481 lines
18 KiB
C
481 lines
18 KiB
C
/*
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* MTG RFID Companion - Registration web server (SoftAP)
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "esp_log.h"
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#include "esp_wifi.h"
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#include "esp_netif.h"
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#include "esp_http_server.h"
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#include "cJSON.h"
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#include "rfid_manager.h"
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#include "storage_manager.h"
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#include "scryfall_client.h"
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#include "web_server.h"
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static const char *TAG = "web";
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#define AP_SSID "MTG-Companion"
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#define AP_PASS ""
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#define HTTPD_BODY_MAX (2048)
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static const char SPA_PAGE[] =
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"<!DOCTYPE html><html><head><meta charset=\"utf-8\">"
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"<meta name=\"viewport\" content=\"width=device-width,initial-scale=1\">"
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"<title>MTG RFID Companion</title><style>"
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"body{font-family:system-ui,-apple-system,sans-serif;background:#141424;color:#eee;max-width:600px;margin:1.5em auto;padding:1em}"
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"h1{color:#ffd75a;margin-bottom:0.2em}h2{color:#ffd75a;font-size:1.15em;margin-top:1.2em}"
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".uid{font-size:1.5em;font-family:monospace;letter-spacing:2px;color:#7fd77f;word-break:break-all;background:#1e1e32;padding:.4em .6em;border-radius:6px;border:1px solid #333}"
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"input{font-size:1em;padding:.5em .8em;border-radius:6px;border:1px solid #555;background:#222;color:#eee;width:calc(100% - 1.6em);box-sizing:border-box}"
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"button,.btn{font-size:.95em;padding:.5em 1em;border-radius:6px;border:1px solid #555;background:#2a2a44;color:#eee;cursor:pointer;margin:.3em 0}"
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"button:hover,.btn:hover{background:#3a3a5c}"
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".btn-primary{background:#ffd75a;color:#111;border:none;font-weight:bold}"
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".btn-primary:hover{background:#ffe380}"
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".btn-del{background:#4a1e1e;color:#ff9999;border:1px solid #772222;font-size:.85em;padding:.4em .8em;cursor:pointer;border-radius:6px}"
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".btn-del:hover{background:#772222;color:#fff}"
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".sug{list-style:none;padding:0;margin:.4em 0;background:#1f1f33;border-radius:6px;border:1px solid #333}"
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".sug li{cursor:pointer;padding:.5em .8em;border-bottom:1px solid #333}"
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".sug li:hover{background:#2a2a48;color:#ffd75a}"
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".ok{color:#7fd77f}.bad{color:#ff6b6b}"
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".card-item{display:flex;align-items:center;gap:12px;background:#1e1e32;border:1px solid #33334c;border-radius:8px;padding:8px 12px;margin-bottom:8px}"
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".card-thumb{width:52px;height:52px;object-fit:cover;border-radius:6px;border:1px solid #444;background:#111;flex-shrink:0}"
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".card-info{flex:1;min-width:0}"
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".card-title{font-weight:bold;color:#ffd75a;font-size:1.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}"
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".card-uid{font-family:monospace;color:#7fd77f;font-size:.85em;margin-top:2px}"
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".card-none{color:#777;font-style:italic;padding:.8em 0}"
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".header-row{display:flex;align-items:center;justify-content:space-between}"
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"</style></head><body>"
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"<h1>MTG RFID Companion</h1>"
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"<p style=\"color:#aaa;margin-top:0\">Pair card sleeves and manage your scanned deck.</p>"
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"<div style=\"background:#1a1a2e;padding:1em;border-radius:8px;border:1px solid #2d2d48;margin-bottom:1.5em\">"
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"<h2 style=\"margin-top:0\">Last Scanned Tag</h2>"
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"<p class=\"uid\" id=\"uid\">waiting...</p>"
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"<h2>Pair With Card Name</h2>"
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"<input id=\"name\" placeholder=\"Type card name (e.g. Black Lotus)\" autocomplete=\"off\">"
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"<div style=\"margin-top:.6em\"><button class=\"btn-primary\" onclick=\"bindCard()\">Pair Card</button></div>"
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"<ul class=\"sug\" id=\"res\"></ul>"
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"<p id=\"status\"></p>"
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"</div>"
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"<div class=\"header-row\">"
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"<h2>Paired Cards (<span id=\"count\">0</span>)</h2>"
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"<button class=\"btn\" style=\"font-size:.8em\" onclick=\"loadCards()\">Refresh</button>"
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"</div>"
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"<div id=\"cards-box\"><p class=\"card-none\">Loading paired cards...</p></div>"
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"<script>"
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"var lastUid='';var suggestions=[];"
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"function esc(s){return s.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');}"
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"function show(cls,msg){document.getElementById('status').className=cls;document.getElementById('status').textContent=msg;}"
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"function poll(){fetch('/api/last_uid').then(function(r){return r.json();}).then(function(j){"
