smcp_status_t
plugtest_test_handler(smcp_node_t node)
{
smcp_status_t ret = SMCP_STATUS_NOT_ALLOWED;
char* content = NULL;
coap_size_t max_len = 0;
smcp_method_t method = smcp_inbound_get_code();
if(method==COAP_METHOD_GET) {
ret = smcp_outbound_begin_response(COAP_RESULT_205_CONTENT);
} else if(method==COAP_METHOD_POST) {
ret = smcp_outbound_begin_response(COAP_RESULT_201_CREATED);
} else if(method==COAP_METHOD_PUT) {
ret = smcp_outbound_begin_response(COAP_RESULT_204_CHANGED);
} else if(method==COAP_METHOD_DELETE) {
ret = smcp_outbound_begin_response(COAP_RESULT_202_DELETED);
}
if(ret) goto bail;
smcp_outbound_add_option_uint(COAP_OPTION_CONTENT_TYPE, COAP_CONTENT_TYPE_TEXT_PLAIN);
content = smcp_outbound_get_content_ptr(&max_len);
if(!content) {
ret = SMCP_STATUS_FAILURE;
goto bail;
}
smcp_inbound_get_path(content, SMCP_GET_PATH_LEADING_SLASH|SMCP_GET_PATH_INCLUDE_QUERY);
strlcat(content,"\nPlugtest!\nMethod = ",max_len);
strlcat(content,coap_code_to_cstr(method),max_len);
strlcat(content,"\n",max_len);
{
const uint8_t* value;
coap_size_t value_len;
coap_option_key_t key;
while((key=smcp_inbound_next_option(&value, &value_len))!=COAP_OPTION_INVALID) {
strlcat(content,coap_option_key_to_cstr(key,1),max_len);
strlcat(content,": ",max_len);
if(coap_option_value_is_string(key)) {
int argh = strlen(content)+value_len;
strlcat(content,(char*)value,MIN(max_len,argh+1));
content[argh] = 0;
} else {
strlcat(content,"<binary>",max_len);
}
strlcat(content,"\n",max_len);
}
}
smcp_outbound_set_content_len((coap_size_t)strlen(content));
ret = smcp_outbound_send();
bail:
return ret;
}
smcp_status_t
cgi_node_async_resend_response(void* context)
{
smcp_status_t ret = 0;
cgi_node_request_t request = context;
coap_size_t block_len = (1<<((request->block2&0x7)+4));
coap_size_t max_len;
syslog(LOG_INFO, "cgi-node: Resending async response. . .");
ret = smcp_outbound_begin_async_response(COAP_RESULT_205_CONTENT,&request->async_response);
require_noerr(ret,bail);
// ret = smcp_outbound_add_option_uint(COAP_OPTION_CONTENT_TYPE, COAP_CONTENT_TYPE_TEXT_PLAIN);
// require_noerr(ret,bail);
if(request->block1!=BLOCK_OPTION_UNSPECIFIED) {
ret = smcp_outbound_add_option_uint(COAP_OPTION_BLOCK1,request->block1);
require_noerr(ret,bail);
}
if(request->state == CGI_NODE_STATE_ACTIVE_BLOCK2_WAIT_ACK) {
if(request->stdout_buffer_len>block_len || request->fd_cmd_stdout>=0 || ((request->block2>>4)!=0)) {
if(request->stdout_buffer_len>block_len || request->fd_cmd_stdout>=0)
request->block2 |= (1<<3);
else
request->block2 &= ~(1<<3);
ret = smcp_outbound_add_option_uint(COAP_OPTION_BLOCK2,request->block2);
require_noerr(ret,bail);
}
char *content = smcp_outbound_get_content_ptr(&max_len);
require_noerr(ret,bail);
memcpy(content,request->stdout_buffer,MIN(request->stdout_buffer_len,block_len));
ret = smcp_outbound_set_content_len(MIN(request->stdout_buffer_len,block_len));
require_noerr(ret,bail);
}
ret = smcp_outbound_send();
require_noerr(ret,bail);
bail:
return ret;
}
static smcp_status_t
retry_sending_event(struct smcp_observer_s* observer)
{
smcp_status_t status;
smcp_t const self = smcp_get_current_instance();
status = smcp_outbound_begin_response(COAP_RESULT_205_CONTENT);
require_noerr(status,bail);
status = smcp_outbound_set_async_response(&observer->async_response);
require_noerr(status,bail);
status = smcp_outbound_add_option_uint(COAP_OPTION_OBSERVE,observer->seq);
require_noerr(status,bail);
self->outbound.packet->tt = SHOULD_CONFIRM_EVENT_FOR_OBSERVER(observer)?COAP_TRANS_TYPE_CONFIRMABLE:COAP_TRANS_TYPE_NONCONFIRMABLE;
self->inbound.has_observe_option = true;
self->is_responding = true;
self->force_current_outbound_code = true;
self->is_processing_message = true;
self->did_respond = false;
#if VERBOSE_DEBUG
coap_dump_header(
SMCP_DEBUG_OUT_FILE,
"FAKE Inbound:\t",
self->inbound.packet,
self->inbound.packet_len
);
#endif
