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api: Configuration modification support (if enabled in conf file)

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Luke Dashjr 2024-12-13 22:55:26 +00:00
parent befc30777c
commit 85fd02c5e1
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GPG Key ID: A291A2C45D0C504A
15 changed files with 973 additions and 3 deletions
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3
CMakeLists.txt
View File

@ -27,6 +27,9 @@ set(WEB_RESOURCES
www/home.html www/home.html
www/clients_top.html www/clients_top.html
www/coinbaser_top.html www/coinbaser_top.html
www/config.html
www/config_errors.html
www/config_restart.html
www/threads_top.html www/threads_top.html
www/foot.html www/foot.html
www/assets/style.css www/assets/style.css

568
src/datum_api.c
View File

@ -37,6 +37,7 @@
#include <assert.h> #include <assert.h>
#include <limits.h> #include <limits.h>
#include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <microhttpd.h> #include <microhttpd.h>
@ -49,6 +50,8 @@
#include "datum_api.h" #include "datum_api.h"
#include "datum_blocktemplates.h" #include "datum_blocktemplates.h"
#include "datum_conf.h" #include "datum_conf.h"
#include "datum_gateway.h"
#include "datum_jsonrpc.h"
#include "datum_utils.h" #include "datum_utils.h"
#include "datum_stratum.h" #include "datum_stratum.h"
#include "datum_sockets.h" #include "datum_sockets.h"
@ -853,6 +856,564 @@ int datum_api_client_dashboard(struct MHD_Connection *connection) {
return ret; return ret;
} }
size_t datum_api_fill_config_var(const char *var_start, const size_t var_name_len, char * const replacement, const size_t replacement_max_len, const T_DATUM_API_DASH_VARS * const vardata) {
const char *colon_pos = memchr(var_start, ':', var_name_len);
const char *var_start_2 = colon_pos ? &colon_pos[1] : var_start;
const char * const var_end = &var_start[var_name_len];
const size_t var_name_len_2 = var_end - var_start_2;
const char * const underscore_pos = memchr(var_start_2, '_', var_name_len_2);
int val;
if (var_name_len_2 == 3 && 0 == strncmp(var_start_2, "*ro", 3)) {
val = !datum_config.api_modify_conf;
if (!colon_pos) {
var_start = "readonly:";
colon_pos = &var_start[8];
}
} else if (var_name_len_2 == 24 && 0 == strncmp(var_start_2, "*datum_pool_pass_workers", 24)) {
val = datum_config.datum_pool_pass_workers && !datum_config.datum_pool_pass_full_users;
} else if (var_name_len_2 == 16 && 0 == strncmp(var_start_2, "*datum_pool_host", 16)) {
const char *s = NULL;
if (datum_config.datum_pool_host[0]) {
s = datum_config.datum_pool_host;
} else if (datum_config.config_json) {
const json_t * const config = datum_config.config_json;
json_t *j = json_object_get(config, "datum");
if (j) j = json_is_object(j) ? json_object_get(j, "pool_host(old)") : NULL;
if (j && json_is_string(j) && json_string_length(j) <= 1023) {
s = json_string_value(j);
}
}
if (!s) {
const T_DATUM_CONFIG_ITEM * const cfginfo = datum_config_get_option_info("datum", 5, "pool_host", 9);
s = cfginfo->default_string[0];
}
size_t copy_sz = strlen(s);
if (copy_sz >= replacement_max_len) copy_sz = replacement_max_len - 1;
memcpy(replacement, s, copy_sz);
return copy_sz;
} else if (var_name_len_2 == 27 && 0 == strncmp(var_start_2, "*username_behaviour_private", 27)) {
val = !(datum_config.datum_pool_pass_workers || datum_config.datum_pool_pass_full_users);
} else if (var_name_len_2 == 22 && 0 == strncmp(var_start_2, "*reward_sharing_prefer", 22)) {
val = (!datum_config.datum_pooled_mining_only) && datum_config.datum_pool_host[0];
} else if (var_name_len_2 == 21 && 0 == strncmp(var_start_2, "*reward_sharing_never", 21)) {
val = (!datum_config.datum_pooled_mining_only) && !datum_config.datum_pool_host[0];
} else if (var_name_len_2 == 34 && 0 == strncmp(var_start_2, "*mining_coinbase_tag_secondary_max", 34)) {
val = 88 - strlen(datum_config.mining_coinbase_tag_primary);
if (val > 60) val = 60;
} else if (var_name_len_2 == 11 && 0 == strncmp(var_start_2, "*CSRF_TOKEN", 11)) {
size_t copy_sz = strlen(datum_config.api_csrf_token);
if (copy_sz >= replacement_max_len) copy_sz = replacement_max_len - 1;
memcpy(replacement, datum_config.api_csrf_token, copy_sz);
return copy_sz;
} else if (underscore_pos) {
const T_DATUM_CONFIG_ITEM * const item = datum_config_get_option_info(var_start_2, underscore_pos - var_start_2, &underscore_pos[1], var_end - &underscore_pos[1]);
if (item) {
switch (item->var_type) {
case DATUM_CONF_INT: {
val = *((int *)item->ptr);
break;
}
case DATUM_CONF_BOOL: {
val = *((bool *)item->ptr);
if ((!colon_pos) && replacement_max_len > 5) {
const size_t len = val ? 4 : 5;
memcpy(replacement, val ? "true" : "false", len);
return len;
}
break;
}
case DATUM_CONF_STRING: {
const char * const s = (char *)item->ptr;
if (colon_pos) {
DLOG_ERROR("%s: '%.*s' modifier not implemented for %s", __func__, (int)(colon_pos - var_start), var_start, "DATUM_CONF_STRING");
break;
}
size_t copy_sz = strlen(s);
if (copy_sz >= replacement_max_len) copy_sz = replacement_max_len - 1;
memcpy(replacement, s, copy_sz);
return copy_sz;
}
case DATUM_CONF_STRING_ARRAY: {
DLOG_ERROR("%s: %s not implemented", __func__, "DATUM_CONF_STRING_ARRAY");
break;
}
}
} else {
DLOG_ERROR("%s: '%.*s' not implemented", __func__, (int)(var_end - var_start_2), var_start_2);
return 0;
}
} else {
DLOG_ERROR("%s: '%.*s' not implemented", __func__, (int)(var_end - var_start_2), var_start_2);
return 0;
}
assert(replacement_max_len > 0);
if (colon_pos) {
if (0 == strncmp(var_start, "readonly:", 9) || 0 == strncmp(var_start, "selected:", 9) || 0 == strncmp(var_start, "checked:", 8) || 0 == strncmp(var_start, "disabled:", 9)) {
size_t attr_len;
if (val) {
attr_len = colon_pos - var_start;
if (attr_len + 2 > replacement_max_len) attr_len = replacement_max_len - 2;
replacement[0] = ' ';
memcpy(&replacement[1], var_start, attr_len);
++attr_len;
} else {
attr_len = 0;
}
return attr_len;
} else if (0 == strncmp(var_start, "msg:", 4)) {
if (val) {
static const char * const msg = "<br/><em>Config file disallows editing</em>";
const size_t len = strlen(msg);
memcpy(replacement, msg, len);