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" if(j.uid&&j.uid!==lastUid){lastUid=j.uid;document.getElementById('uid').textContent=j.uid;"
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" suggestions=[];document.getElementById('res').innerHTML='';show('','');}"
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"}).catch(function(){});setTimeout(poll,1000);}"
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"function autocomplete(){var q=document.getElementById('name').value;"
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" if(q.length<3){suggestions=[];document.getElementById('res').innerHTML='';return;}"
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" fetch('https://api.scryfall.com/cards/autocomplete?q='+encodeURIComponent(q))"
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" .then(function(r){return r.json();}).then(function(j){"
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" suggestions=(j.data||[]).slice(0,8);var h='';"
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" suggestions.forEach(function(n,i){h+='<li onclick=\"pick('+i+')\">'+esc(n)+'</li>';});"
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" document.getElementById('res').innerHTML=h;}).catch(function(){});}"
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"function pick(i){document.getElementById('name').value=suggestions[i];document.getElementById('res').innerHTML='';}"
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"document.getElementById('name').oninput=autocomplete;"
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"function bindCard(){var n=document.getElementById('name').value.trim();"
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" if(!lastUid||!n){show('bad','Scan a card and enter a name first');return;}"
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" show('','Pairing...');"
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" fetch('/api/bind',{method:'POST',headers:{'Content-Type':'application/x-www-form-urlencoded'},"
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" body:'uid='+encodeURIComponent(lastUid)+'&name='+encodeURIComponent(n)})"
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" .then(function(r){return r.json();}).then(function(j){"
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" if(j.ok){show('ok','Paired '+j.uid+' -> '+j.name);document.getElementById('name').value='';"
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" document.getElementById('res').innerHTML='';loadCards();}"
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" else{show('bad','Error: '+j.error);}}).catch(function(e){show('bad','Network: '+e);});}"
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"function unbindCard(u){if(!confirm('Unbind card '+u+'?'))return;"
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" fetch('/api/unbind',{method:'POST',headers:{'Content-Type':'application/x-www-form-urlencoded'},"
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" body:'uid='+encodeURIComponent(u)})"
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" .then(function(r){return r.json();}).then(function(j){"
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" if(j.ok){loadCards();show('ok','Unbound '+u);}"
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" else{show('bad','Error unbinding '+u);}}).catch(function(e){show('bad','Network: '+e);});}"
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"function loadCards(){"
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" fetch('/api/cards').then(function(r){return r.json();}).then(function(data){"
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" var box=document.getElementById('cards-box');var uids=Object.keys(data);"
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" document.getElementById('count').textContent=uids.length;"
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" if(uids.length===0){box.innerHTML='<p class=\"card-none\">No cards paired yet. Scan a card above to begin!</p>';return;}"
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" uids.sort(function(a,b){return data[a].localeCompare(data[b]);});"
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" var html='';"
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" uids.forEach(function(u){"
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" var nm=esc(data[u]);"
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" html+='<div class=\"card-item\">';"
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" html+='<img class=\"card-thumb\" src=\"/api/art?uid='+u+'\" alt=\"art\" onerror=\"this.style.display=\\'none\\'\">';"
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" html+='<div class=\"card-info\"><div class=\"card-title\">'+nm+'</div><div class=\"card-uid\">'+u+'</div></div>';"
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" html+='<button class=\"btn-del\" onclick=\"unbindCard(\\''+u+'\\')\">Unbind</button>';"
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" html+='</div>';"
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" });"
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" box.innerHTML=html;"
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" }).catch(function(e){document.getElementById('cards-box').innerHTML='<p class=\"bad\">Failed to load cards: '+e+'</p>';});"
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"}"
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"poll();loadCards();"
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"</script></body></html>";
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static httpd_handle_t s_server = NULL;
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static esp_err_t handle_root(httpd_req_t *req);
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static esp_err_t handle_last_uid(httpd_req_t *req);
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static esp_err_t handle_bind(httpd_req_t *req);
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static esp_err_t handle_cards(httpd_req_t *req);
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static esp_err_t handle_art(httpd_req_t *req);
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static esp_err_t handle_unbind(httpd_req_t *req);
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static const httpd_uri_t URI_ROOT = {
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.uri = "/", .method = HTTP_GET, .handler = handle_root, .user_ctx = NULL
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};
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static const httpd_uri_t URI_LAST_UID = {
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.uri = "/api/last_uid", .method = HTTP_GET, .handler = handle_last_uid, .user_ctx = NULL
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};
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static const httpd_uri_t URI_BIND = {
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.uri = "/api/bind", .method = HTTP_POST, .handler = handle_bind, .user_ctx = NULL