status = smcp_handle_request(self);
require(!status||status==SMCP_STATUS_NOT_FOUND||status==SMCP_STATUS_NOT_ALLOWED,bail);
if(status) {
smcp_outbound_set_content_len(0);
smcp_outbound_send();
}
bail:
self->is_processing_message = false;
self->did_respond = false;
return status;
}
smcp_status_t
plugtest_obs_handler(
struct plugtest_server_s *self
) {
smcp_status_t ret = SMCP_STATUS_NOT_ALLOWED;
smcp_method_t method = smcp_inbound_get_code();
if(method==COAP_METHOD_GET) {
char* content = NULL;
coap_size_t max_len = 0;
ret = smcp_outbound_begin_response(COAP_RESULT_205_CONTENT);
require_noerr(ret, bail);
ret = smcp_outbound_add_option_uint(COAP_OPTION_CONTENT_TYPE, COAP_CONTENT_TYPE_TEXT_PLAIN);
require_noerr(ret, bail);
if(!smcp_timer_is_scheduled(smcp_get_current_instance(), &self->obs_timer))
plugtest_obs_timer_callback(smcp_get_current_instance(),self);
ret = smcp_observable_update(&self->observable,PLUGTEST_OBS_KEY);
check_noerr(ret);
ret = smcp_outbound_add_option_uint(COAP_OPTION_MAX_AGE,10);
require_noerr(ret, bail);
content = smcp_outbound_get_content_ptr(&max_len);
require_action(content!=NULL, bail, ret = SMCP_STATUS_FAILURE);
require_action(max_len>11, bail, ret = SMCP_STATUS_MESSAGE_TOO_BIG);
ret = smcp_outbound_set_content_len(
(coap_size_t)strlen(uint32_to_dec_cstr(content, (uint32_t)time(NULL)))
);
require_noerr(ret, bail);
ret = smcp_outbound_send();
require_noerr(ret, bail);
}
bail:
return ret;
}
smcp_status_t
smcp_outbound_set_content_formatted(const char* fmt, ...) {
smcp_status_t ret = SMCP_STATUS_FAILURE;
va_list args;
char* content = smcp_outbound_get_content_ptr(NULL);
coap_size_t len = smcp_outbound_get_space_remaining();
require(content!=NULL, bail);
content += smcp_get_current_instance()->outbound.content_len;
va_start(args,fmt);
len = (coap_size_t)vsnprintf(content,len,fmt,args);
require(len!=0,bail);
len += smcp_get_current_instance()->outbound.content_len;
ret = smcp_outbound_set_content_len(len);
bail:
va_end(args);
return ret;
}
smcp_status_t
resend_test_request(void* context) {
test_data_s* test_data = context;
smcp_status_t status = 0;
status = smcp_outbound_begin(smcp_get_current_instance(),test_data->outbound_code, test_data->outbound_tt);
require_noerr(status,bail);
status = smcp_outbound_set_uri(test_data->url, 0);
require_noerr(status,bail);
if (test_data->outbound_content_type != COAP_CONTENT_TYPE_UNKNOWN) {
status = smcp_outbound_add_option_uint(COAP_OPTION_CONTENT_TYPE, test_data->outbound_content_type);
require_noerr(status,bail);
}
if (test_data->extra & EXT_BLOCK_01) {
struct coap_block_info_s block1_info;
uint32_t resource_length = 200;
uint32_t block_stop;
coap_decode_block(&block1_info, test_data->block1_option + (1<<4));
block_stop = block1_info.block_offset+block1_info.block_size;
if (block1_info.block_offset < resource_length) {
if (block_stop >= resource_length) {
test_data->block1_option &= ~(1<<3);
} else {
test_data->block1_option |= (1<<3);
}
if (test_data->has_block1_option) {
test_data->block1_option += (1<<4);
}
smcp_outbound_add_option_uint(COAP_OPTION_BLOCK1, test_data->block1_option);
if (block1_info.block_m) {
coap_size_t max_len = 0;
uint32_t i;
uint32_t block_stop;
char* content = NULL;
content = smcp_outbound_get_content_ptr(&max_len);
if (!content) {
status = SMCP_STATUS_FAILURE;
goto bail;
}
block_stop = block1_info.block_offset+block1_info.block_size;
for (i = block1_info.block_offset; i < block_stop; i++) {
if (!((i + 1) % 64)) {
content[i-block1_info.block_offset] = '\n';
} else {
content[i-block1_info.block_offset] = '0'+(i%10);
}
}
status = smcp_outbound_set_content_len(MIN((coap_code_t)(block_stop-block1_info.block_offset),(coap_code_t)(resource_length-block1_info.block_offset)));
require_noerr(status,bail);
}
}
}
if(test_data->extra & EXT_BLOCK_02) {
smcp_outbound_add_option_uint(COAP_OPTION_BLOCK2, 1); // 32 byte block size.
