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client-connection-http.c
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client-connection-http.c
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/* Copyright (c) 2010-2016 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "compat.h"
#include "lib-signals.h"
#include "base64.h"
#include "ioloop.h"
#include "str.h"
#include "istream.h"
#include "ostream.h"
#include "strescape.h"
#include "settings-parser.h"
#include "iostream-ssl.h"
#include "iostream-temp.h"
#include "istream-seekable.h"
#include "master-service.h"
#include "master-service-ssl.h"
#include "master-service-settings.h"
#include "mail-storage-service.h"
#include "http-server.h"
#include "http-request.h"
#include "http-response.h"
#include "http-url.h"
#include "doveadm-util.h"
#include "doveadm-server.h"
#include "doveadm-mail.h"
#include "doveadm-print.h"
#include "doveadm-settings.h"
#include "client-connection-private.h"
#include "json-parser.h"
#include <unistd.h>
#include <ctype.h>
struct client_connection_http {
struct client_connection client;
struct http_server_connection *http_client;
struct http_server_request *http_server_request;
const struct http_request *http_request;
struct http_server_response *http_response;
struct json_parser *json_parser;
const struct doveadm_cmd_ver2 *cmd;
struct doveadm_cmd_param *cmd_param;
struct ioloop *ioloop;
ARRAY_TYPE(doveadm_cmd_param_arr_t) pargv;
int method_err;
char *method_id;
bool first_row;
bool value_is_array;
enum {
JSON_STATE_INIT,
JSON_STATE_COMMAND,
JSON_STATE_COMMAND_NAME,
JSON_STATE_COMMAND_PARAMETERS,
JSON_STATE_COMMAND_PARAMETER_KEY,
JSON_STATE_COMMAND_PARAMETER_VALUE,
JSON_STATE_COMMAND_PARAMETER_VALUE_ARRAY,
JSON_STATE_COMMAND_PARAMETER_VALUE_ISTREAM_CONSUME,
JSON_STATE_COMMAND_ID,
JSON_STATE_COMMAND_DONE,
JSON_STATE_DONE
} json_state;
};
typedef void doveadm_server_handler_t(struct client_connection_http *ctx);
struct doveadm_http_server_mount {
const char *verb;
const char *path;
doveadm_server_handler_t *handler;
bool auth;
};
static struct http_server *doveadm_http_server;
static void doveadm_http_server_handle_request(void *context, struct http_server_request *req);
static void doveadm_http_server_connection_destroy(void *context, const char *reason);
static const struct http_server_callbacks doveadm_http_callbacks = {
.connection_destroy = doveadm_http_server_connection_destroy,
.handle_request = doveadm_http_server_handle_request
};
static void doveadm_http_server_options_handler(struct client_connection_http *);
static void doveadm_http_server_print_mounts(struct client_connection_http *);
static void doveadm_http_server_send_api_v1(struct client_connection_http *);
static void doveadm_http_server_read_request_v1(struct client_connection_http *);
static struct doveadm_http_server_mount doveadm_http_server_mounts[] = {
{ .verb = "OPTIONS", .path = NULL, .handler = doveadm_http_server_options_handler, .auth = FALSE },
{ .verb = "GET", .path = "/", .handler = doveadm_http_server_print_mounts, .auth = TRUE },
{ .verb = "GET", .path = "/doveadm/v1", .handler = doveadm_http_server_send_api_v1, .auth = TRUE },
{ .verb = "POST", .path = "/doveadm/v1", .handler = doveadm_http_server_read_request_v1, .auth = TRUE }
};
static void doveadm_http_server_send_response(void *context);
struct client_connection *
client_connection_create_http(int fd, bool ssl)
{
struct client_connection_http *conn;
pool_t pool;
pool = pool_alloconly_create("doveadm client", 1024*16);
conn = p_new(pool, struct client_connection_http, 1);
conn->client.pool = pool;
if (client_connection_init(&conn->client, fd) < 0)
return NULL;
conn->http_client = http_server_connection_create(doveadm_http_server,