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};
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static const httpd_uri_t URI_CARDS = {
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.uri = "/api/cards", .method = HTTP_GET, .handler = handle_cards, .user_ctx = NULL
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};
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static const httpd_uri_t URI_ART = {
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.uri = "/api/art", .method = HTTP_GET, .handler = handle_art, .user_ctx = NULL
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};
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static const httpd_uri_t URI_UNBIND = {
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.uri = "/api/unbind", .method = HTTP_POST, .handler = handle_unbind, .user_ctx = NULL
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};
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static void send_json(httpd_req_t *req, int status, const char *body)
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{
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httpd_resp_set_status(req, status == 200 ? "200 OK" : "400 Bad Request");
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httpd_resp_set_type(req, "application/json");
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httpd_resp_send(req, body, -1);
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}
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static char *url_decode(const char *src)
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{
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if (!src) return NULL;
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char *out = strdup(src);
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if (!out) return NULL;
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char *dst = out;
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for (const char *s = src; *s; s++) {
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if (*s == '%' && s[1] && s[2]) {
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char hex[3] = { s[1], s[2], '\0' };
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*dst++ = (char)strtol(hex, NULL, 16);
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s += 2;
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} else if (*s == '+') {
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*dst++ = ' ';
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} else {
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*dst++ = *s;
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}
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}
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*dst = '\0';
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return out;
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}
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static char *get_form_param(const char *form, const char *key)
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{
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if (!form || !key) return NULL;
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size_t klen = strlen(key);
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const char *p = form;
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while (p && *p) {
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if (strncmp(p, key, klen) == 0 && p[klen] == '=') {
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const char *val_start = p + klen + 1;
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const char *val_end = strchr(val_start, '&');
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size_t vlen = val_end ? (size_t)(val_end - val_start) : strlen(val_start);
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char *raw = malloc(vlen + 1);
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if (!raw) return NULL;
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memcpy(raw, val_start, vlen);
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raw[vlen] = '\0';
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char *dec = url_decode(raw);
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free(raw);
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return dec;
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}
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p = strchr(p, '&');
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if (p) p++;
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}
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return NULL;
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}
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/* ------------------------------------------------------------------ */
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/* Endpoints */
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/* ------------------------------------------------------------------ */
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static esp_err_t handle_root(httpd_req_t *req)
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{
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httpd_resp_set_type(req, "text/html");
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httpd_resp_send(req, SPA_PAGE, (int)sizeof(SPA_PAGE) - 1);
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return ESP_OK;
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}
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static esp_err_t handle_last_uid(httpd_req_t *req)
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{
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char buf[80];
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const char *uid = rfid_manager_last_uid();
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if (uid == NULL || strlen(uid) == 0) {
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snprintf(buf, sizeof(buf), "{\"uid\":\"\"}\n");
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} else {
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snprintf(buf, sizeof(buf), "{\"uid\":\"%s\"}\n", uid);
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}
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send_json(req, 200, buf);
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return ESP_OK;
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}
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static esp_err_t handle_bind(httpd_req_t *req)
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{
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if (req->content_len <= 0 || req->content_len >= HTTPD_BODY_MAX) {
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send_json(req, 400, "{\"ok\":false,\"error\":\"bad body\"}");
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return ESP_OK;
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}
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char *form = malloc((size_t)req->content_len + 1);