}
status = smcp_outbound_send();
if(status) {
check_noerr(status);
fprintf(stderr,
"smcp_outbound_send() returned error %d(%s).\n",
status,
smcp_status_to_cstr(status));
goto bail;
} else {
test_data->outbound_attempts++;
}
bail:
return status;
}
smcp_status_t
smcp_variable_node_request_handler(
smcp_variable_node_t node
) {
// TODO: Make this function use less stack space!
smcp_method_t method = smcp_inbound_get_code();
smcp_status_t ret = SMCP_STATUS_NOT_FOUND;
SMCP_NON_RECURSIVE coap_content_type_t content_type;
SMCP_NON_RECURSIVE char* content_ptr;
SMCP_NON_RECURSIVE size_t content_len;
SMCP_NON_RECURSIVE char buffer[SMCP_VARIABLE_MAX_VALUE_LENGTH+1];
SMCP_NON_RECURSIVE coap_content_type_t reply_content_type;
uint8_t key_index = BAD_KEY_INDEX;
size_t value_len;
bool needs_prefix = true;
char* prefix_name = "";
content_type = smcp_inbound_get_content_type();
content_ptr = (char*)smcp_inbound_get_content_ptr();
content_len = smcp_inbound_get_content_len();
reply_content_type = SMCP_CONTENT_TYPE_APPLICATION_FORM_URLENCODED;
require(node, bail);
// Look up the key index.
if(smcp_inbound_peek_option(NULL,&value_len)==COAP_OPTION_URI_PATH) {
if(!value_len) {
needs_prefix = false;
smcp_inbound_next_option(NULL,NULL);
} else for(key_index=0;key_index<BAD_KEY_INDEX;key_index++) {
ret = node->func(node,SMCP_VAR_GET_KEY,key_index,buffer);
require_action(ret==0,bail,ret=SMCP_STATUS_NOT_FOUND);
if(smcp_inbound_option_strequal(COAP_OPTION_URI_PATH, buffer)) {
smcp_inbound_next_option(NULL,NULL);
break;
}
}
}
{
coap_option_key_t key;
const uint8_t* value;
while((key=smcp_inbound_next_option(&value, &value_len))!=COAP_OPTION_INVALID) {
require_action(key!=COAP_OPTION_URI_PATH,bail,ret=SMCP_STATUS_NOT_FOUND);
if(key==COAP_OPTION_URI_QUERY) {
if( method == COAP_METHOD_POST
&& value_len>=2
&& strhasprefix_const((const char*)value,"v=")
) {
DEBUG_PRINTF("variable-node: value is in the query.");
content_type = COAP_CONTENT_TYPE_TEXT_PLAIN;
content_ptr = (char*)value+2;
content_len = value_len-2;
}
// } else if(key==COAP_OPTION_ETAG) {
// } else if(key==COAP_OPTION_IF_MATCH) {
// } else if(key==COAP_OPTION_IF_NONE_MATCH) {
} else if(key==COAP_OPTION_ACCEPT) {
reply_content_type = 0;
if(value_len==1)
reply_content_type = value[0];
else {
// Unsupported type.
