tb_void_t tb_http_status_cler(tb_http_status_t* status, tb_bool_t host_changed)
{
// check
tb_assert_and_check_return(status);
// clear status
status->code = 0;
status->bgzip = 0;
status->bdeflate = 0;
status->bchunked = 0;
status->content_size = -1;
status->document_size = -1;
status->state = TB_STATE_OK;
// clear content type
tb_string_clear(&status->content_type);
// clear location
tb_string_clear(&status->location);
// host is changed? clear the alived state
if (host_changed)
{
status->version = 1;
status->balived = 0;
status->bseeked = 0;
}
}
tb_xml_node_ref_t tb_xml_reader_attributes(tb_xml_reader_ref_t reader)
{
// check
tb_xml_reader_impl_t* impl = (tb_xml_reader_impl_t*)reader;
tb_assert_and_check_return_val(impl && ( impl->event == TB_XML_READER_EVENT_DOCUMENT
|| impl->event == TB_XML_READER_EVENT_ELEMENT_BEG
|| impl->event == TB_XML_READER_EVENT_ELEMENT_END
|| impl->event == TB_XML_READER_EVENT_ELEMENT_EMPTY), tb_null);
// init
tb_char_t const* p = tb_string_cstr(&impl->element);
tb_char_t const* e = p + tb_string_size(&impl->element);
// skip name
while (p < e && *p && !tb_isspace(*p)) p++;
while (p < e && *p && tb_isspace(*p)) p++;
// parse attributes
tb_size_t n = 0;
while (p < e)
{
// parse name
tb_string_clear(&impl->attribute_name);
for (; p < e && *p != '='; p++) if (!tb_isspace(*p)) tb_string_chrcat(&impl->attribute_name, *p);
if (*p != '=') break;
// parse data
tb_string_clear(&impl->attribute_data);
for (p++; p < e && (*p != '\'' && *p != '\"'); p++) ;
if (*p != '\'' && *p != '\"') break;
for (p++; p < e && (*p != '\'' && *p != '\"'); p++) tb_string_chrcat(&impl->attribute_data, *p);
if (*p != '\'' && *p != '\"') break;
p++;
// append node
if (tb_string_cstr(&impl->attribute_name) && tb_string_cstr(&impl->attribute_data))
{
// node
tb_xml_node_ref_t prev = n > 0? (tb_xml_node_ref_t)&impl->attributes[n - 1] : tb_null;
tb_xml_node_ref_t node = (tb_xml_node_ref_t)&impl->attributes[n];
// init node
tb_string_strcpy(&node->name, &impl->attribute_name);
tb_string_strcpy(&node->data, &impl->attribute_data);
// append node
if (prev) prev->next = node;
node->next = tb_null;
// next
n++;
}
}
// ok?
return n? (tb_xml_node_ref_t)&impl->attributes[0] : tb_null;
}
tb_char_t const* tb_string_ltrim(tb_string_ref_t string)
{
// check
tb_assert_and_check_return_val(string, tb_null);
// init
tb_char_t* s = (tb_char_t*)tb_string_cstr(string);
tb_size_t n = tb_string_size(string);
tb_check_return_val(s && n, tb_null);
// done
tb_char_t* p = s;
tb_char_t* e = s + n;
while (p < e && tb_isspace(*p)) p++;
// strip it
if (p < e)
{
// move it if exists spaces
if (p > s) tb_buffer_memmov(string, p - s);
}
// clear it
else tb_string_clear(string);
// ok?
return tb_string_cstr(string);
}
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
tb_size_t tb_environment_load(tb_environment_ref_t environment, tb_char_t const* name)
{
// check
tb_assert_and_check_return_val(environment && name, 0);
// clear environment first
tb_vector_clear(environment);
// get values
tb_char_t const* values = tb_environment_get_impl(name, tb_null);
tb_check_return_val(values, 0);
// init value string
tb_string_t value;
if (tb_string_init(&value))
{
// done
tb_char_t const* p = values;
tb_char_t c = '\0';
while (1)
{
// the character
c = *p++;
// make value
if (c != ';' && c) tb_string_chrcat(&value, c);
else
{
// save value to environment
if (tb_string_size(&value))
tb_vector_insert_tail(environment, tb_string_cstr(&value));
// clear value
tb_string_clear(&value);
// end?
tb_check_break(c);
}
}
// exit value string
tb_string_exit(&value);
}
// exit values
if (values) tb_free(values);
values = tb_null;
// ok?
