155 lines
5.0 KiB
C++
155 lines
5.0 KiB
C++
#include "http_server.h"
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HTTPServer::HTTPServer(Player* p, Controller* c) {
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_player = p;
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_controller = c;
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_http_server = new ESP8266WebServer(80);
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DEBUG("Connecting to wifi \"%s\"...\n", WIFI_SSID);
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WiFi.mode(WIFI_AP_STA);
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WiFi.begin(WIFI_SSID, WIFI_PASS);
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if (WiFi.waitForConnectResult() != WL_CONNECTED) {
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ERROR("Could not connect to Wifi. Rebooting.");
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delay(1000);
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ESP.restart();
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}
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INFO("WiFi connected.\n");
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MDNS.begin("esmp3");
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//_http_server->onFileUpload([&]() { _handle_upload(); yield();});
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_http_server->on("/upload", HTTP_POST, [&]() {
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_http_server->sendHeader("Connection", "close");
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_http_server->send(200, "text/plain", "OK");
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}, [&]() {
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_handle_upload();
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yield();
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});
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_http_server->on("/", HTTP_GET, [&](){ _handle_index(); });
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_http_server->on("/status", HTTP_GET, [&](){ _handle_status(); });
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_http_server->begin();
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MDNS.addService("http", "tcp", 80);
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}
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void HTTPServer::_handle_upload() {
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// https://www.gnu.org/software/tar/manual/html_node/Standard.html
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// https://www.mkssoftware.com/docs/man4/tar.4.asp
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HTTPUpload* upload = &_http_server->upload();
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DEBUG("_handle_upload Status: %d, length: %d\n", upload->status, upload->currentSize);
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if (upload->status == UPLOAD_FILE_START) {
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_chunk = new uint8_t[512];
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_chunk_length = 0;
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_upload_position = 0;
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_file_size = 0;
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_file_size_done = 0;
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_need_header = true;
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}
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if (upload->status == UPLOAD_FILE_END || upload->status == UPLOAD_FILE_ABORTED) {
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// Close the file
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delete _chunk;
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return;
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}
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uint32_t upload_offset = 0;
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while (upload_offset < upload->currentSize) {
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// Load a chunk
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if (_chunk_length < 512 && upload->currentSize > upload_offset) {
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uint16_t needed = 512 - _chunk_length;
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if (needed > upload->currentSize - upload_offset) needed = upload->currentSize - upload_offset;
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memcpy(_chunk + _chunk_length, upload->buf + upload_offset, needed);
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_chunk_length += needed;
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upload_offset += needed;
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_upload_position += needed;
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if (_chunk_length == 512) {
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// Process chunk
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DEBUG("Chunk.\n");
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if (_need_header) {
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if (_chunk[257]=='u'&&_chunk[258]=='s'&&_chunk[259]=='t'&&_chunk[260]=='a'&&_chunk[261]=='r') {
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DEBUG("It is a valid header, starting at 0x%X!\n", _upload_position-512);
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char filename[200];
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strncpy(filename, (char*)_chunk, 100);
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DEBUG("filename: %s\n", filename);
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_file_size = 0;
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_file_size_done = 0;
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for (int i=0; i<11; i++) {
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//Serial.print(_header_buffer[124 + i]);
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_file_size = (_file_size<<3) + (_chunk[124 + i] - '0');
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}
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DEBUG("filesize: %d\n", _file_size);
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uint8_t type = _chunk[156] - '0';
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if (type==0) {
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DEBUG("Is a file.\n");
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} else if (type==5) {
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DEBUG("Is a directory.\n");
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} else {
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ERROR("Unknown file type %d\n", type);
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}
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_need_header = (type==5 || _file_size==0); // No chunks needed for directories.
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} else {
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bool byte_found = false;
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for (int i=0; i<512; i++) byte_found = byte_found || _chunk[i]>0;
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if (!byte_found) {
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DEBUG("Empty chunk while looking for header -> ignoring.\n");
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} else {
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ERROR("Invalid tar header: %c %c %c %c %c. Looking at header start offset 0x%X.\n", _chunk[257], _chunk[258], _chunk[259], _chunk[260], _chunk[261], _upload_position-512);
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}
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}
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} else {
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uint16_t bytes_to_write = _file_size - _file_size_done;
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if (bytes_to_write > 512) bytes_to_write=512;
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// Write bytes...
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_file_size_done += bytes_to_write;
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if (_file_size_done >= _file_size) _need_header = true;
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}
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_chunk_length = 0;
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}
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}
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}
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}
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void HTTPServer::_handle_index() {
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String response = String("<html><head><title>ESMP3</title><script>function play_album(e) {}</script></head><body>");
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response.concat("Albums on SD card:<table>");
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std::list<String> files = _player->ls("/", false, true, false);
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for(std::list<String>::iterator it=files.begin(); it!=files.end(); it++) {
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response.concat("<tr><td>");
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response.concat(*it);
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response.concat("</td><td><a href='#' onclick='play_album();'>Play</a></td></tr>\n");
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}
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response.concat("</table></body></html>");
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_http_server->send(200, "text/html", response);
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}
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void HTTPServer::_handle_status() {
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String response = String("{");
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response.concat("\"state\": \"");
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response.concat(_player->is_playing() ? "playing" : "idle");
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response.concat("\", ");
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if (_player->is_playing()) {
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response.concat("\"album\": \"");
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response.concat(_player->album());
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response.concat("\", \"track\": ");
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response.concat(_player->track());
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response.concat(", \"position\": ");
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response.concat(_player->position());
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response.concat(", ");
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}
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response.concat("\"volume\": ");
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response.concat(_player->volume());
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response.concat(", \"volume_max\": ");
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response.concat(VOLUME_MAX);
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response.concat(", \"volume_min\": ");
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response.concat(VOLUME_MIN);
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response.concat(", \"rfid_uid\": ");
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response.concat(_controller->rfid_uid());
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response.concat("}");
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_http_server->send(200, "application/json", response);
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}
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void HTTPServer::loop() {
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_http_server->handleClient();
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MDNS.update();
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}
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