return len;
} else {
return 0;
}
} else {
DLOG_ERROR("%s: '%.*s' modifier not implemented", __func__, (int)(colon_pos - var_start), var_start);
return 0;
}
}
return snprintf(replacement, replacement_max_len, "%d", val);
}
int datum_api_config_dashboard(struct MHD_Connection *connection) {
struct MHD_Response *response;
size_t sz = 0, max_sz = 0;
int ret;
char *output = NULL;
max_sz = www_config_html_sz * 2;
output = malloc(max_sz);
if (!output) {
return MHD_NO;
}
sz += datum_api_fill_vars(www_config_html, output, max_sz, datum_api_fill_config_var, NULL);
response = MHD_create_response_from_buffer(sz, output, MHD_RESPMEM_MUST_FREE);
MHD_add_response_header(response, "Content-Type", "text/html");
http_resp_prevent_caching(response);
ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
MHD_destroy_response(response);
return ret;
}
#ifndef JSON_PRESERVE_ORDER
#define JSON_PRESERVE_ORDER 0
#endif
// Only modifies config_json; writing is done later
void datum_api_json_modify_new(const char * const category, const char * const key, json_t * const val) {
json_t * const config = datum_config.config_json;
assert(config);
json_t *j = json_object_get(config, category);
if (!j) {
j = json_object();
json_object_set_new(config, category, j);
}
json_object_set_new(j, key, val);
}
bool datum_api_json_write() {
json_t * const config = datum_config.config_json;
assert(config);
assert(datum_gateway_config_filename);
char buf[0x100];
int rv = snprintf(buf, sizeof(buf) - 4, "%s", datum_gateway_config_filename);
assert(rv > 0);
strcpy(&buf[rv], ".new");
if (json_dump_file(config, buf, JSON_PRESERVE_ORDER | JSON_INDENT(4))) {
DLOG_ERROR("Failed to write new config to %s", buf);
return false;
}
if (rename(buf, datum_gateway_config_filename)) {
DLOG_ERROR("Failed to rename new config %s to %s", buf, datum_gateway_config_filename);
return false;
}
DLOG_INFO("Wrote new config to %s", datum_gateway_config_filename);
return true;
}
struct datum_api_config_set_status {
json_t *errors;
bool modified_config;
bool need_restart;
};
// This does several steps:
// - If the value is unchanged, return true without doing anything
// - Validate the value without changing anything
// - Change the runtime dataum_config (and ensure it goes live)
// - Modify the config file
// If anything fails (including validation), errors is appended and false is returned
bool datum_api_config_set(const char * const key, const char * const val, struct datum_api_config_set_status * const status) {
json_t * const errors = status->errors;
if (0 == strcmp(key, "mining_pool_address")) {
if (0 == strcmp(val, datum_config.mining_pool_address)) return true;
unsigned char dummy[64];
if (!addr_2_output_script(val, &dummy[0], 64)) {
json_array_append_new(errors, json_string_nocheck("Invalid Bitcoin Address"));
return false;
}
strcpy(datum_config.mining_pool_address, val);
datum_api_json_modify_new("mining", "pool_address", json_string(val));
} else if (0 == strcmp(key, "username_behaviour")) {
if (0 == strcmp(val, "datum_pool_pass_full_users")) {
if (datum_config.datum_pool_pass_full_users) return true;
datum_config.datum_pool_pass_full_users = true;
// datum_pool_pass_workers doesn't matter with datum_pool_pass_full_users enabled
} else if (0 == strcmp(val, "datum_pool_pass_workers")) {
if (datum_config.datum_pool_pass_workers && !datum_config.datum_pool_pass_full_users) return true;
datum_config.datum_pool_pass_full_users = false;
datum_config.datum_pool_pass_workers = true;
} else if (0 == strcmp(val, "private")) {
if (!(datum_config.datum_pool_pass_workers || datum_config.datum_pool_pass_full_users)) return true;
datum_config.datum_pool_pass_full_users = false;
datum_config.datum_pool_pass_workers = false;
} else {
json_array_append_new(errors, json_string_nocheck("Invalid option for \"Send Miner Usernames To Pool\""));
return false;
}
datum_api_json_modify_new("datum", "pool_pass_full_users", json_boolean(datum_config.datum_pool_pass_full_users));
if (!datum_config.datum_pool_pass_full_users) {
datum_api_json_modify_new("datum", "pool_pass_workers", json_boolean(datum_config.datum_pool_pass_workers));
}
} else if (0 == strcmp(key, "mining_coinbase_tag_secondary")) {
if (0 == strcmp(val, datum_config.mining_coinbase_tag_secondary)) return true;
size_t len_limit = 88 - strlen(datum_config.mining_coinbase_tag_primary);
if (len_limit > 60) len_limit = 60;
if (strlen(val) > len_limit) {
json_array_append_new(errors, json_string_nocheck("Coinbase Tag is too long"));
return false;
}
strcpy(datum_config.mining_coinbase_tag_secondary, val);
datum_api_json_modify_new("mining", "coinbase_tag_secondary", json_string(val));
} else if (0 == strcmp(key, "mining_coinbase_unique_id")) {
const int val_int = datum_atoi_strict(val, strlen(val));
if (val_int == datum_config.coinbase_unique_id) return true;
if (val_int > 65535 || val_int < 0) {
json_array_append_new(errors, json_string_nocheck("Unique Gateway ID must be between 0 and 65535"));
return false;
}
datum_config.coinbase_unique_id = val_int;
datum_api_json_modify_new("mining", "coinbase_unique_id", json_integer(val_int));
} else if (0 == strcmp(key, "reward_sharing")) {
json_t * const config = datum_config.config_json;
assert(config);
bool want_datum_pool_host = false;
if (0 == strcmp(val, "require")) {
if (datum_config.datum_pool_host[0] && datum_config.datum_pooled_mining_only) return true;
datum_config.datum_pooled_mining_only = true;
want_datum_pool_host = true;
} else if (0 == strcmp(val, "prefer")) {
if (datum_config.datum_pool_host[0] && !datum_config.datum_pooled_mining_only) return true;
datum_config.datum_pooled_mining_only = false;
want_datum_pool_host = true;
} else if (0 == strcmp(val, "never")) {
if (!(datum_config.datum_pool_host[0] || datum_config.datum_pooled_mining_only)) return true;
datum_config.datum_pooled_mining_only = false;
datum_config.datum_pool_host[0] = '\0';
// Only copy the old value if it's in the config file
json_t *j = json_object_get(config, "datum");
if (j) j = json_is_object(j) ? json_object_get(j, "pool_host") : NULL;
if (j) {
