Codex added unified library, all work

This commit is contained in:
John Poole 2026-04-19 10:20:35 -07:00
commit 8370e546ff
25 changed files with 2935 additions and 0 deletions

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{
"name": "tbeam_web",
"version": "0.1.0",
"description": "Reusable WiFi AP web file service for LilyGO T-Beam Supreme SD logs.",
"frameworks": "arduino",
"platforms": "espressif32",
"dependencies": [
{
"name": "tbeam_storage",
"version": "0.1.0"
}
]
}

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#include "TBeamWeb.h"
#include <SD.h>
#include <stdarg.h>
namespace tbeam {
TBeamWeb* TBeamWeb::active_ = nullptr;
TBeamWeb::TBeamWeb(Print& diagnostic) : diagnostic_(diagnostic), server_(80) {}
bool TBeamWeb::begin(TBeamStorage& storage, const WebConfig& config) {
storage_ = &storage;
config_ = config;
clearError();
snprintf(ssid_, sizeof(ssid_), "%s-%s", config_.ssidPrefix ? config_.ssidPrefix : "TBEAM", config_.boardId ? config_.boardId : "NODE");
WiFi.mode(WIFI_AP);
WiFi.setSleep(false);
ip_ = IPAddress(192, 168, config_.ipOctet, 1);
const IPAddress gateway(192, 168, config_.ipOctet, 1);
const IPAddress netmask(255, 255, 255, 0);
if (!WiFi.softAPConfig(ip_, gateway, netmask)) {
setError("WiFi softAPConfig failed");
return false;
}
bool apOk = false;
if (config_.password && strlen(config_.password) >= 8) {
apOk = WiFi.softAP(ssid_, config_.password);
} else {
apOk = WiFi.softAP(ssid_);
}
if (!apOk) {
setError("WiFi softAP failed");
return false;
}
ip_ = WiFi.softAPIP();
active_ = this;
server_.on("/", HTTP_GET, handleRootThunk);
server_.on("/status", HTTP_GET, handleStatusThunk);
server_.on("/files", HTTP_GET, handleFilesThunk);
server_.on("/download", HTTP_GET, handleDownloadThunk);
server_.on("/delete", HTTP_POST, handleDeleteThunk);
server_.onNotFound(handleNotFoundThunk);
server_.begin(config_.port);
ready_ = true;
logf("web: AP started ssid=%s ip=%s port=%u", ssid_, ip_.toString().c_str(), (unsigned)config_.port);
return true;
}
void TBeamWeb::update() {
if (ready_) {
server_.handleClient();
}
}
void TBeamWeb::stop() {
if (ready_) {
server_.stop();
WiFi.softAPdisconnect(true);
}
ready_ = false;
}
uint8_t TBeamWeb::stationCount() const {
return (uint8_t)WiFi.softAPgetStationNum();
}
void TBeamWeb::handleRootThunk() {
if (active_) active_->handleRoot();
}
void TBeamWeb::handleStatusThunk() {
if (active_) active_->handleStatus();
}
void TBeamWeb::handleFilesThunk() {
if (active_) active_->handleFiles();
}
void TBeamWeb::handleDownloadThunk() {
if (active_) active_->handleDownload();
}
void TBeamWeb::handleDeleteThunk() {
if (active_) active_->handleDelete();
}
void TBeamWeb::handleNotFoundThunk() {
if (active_) active_->handleNotFound();
}
void TBeamWeb::handleRoot() {
String body;
body.reserve(2048);
body += F("<!doctype html><html><head><meta charset='utf-8'>");
body += F("<meta name='viewport' content='width=device-width,initial-scale=1'>");
body += F("<title>T-Beam Files</title></head><body>");
body += F("<h1>T-Beam Files</h1>");
body += F("<p>SSID: ");
body += htmlEscape(ssid_);
body += F("</p><p>IP: ");
body += htmlEscape(ip_.toString());
body += F("</p><p>SD: ");
body += (storage_ && storage_->ready()) ? F("mounted") : F("not mounted");
body += F("</p><p>Stations: ");
body += String(stationCount());
body += F("</p><p><a href='/files?path=/logs'>Files</a> ");
body += F("<a href='/status'>Status</a></p>");
body += F("</body></html>");
server_.send(200, "text/html", body);
}
void TBeamWeb::handleStatus() {
String body;
body.reserve(512);
body += F("{\"ready\":");
body += ready_ ? F("true") : F("false");
body += F(",\"ssid\":\"");
body += htmlEscape(ssid_);
body += F("\",\"ip\":\"");
body += ip_.toString();
body += F("\",\"stations\":");
body += String(stationCount());
body += F(",\"sd_ready\":");
body += (storage_ && storage_->ready()) ? F("true") : F("false");