fd, fd, ssl, &doveadm_http_callbacks, conn);
conn->client.fd = -1;
return &conn->client;
}
static void
doveadm_http_server_connection_destroy(void *context, const char *reason ATTR_UNUSED)
{
struct client_connection *conn = context;
client_connection_destroy(&conn);
}
static void
doveadm_http_server_request_destroy(void *context)
{
struct client_connection_http *conn = context;
struct http_server_response *resp =
http_server_request_get_response(conn->http_server_request);
if (resp != NULL) {
const char *agent;
const char *url;
int status;
const char *reason;
uoff_t size;
http_server_response_get_status(resp, &status, &reason);
size = http_server_response_get_total_size(resp);
agent = http_request_header_get(conn->http_request, "User-Agent");
if (agent == NULL) agent = "";
url = http_url_create(conn->http_request->target.url);
i_info("doveadm: %s %s %s \"%s %s HTTP/%d.%d\" %d %"PRIuUOFF_T" \"%s\" \"%s\"",
net_ip2addr(&conn->client.remote_ip), "-", "-",
conn->http_request->method,
conn->http_request->target.url->path,
conn->http_request->version_major, conn->http_request->version_minor,
status, size,
url,
agent);
}
if (conn->json_parser != NULL) {
const char *error ATTR_UNUSED;
(void)json_parser_deinit(&conn->json_parser, &error);
// we've already failed, ignore error
}
if (conn->client.output != NULL)
o_stream_set_no_error_handling(conn->client.output, TRUE);
http_server_request_unref(&(conn->http_server_request));
http_server_switch_ioloop(doveadm_http_server);
http_server_connection_unref(&(conn->http_client));
}
static void doveadm_http_server_json_error(void *context, const char *error)
{
struct client_connection_http *conn = context;
string_t *escaped;
o_stream_nsend_str(conn->client.output,"[\"error\",{\"type\":\"");
escaped = str_new(conn->client.pool, 10);
json_append_escaped(escaped, error);
o_stream_nsend_str(conn->client.output,str_c(escaped));
o_stream_nsend_str(conn->client.output,"\", \"exitCode\":");
str_truncate(escaped,0);
str_printfa(escaped,"%d", doveadm_exit_code);
o_stream_nsend_str(conn->client.output, str_c(escaped));
o_stream_nsend_str(conn->client.output,"},\"");
str_truncate(escaped,0);
if (conn->method_id != NULL) {
json_append_escaped(escaped, conn->method_id);
o_stream_nsend_str(conn->client.output, str_c(escaped));
}
o_stream_nsend_str(conn->client.output,"\"]");
}
static void doveadm_http_server_json_success(void *context, struct istream *result)
{
struct client_connection_http *conn = context;
string_t *escaped;
escaped = str_new(conn->client.pool, 10);
o_stream_nsend_str(conn->client.output,"[\"doveadmResponse\",");
if (o_stream_send_istream(conn->client.output, result) < 0) {
if (conn->client.output->stream_errno != 0) {
i_fatal("write(%s) failed: %s", o_stream_get_name(conn->client.output), o_stream_get_error(conn->client.output));
} else if (result->stream_errno != 0) {
i_fatal("read(%s) failed: %s", i_stream_get_name(result), i_stream_get_error(result));
} else i_unreached(); /* either it's output or input error */
}
o_stream_nsend_str(conn->client.output,",\"");
if (conn->method_id != NULL) {
json_append_escaped(escaped, conn->method_id);
o_stream_nsend_str(conn->client.output, str_c(escaped));
}
o_stream_nsend_str(conn->client.output,"\"]");
}
static int doveadm_http_server_istream_read(struct client_connection_http *conn)
{
const unsigned char *data;
size_t size;
while (i_stream_read_more(conn->cmd_param->value.v_istream, &data, &size) > 0)
i_stream_skip(conn->cmd_param->value.v_istream, size);
if (!conn->cmd_param->value.v_istream->eof)
return 0;
if (conn->cmd_param->value.v_istream->stream_errno != 0) {
i_error("read(%s) failed: %s",
i_stream_get_name(conn->cmd_param->value.v_istream),