datum_api_json_modify_new("datum", "pool_host(old)", json_incref(j));
}
datum_api_json_modify_new("datum", "pool_host", json_string_nocheck(""));
} else {
json_array_append_new(errors, json_string_nocheck("Invalid option for \"Collaborative reward sharing\""));
return false;
}
if (want_datum_pool_host && !datum_config.datum_pool_host[0]) {
json_t *j = json_object_get(config, "datum");
if (j) j = json_is_object(j) ? json_object_get(j, "pool_host(old)") : NULL;
if (j && json_is_string(j) && json_string_length(j) <= 1023) {
strcpy(datum_config.datum_pool_host, json_string_value(j));
json_object_del(j, "pool_host(old)");
datum_api_json_modify_new("datum", "pool_host", json_string(datum_config.datum_pool_host));
} else {
const T_DATUM_CONFIG_ITEM * const cfginfo = datum_config_get_option_info("datum", 5, "pool_host", 9);
strcpy(datum_config.datum_pool_host, cfginfo->default_string[0]);
// Avoiding using null here because older versions handled it poorly
json_t *j = json_object_get(config, "datum");
if (j) json_object_del(j, "pool_host");
}
}
datum_api_json_modify_new("datum", "pooled_mining_only", json_boolean(datum_config.datum_pooled_mining_only));
// TODO: apply change without restarting
status->need_restart = true;
} else if (0 == strcmp(key, "datum_pool_host")) {
if (0 == strcmp(val, datum_config.datum_pool_host)) return true;
if (strlen(val) > 1023) {
json_array_append_new(errors, json_string_nocheck("Pool Host is too long"));
return false;
}
if (datum_config.datum_pool_host[0]) {
strcpy(datum_config.datum_pool_host, val);
datum_api_json_modify_new("datum", "pool_host", json_string(val));
// TODO: apply change without restarting
// TODO: switch pools smoother (keep old connection alive for share submissions until those jobs expire)
status->need_restart = true;
} else {
json_t * const config = datum_config.config_json;
assert(config);
json_t *j = json_object_get(config, "datum");
if (j) j = json_is_object(j) ? json_object_get(j, "pool_host(old)") : NULL;
const T_DATUM_CONFIG_ITEM * const cfginfo = datum_config_get_option_info("datum", 5, "pool_host", 9);
// Avoid setting the default host in the config file, unless something else was already there
if (0 != strcmp(val, cfginfo->default_string[0]) || json_is_string(j)) {
datum_api_json_modify_new("datum", "pool_host(old)", json_string(val));
}
}
} else if (0 == strcmp(key, "datum_pool_port")) {
const int val_int = datum_atoi_strict(val, strlen(val));
if (val_int == datum_config.datum_pool_port) return true;
if (val_int > 65535 || val_int < 1) {
json_array_append_new(errors, json_string_nocheck("Pool Port must be between 1 and 65535"));
return false;
}
datum_config.datum_pool_port = val_int;
datum_api_json_modify_new("datum", "pool_port", json_integer(val_int));
// TODO: apply change without restarting
// TODO: switch pools smoother (keep old connection alive for share submissions until those jobs expire)
status->need_restart = true;
} else if (0 == strcmp(key, "datum_pool_pubkey")) {
if (0 == strcmp(val, datum_config.datum_pool_pubkey)) return true;
if (strlen(val) > 1023) {
json_array_append_new(errors, json_string_nocheck("Pool Pubkey is too long"));
return false;
}
strcpy(datum_config.datum_pool_pubkey, val);
datum_api_json_modify_new("datum", "pool_pubkey", json_string(val));
// TODO: apply change without restarting
// TODO: switch pools smoother (keep old connection alive for share submissions until those jobs expire)
status->need_restart = true;
} else if (0 == strcmp(key, "stratum_fingerprint_miners")) {
bool val_bool;
if (!datum_str_to_bool_strict(val, &val_bool)) {
json_array_append_new(errors, json_string_nocheck("\"Fingerprint and workaround known miner bugs\" must be 0 or 1"));
return false;
}
if (val_bool == datum_config.stratum_v1_fingerprint_miners) return true;
datum_config.stratum_v1_fingerprint_miners = val_bool;
datum_api_json_modify_new("stratum", "fingerprint_miners", json_boolean(val_bool));
// TODO: apply change to connected miners?
} else if (0 == strcmp(key, "datum_always_pay_self")) {
bool val_bool;
if (!datum_str_to_bool_strict(val, &val_bool)) {
json_array_append_new(errors, json_string_nocheck("\"Always pay self\" must be 0 or 1"));
return false;
}
if (val_bool == datum_config.datum_always_pay_self) return true;
datum_config.datum_always_pay_self = val_bool;
datum_api_json_modify_new("datum", "always_pay_self", json_boolean(val_bool));
} else if (0 == strcmp(key, "bitcoind_work_update_seconds")) {
const int val_int = datum_atoi_strict(val, strlen(val));
if (val_int == datum_config.bitcoind_work_update_seconds) return true;
if (val_int > 120 || val_int < 5) {
json_array_append_new(errors, json_string_nocheck("bitcoind work update interval must be between 5 and 120"));
return false;
}
datum_config.bitcoind_work_update_seconds = val_int;
datum_api_json_modify_new("bitcoind", "work_update_seconds", json_integer(val_int));
if (datum_config.bitcoind_work_update_seconds >= datum_config.datum_protocol_global_timeout - 5) {
datum_config.datum_protocol_global_timeout = val_int + 5;
datum_api_json_modify_new("datum", "protocol_global_timeout", json_integer(val_int + 5));
}
// TODO: apply change without restarting (and don't interfere with existing jobs)
status->need_restart = true;
} else if (0 == strcmp(key, "bitcoind_rpcurl")) {
if (0 == strcmp(val, datum_config.bitcoind_rpcurl)) return true;
if (strlen(val) > 128) {
json_array_append_new(errors, json_string_nocheck("bitcoind RPC URL is too long"));
return false;
}
strcpy(datum_config.bitcoind_rpcurl, val);
datum_api_json_modify_new("bitcoind", "rpcurl", json_string(val));
} else if (0 == strcmp(key, "bitcoind_rpcuser")) {
if (0 == strcmp(val, datum_config.bitcoind_rpcuser)) return true;
if (strlen(val) > 128) {
json_array_append_new(errors, json_string_nocheck("bitcoind RPC user is too long"));
return false;
}
strcpy(datum_config.bitcoind_rpcuser, val);
datum_api_json_modify_new("bitcoind", "rpcuser", json_string(val));
update_rpc_auth(&datum_config);
} else if (0 == strcmp(key, "bitcoind_rpcpassword")) {
if (0 == strcmp(val, datum_config.bitcoind_rpcpassword)) return true;