body += F("}");
server_.send(200, "application/json", body);
}
void TBeamWeb::handleFiles() {
if (!storage_ || !storage_->ready()) {
server_.send(503, "text/plain", "SD not mounted\n");
return;
}
char path[128];
const String requested = server_.hasArg("path") ? server_.arg("path") : String("/logs");
if (!normalizePath(requested, path, sizeof(path))) {
server_.send(400, "text/plain", "invalid path\n");
return;
}
String body;
body.reserve(8192);
body += F("<!doctype html><html><head><meta charset='utf-8'>");
body += F("<meta name='viewport' content='width=device-width,initial-scale=1'>");
body += F("<title>SD Files</title></head><body>");
body += F("<h1>SD Files</h1><p>Path: ");
body += htmlEscape(path);
body += F("</p><p><a href='/'>Home</a> <a href='/files?path=/'>Root</a> <a href='/files?path=/logs'>Logs</a></p><ul>");
listDirectoryHtml(body, path, 4);
body += F("</ul></body></html>");
server_.send(200, "text/html", body);
}
void TBeamWeb::handleDownload() {
if (!storage_ || !storage_->ready()) {
server_.send(503, "text/plain", "SD not mounted\n");
return;
}
if (!server_.hasArg("path")) {
server_.send(400, "text/plain", "missing path\n");
return;
}
char path[128];
if (!normalizePath(server_.arg("path"), path, sizeof(path))) {
server_.send(400, "text/plain", "invalid path\n");
return;
}
File file = SD.open(path, FILE_READ);
if (!file || file.isDirectory()) {
file.close();
server_.send(404, "text/plain", "file not found\n");
return;
}
String filename(path);
const int slash = filename.lastIndexOf('/');
if (slash >= 0) {
filename.remove(0, slash + 1);
}
server_.sendHeader("Content-Disposition", String("attachment; filename=\"") + filename + "\"");
server_.streamFile(file, contentTypeFor(path));
file.close();
}
void TBeamWeb::handleDelete() {
if (!config_.enableDelete) {
server_.send(403, "text/plain", "delete disabled\n");
return;
}
if (!storage_ || !storage_->ready()) {
server_.send(503, "text/plain", "SD not mounted\n");
return;
}
if (!server_.hasArg("path")) {
server_.send(400, "text/plain", "missing path\n");
return;
}
char path[128];
if (!normalizePath(server_.arg("path"), path, sizeof(path))) {
server_.send(400, "text/plain", "invalid path\n");
return;
}
if (!storage_->removeFile(path)) {
server_.send(500, "text/plain", String("delete failed: ") + storage_->lastError() + "\n");
return;
}
server_.sendHeader("Location", "/files?path=/logs");
server_.send(303, "text/plain", "deleted\n");
}
void TBeamWeb::handleNotFound() {
server_.send(404, "text/plain", "not found\n");
}
void TBeamWeb::listDirectoryHtml(String& body, const char* path, uint8_t depth) {
File dir = SD.open(path, FILE_READ);
if (!dir) {
body += F("<li>open failed</li>");
return;
}
if (!dir.isDirectory()) {
body += F("<li>");
body += htmlEscape(path);
body += F(" ");
body += String((unsigned long)dir.size());
body += F(" bytes <a href='/download?path=");
body += urlEncode(path);
body += F("'>download</a></li>");
dir.close();
return;
}
File entry = dir.openNextFile();
while (entry) {
const String name = entry.name();
const int slash = name.lastIndexOf('/');
const String displayName = slash >= 0 ? name.substring(slash + 1) : (name.length() ? name : String("(unnamed)"));
String childPath;
if (name.startsWith("/")) {
childPath = name;
} else if (strcmp(path, "/") == 0) {
childPath = String("/") + name;
} else {
childPath = String(path) + "/" + name;
}
body += F("<li>");
if (entry.isDirectory()) {
body += F("<a href='/files?path=");
body += urlEncode(childPath);
body += F("'>");
body += htmlEscape(displayName);
body += F("/</a>");
if (depth > 0) {
body += F("<ul>");
listDirectoryHtml(body, childPath.c_str(), depth - 1);
body += F("</ul>");
}
} else {
body += htmlEscape(displayName);
body += F(" ");
body += String((unsigned long)entry.size());
body += F(" bytes <a href='/download?path=");
body += urlEncode(childPath);
body += F("'>download</a>");