i_stream_get_error(conn->cmd_param->value.v_istream));
conn->method_err = 400;
return -1;
}
return 1;
}
/**
* this is to ensure we can handle arrays and other special parameter types
*/
static int doveadm_http_server_json_parse_next(struct client_connection_http *conn, enum json_type *type, const char **value)
{
int rc;
const char *tmp;
if (conn->json_state == JSON_STATE_COMMAND_PARAMETER_VALUE_ISTREAM_CONSUME) {
rc = doveadm_http_server_istream_read(conn);
if (rc != 1) return rc;
conn->json_state = JSON_STATE_COMMAND_PARAMETER_KEY;
} else if (conn->json_state == JSON_STATE_COMMAND_PARAMETER_VALUE_ARRAY) {
/* reading through parameters in an array */
while ((rc = json_parse_next(conn->json_parser, type, value)) > 0) {
if (*type == JSON_TYPE_ARRAY_END)
break;
if (*type != JSON_TYPE_STRING)
return -2;
tmp = p_strdup(conn->client.pool,*value);
array_append(&conn->cmd_param->value.v_array, &tmp, 1);
}
if (rc <= 0)
return rc;
conn->json_state = JSON_STATE_COMMAND_PARAMETER_KEY;
} else if (conn->json_state == JSON_STATE_COMMAND_PARAMETER_VALUE) {
if (conn->cmd_param->type == CMD_PARAM_ISTREAM) {
struct istream* is[2] = {0};
rc = json_parse_next_stream(conn->json_parser, &is[0]);
if (rc != 1) return rc;
conn->cmd_param->value.v_istream = i_stream_create_seekable_path(is, IO_BLOCK_SIZE, "/tmp/doveadm.");
i_stream_unref(&is[0]);
conn->cmd_param->value_set = TRUE;
conn->json_state = JSON_STATE_COMMAND_PARAMETER_VALUE_ISTREAM_CONSUME;
return doveadm_http_server_json_parse_next(conn, type, value);
}
rc = json_parse_next(conn->json_parser, type, value);
if (rc != 1) return rc;
if (conn->cmd_param->type == CMD_PARAM_ARRAY) {
p_array_init(&conn->cmd_param->value.v_array, conn->client.pool, 1);
conn->cmd_param->value_set = TRUE;
if (*type == JSON_TYPE_ARRAY) {
/* start of array */
conn->value_is_array = TRUE;
conn->json_state = JSON_STATE_COMMAND_PARAMETER_VALUE_ARRAY;
return doveadm_http_server_json_parse_next(conn, type, value);
}
if (*type != JSON_TYPE_STRING) {
/* FIXME: should handle other than string too */
return -2;
}
tmp = p_strdup(conn->client.pool,*value);
array_append(&conn->cmd_param->value.v_array, &tmp, 1);
} else {
conn->cmd_param->value_set = TRUE;
switch(conn->cmd_param->type) {
case CMD_PARAM_BOOL:
conn->cmd_param->value.v_bool = (strcmp(*value,"true")==0); break;
case CMD_PARAM_INT64:
if (str_to_int64(*value, &conn->cmd_param->value.v_int64) != 0) {
conn->method_err = 400;
}
break;
case CMD_PARAM_IP:
if (net_addr2ip(*value, &conn->cmd_param->value.v_ip) != 0) {
conn->method_err = 400;
}
break;
case CMD_PARAM_STR:
conn->cmd_param->value.v_string = p_strdup(conn->client.pool, *value); break;
default:
break;
}
}
conn->json_state = JSON_STATE_COMMAND_PARAMETER_KEY;
}
return json_parse_next(conn->json_parser, type, value); /* just get next */
}
static void
doveadm_http_server_command_execute(struct client_connection_http *conn)
{
struct doveadm_cmd_context cctx;
/* final preflight check */
if (conn->method_err == 0 && !doveadm_client_is_allowed_command(conn->client.set, conn->cmd->name))
conn->method_err = 403;
if (conn->method_err != 0) {
if (conn->method_err == 404) {
doveadm_http_server_json_error(conn, "unknownMethod");
} else if (conn->method_err == 403) {
doveadm_http_server_json_error(conn, "unAuthorized");
} else if (conn->method_err == 400) {
doveadm_http_server_json_error(conn, "invalidRequest");
} else {
doveadm_http_server_json_error(conn, "internalError");
}
return;
}
struct istream *is;
const char *user;
struct ioloop *ioloop,*prev_ioloop = current_ioloop;
memset(&cctx, 0, sizeof(cctx));
// create iostream
doveadm_print_ostream = iostream_temp_create("/tmp/doveadm.", 0);
cctx.cmd = conn->cmd;
if ((cctx.cmd->flags & CMD_FLAG_NO_PRINT) == 0)