if (!val[0]) return true; // no password change
if (strlen(val) > 128) {
json_array_append_new(errors, json_string_nocheck("bitcoind RPC password is too long"));
return false;
}
strcpy(datum_config.bitcoind_rpcpassword, val);
datum_api_json_modify_new("bitcoind", "rpcpassword", json_string(val));
update_rpc_auth(&datum_config);
} else {
char err[0x100];
snprintf(err, sizeof(err), "Unknown setting '%s'", key);
json_array_append_new(errors, json_string_nocheck(err));
DLOG_ERROR("%s: '%s' not implemented", __func__, key);
return false;
}
status->modified_config = true;
return true;
}
static const char datum_api_config_errors_fmt[] = "<div class='err'>%s</div>";
size_t datum_api_fill_config_errors(const char *var_start, const size_t var_name_len, char * const replacement, const size_t replacement_max_len, const T_DATUM_API_DASH_VARS * const vardata) {
const json_t * const errors = (void*)vardata;
size_t index, sz = 0;
json_t *j_it;
json_array_foreach(errors, index, j_it) {
sz += snprintf(&replacement[sz], replacement_max_len, datum_api_config_errors_fmt, json_string_value(j_it));
}
return sz;
}
void *datum_restart_thread(void *ptr) {
// Give logger some time
usleep(500000);
// Wait for the response to actually get delivered
// FIXME: css/svg/etc might fail (we don't support caching them yet)
struct MHD_Daemon * const mhd = ptr;
MHD_quiesce_daemon(mhd);
while (MHD_get_daemon_info(mhd, MHD_DAEMON_INFO_CURRENT_CONNECTIONS)->num_connections > 0) {
usleep(100);
}
MHD_stop_daemon(mhd);
datum_reexec();
abort(); // impossible to get here
}
int datum_api_config_post(struct MHD_Connection * const connection, char * const post, const int len) {
struct MHD_Response *response;
int ret;
const char *key;
json_t *j_it;
if (!datum_config.api_modify_conf) {
return datum_api_do_error(connection, MHD_HTTP_FORBIDDEN);
}
json_t * const j = json_object();
if (!datum_api_formdata_to_json(connection, post, len, j)) {
json_decref(j);
return datum_api_do_error(connection, MHD_HTTP_INTERNAL_SERVER_ERROR);
}
if (!datum_api_check_admin_password(connection, j)) {
json_decref(j);
return MHD_YES;
}
json_object_del(j, "csrf");
json_object_del(j, "password");
{
// Unchecked checkboxes are simply omitted, so a hidden field is used to convey them
const json_t * const j_checkboxes = json_object_get(j, "checkboxes");
const char * const checkboxes = json_string_value(j_checkboxes);
const size_t checkboxes_len = json_string_length(j_checkboxes);
const char *p = checkboxes;
char buf[0x100];
while (p[0] != '\0') {
const char *p2 = strchr(p, ' ');
if (!p2) p2 = &checkboxes[checkboxes_len];
const size_t i_len = p2 - p;
if (i_len < sizeof(buf)) {
memcpy(buf, p, i_len);
buf[i_len] = '\0';
json_t * const j_cb = json_object_get(j, buf);
if ((!j_cb) || json_is_null(j_cb)) {
json_object_set_new_nocheck(j, buf, json_string_nocheck("0"));
}
}
p = *p2 ? &p2[1] : p2;
}
json_object_del(j, "checkboxes");
}
json_t * const errors = json_array();
struct datum_api_config_set_status status = {
.errors = errors,
};
json_object_foreach(j, key, j_it) {
datum_api_config_set(key, json_string_value(j_it), &status);
}
json_decref(j);
if (status.modified_config) {
if (!datum_api_json_write()) {
if (status.need_restart) {
json_array_append_new(errors, json_string_nocheck("Error writing new config file (changes will be lost)"));
} else {
json_array_append_new(errors, json_string_nocheck("Error writing new config file (changes will be lost at restart)"));
}
}
}
if (json_array_size(errors) > 0) {
if (status.need_restart) {
json_array_insert_new(errors, 0, json_string_nocheck("NOTE: Other changes require a gateway restart. Please wait a few seconds before trying again."));
}
size_t index, max_sz;
max_sz = www_config_errors_html_sz;
json_array_foreach(errors, index, j_it) {
max_sz += json_string_length(j_it) + sizeof(datum_api_config_errors_fmt);
}
char * const output = malloc(max_sz);
if (!output) {
return MHD_NO;
}
const size_t sz = datum_api_fill_vars(www_config_errors_html, output, max_sz, datum_api_fill_config_errors, (void*)errors);
response = MHD_create_response_from_buffer(sz, output, MHD_RESPMEM_MUST_FREE);
MHD_add_response_header(response, "Content-Type", "text/html");
http_resp_prevent_caching(response);
} else if (status.need_restart) {
response = MHD_create_response_from_buffer(www_config_restart_html_sz, (void*)www_config_restart_html, MHD_RESPMEM_PERSISTENT);
MHD_add_response_header(response, "Content-Type", "text/html");
http_resp_prevent_caching(response);
} else {
response = MHD_create_response_from_buffer(0, "", MHD_RESPMEM_PERSISTENT);
http_resp_prevent_caching(response);
MHD_add_response_header(response, "Location", "/config");
}
json_decref(errors);
ret = MHD_queue_response(connection, MHD_HTTP_FOUND, response);
MHD_destroy_response(response);
if (status.need_restart) {
DLOG_INFO("Config change requires restarting gateway, proceeding");
struct MHD_Daemon * const mhd = MHD_get_connection_info(connection, MHD_CONNECTION_INFO_DAEMON)->daemon;
pthread_t pthread_datum_restart_thread;
pthread_create(&pthread_datum_restart_thread, NULL, datum_restart_thread, mhd);
}
return ret;
}
int datum_api_homepage(struct MHD_Connection *connection) { int datum_api_homepage(struct MHD_Connection *connection) {
struct MHD_Response *response; struct MHD_Response *response;
char output[DATUM_API_HOMEPAGE_MAX_SIZE]; char output[DATUM_API_HOMEPAGE_MAX_SIZE];
@ -1088,6 +1649,13 @@ enum MHD_Result datum_api_answer(void *cls, struct MHD_Connection *connection, c
if (!strcmp(url, "/coinbaser")) { if (!strcmp(url, "/coinbaser")) {
return datum_api_coinbaser(connection); return datum_api_coinbaser(connection);
} }
if (!strcmp(url, "/config")) {
if (int_method == 2 && con_info) {
return datum_api_config_post(connection, con_info->data, con_info->data_size);
} else {
return datum_api_config_dashboard(connection);
}
}
if ((int_method==2) && (!strcmp(url, "/cmd"))) { if ((int_method==2) && (!strcmp(url, "/cmd"))) {
if (con_info) { if (con_info) {
return datum_api_cmd(connection, con_info->data, con_info->data_size); return datum_api_cmd(connection, con_info->data, con_info->data_size);