return tb_vector_size(environment);
}
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
tb_bool_t tb_string_init(tb_string_ref_t string)
{
// check
tb_assert_and_check_return_val(string, tb_false);
// init
tb_bool_t ok = tb_buffer_init(string);
// clear it
tb_string_clear(string);
// ok?
return ok;
}
tb_char_t const* tb_string_strcpy(tb_string_ref_t string, tb_string_ref_t s)
{
// check
tb_assert_and_check_return_val(s, tb_null);
// done
tb_size_t n = tb_string_size(s);
if (n) return tb_string_cstrncpy(string, tb_string_cstr(s), n);
else
{
tb_string_clear(string);
return tb_null;
}
}
static tb_void_t tb_filter_chunked_clos(tb_filter_t* filter)
{
// check
tb_filter_chunked_t* cfilter = tb_filter_chunked_cast(filter);
tb_assert_and_check_return(cfilter);
// clear size
cfilter->size = 0;
// clear read
cfilter->read = 0;
// clear line
tb_string_clear(&cfilter->line);
}
static tb_char_t const* tb_xml_reader_text_parse(tb_xml_reader_impl_t* reader)
{
// clear text
tb_string_clear(&reader->text);
// parse text
tb_char_t* pc = tb_null;
while (tb_stream_need(reader->rstream, (tb_byte_t**)&pc, 1) && pc)
{
// is end? </ ..>
if (pc[0] == '<') return tb_string_cstr(&reader->text);
else
{
tb_string_chrcat(&reader->text, *pc);
if (!tb_stream_skip(reader->rstream, 1)) return tb_null;
}
}
return tb_null;
}
tb_void_t tb_xml_reader_clos(tb_xml_reader_ref_t reader)
{
// check
tb_xml_reader_impl_t* impl = (tb_xml_reader_impl_t*)reader;
tb_assert_and_check_return(impl);
// clos the reader stream
if (impl->rstream) tb_stream_clos(impl->rstream);
impl->rstream = tb_null;
// exit the input stream
if (impl->istream && impl->bowner) tb_stream_exit(impl->istream);
impl->istream = tb_null;
// clear level
impl->level = 0;
// clear owner
impl->bowner = tb_false;
// clear text
tb_string_clear(&impl->text);
// clear element
tb_string_clear(&impl->element);
// clear name
tb_string_clear(&impl->element_name);
// clear attribute name
tb_string_clear(&impl->attribute_name);
// clear attribute data
tb_string_clear(&impl->attribute_data);
// clear attributes
tb_long_t i = 0;
for (i = 0; i < TB_XML_READER_ATTRIBUTES_MAXN; i++)
{
tb_xml_node_ref_t node = (tb_xml_node_ref_t)(impl->attributes + i);
tb_string_clear(&node->name);
tb_string_clear(&node->data);
}
}
tb_char_t const* tb_string_rtrim(tb_string_ref_t string)
{
// check
tb_assert_and_check_return_val(string, tb_null);
// init
tb_char_t* s = (tb_char_t*)tb_string_cstr(string);
tb_size_t n = tb_string_size(string);
tb_check_return_val(s && n, tb_null);
// done
tb_char_t* e = s + n - 1;
while (e >= s && tb_isspace(*e)) e--;
// strip it
if (e >= s) tb_string_strip(string, e - s + 1);
// clear it
else tb_string_clear(string);
// ok?
return tb_string_cstr(string);
}
/* //////////////////////////////////////////////////////////////////////////////////////
* parser implementation
*/
static tb_char_t const* tb_xml_reader_element_parse(tb_xml_reader_impl_t* reader)
{
// clear element
tb_string_clear(&reader->element);
// parse element
tb_char_t ch = '\0';
tb_size_t in = 0;
while ((ch = tb_stream_bread_s8(reader->rstream)))
{
// append element
if (!in && ch == '<') in = 1;
else if (in)
{
if (ch != '>') tb_string_chrcat(&reader->element, ch);
else return tb_string_cstr(&reader->element);
}
}
// failed
tb_assertf_abort(0, "invalid element: %s from %s", tb_string_cstr(&reader->element), tb_url_get(tb_stream_url(reader->istream)));
return tb_null;
}
/* //////////////////////////////////////////////////////////////////////////////////////
* main
*/
tb_int_t tb_demo_stream_async_stream_main(tb_int_t argc, tb_char_t** argv)
{
// done
tb_demo_context_t context = {0};
do
{
// init option
context.option = tb_option_init("astream", "the astream demo", g_options);
tb_assert_and_check_break(context.option);
// done option
if (tb_option_done(context.option, argc - 1, &argv[1]))
{
// debug and verbose
context.debug = tb_option_find(context.option, "debug")? tb_false : tb_true;
context.verbose = tb_option_find(context.option, "no-verbose")? tb_false : tb_true;
// done url
if (tb_option_find(context.option, "url"))
{
// init event
context.event = tb_event_init();
tb_assert_and_check_break(context.event);
// init istream
context.istream = tb_async_stream_init_from_url(tb_null, tb_option_item_cstr(context.option, "url"));
tb_assert_and_check_break(context.istream);
// ctrl http
if (tb_async_stream_type(context.istream) == TB_STREAM_TYPE_HTTP)
{
// enable gzip?