doveadm_print_init(DOVEADM_PRINT_TYPE_JSON);
/* then call it */
doveadm_cmd_params_null_terminate_arrays(&conn->pargv);
cctx.argv = array_get(&conn->pargv, (unsigned int*)&cctx.argc);
ioloop = io_loop_create();
lib_signals_reset_ioloop();
doveadm_exit_code = 0;
cctx.cli = FALSE;
cctx.local_ip = conn->client.local_ip;
cctx.local_port = conn->client.local_port;
cctx.remote_ip = conn->client.remote_ip;
cctx.remote_port = conn->client.remote_port;
if (doveadm_cmd_param_str(&cctx, "user", &user))
i_info("Executing command '%s' as '%s'", cctx.cmd->name, user);
else
i_info("Executing command '%s'", cctx.cmd->name);
client_connection_set_proctitle(&conn->client, cctx.cmd->name);
cctx.cmd->cmd(&cctx);
client_connection_set_proctitle(&conn->client, "");
io_loop_set_current(prev_ioloop);
lib_signals_reset_ioloop();
o_stream_switch_ioloop(conn->client.output);
io_loop_set_current(ioloop);
io_loop_destroy(&ioloop);
if ((cctx.cmd->flags & CMD_FLAG_NO_PRINT) == 0)
doveadm_print_deinit();
if (o_stream_nfinish(doveadm_print_ostream)<0) {
i_info("Error writing output in command %s: %s",
conn->cmd->name,
o_stream_get_error(conn->client.output));
doveadm_exit_code = EX_TEMPFAIL;
}
is = iostream_temp_finish(&doveadm_print_ostream, 4096);
if (conn->first_row == TRUE) {
conn->first_row = FALSE;
} else {
o_stream_nsend_str(conn->client.output,",");
}
if (doveadm_exit_code != 0) {
if (doveadm_exit_code == 0 || doveadm_exit_code == EX_TEMPFAIL)
i_error("Command %s failed", conn->cmd->name);
doveadm_http_server_json_error(conn, "exitCode");
} else {
doveadm_http_server_json_success(conn, is);
}
i_stream_unref(&is);
}
static void
doveadm_http_server_read_request_v1(struct client_connection_http *conn)
{
enum json_type type;
const char *value, *error;
const struct doveadm_cmd_ver2 *ccmd;
struct doveadm_cmd_param *par;
int rc;
bool found;
if (conn->json_parser == NULL)
conn->json_parser = json_parser_init_flags(conn->client.input, JSON_PARSER_NO_ROOT_OBJECT);
while((rc = doveadm_http_server_json_parse_next(conn, &type, &value)) == 1) {
if (conn->json_state == JSON_STATE_INIT) {
if (type != JSON_TYPE_ARRAY) break;
conn->json_state = JSON_STATE_COMMAND;
conn->first_row = TRUE;
o_stream_nsend_str(conn->client.output,"[");
} else if (conn->json_state == JSON_STATE_COMMAND) {
if (type == JSON_TYPE_ARRAY_END) {
conn->json_state = JSON_STATE_DONE;
continue;
}
if (type != JSON_TYPE_ARRAY) break;
conn->method_err = 0;
p_free_and_null(conn->client.pool, conn->method_id);
conn->cmd = NULL;
doveadm_cmd_params_clean(&conn->pargv);
conn->json_state = JSON_STATE_COMMAND_NAME;
} else if (conn->json_state == JSON_STATE_COMMAND_NAME) {
if (type != JSON_TYPE_STRING) break;
/* see if we can find it */
found = FALSE;
array_foreach(&doveadm_cmds_ver2, ccmd) {
if (i_strccdascmp(ccmd->name, value) == 0) {
conn->cmd = ccmd;
found = TRUE;
break;
}
}
if (!found) {
json_parse_skip_next(conn->json_parser);
conn->json_state = JSON_STATE_COMMAND_ID;
conn->method_err = 404;
} else {
struct doveadm_cmd_param *param;
/* initialize pargv */
for(int pargc=0;conn->cmd->parameters[pargc].name != NULL;pargc++) {
param = array_append_space(&conn->pargv);
memcpy(param, &(conn->cmd->parameters[pargc]), sizeof(struct doveadm_cmd_param));
param->value_set = FALSE;
}
conn->json_state = JSON_STATE_COMMAND_PARAMETERS;
}
} else if (conn->json_state == JSON_STATE_COMMAND_PARAMETERS) {
if (type == JSON_TYPE_OBJECT_END) {
conn->json_state = JSON_STATE_COMMAND_ID;
continue;
}
if (type != JSON_TYPE_OBJECT) break;
conn->json_state = JSON_STATE_COMMAND_PARAMETER_KEY;
} else if (conn->json_state == JSON_STATE_COMMAND_PARAMETER_KEY) {
if (type == JSON_TYPE_OBJECT_END) {
conn->json_state = JSON_STATE_COMMAND_ID;
continue;
}
// can happen...