}
} else if(COAP_OPTION_IS_CRITICAL(key)) {
ret=SMCP_STATUS_BAD_OPTION;
assert_printf("Unrecognized option %d, \"%s\"",
key,
coap_option_key_to_cstr(key, false)
);
goto bail;
}
}
}
// TODO: Implement me!
if(method == COAP_METHOD_PUT)
method = COAP_METHOD_POST;
if(method == COAP_METHOD_POST) {
require_action(!smcp_inbound_is_dupe(),bail,ret=0);
require_action(
key_index!=BAD_KEY_INDEX,
bail,
ret=SMCP_STATUS_NOT_ALLOWED
);
if(content_type==SMCP_CONTENT_TYPE_APPLICATION_FORM_URLENCODED) {
char* key = NULL;
char* value = NULL;
content_len = 0;
while(
url_form_next_value(
(char**)&content_ptr,
&key,
&value
)
&& key
&& value
) {
if(strequal_const(key, "v")) {
content_ptr = value;
content_len = strlen(value);
break;
}
}
}
// Make sure our content is zero terminated.
((char*)content_ptr)[content_len] = 0;
ret = node->func(node,SMCP_VAR_SET_VALUE,key_index,(char*)content_ptr);
require_noerr(ret,bail);
ret = smcp_outbound_begin_response(COAP_RESULT_204_CHANGED);
require_noerr(ret,bail);
ret = smcp_outbound_send();
require_noerr(ret,bail);
} else if(method == COAP_METHOD_GET) {
if(key_index==BAD_KEY_INDEX) {
char* content_end_ptr;
ret = smcp_outbound_begin_response(COAP_RESULT_205_CONTENT);
require_noerr(ret,bail);
smcp_outbound_add_option_uint(COAP_OPTION_CONTENT_TYPE, COAP_CONTENT_TYPE_APPLICATION_LINK_FORMAT);
ret = smcp_observable_update(&node->observable, SMCP_OBSERVABLE_BROADCAST_KEY);
check_string(ret==0,smcp_status_to_cstr(ret));
content_ptr = smcp_outbound_get_content_ptr(&content_len);
content_end_ptr = content_ptr+content_len;
for(key_index=0;key_index<BAD_KEY_INDEX;key_index++) {
ret = node->func(node,SMCP_VAR_GET_KEY,key_index,buffer);
if(ret) break;
if(content_ptr+2>=content_end_ptr) {
// No more room for content.
break;
}
*content_ptr++ = '<';
if(needs_prefix) {
content_ptr += url_encode_cstr(content_ptr, prefix_name, (content_end_ptr-content_ptr)-1);
content_ptr = stpncpy(content_ptr,"/",MIN(1,(content_end_ptr-content_ptr)-1));
}
content_ptr += url_encode_cstr(content_ptr, buffer, (content_end_ptr-content_ptr)-1);
*content_ptr++ = '>';
ret = node->func(node,SMCP_VAR_GET_VALUE,key_index,buffer);
if(content_ptr+4>=content_end_ptr) {
// No more room for content.
break;
}
if(!ret) {
strcpy(content_ptr,";v=");
content_ptr += 3;
content_ptr += quoted_cstr(content_ptr, buffer, (content_end_ptr-content_ptr)-1);
}
ret = node->func(node,SMCP_VAR_GET_LF_TITLE,key_index,buffer);
if(content_ptr+8>=content_end_ptr) {
// No more room for content.
break;
}
if(!ret) {
strcpy(content_ptr,";title=");
content_ptr += 7;
content_ptr += quoted_cstr(content_ptr, buffer, (content_end_ptr-content_ptr)-1);
}
// Observation flag
if(0==node->func(node,SMCP_VAR_GET_OBSERVABLE,key_index,NULL)) {
content_ptr = stpncpy(content_ptr,";obs",MIN(4,(content_end_ptr-content_ptr)-1));
}
*content_ptr++ = ',';
}
ret = smcp_outbound_set_content_len(content_len-(content_end_ptr-content_ptr));
require_noerr(ret,bail);
ret = smcp_outbound_send();
} else {
size_t replyContentLength = 0;
char *replyContent;
ret = smcp_outbound_begin_response(COAP_RESULT_205_CONTENT);
require_noerr(ret,bail);
if(0==node->func(node,SMCP_VAR_GET_OBSERVABLE,key_index,buffer)) {
ret = smcp_observable_update(&node->observable, key_index);
check_string(ret==0,smcp_status_to_cstr(ret));
}
if(reply_content_type == SMCP_CONTENT_TYPE_APPLICATION_FORM_URLENCODED) {
uint32_t etag;
if(0==node->func(node,SMCP_VAR_GET_MAX_AGE,key_index,buffer)) {
#if HAVE_STRTOL