11
src/datum_blocktemplates.c
View File

@ -404,8 +404,15 @@ void *datum_gateway_template_thread(void *args) {
{ {
unsigned char dummy[64]; unsigned char dummy[64];
if (!addr_2_output_script(datum_config.mining_pool_address, &dummy[0], 64)) { if (!addr_2_output_script(datum_config.mining_pool_address, &dummy[0], 64)) {
DLOG_FATAL("Could not generate output script for pool addr! Perhaps invalid? This is bad."); if (datum_config.api_modify_conf) {
panic_from_thread(__LINE__); DLOG_ERROR("Could not generate output script for pool addr! Perhaps invalid? Configure via API/dashboard.");
} else {
DLOG_FATAL("Could not generate output script for pool addr! Perhaps invalid? This is bad.");
panic_from_thread(__LINE__);
}
}
while (!addr_2_output_script(datum_config.mining_pool_address, &dummy[0], 64)) {
usleep(50000);
} }
} }

6
src/datum_conf.c
View File

@ -111,6 +111,8 @@ const T_DATUM_CONFIG_ITEM datum_config_options[] = {
.required = false, .ptr = datum_config.api_admin_password, .default_string[0] = "", .max_string_len = sizeof(datum_config.api_admin_password) }, .required = false, .ptr = datum_config.api_admin_password, .default_string[0] = "", .max_string_len = sizeof(datum_config.api_admin_password) },
{ .var_type = DATUM_CONF_INT, .category = "api", .name = "listen_port", .description = "Port to listen for API/dashboard requests (0=disabled)", { .var_type = DATUM_CONF_INT, .category = "api", .name = "listen_port", .description = "Port to listen for API/dashboard requests (0=disabled)",
.required = false, .ptr = &datum_config.api_listen_port, .default_int = 0 }, .required = false, .ptr = &datum_config.api_listen_port, .default_int = 0 },
{ .var_type = DATUM_CONF_BOOL, .category = "api", .name = "modify_conf", .description = "Enable modifying the config file from API/dashboard",
.required = false, .ptr = &datum_config.api_modify_conf, .default_int = 0 },
// extra block submissions list // extra block submissions list
{ .var_type = DATUM_CONF_STRING_ARRAY, .category = "extra_block_submissions", .name = "urls", .description = "Array of bitcoind RPC URLs to submit our blocks to directly. Include auth info: http://user:pass@IP", { .var_type = DATUM_CONF_STRING_ARRAY, .category = "extra_block_submissions", .name = "urls", .description = "Array of bitcoind RPC URLs to submit our blocks to directly. Include auth info: http://user:pass@IP",
@ -322,7 +324,9 @@ int datum_read_config(const char *conffile) {
} }
} }
if (config) { if (datum_config.api_modify_conf) {
datum_config.config_json = config;
} else {
json_decref(config); json_decref(config);
} }