if (type != JSON_TYPE_OBJECT_KEY && type != JSON_TYPE_STRING) break;
/* go hunting */
found = FALSE;
array_foreach_modifiable(&conn->pargv, par) {
if (i_strccdascmp(par->name, value) == 0) {
/* it's already set, cannot have same key twice in json */
if (par->value_set) break;
conn->cmd_param = par;
found = TRUE;
break;
}
}
/* skip parameters if error has already occured */
if (!found || conn->method_err != 0) {
json_parse_skip_next(conn->json_parser);
conn->json_state = JSON_STATE_COMMAND_PARAMETER_KEY;
conn->method_err = 400;
} else {
if (conn->cmd_param->value_set) {
// FIXME: should be returned as error to client, not logged
i_info("Parameter %s already set",
conn->cmd_param->name);
break;
}
conn->value_is_array = FALSE;
conn->json_state = JSON_STATE_COMMAND_PARAMETER_VALUE;
}
} else if (conn->json_state == JSON_STATE_COMMAND_ID) {
if (type != JSON_TYPE_STRING) break;
conn->method_id = p_strdup(conn->client.pool, value);
conn->json_state = JSON_STATE_COMMAND_DONE;
} else if (conn->json_state == JSON_STATE_COMMAND_DONE) {
/* should be end of array */
if (type != JSON_TYPE_ARRAY_END) break;
doveadm_http_server_command_execute(conn);
conn->json_state = JSON_STATE_COMMAND;
} else if (conn->json_state == JSON_STATE_DONE) {
// FIXME: should be returned as error to client, not logged
i_info("Got unexpected elements in JSON data");
continue;
}
}
if (!conn->client.input->eof && rc == 0)
return;
io_remove(&conn->client.io);
doveadm_cmd_params_clean(&conn->pargv);
if (rc == -2 || (rc == 1 && conn->json_state != JSON_STATE_DONE)) {
/* this will happen if the parser above runs into unexpected element, but JSON is OK */
http_server_request_fail_close(conn->http_server_request, 400, "Unexpected element in input");
// FIXME: should be returned as error to client, not logged
i_info("unexpected element");
return;
}
if (conn->client.input->stream_errno != 0) {
http_server_request_fail_close(conn->http_server_request, 400, "Client disconnected");
i_info("read(client) failed: %s",
i_stream_get_error(conn->client.input));
return;
}
if (json_parser_deinit(&conn->json_parser, &error) != 0) {
// istream JSON parsing failures do not count as errors
http_server_request_fail_close(conn->http_server_request, 400, "Invalid JSON input");
// FIXME: should be returned as error to client, not logged
i_info("JSON parse error: %s", error);
return;
}
o_stream_nsend_str(conn->client.output,"]");
doveadm_http_server_send_response(conn);
}
static void doveadm_http_server_camelcase_value(string_t *value)
{
size_t i,k;
char *ptr = str_c_modifiable(value);
for(i=0,k=0; i < strlen(ptr);) {
if (ptr[i] == ' ' || ptr[i] == '-') {
i++;
ptr[k++] = i_toupper(ptr[i++]);
} else ptr[k++] = ptr[i++];
}
str_truncate(value, k);
}
static void
doveadm_http_server_send_api_v1(struct client_connection_http *conn)
{
string_t *tmp = str_new(conn->client.pool, 8);
size_t i,k;
const struct doveadm_cmd_ver2 *cmd;
const struct doveadm_cmd_param *par;
bool sent;
o_stream_nsend_str(conn->client.output,"[\n");
for(i = 0; i < array_count(&doveadm_cmds_ver2); i++) {
cmd = array_idx(&doveadm_cmds_ver2, i);
if (i>0) o_stream_nsend_str(conn->client.output, ",\n");
o_stream_nsend_str(conn->client.output, "\t{\"command\":\"");
json_append_escaped(tmp, cmd->name);
doveadm_http_server_camelcase_value(tmp);
o_stream_nsend_str(conn->client.output, str_c(tmp));
o_stream_nsend_str(conn->client.output, "\", \"parameters\":[");
sent = FALSE;
for(k=0;cmd->parameters[k].name != NULL; k++) {
str_truncate(tmp, 0);
par = &(cmd->parameters[k]);
if ((par->flags & CMD_PARAM_FLAG_DO_NOT_EXPOSE) != 0)
continue;
if (sent)
