof(buf) - 1];
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if (lws_add_http_header_status(wsi, HTTP_STATUS_INTERNAL_SERVER_ERROR, &p, end)) {
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return -1;
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}
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if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CONTENT_TYPE, (unsigned char*)"text/plain", 10, &p, end)) {
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return -1;
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}
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if (lws_add_http_header_content_length(wsi, 0, &p, end)) {
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return -1;
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}
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if (lws_finalize_http_header(wsi, &p, end)) {
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return -1;
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}
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lws_write(wsi, start, p - start, LWS_WRITE_HTTP_HEADERS);
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return -1;
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}
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char* json_string = cJSON_Print(info_json);
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cJSON_Delete(info_json);
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if (!json_string) {
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log_error("Failed to serialize relay info JSON");
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unsigned char buf[LWS_PRE + 256];
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unsigned char *p = &buf[LWS_PRE];
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unsigned char *start = p;
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unsigned char *end = &buf[sizeof(buf) - 1];
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if (lws_add_http_header_status(wsi, HTTP_STATUS_INTERNAL_SERVER_ERROR, &p, end)) {
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return -1;
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}
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if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CONTENT_TYPE, (unsigned char*)"text/plain", 10, &p, end)) {
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return -1;
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}
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if (lws_add_http_header_content_length(wsi, 0, &p, end)) {
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return -1;
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}
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if (lws_finalize_http_header(wsi, &p, end)) {
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return -1;
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}
|
||||
lws_write(wsi, start, p - start, LWS_WRITE_HTTP_HEADERS);
|
||||
return -1;
|
||||
}
|
||||
|
||||
size_t json_len = strlen(json_string);
|
||||
|
||||
// Allocate session data to manage buffer lifetime across callbacks
|
||||
struct nip11_session_data* session_data = malloc(sizeof(struct nip11_session_data));
|
||||
if (!session_data) {
|
||||
log_error("Failed to allocate NIP-11 session data");
|
||||
free(json_string);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Store JSON buffer in session data for asynchronous handling
|
||||
session_data->json_buffer = json_string;
|
||||
session_data->json_length = json_len;
|
||||
session_data->headers_sent = 0;
|
||||
session_data->body_sent = 0;
|
||||
|
||||
// Store session data in WSI user data for callback access
|
||||
lws_set_wsi_user(wsi, session_data);
|
||||
|
||||
// Prepare HTTP response with CORS headers
|
||||
unsigned char buf[LWS_PRE + 1024];
|
||||
unsigned char *p = &buf[LWS_PRE];
|
||||
unsigned char *start = p;
|
||||
unsigned char *end = &buf[sizeof(buf) - 1];
|
||||
|
||||
// Add status
|
||||
if (lws_add_http_header_status(wsi, HTTP_STATUS_OK, &p, end)) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Add content type
|
||||
if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CONTENT_TYPE,
|
||||
(unsigned char*)"application/nostr+json", 22, &p, end)) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Add content length
|
||||
if (lws_add_http_header_content_length(wsi, json_len, &p, end)) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Add CORS headers as required by NIP-11
|
||||
if (lws_add_http_header_by_name(wsi, (unsigned char*)"access-control-allow-origin:",
|
||||
(unsigned char*)"*", 1, &p, end)) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
if (lws_add_http_header_by_name(wsi, (unsigned char*)"access-control-allow-headers:",
|
||||
(unsigned char*)"content-type, accept", 20, &p, end)) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
if (lws_add_http_header_by_name(wsi, (unsigned char*)"access-control-allow-methods:",
|
||||
(unsigned char*)"GET, OPTIONS", 12, &p, end)) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Finalize headers
|
||||
if (lws_finalize_http_header(wsi, &p, end)) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Write headers
|
||||
if (lws_write(wsi, start, p - start, LWS_WRITE_HTTP_HEADERS) < 0) {
|
||||
free(session_data->json_buffer);
|
||||
free(session_data);
|
||||
return -1;
|
||||
}
|
||||
|
||||
session_data->headers_sent = 1;
|
||||
|
||||
// Request callback for body transmission
|
||||
lws_callback_on_writable(wsi);
|
||||
|
||||
log_success("NIP-11 headers sent, body transmission scheduled");
|
||||
return 0;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user