4
src/datum_conf.h
View File

@ -43,6 +43,8 @@
#include <stdbool.h> #include <stdbool.h>
#include <stdint.h> #include <stdint.h>
#include <jansson.h>
#define DATUM_CONF_BOOL 1 #define DATUM_CONF_BOOL 1
#define DATUM_CONF_INT 2 #define DATUM_CONF_INT 2
#define DATUM_CONF_STRING 3 #define DATUM_CONF_STRING 3
@ -107,6 +109,8 @@ typedef struct {
size_t api_admin_password_len; size_t api_admin_password_len;
char api_csrf_token[65]; char api_csrf_token[65];
int api_listen_port; int api_listen_port;
bool api_modify_conf;
json_t *config_json;
int extra_block_submissions_count; int extra_block_submissions_count;
char extra_block_submissions_urls[DATUM_MAX_BLOCK_SUBMITS][DATUM_MAX_SUBMIT_URL_LEN]; char extra_block_submissions_urls[DATUM_MAX_BLOCK_SUBMITS][DATUM_MAX_SUBMIT_URL_LEN];

8
src/datum_jsonrpc.c
View File

@ -250,6 +250,14 @@ bool update_rpc_cookie(global_config_t * const cfg) {
return true; return true;
} }
void update_rpc_auth(global_config_t * const cfg) {
if (datum_config.bitcoind_rpccookiefile[0] && !cfg->bitcoind_rpcuser[0]) {
update_rpc_cookie(cfg);
} else {
snprintf(datum_config.bitcoind_rpcuserpass, sizeof(datum_config.bitcoind_rpcuserpass), "%s:%s", datum_config.bitcoind_rpcuser, datum_config.bitcoind_rpcpassword);
}
}
json_t *bitcoind_json_rpc_call(CURL * const curl, global_config_t * const cfg, const char * const rpc_req) { json_t *bitcoind_json_rpc_call(CURL * const curl, global_config_t * const cfg, const char * const rpc_req) {
long http_resp_code = -1; long http_resp_code = -1;
json_t *j = json_rpc_call_full(curl, cfg->bitcoind_rpcurl, cfg->bitcoind_rpcuserpass, rpc_req, NULL, &http_resp_code); json_t *j = json_rpc_call_full(curl, cfg->bitcoind_rpcurl, cfg->bitcoind_rpcuserpass, rpc_req, NULL, &http_resp_code);

1
src/datum_jsonrpc.h
View File

@ -66,6 +66,7 @@ struct upload_buffer {
json_t *json_rpc_call(CURL *curl, const char *url, const char *userpass, const char *rpc_req); json_t *json_rpc_call(CURL *curl, const char *url, const char *userpass, const char *rpc_req);
char *basic_http_call(CURL *curl, const char *url); char *basic_http_call(CURL *curl, const char *url);
bool update_rpc_cookie(global_config_t *cfg); bool update_rpc_cookie(global_config_t *cfg);
void update_rpc_auth(global_config_t *cfg);
json_t *bitcoind_json_rpc_call(CURL *curl, global_config_t *cfg, const char *rpc_req); json_t *bitcoind_json_rpc_call(CURL *curl, global_config_t *cfg, const char *rpc_req);
#endif #endif

1
src/datum_utils.c
View File

@ -51,6 +51,7 @@
#include <stdint.h> #include <stdint.h>
#include <sys/time.h> #include <sys/time.h>
#include <inttypes.h> #include <inttypes.h>
#include <unistd.h>
#include "datum_gateway.h" #include "datum_gateway.h"
#include "datum_logger.h" #include "datum_logger.h"

1
www/clients_top.html
View File

@ -14,6 +14,7 @@
</div> </div>
<div class="menu-container"> <div class="menu-container">
<a href="/">Status</a> <a href="/">Status</a>
<a href="/config">Config</a>
<a href="/clients" style="background-color: darkslategrey;">Clients</a> <a href="/clients" style="background-color: darkslategrey;">Clients</a>
<a href="/threads">Threads</a> <a href="/threads">Threads</a>
<a href="/coinbaser">Coinbaser</a> <a href="/coinbaser">Coinbaser</a>

1
www/coinbaser_top.html
View File

@ -31,6 +31,7 @@
</div> </div>
<div class="menu-container"> <div class="menu-container">
<a href="/">Status</a> <a href="/">Status</a>
<a href="/config">Config</a>
<a href="/clients">Clients</a> <a href="/clients">Clients</a>
<a href="/threads">Threads</a> <a href="/threads">Threads</a>
<a href="/coinbaser" style="background-color: darkslategrey;">Coinbaser</a> <a href="/coinbaser" style="background-color: darkslategrey;">Coinbaser</a>