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if (form == NULL) {
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send_json(req, 500, "{\"ok\":false,\"error\":\"no mem\"}");
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return ESP_OK;
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}
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int got = httpd_req_recv(req, form, (size_t)req->content_len);
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if (got != req->content_len) {
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free(form);
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send_json(req, 400, "{\"ok\":false,\"error\":\"short body\"}");
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return ESP_OK;
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}
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form[got] = '\0';
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char *uid = get_form_param(form, "uid");
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char *name = get_form_param(form, "name");
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free(form);
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if (uid) {
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size_t ulen = strlen(uid);
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while (ulen > 0 && (uid[ulen - 1] == ' ' || uid[ulen - 1] == '\r' || uid[ulen - 1] == '\n')) {
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uid[--ulen] = '\0';
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}
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}
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if (uid == NULL || name == NULL || strlen(uid) == 0 || strlen(name) == 0) {
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free(uid);
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free(name);
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send_json(req, 400, "{\"ok\":false,\"error\":\"missing uid or name\"}");
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return ESP_OK;
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}
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esp_err_t ret = storage_manager_bind_uid(uid, name);
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if (ret != ESP_OK) {
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free(uid);
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free(name);
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send_json(req, 400, "{\"ok\":false,\"error\":\"persist failed\"}");
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return ESP_OK;
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}
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scryfall_fetch_request(name, uid);
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char ok[192];
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snprintf(ok, sizeof(ok), "{\"ok\":true,\"uid\":\"%s\",\"name\":\"%s\"}\n", uid, name);
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ESP_LOGI(TAG, "paired UID %s -> %s", uid, name);
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send_json(req, 200, ok);
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free(uid);
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free(name);
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return ESP_OK;
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}
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static esp_err_t handle_cards(httpd_req_t *req)
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{
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char *text = NULL;
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size_t len = 0;
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if (storage_read_text(STORAGE_MAPPINGS, &text, &len) == ESP_OK && text != NULL) {
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httpd_resp_set_type(req, "application/json");
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httpd_resp_send(req, text, (ssize_t)len);
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free(text);
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} else {
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send_json(req, 200, "{}\n");
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}
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return ESP_OK;
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}
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static esp_err_t handle_art(httpd_req_t *req)
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{
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char query[64] = {0};
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char uid[32] = {0};
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if (httpd_req_get_url_query_str(req, query, sizeof(query)) == ESP_OK) {
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httpd_query_key_value(query, "uid", uid, sizeof(uid));
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}
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if (uid[0] == '\0') {
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httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing uid");
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return ESP_OK;
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}
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char path[64];
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snprintf(path, sizeof(path), STORAGE_CARDS_DIR "/%s.jpg", uid);
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FILE *f = fopen(path, "rb");
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if (!f) {
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httpd_resp_send_err(req, HTTPD_404_NOT_FOUND, "Art not found");
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return ESP_OK;
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}
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httpd_resp_set_type(req, "image/jpeg");
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httpd_resp_set_hdr(req, "Cache-Control", "public, max-age=86400");
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char chunk[1024];
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size_t n = 0;
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while ((n = fread(chunk, 1, sizeof(chunk), f)) > 0) {
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if (httpd_resp_send_chunk(req, chunk, (ssize_t)n) != ESP_OK) {
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fclose(f);
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return ESP_FAIL;
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}
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}
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fclose(f);
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httpd_resp_send_chunk(req, NULL, 0);
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return ESP_OK;
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}
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static esp_err_t handle_unbind(httpd_req_t *req)