o_stream_nsend_str(conn->client.output, ",\n");
else
o_stream_nsend_str(conn->client.output, "\n");
sent = TRUE;
o_stream_nsend_str(conn->client.output, "\t\t{\"name\":\"");
json_append_escaped(tmp, par->name);
doveadm_http_server_camelcase_value(tmp);
o_stream_nsend_str(conn->client.output, str_c(tmp));
o_stream_nsend_str(conn->client.output, "\",\"type\":\"");
switch(par->type) {
case CMD_PARAM_BOOL:
o_stream_nsend_str(conn->client.output, "boolean");
break;
case CMD_PARAM_INT64:
o_stream_nsend_str(conn->client.output, "integer");
break;
case CMD_PARAM_ARRAY:
o_stream_nsend_str(conn->client.output, "array");
break;
case CMD_PARAM_IP:
case CMD_PARAM_ISTREAM:
case CMD_PARAM_STR:
o_stream_nsend_str(conn->client.output, "string");
}
o_stream_nsend_str(conn->client.output, "\"}");
}
if (k>0) o_stream_nsend_str(conn->client.output,"\n\t");
o_stream_nsend_str(conn->client.output,"]}");
str_truncate(tmp, 0);
}
o_stream_nsend_str(conn->client.output,"\n]");
doveadm_http_server_send_response(conn);
}
static void
doveadm_http_server_options_handler(struct client_connection_http *conn)
{
http_server_response_add_header(conn->http_response,
"Access-Control-Allow-Origin", "*");
http_server_response_add_header(conn->http_response,
"Access-Control-Allow-Methods", "GET, POST, OPTIONS");
http_server_response_add_header(conn->http_response,
"Access-Control-Allow-Request-Headers",
"Content-Type, X-API-Key, Authorization");
http_server_response_add_header(conn->http_response,
"Access-Control-Allow-Headers",
"Content-Type, WWW-Authenticate");
doveadm_http_server_send_response(conn);
}
static void
doveadm_http_server_print_mounts(struct client_connection_http *conn)
{
o_stream_nsend_str(conn->client.output,"[\n");
for(size_t i = 0; i < N_ELEMENTS(doveadm_http_server_mounts); i++) {
if (i>0)
o_stream_nsend_str(conn->client.output,",\n");
o_stream_nsend_str(conn->client.output,"{\"method\":\"");
if (doveadm_http_server_mounts[i].verb == NULL)
o_stream_nsend_str(conn->client.output,"*");
else
o_stream_nsend_str(conn->client.output,doveadm_http_server_mounts[i].verb);
o_stream_nsend_str(conn->client.output,"\",\"path\":\"");
if (doveadm_http_server_mounts[i].path == NULL)
o_stream_nsend_str(conn->client.output,"*");
else
o_stream_nsend_str(conn->client.output,doveadm_http_server_mounts[i].path);
o_stream_nsend_str(conn->client.output,"\"}");
}
o_stream_nsend_str(conn->client.output,"\n]");
doveadm_http_server_send_response(conn);
}
static bool
doveadm_http_server_authorize_request(struct client_connection_http *conn)
{
bool auth = FALSE;
struct http_auth_credentials creds;
/* no authentication specified */
if (doveadm_settings->doveadm_api_key[0] == '\0' &&
*conn->client.set->doveadm_password == '\0') {
conn->http_response = http_server_response_create(conn->http_server_request, 500, "Internal Server Error");
i_error("No authentication defined in configuration. Add API key or password");
return FALSE;
}
if (http_server_request_get_auth(conn->http_server_request, &creds) == 1) {
/* see if the mech is supported */
if (strcasecmp(creds.scheme, "Basic") == 0 && *conn->client.set->doveadm_password != '\0') {
string_t *b64_value = str_new(conn->client.pool, 32);
char *value = p_strdup_printf(conn->client.pool, "doveadm:%s", conn->client.set->doveadm_password);
base64_encode(value, strlen(value), b64_value);
if (creds.data != NULL && strcmp(creds.data, str_c(b64_value)) == 0) auth = TRUE;
else i_error("Invalid authentication attempt to HTTP API");
}
else if (strcasecmp(creds.scheme, "X-Dovecot-API") == 0 && doveadm_settings->doveadm_api_key[0] != '\0') {
string_t *b64_value = str_new(conn->client.pool, 32);