224
www/config.html Normal file
View File

@ -0,0 +1,224 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>DATUM Gateway Configuration</title>
<link rel="icon" type="image/x-icon" href="/assets/icons/favicon.ico">
<link rel="stylesheet" type="text/css" href="./assets/style.css">
<style type="text/css">
.table-wrapper {
justify-content: center;
}
.table-container {
max-width: 800px;
}
button {
background-color: #444;
color: #3498db;
padding: 10px 20px;
margin: 5px;
border-radius: 5px;
text-decoration: none;
transition: background-color 0.3s, color 0.3s;
font-weight: bold;
font-size: large;
}
button[disabled] {
color: #777;
background-color: #400;
}
.setting-row {
border-bottom: 1px solid #444;
}
.setting-row:last-child {
border-bottom: none;
}
.flex-row {
display: flex;
flex-direction: row;
}
label.label {
padding: 10px;
background-color: #2a2a3b;
white-space: nowrap;
}
.flex-row input:not([type=checkbox]) {
flex: 1;
}
.flex-row input[type=checkbox] {
zoom: 2;
}
input,select {
color: white;
background-color: black;
z-index: 1;
padding: 0 10px;
}
input[readonly],input[disabled],select[readonly] {
color: grey;
}
label.tip {
display: block;
padding-left: 10px;
padding-right: 10px;
padding-top: 1px;
padding-bottom: 10px;
background-color: #2a2a3b;
font-size: 80%;
font-style: italic;
}
</style>
</head>
<body>
<div class="container">
<div class="header">
<h1><img src="/assets/icons/datum_logo.svg" alt="(DATUM Logo)" style="vertical-align: text-top" width="28" height="33"> DATUM <span>GATEWAY</span></h1>
</div>
<div class="menu-container">
<a href="/">Status</a>
<a href="/config" style="background-color: darkslategrey;">Config</a>
<a href="/clients">Clients</a>
<a href="/threads">Threads</a>
<a href="/coinbaser">Coinbaser</a>
</div>
</div>
<form action='/config' method='post'>
<input type='hidden' name='csrf' value='${*CSRF_TOKEN}' />
<div class="tables-container">
<div style="margin-top: 20px; text-align: center;">
<button${disabled:*ro}>Save</button>
${msg:*ro}
</div>
<div class="table-wrapper">
<div class="table-container">
<h2>Basic</h2>
<div class="setting-row">
<div class="flex-row">
<label for="mining_pool_address" class="label">Bitcoin Address:</label>
<input maxlength="100" name="mining_pool_address" id="mining_pool_address" value="${mining_pool_address}"${*ro}></input>
</div>
<label for="mining_pool_address" class="tip">Mining rewards will be received by this Bitcoin address, by default.</label>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="username_behaviour" class="label">Send Miner Usernames To Pool:</label>
<select name="username_behaviour" id="username_behaviour"${*ro}>
<option value="datum_pool_pass_full_users"${selected:datum_pool_pass_full_users}${disabled:*ro}>Override Bitcoin Address</option>
<option value="datum_pool_pass_workers"${selected:*datum_pool_pass_workers}${disabled:*ro}>Send as worker names</option>
<option value="private"${selected:*username_behaviour_private}${disabled:*ro}>Keep private</option>
</select>
</div>
<label for="username_behaviour" class="tip">The username configured in miners can be handled a few different ways.</label>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="mining_coinbase_tag_secondary" class="label">Coinbase Tag:</label>
<input maxlength="${*mining_coinbase_tag_secondary_max}" name="mining_coinbase_tag_secondary" id="mining_coinbase_tag_secondary" value="${mining_coinbase_tag_secondary}"${*ro}></input>
</div>
<label for="coinbase_tag_secondary" id="coinbase_tag_secondary" class="tip">Arbitrary name displayed as the block creator on block explorers.</label>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="mining_coinbase_unique_id" class="label">Unique Gateway ID:</label>
<input maxlength="5" name="mining_coinbase_unique_id" id="mining_coinbase_unique_id" value="${mining_coinbase_unique_id}"${*ro}></input>
</div>
<label for="mining_coinbase_unique_id" class="tip">A number between 1 and 65535 that must be unique per Coinbase Tag.</label>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="reward_sharing" class="label">Collaborative reward sharing (pooled mining):</label>
<select name="reward_sharing" id="reward_sharing"${*ro}>
<option value="require"${selected:datum_pooled_mining_only}${disabled:*ro}>require (pooled mining only)</option>
<option value="prefer"${selected:*reward_sharing_prefer}${disabled:*ro}>prefer (failover to non-pooled)</option>
<option value="never"${selected:*reward_sharing_never}${disabled:*ro}>never (non-pooled only)</option>
</select>
</div>
<label for="reward_sharing" class="tip">You can share rewards and share in others' rewards - or only get rewarded when you find a block yourself.</label>
</div>
</div>
</div>
<div class="table-wrapper">
<div class="table-container">
<h2>Pool</h2>
<div class="setting-row">
<div class="flex-row">
<label for="datum_pool_host" class="label">Host:</label>
<input maxlength="1023" name="datum_pool_host" id="datum_pool_host" value="${*datum_pool_host}"${*ro}></input>
</div>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="datum_pool_port" class="label">Port:</label>
<input maxlength="5" name="datum_pool_port" id="datum_pool_port" value="${datum_pool_port}"${*ro}></input>
</div>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="datum_pool_pubkey" class="label">Pubkey:</label>
<input maxlength="1023" name="datum_pool_pubkey" id="datum_pool_pubkey" value="${datum_pool_pubkey}"${*ro}></input>
</div>
</div>
</div>
</div>
<div class="table-wrapper">
<div class="table-container">
<h2>Advanced</h2>
<input type="hidden" name="checkboxes" value="stratum_fingerprint_miners datum_always_pay_self"></input>
<div class="setting-row">
<div class="flex-row">
<input type="checkbox" name="stratum_fingerprint_miners" id="stratum_fingerprint_miners" value="1"${checked:stratum_fingerprint_miners}${disabled:*ro}></input>
<label for="stratum_fingerprint_miners" class="label" style="flex:1">Fingerprint and workaround known miner bugs</label>
</div>
</div>
<div class="setting-row">
<div class="flex-row">
<input type="checkbox" name="datum_always_pay_self" id="datum_always_pay_self" value="1"${checked:datum_always_pay_self}${disabled:*ro}></input>
<label for="datum_always_pay_self" class="label" style="flex:1">Always include your own "Bitcoin Address" above in generated payouts if possible</label>
</div>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="bitcoind_work_update_seconds" class="label">Typical interval between job updates:</label>
<input maxlength="3" name="bitcoind_work_update_seconds" id="bitcoind_work_update_seconds" value="${bitcoind_work_update_seconds}"${*ro}></input>
</div>
<label for="bitcoind_work_update_seconds" class="tip">5-120 seconds. 40 suggested.</label>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="bitcoind_rpcurl" class="label">bitcoind RPC URL:</label>
<input maxlength="128" name="bitcoind_rpcurl" id="bitcoind_rpcurl" value="${bitcoind_rpcurl}"${*ro}></input>
</div>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="bitcoind_rpcuser" class="label">bitcoind RPC username:</label>
<input maxlength="128" name="bitcoind_rpcuser" id="bitcoind_rpcuser" value="${bitcoind_rpcuser}"${*ro}></input>
</div>
</div>
<div class="setting-row">
<div class="flex-row">
<label for="bitcoind_rpcpassword" class="label">bitcoind RPC password:</label>
<input maxlength="128" name="bitcoind_rpcpassword" id="bitcoind_rpcpassword" placeholder="****************" type="password"${*ro}></input>
</div>
</div>
</div>
</div>
<div style="margin-bottom: 20px; text-align: center;">
<button${disabled:*ro}>Save</button>
${msg:*ro}
</div>
</div>
</form>
</body>
</html>