if (tb_option_find(context.option, "gzip"))
{
// auto unzip
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_AUTO_UNZIP, 1)) break;
// need gzip
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_HEAD, "Accept-Encoding", "gzip,deflate")) break;
}
// enable debug?
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_HEAD_FUNC, context.debug? tb_demo_istream_head_func : tb_null)) break;
// custem header?
if (tb_option_find(context.option, "header"))
{
// init
tb_string_t key;
tb_string_t val;
tb_string_init(&key);
tb_string_init(&val);
// done
tb_bool_t k = tb_true;
tb_char_t const* p = tb_option_item_cstr(context.option, "header");
while (*p)
{
// is key?
if (k)
{
if (*p != ':' && !tb_isspace(*p)) tb_string_chrcat(&key, *p++);
else if (*p == ':')
{
// skip ':'
p++;
// skip space
while (*p && tb_isspace(*p)) p++;
// is val now
k = tb_false;
}
else p++;
}
// is val?
else
{
if (*p != ';') tb_string_chrcat(&val, *p++);
else
{
// skip ';'
p++;
// skip space
while (*p && tb_isspace(*p)) p++;
// set header
if (tb_string_size(&key) && tb_string_size(&val))
{
if (context.debug) tb_printf("header: %s: %s\n", tb_string_cstr(&key), tb_string_cstr(&val));
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_HEAD, tb_string_cstr(&key), tb_string_cstr(&val))) break;
}
// is key now
k = tb_true;
// clear key & val
tb_string_clear(&key);
tb_string_clear(&val);
}
}
}
// set header
if (tb_string_size(&key) && tb_string_size(&val))
{
if (context.debug) tb_printf("header: %s: %s\n", tb_string_cstr(&key), tb_string_cstr(&val));
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_HEAD, tb_string_cstr(&key), tb_string_cstr(&val))) break;
}
// exit
tb_string_exit(&key);
tb_string_exit(&val);
}
// keep alive?
if (tb_option_find(context.option, "keep-alive"))
{
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_HEAD, "Connection", "keep-alive")) break;
}
// post-data?
if (tb_option_find(context.option, "post-data"))
{
tb_char_t const* post_data = tb_option_item_cstr(context.option, "post-data");
tb_hize_t post_size = tb_strlen(post_data);
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_METHOD, TB_HTTP_METHOD_POST)) break;
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_POST_DATA, post_data, post_size)) break;
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_POST_FUNC, tb_demo_http_post_func)) break;
if (context.debug) tb_printf("post: %llu\n", post_size);
}
// post-file?