uint32_t max_age = strtol(buffer,NULL,0)&0xFFFFFF;
#else
uint32_t max_age = atoi(buffer)&0xFFFFFF;
#endif
smcp_outbound_add_option_uint(COAP_OPTION_MAX_AGE, max_age);
}
ret = node->func(node,SMCP_VAR_GET_VALUE,key_index,buffer);
require_noerr(ret,bail);
fasthash_start(0);
fasthash_feed((const uint8_t*)buffer,strlen(buffer));
etag = fasthash_finish_uint32();
smcp_outbound_add_option_uint(COAP_OPTION_CONTENT_TYPE, SMCP_CONTENT_TYPE_APPLICATION_FORM_URLENCODED);
smcp_outbound_add_option_uint(COAP_OPTION_ETAG, etag);
replyContent = smcp_outbound_get_content_ptr(&replyContentLength);
*replyContent++ = 'v';
*replyContent++ = '=';
replyContentLength -= 2;
replyContentLength = url_encode_cstr(
replyContent,
buffer,
replyContentLength
);
ret = smcp_outbound_set_content_len(replyContentLength+2);
} else {
ret = node->func(node,SMCP_VAR_GET_VALUE,key_index,buffer);
require_noerr(ret,bail);
ret = smcp_outbound_append_content(buffer, SMCP_CSTR_LEN);
}
require_noerr(ret,bail);
ret = smcp_outbound_send();
}
} else {
ret = smcp_default_request_handler(
(void*)node
);
check_string(ret == SMCP_STATUS_OK, smcp_status_to_cstr(ret));
}
bail:
check_string(ret == SMCP_STATUS_OK, smcp_status_to_cstr(ret));
return ret;
}
smcp_status_t
plugtest_large_handler(
smcp_node_t node
) {
smcp_status_t ret = SMCP_STATUS_NOT_ALLOWED;
char* content = NULL;
coap_size_t max_len = 0;
smcp_method_t method = smcp_inbound_get_code();
uint32_t block_option = 0x03;
uint32_t block_start = 0;
uint32_t block_stop = 0;
uint32_t resource_length = 2000;
if(method==COAP_METHOD_GET) {
ret = 0;
}
require_noerr(ret,bail);
{
const uint8_t* value;
coap_size_t value_len;
coap_option_key_t key;
while((key=smcp_inbound_next_option(&value, &value_len))!=COAP_OPTION_INVALID) {
if(key == COAP_OPTION_BLOCK2) {
uint8_t i;
block_option = 0;
for(i = 0; i < value_len; i++)
block_option = (block_option << 8) + value[i];
}
}
}
ret = smcp_outbound_begin_response(COAP_RESULT_205_CONTENT);
require_noerr(ret,bail);
ret = smcp_outbound_add_option_uint(COAP_OPTION_CONTENT_TYPE, COAP_CONTENT_TYPE_TEXT_PLAIN);
require_noerr(ret,bail);
ret = smcp_outbound_add_option_uint(COAP_OPTION_MAX_AGE,60*60);
require_noerr(ret,bail);
max_len = smcp_outbound_get_space_remaining()-2;
// Here we are making sure our data will fit,
// and adjusting our block-option size accordingly.
do {
struct coap_block_info_s block_info;
coap_decode_block(&block_info, block_option);
block_start = block_info.block_offset;
block_stop = block_info.block_offset + block_info.block_size;
if(max_len<(block_stop-block_start) && block_option!=0 && !block_info.block_offset) {
block_option--;
block_stop = 0;
continue;
}
} while(0==block_stop);
require_action(block_start<resource_length,bail,ret=SMCP_STATUS_INVALID_ARGUMENT);
if(block_stop>=resource_length)
block_option &= ~(1<<3);
else
block_option |= (1<<3);
ret = smcp_outbound_add_option_uint(COAP_OPTION_BLOCK2,block_option);
require_noerr(ret,bail);
content = smcp_outbound_get_content_ptr(&max_len);
require_action(NULL!=content, bail, ret = SMCP_STATUS_FAILURE);
require_action(max_len>(block_stop-block_start), bail, ret = SMCP_STATUS_MESSAGE_TOO_BIG);
{
uint32_t i;
for(i=block_start;i<block_stop;i++) {
if(!((i+1)%64))
content[i-block_start] = '\n';
else
content[i-block_start] = '0'+(i%10);
}
}
ret = smcp_outbound_set_content_len((coap_size_t)MIN(block_stop-block_start,resource_length-block_start));
if(ret) goto bail;
ret = smcp_outbound_send();
bail:
return ret;
}
