mirror of
https://github.com/jialexd/sdk-ameba-v4.0c_180328.git
synced 2024-11-28 17:20:30 +00:00
116 lines
No EOL
3.4 KiB
C
Executable file
116 lines
No EOL
3.4 KiB
C
Executable file
#include <platform_opts.h>
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#if defined(CONFIG_EXAMPLE_HTTP_DOWNLOAD) && (CONFIG_EXAMPLE_HTTP_DOWNLOAD == 1)
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#include <FreeRTOS.h>
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#include <task.h>
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#include <platform/platform_stdlib.h>
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#include <lwip/sockets.h>
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#include <lwip/netdb.h>
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#define SERVER_HOST "176.34.62.248"
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#define SERVER_PORT 80
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#define RESOURCE "/repository/IOT/Project_Cloud_A.bin"
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#define BUFFER_SIZE 2048
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#define RECV_TO 5000 // ms
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static void example_http_download_thread(void *param)
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{
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int server_fd = -1, ret;
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struct sockaddr_in server_addr;
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struct hostent *server_host;
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// Delay to wait for IP by DHCP
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vTaskDelay(10000);
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printf("\nExample: HTTP download\n");
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if((server_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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printf("ERROR: socket\n");
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goto exit;
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}
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else {
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int recv_timeout_ms = RECV_TO;
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#if defined(LWIP_SO_SNDRCVTIMEO_NONSTANDARD) && (LWIP_SO_SNDRCVTIMEO_NONSTANDARD == 0) // lwip 1.5.0
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struct timeval recv_timeout;
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recv_timeout.tv_sec = recv_timeout_ms / 1000;
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recv_timeout.tv_usec = recv_timeout_ms % 1000 * 1000;
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setsockopt(server_fd, SOL_SOCKET, SO_RCVTIMEO, &recv_timeout, sizeof(recv_timeout));
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#else // lwip 1.4.1
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setsockopt(server_fd, SOL_SOCKET, SO_RCVTIMEO, &recv_timeout_ms, sizeof(recv_timeout_ms));
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#endif
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}
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server_addr.sin_family = AF_INET;
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server_addr.sin_port = htons(SERVER_PORT);
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// Support SERVER_HOST in IP or domain name
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server_host = gethostbyname(SERVER_HOST);
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memcpy((void *) &server_addr.sin_addr, (void *) server_host->h_addr, server_host->h_length);
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if(connect(server_fd, (struct sockaddr *) &server_addr, sizeof(server_addr)) == 0) {
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unsigned char buf[BUFFER_SIZE + 1];
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int pos = 0, read_size = 0, resource_size = 0, content_len = 0, header_removed = 0;
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sprintf(buf, "GET %s HTTP/1.1\r\nHost: %s\r\n\r\n", RESOURCE, SERVER_HOST);
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write(server_fd, buf, strlen(buf));
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while((read_size = read(server_fd, buf + pos, BUFFER_SIZE - pos)) > 0) {
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if(header_removed == 0) {
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char *header = NULL;
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pos += read_size;
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buf[pos] = 0;
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header = strstr(buf, "\r\n\r\n");
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if(header) {
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char *body, *content_len_pos;
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body = header + strlen("\r\n\r\n");
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*(body - 2) = 0;
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header_removed = 1;
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printf("\nHTTP Header: %s\n", buf);
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// Remove header size to get first read size of data from body head
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read_size = pos - ((unsigned char *) body - buf);
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pos = 0;
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content_len_pos = strstr(buf, "Content-Length: ");
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if(content_len_pos) {
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content_len_pos += strlen("Content-Length: ");
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*(char*)(strstr(content_len_pos, "\r\n")) = 0;
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content_len = atoi(content_len_pos);
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}
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}
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else {
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if(pos >= BUFFER_SIZE){
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printf("ERROR: HTTP header\n");
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goto exit;
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}
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continue;
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}
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}
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printf("read resource %d bytes\n", read_size);
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resource_size += read_size;
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}
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printf("exit read. ret = %d\n", read_size);
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printf("http content-length = %d bytes, download resource size = %d bytes\n", content_len, resource_size);
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}
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else {
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printf("ERROR: connect\n");
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}
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exit:
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if(server_fd >= 0)
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close(server_fd);
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vTaskDelete(NULL);
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}
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void example_http_download(void)
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{
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if(xTaskCreate(example_http_download_thread, ((const char*)"example_http_download_thread"), 2048, NULL, tskIDLE_PRIORITY + 1, NULL) != pdPASS)
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printf("\n\r%s xTaskCreate failed", __FUNCTION__);
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}
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#endif //CONFIG_EXAMPLE_HTTP_DOWNLOAD
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