else if (tb_option_find(context.option, "post-file"))
{
tb_char_t const* url = tb_option_item_cstr(context.option, "post-file");
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_METHOD, TB_HTTP_METHOD_POST)) break;
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_POST_URL, url)) break;
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_POST_FUNC, tb_demo_http_post_func)) break;
if (context.debug) tb_printf("post: %s\n", url);
}
}
// set range
if (tb_option_find(context.option, "range"))
{
tb_char_t const* p = tb_option_item_cstr(context.option, "range");
if (p)
{
// the bof
tb_hize_t eof = 0;
tb_hize_t bof = tb_atoll(p);
while (*p && tb_isdigit(*p)) p++;
if (*p == '-')
{
p++;
eof = tb_atoll(p);
}
if (!tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_HTTP_SET_RANGE, bof, eof)) break;
}
}
// set timeout
if (tb_option_find(context.option, "timeout"))
{
tb_size_t timeout = tb_option_item_uint32(context.option, "timeout");
tb_async_stream_ctrl(context.istream, TB_STREAM_CTRL_SET_TIMEOUT, &timeout);
}
// print verbose info
if (context.verbose) tb_printf("open: %s: ..\n", tb_option_item_cstr(context.option, "url"));
// open istream
if (!tb_async_stream_open(context.istream, tb_demo_istream_open_func, &context))
{
// print verbose info
if (context.verbose) tb_printf("open: failed\n");
break;
}
// wait it
tb_event_wait(context.event, -1);
}
else tb_option_help(context.option);
}
else tb_option_help(context.option);
} while (0);
// exit transfer
if (context.transfer) tb_async_transfer_exit(context.transfer);
context.transfer = tb_null;
// exit istream
if (context.istream) tb_async_stream_exit(context.istream);
context.istream = tb_null;
// exit ostream
if (context.ostream) tb_async_stream_exit(context.ostream);
context.ostream = tb_null;
// exit option
if (context.option) tb_option_exit(context.option);
context.option = tb_null;
// exit event
if (context.event) tb_event_exit(context.event);
context.event = tb_null;
return 0;
}
/* //////////////////////////////////////////////////////////////////////////////////////
* main
*/
tb_int_t tb_demo_stream_main(tb_int_t argc, tb_char_t** argv)
{
// done
tb_option_ref_t option = tb_null;
tb_stream_ref_t istream = tb_null;
tb_stream_ref_t ostream = tb_null;
tb_stream_ref_t pstream = tb_null;
do
{
// init option
option = tb_option_init("stream", "the stream demo", g_options);
tb_assert_and_check_break(option);
// done option
if (tb_option_done(option, argc - 1, &argv[1]))
{
// debug & verbose
tb_bool_t debug = tb_option_find(option, "debug");
tb_bool_t verbose = tb_option_find(option, "no-verbose")? tb_false : tb_true;
// done url
if (tb_option_find(option, "url"))
{
// init istream
istream = tb_stream_init_from_url(tb_option_item_cstr(option, "url"));
tb_assert_and_check_break(istream);
// ctrl http
if (tb_stream_type(istream) == TB_STREAM_TYPE_HTTP)
{
// enable gzip?
if (tb_option_find(option, "gzip"))
{
// auto unzip
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_AUTO_UNZIP, 1)) break;
// need gzip
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_HEAD, "Accept-Encoding", "gzip,deflate")) break;
}
// enable debug?
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_HEAD_FUNC, debug? tb_demo_stream_head_func : tb_null)) break;
// custem header?
if (tb_option_find(option, "header"))
{
// init
tb_string_t key;
tb_string_t val;
tb_string_init(&key);
tb_string_init(&val);
// done
tb_bool_t k = tb_true;
tb_char_t const* p = tb_option_item_cstr(option, "header");
while (*p)
{
// is key?
if (k)
{
if (*p != ':' && !tb_isspace(*p)) tb_string_chrcat(&key, *p++);
else if (*p == ':')
{
// skip ':'
p++;
// skip space
while (*p && tb_isspace(*p)) p++;
// is val now
k = tb_false;
}
else p++;
}
// is val?
else
{
if (*p != ';') tb_string_chrcat(&val, *p++);
else
{
// skip ';'
p++;
// skip space
while (*p && tb_isspace(*p)) p++;
// set header
if (tb_string_size(&key) && tb_string_size(&val))
{
if (debug) tb_printf("header: %s: %s\n", tb_string_cstr(&key), tb_string_cstr(&val));
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_HEAD, tb_string_cstr(&key), tb_string_cstr(&val))) break;
}
// is key now
k = tb_true;
// clear key & val
tb_string_clear(&key);
tb_string_clear(&val);
}
}
}
// set header
if (tb_string_size(&key) && tb_string_size(&val))
{
if (debug) tb_printf("header: %s: %s\n", tb_string_cstr(&key), tb_string_cstr(&val));
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_HEAD, tb_string_cstr(&key), tb_string_cstr(&val))) break;
}
// exit
tb_string_exit(&key);
tb_string_exit(&val);
}
// keep alive?
if (tb_option_find(option, "keep-alive"))
{
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_HEAD, "Connection", "keep-alive")) break;
}
// post-data?
if (tb_option_find(option, "post-data"))
{
tb_char_t const* post_data = tb_option_item_cstr(option, "post-data");
tb_hize_t post_size = tb_strlen(post_data);
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_METHOD, TB_HTTP_METHOD_POST)) break;
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_POST_DATA, post_data, post_size)) break;
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_POST_FUNC, tb_demo_http_post_func)) break;
if (debug) tb_printf("post: %llu\n", post_size);
}
// post-file?