72
www/config_errors.html Normal file
View File

@ -0,0 +1,72 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>DATUM Gateway Configuration - ERROR</title>
<link rel="icon" type="image/x-icon" href="/assets/icons/favicon.ico">
<link rel="stylesheet" type="text/css" href="./assets/style.css">
<style type="text/css">
.table-wrapper {
justify-content: center;
}
.table-container {
max-width: 800px;
}
button {
background-color: #444;
color: #3498db;
padding: 10px 20px;
margin: 5px;
border-radius: 5px;
text-decoration: none;
transition: background-color 0.3s, color 0.3s;
font-weight: bold;
font-size: large;
}
.err {
border-bottom: 1px solid #444;
padding: 10px;
background-color: #2a2a3b;
white-space: nowrap;
}
.err:last-child {
border-bottom: none;
}
</style>
</head>
<body>
<div class="container">
<div class="header">
<h1><img src="/assets/icons/datum_logo.svg" alt="(DATUM Logo)" style="vertical-align: text-top" width="28" height="33"> DATUM <span>GATEWAY</span></h1>
</div>
<div class="menu-container">
<a href="/">Status</a>
<a href="/config" style="background-color: darkslategrey;">Config</a>
<a href="/clients">Clients</a>
<a href="/threads">Threads</a>
<a href="/coinbaser">Coinbaser</a>
</div>
</div>
<div class="tables-container">
<script>
document.write('<div style="margin-top: 20px; text-align: center;"><button onclick="javascript:history.back(); return false;">Go Back</button></div>')
</script>
<div class="table-wrapper">
<div class="table-container">
<h2>Errors Occurred</h2>
${*errors}
</div>
</div>
<script>
document.write('<div style="margin-bottom: 20px; text-align: center;"><button onclick="javascript:history.back(); return false;">Go Back</button></div>')
</script>
</div>
</body>
</html>

74
www/config_restart.html Normal file
View File

@ -0,0 +1,74 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>DATUM Gateway Configuration - Restarting</title>
<link rel="icon" type="image/x-icon" href="/assets/icons/favicon.ico">
<link rel="stylesheet" type="text/css" href="./assets/style.css">
<style type="text/css">
.table-wrapper {
justify-content: center;
}
.table-container {
max-width: 800px;
}
button {
background-color: #444;
color: #3498db;
padding: 10px 20px;
margin: 5px;
border-radius: 5px;
text-decoration: none;
transition: background-color 0.3s, color 0.3s;
font-weight: bold;
font-size: large;
}
.notice {
padding: 10px;
background-color: #2a2a3b;
white-space: nowrap;
}
</style>
</head>
<body>
<div class="container">
<div class="header">
<h1><img src="/assets/icons/datum_logo.svg" alt="(DATUM Logo)" style="vertical-align: text-top" width="28" height="33"> DATUM <span>GATEWAY</span></h1>
</div>
<div class="menu-container">
<a href="/">Status</a>
<a href="/config" style="background-color: darkslategrey;">Config</a>
<a href="/clients">Clients</a>
<a href="/threads">Threads</a>
<a href="/coinbaser">Coinbaser</a>
</div>
</div>
<form action='/config' method='get' name="continue_form">
<div class="tables-container">
<div style="margin-top: 20px; text-align: center;">
<button>Continue</button>
</div>
<div class="table-wrapper">
<div class="table-container">
<h2>Changes Successful</h2>
<div class="notice">
DATUM Gateway is restarting... Please wait a few seconds before continuing.
</div>
</div>
</div>
<div style="margin-bottom: 20px; text-align: center;">
<button>Continue</button>
</div>
</div>
</form>
<script>
setTimeout(function() { document.continue_form.submit(); }, 10000);
</script>
</body>
</html>

1
www/home.html
View File

@ -35,6 +35,7 @@
</div> </div>
<div class="menu-container"> <div class="menu-container">
<a href="/" style="background-color: darkslategrey;">Status</a> <a href="/" style="background-color: darkslategrey;">Status</a>
<a href="/config">Config</a>
<a href="/clients">Clients</a> <a href="/clients">Clients</a>
<a href="/threads">Threads</a> <a href="/threads">Threads</a>
<a href="/coinbaser">Coinbaser</a> <a href="/coinbaser">Coinbaser</a>

1
www/threads_top.html
View File

@ -31,6 +31,7 @@
</div> </div>
<div class="menu-container"> <div class="menu-container">
<a href="/">Status</a> <a href="/">Status</a>
<a href="/config">Config</a>
<a href="/clients">Clients</a> <a href="/clients">Clients</a>
<a href="/threads" style="background-color: darkslategrey;">Threads</a> <a href="/threads" style="background-color: darkslategrey;">Threads</a>
<a href="/coinbaser">Coinbaser</a> <a href="/coinbaser">Coinbaser</a>