base64_encode(doveadm_settings->doveadm_api_key, strlen(doveadm_settings->doveadm_api_key), b64_value);
if (creds.data != NULL && strcmp(creds.data, str_c(b64_value)) == 0) auth = TRUE;
else i_error("Invalid authentication attempt to HTTP API");
}
else i_error("Unsupported authentication scheme to HTTP API");
}
if (auth == FALSE) {
conn->http_response = http_server_response_create(conn->http_server_request, 401, "Authentication required");
if (doveadm_settings->doveadm_api_key[0] != '\0')
http_server_response_add_header(conn->http_response,
"WWW-Authenticate", "X-Dovecot-API"
);
if (*conn->client.set->doveadm_password != '\0')
http_server_response_add_header(conn->http_response,
"WWW-Authenticate", "Basic Realm=\"doveadm\""
);
}
return auth;
}
static void
doveadm_http_server_handle_request(void *context, struct http_server_request *req)
{
struct client_connection_http *conn = context;
conn->http_server_request = req;
conn->http_request = http_server_request_get(req);
struct doveadm_http_server_mount *ep = NULL;
http_server_connection_ref(conn->http_client);
http_server_request_set_destroy_callback(req, doveadm_http_server_request_destroy, conn);
http_server_request_ref(conn->http_server_request);
for(size_t i = 0; i < N_ELEMENTS(doveadm_http_server_mounts); i++) {
if (doveadm_http_server_mounts[i].verb == NULL ||
strcmp(conn->http_request->method, doveadm_http_server_mounts[i].verb) == 0) {
if (doveadm_http_server_mounts[i].path == NULL ||
strcmp(conn->http_request->target.url->path, doveadm_http_server_mounts[i].path) == 0) {
ep = &doveadm_http_server_mounts[i];
break;
}
}
}
if (ep == NULL) {
http_server_request_fail_close(req, 404, "Path Not Found");
return;
}
if (ep->auth == TRUE && !doveadm_http_server_authorize_request(conn)) {
doveadm_http_server_send_response(conn);
return;
}
conn->http_response = http_server_response_create(req, 200, "OK");
http_server_response_add_header(conn->http_response, "Content-Type",
"application/json; charset=utf-8");
if (strcmp(conn->http_request->method, "POST") == 0) {
/* handle request */
conn->client.input = conn->http_request->payload;
i_stream_set_name(conn->client.input, net_ip2addr(&conn->client.remote_ip));
i_stream_ref(conn->client.input);
conn->client.io = io_add_istream(conn->client.input, *ep->handler, conn);
conn->client.output = iostream_temp_create_named
("/tmp/doveadm.", 0, net_ip2addr(&conn->client.remote_ip));
p_array_init(&conn->pargv, conn->client.pool, 5);
ep->handler(conn);
} else {
conn->client.output = iostream_temp_create_named
("/tmp/doveadm.", 0, net_ip2addr(&conn->client.remote_ip));
ep->handler(conn);
}
}
static void doveadm_http_server_send_response(void *context)
{
struct client_connection_http *conn = context;
if (conn->client.output != NULL) {
if (o_stream_nfinish(conn->client.output) == -1) {
i_info("error writing output: %s",
o_stream_get_error(conn->client.output));
o_stream_destroy(&conn->client.output);
http_server_response_update_status(conn->http_response, 500, "Internal server error");
} else {
// send the payload response
struct istream *is;
is = iostream_temp_finish(&conn->client.output, IO_BLOCK_SIZE);
http_server_response_set_payload(conn->http_response, is);
i_stream_unref(&is);
}
}
// submit response
http_server_response_submit_close(conn->http_response);
}
static const struct http_server_settings http_server_set = {
.max_client_idle_time_msecs = 0,
.max_pipelined_requests = 0
};
void doveadm_http_server_init(void)
{
doveadm_http_server = http_server_init(&http_server_set);
}
void doveadm_http_server_deinit(void)
{
http_server_deinit(&doveadm_http_server);
}