else if (tb_option_find(option, "post-file"))
{
tb_char_t const* url = tb_option_item_cstr(option, "post-file");
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_METHOD, TB_HTTP_METHOD_POST)) break;
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_POST_URL, url)) break;
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_POST_FUNC, tb_demo_http_post_func)) break;
if (debug) tb_printf("post: %s\n", url);
}
}
// set range
if (tb_option_find(option, "range"))
{
tb_char_t const* p = tb_option_item_cstr(option, "range");
if (p)
{
// the bof
tb_hize_t eof = 0;
tb_hize_t bof = tb_atoll(p);
while (*p && tb_isdigit(*p)) p++;
if (*p == '-')
{
p++;
eof = tb_atoll(p);
}
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_HTTP_SET_RANGE, bof, eof)) break;
}
}
// set timeout
if (tb_option_find(option, "timeout"))
{
tb_size_t timeout = tb_option_item_uint32(option, "timeout");
if (!tb_stream_ctrl(istream, TB_STREAM_CTRL_SET_TIMEOUT, timeout)) break;
}
// print verbose info
if (verbose) tb_printf("open: %s: ..\n", tb_option_item_cstr(option, "url"));
// open istream
if (!tb_stream_open(istream))
{
// print verbose info
if (verbose) tb_printf("open: %s\n", tb_state_cstr(tb_stream_state(istream)));
break;
}
// print verbose info
if (verbose) tb_printf("open: ok\n");
// init ostream
if (tb_option_find(option, "more0"))
{
// the path
tb_char_t const* path = tb_option_item_cstr(option, "more0");
// init
ostream = tb_stream_init_from_file(path, TB_FILE_MODE_RW | TB_FILE_MODE_CREAT | TB_FILE_MODE_BINARY | TB_FILE_MODE_TRUNC);
// print verbose info
if (verbose) tb_printf("save: %s\n", path);
}
else
{
// the name
tb_char_t const* name = tb_strrchr(tb_option_item_cstr(option, "url"), '/');
if (!name) name = tb_strrchr(tb_option_item_cstr(option, "url"), '\\');
if (!name) name = "/stream.file";
// the path
tb_char_t path[TB_PATH_MAXN] = {0};
if (tb_directory_current(path, TB_PATH_MAXN))
tb_strcat(path, name);
else break;
// init file
ostream = tb_stream_init_from_file(path, TB_FILE_MODE_RW | TB_FILE_MODE_CREAT | TB_FILE_MODE_BINARY | TB_FILE_MODE_TRUNC);
// print verbose info
if (verbose) tb_printf("save: %s\n", path);
}
tb_assert_and_check_break(ostream);
// the limit rate
tb_size_t limitrate = 0;
if (tb_option_find(option, "limitrate"))
limitrate = tb_option_item_uint32(option, "limitrate");
// save it
tb_hong_t save = 0;
tb_demo_context_t context = {0};
context.verbose = verbose;
if ((save = tb_transfer_done(istream, ostream, limitrate, tb_demo_stream_save_func, &context)) < 0) break;
}
else tb_option_help(option);
}
else tb_option_help(option);
} while (0);
// exit pstream
if (pstream) tb_stream_exit(pstream);
pstream = tb_null;
// exit istream
if (istream) tb_stream_exit(istream);
istream = tb_null;
// exit ostream
if (ostream) tb_stream_exit(ostream);
ostream = tb_null;
// exit option
if (option) tb_option_exit(option);
option = tb_null;
return 0;
}
tb_bool_t tb_xml_reader_open(tb_xml_reader_ref_t reader, tb_stream_ref_t stream, tb_bool_t bowner)
{
// check
tb_xml_reader_impl_t* impl = (tb_xml_reader_impl_t*)reader;
tb_assert_and_check_return_val(impl && stream, tb_false);
// done
tb_bool_t ok = tb_false;
do
{
// check
tb_assert_and_check_break(!impl->rstream && !impl->istream);
// init level
impl->level = 0;
// init owner
impl->bowner = bowner;
// init the input stream
impl->istream = stream;
// init the reader stream
impl->rstream = stream;
// open the reader stream if be not opened
if (!tb_stream_is_opened(impl->rstream) && !tb_stream_open(impl->rstream)) break;
// clear text
tb_string_clear(&impl->text);
// clear element
tb_string_clear(&impl->element);
// clear name
tb_string_clear(&impl->element_name);
// clear attribute name
tb_string_clear(&impl->attribute_name);
// clear attribute data
tb_string_clear(&impl->attribute_data);
// clear attributes
tb_long_t i = 0;
for (i = 0; i < TB_XML_READER_ATTRIBUTES_MAXN; i++)
{
tb_xml_node_ref_t node = (tb_xml_node_ref_t)(impl->attributes + i);
tb_string_clear(&node->name);
tb_string_clear(&node->data);
}
// ok
ok = tb_true;
} while (0);
// failed? close it
if (!ok) tb_xml_reader_clos(reader);
// ok?