if (config_.enableDelete) {
body += F(" <form method='post' action='/delete' style='display:inline'>");
body += F("<input type='hidden' name='path' value='");
body += htmlEscape(childPath);
body += F("'><button type='submit'>delete</button></form>");
}
}
body += F("</li>");
entry.close();
entry = dir.openNextFile();
}
dir.close();
}
bool TBeamWeb::normalizePath(const String& input, char* out, size_t outSize) const {
if (!out || outSize < 2 || input.length() == 0 || input.indexOf("..") >= 0) {
return false;
}
const int n = input[0] == '/' ? snprintf(out, outSize, "%s", input.c_str()) : snprintf(out, outSize, "/%s", input.c_str());
return n > 0 && (size_t)n < outSize;
}
String TBeamWeb::htmlEscape(const String& in) const {
String out;
out.reserve(in.length() + 8);
for (size_t i = 0; i < in.length(); ++i) {
const char c = in[i];
if (c == '&') out += F("&amp;");
else if (c == '<') out += F("&lt;");
else if (c == '>') out += F("&gt;");
else if (c == '"') out += F("&quot;");
else if (c == '\'') out += F("&#39;");
else out += c;
}
return out;
}
String TBeamWeb::urlEncode(const String& in) const {
String out;
char hex[4];
for (size_t i = 0; i < in.length(); ++i) {
const unsigned char c = (unsigned char)in[i];
if (isalnum(c) || c == '-' || c == '_' || c == '.' || c == '/' || c == '~') {
out += (char)c;
} else {
snprintf(hex, sizeof(hex), "%%%02X", c);
out += hex;
}
}
return out;
}
String TBeamWeb::contentTypeFor(const String& path) const {
if (path.endsWith(".html")) return "text/html";
if (path.endsWith(".csv")) return "text/csv";
if (path.endsWith(".json")) return "application/json";
if (path.endsWith(".txt") || path.endsWith(".log")) return "text/plain";
return "application/octet-stream";
}
void TBeamWeb::setError(const char* message) {
strlcpy(lastError_, message ? message : "", sizeof(lastError_));
}
void TBeamWeb::clearError() {
lastError_[0] = '\0';
}
void TBeamWeb::logf(const char* fmt, ...) {
if (!config_.enableSerialLog) {
return;
}
char msg[196];
va_list args;
va_start(args, fmt);
vsnprintf(msg, sizeof(msg), fmt, args);
va_end(args);
diagnostic_.printf("[%10lu][web] %s\r\n", (unsigned long)millis(), msg);
}
} // namespace tbeam

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#pragma once
#include <Arduino.h>
#include <WebServer.h>
#include <WiFi.h>
#include <TBeamStorage.h>
namespace tbeam {
struct WebConfig {
const char* ssidPrefix = "TBEAM";
const char* boardId = "NODE";
const char* password = nullptr;
uint8_t ipOctet = 25;
uint16_t port = 80;
bool enableDelete = true;
bool enableSerialLog = true;
};
class TBeamWeb {
public:
explicit TBeamWeb(Print& diagnostic = Serial);
bool begin(TBeamStorage& storage, const WebConfig& config = WebConfig{});
void update();
void stop();
bool ready() const { return ready_; }
const char* ssid() const { return ssid_; }
IPAddress ip() const { return ip_; }
const char* lastError() const { return lastError_; }
uint8_t stationCount() const;
private:
static TBeamWeb* active_;
static void handleRootThunk();
static void handleStatusThunk();
static void handleFilesThunk();
static void handleDownloadThunk();
static void handleDeleteThunk();
static void handleNotFoundThunk();
void handleRoot();
void handleStatus();
void handleFiles();
void handleDownload();
void handleDelete();
void handleNotFound();
void listDirectoryHtml(String& body, const char* path, uint8_t depth);
bool normalizePath(const String& input, char* out, size_t outSize) const;
String htmlEscape(const String& in) const;
String urlEncode(const String& in) const;
String contentTypeFor(const String& path) const;
void setError(const char* message);
void clearError();
void logf(const char* fmt, ...);
Print& diagnostic_;
WebServer server_;
TBeamStorage* storage_ = nullptr;
WebConfig config_{};
bool ready_ = false;
IPAddress ip_{0, 0, 0, 0};
char ssid_[40] = {};
char lastError_[128] = {};
};
} // namespace tbeam