return ok;
}
/* chunked_data
*
* head data tail
* ea5\r\n ..........\r\n e65\r\n..............\r\n 0\r\n\r\n
* ---------------------- ------------------------- ---------
* chunk0 chunk1 end
*/
static tb_long_t tb_filter_chunked_spak(tb_filter_t* filter, tb_static_stream_ref_t istream, tb_static_stream_ref_t ostream, tb_long_t sync)
{
// check
tb_filter_chunked_t* cfilter = tb_filter_chunked_cast(filter);
tb_assert_and_check_return_val(cfilter && istream && ostream, -1);
tb_assert_and_check_return_val(tb_static_stream_valid(istream) && tb_static_stream_valid(ostream), -1);
// the idata
tb_byte_t const* ip = tb_static_stream_pos(istream);
tb_byte_t const* ie = tb_static_stream_end(istream);
// trace
tb_trace_d("[%p]: isize: %lu, beof: %d", cfilter, tb_static_stream_size(istream), filter->beof);
// find the eof: '\r\n 0\r\n\r\n'
if ( !filter->beof
&& ip + 6 < ie
&& ie[-7] == '\r'
&& ie[-6] == '\n'
&& ie[-5] == '0'
&& ie[-4] == '\r'
&& ie[-3] == '\n'
&& ie[-2] == '\r'
&& ie[-1] == '\n')
{
// is eof
filter->beof = tb_true;
}
// the odata
tb_byte_t* op = (tb_byte_t*)tb_static_stream_pos(ostream);
tb_byte_t* oe = (tb_byte_t*)tb_static_stream_end(ostream);
tb_byte_t* ob = op;
// parse chunked head and chunked tail
if (!cfilter->size || cfilter->read >= cfilter->size)
{
// walk
while (ip < ie)
{
// the charactor
tb_char_t ch = *ip++;
// trace
tb_trace_d("[%p]: character: %x", cfilter, ch);
// check
tb_assert_and_check_return_val(ch, -1);
// append char to line
if (ch != '\n') tb_string_chrcat(&cfilter->line, ch);
// is line end?
else
{
// check
tb_char_t const* pb = tb_string_cstr(&cfilter->line);
tb_size_t pn = tb_string_size(&cfilter->line);
tb_assert_and_check_return_val(pb, -1);
// trace
tb_trace_d("[%p]: line: %s", cfilter, tb_string_cstr(&cfilter->line));
// strip '\r' if exists
if (pb[pn - 1] == '\r') tb_string_strip(&cfilter->line, pn - 1);
// is chunked tail? only "\r\n"
if (!tb_string_size(&cfilter->line))
{
// reset size
cfilter->read = 0;
cfilter->size = 0;
// trace
tb_trace_d("[%p]: tail", cfilter);
// continue
continue ;
}
// is chunked head? parse size
else
{
// parse size
cfilter->size = tb_s16tou32(pb);
// trace
tb_trace_d("[%p]: size: %lu", cfilter, cfilter->size);
// clear data
tb_string_clear(&cfilter->line);
// is eof? "0\r\n\r\n"
if (!cfilter->size)
{
// trace
tb_trace_d("[%p]: eof", cfilter);
// is eof
filter->beof = tb_true;
// continue to spak the end data
continue ;
}
// ok
break;
}
}
}
}
// check
tb_assert_and_check_return_val(cfilter->read <= cfilter->size, -1);
// read chunked data
tb_size_t size = tb_min3(ie - ip, oe - op, cfilter->size - cfilter->read);
if (size)
{
// copy data
tb_memcpy((tb_byte_t*)op, ip, size);
ip += size;
op += size;
// update read
cfilter->read += size;
}
// update stream
tb_static_stream_goto(istream, (tb_byte_t*)ip);
tb_static_stream_goto(ostream, (tb_byte_t*)op);
// trace
tb_trace_d("[%p]: read: %lu, size: %lu, beof: %u, ileft: %lu", cfilter, cfilter->read, cfilter->size, filter->beof, tb_static_stream_left(istream));
// ok
return (op - ob);
}