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{
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if (req->content_len <= 0 || req->content_len >= HTTPD_BODY_MAX) {
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send_json(req, 400, "{\"ok\":false,\"error\":\"bad body\"}");
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return ESP_OK;
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}
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char *form = malloc((size_t)req->content_len + 1);
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if (form == NULL) {
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send_json(req, 500, "{\"ok\":false,\"error\":\"no mem\"}");
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return ESP_OK;
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}
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int got = httpd_req_recv(req, form, (size_t)req->content_len);
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if (got != req->content_len) {
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free(form);
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send_json(req, 400, "{\"ok\":false,\"error\":\"short body\"}");
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return ESP_OK;
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}
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form[got] = '\0';
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char *uid = get_form_param(form, "uid");
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free(form);
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if (uid) {
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size_t ulen = strlen(uid);
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while (ulen > 0 && (uid[ulen - 1] == ' ' || uid[ulen - 1] == '\r' || uid[ulen - 1] == '\n')) {
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uid[--ulen] = '\0';
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}
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}
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if (uid == NULL || strlen(uid) == 0) {
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free(uid);
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send_json(req, 400, "{\"ok\":false,\"error\":\"missing uid\"}");
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return ESP_OK;
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}
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esp_err_t ret = storage_manager_unbind_uid(uid);
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if (ret != ESP_OK) {
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free(uid);
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send_json(req, 404, "{\"ok\":false,\"error\":\"uid not found\"}");
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return ESP_OK;
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}
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char ok[128];
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snprintf(ok, sizeof(ok), "{\"ok\":true,\"uid\":\"%s\"}\n", uid);
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ESP_LOGI(TAG, "unbound UID %s via web", uid);
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send_json(req, 200, ok);
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free(uid);
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return ESP_OK;
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}
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/* ------------------------------------------------------------------ */
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/* SoftAP + server */
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/* ------------------------------------------------------------------ */
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esp_err_t web_server_start(void)
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{
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if (s_server != NULL) {
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return ESP_OK;
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}
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/* AP netif must exist before wifi start */
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esp_netif_t *ap = esp_netif_get_handle_from_ifkey("WIFI_AP_DEF");
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if (ap == NULL) {
|
|
ap = esp_netif_create_default_wifi_ap();
|
|
if (ap == NULL) {
|
|
ESP_LOGE(TAG, "failed to create AP netif");
|
|
return ESP_FAIL;
|
|
}
|
|
}
|
|
|
|
esp_err_t ret = esp_wifi_stop(); /* safe even if not started */
|
|
if (ret != ESP_OK && ret != ESP_ERR_WIFI_NOT_STARTED) {
|
|
ESP_LOGE(TAG, "wifi stop failed: %s", esp_err_to_name(ret));
|
|
return ret;
|
|
}
|
|
|
|
ret = esp_wifi_set_mode(WIFI_MODE_APSTA);
|
|
if (ret != ESP_OK) {
|
|
ESP_LOGE(TAG, "set mode APSTA failed: %s", esp_err_to_name(ret));
|
|
return ret;
|
|
}
|
|
|
|
wifi_config_t wifi_cfg = {
|
|
.ap = {
|
|
.ssid_len = sizeof(AP_SSID) - 1,
|
|
.max_connection = 4,
|
|
.authmode = (AP_PASS[0] == '\0') ? WIFI_AUTH_OPEN : WIFI_AUTH_WPA2_PSK,
|
|
},
|
|
};
|
|
strncpy((char *)wifi_cfg.ap.ssid, AP_SSID, sizeof(wifi_cfg.ap.ssid) - 1);
|
|
if (AP_PASS[0] != '\0') {
|
|
strncpy((char *)wifi_cfg.ap.password, AP_PASS, sizeof(wifi_cfg.ap.password) - 1);
|
|
}
|
|
ret = esp_wifi_set_config(WIFI_IF_AP, &wifi_cfg);
|
|
if (ret != ESP_OK) {
|
|
ESP_LOGE(TAG, "set AP config failed: %s", esp_err_to_name(ret));
|
|
return ret;
|
|
}
|
|
|
|
esp_netif_ip_info_t ip_info = {
|
|
.ip = { .addr = ESP_IP4TOADDR(192, 168, 4, 1) },
|
|
.netmask = { .addr = ESP_IP4TOADDR(255, 255, 255, 0) },
|
|
.gw = { .addr = ESP_IP4TOADDR(192, 168, 4, 1) },
|
|
};
|
|
/* The AP netif has DHCP running by default; stop it before assigning a
|
|
* static IP, otherwise esp_netif_set_ip_info fails with
|
|
* ESP_ERR_ESP_NETIF_DHCP_NOT_STOPPED. */
|
|
esp_netif_dhcps_stop(ap);
|
|
ret = esp_netif_set_ip_info(ap, &ip_info);
|
|
if (ret != ESP_OK) {
|
|
ESP_LOGE(TAG, "set AP IP failed: %s", esp_err_to_name(ret));
|
|
return ret;
|
|
}
|
|
|
|
ret = esp_wifi_start();
|
|
if (ret != ESP_OK) {
|
|
ESP_LOGE(TAG, "wifi start (APSTA) failed: %s", esp_err_to_name(ret));
|
|
return ret;
|
|
}
|
|
|
|
(void)esp_netif_dhcps_start(ap); /* harmless if someone else started it */
|
|
|
|
httpd_config_t config = HTTPD_DEFAULT_CONFIG();
|
|
config.stack_size = 6 * 1024;
|
|
config.max_uri_handlers = 12;
|
|
config.lru_purge_enable = true;
|
|
config.keep_alive_enable = true;
|
|
config.max_open_sockets = 4;
|
|
|
|
ret = httpd_start(&s_server, &config);
|
|
if (ret != ESP_OK) {
|
|
ESP_LOGE(TAG, "httpd_start failed: %s", esp_err_to_name(ret));
|
|
return ret;
|
|
}
|
|
|
|
ESP_ERROR_CHECK(httpd_register_uri_handler(s_server, &URI_ROOT));
|
|
ESP_ERROR_CHECK(httpd_register_uri_handler(s_server, &URI_LAST_UID));
|
|
ESP_ERROR_CHECK(httpd_register_uri_handler(s_server, &URI_BIND));
|
|
ESP_ERROR_CHECK(httpd_register_uri_handler(s_server, &URI_CARDS));
|
|
ESP_ERROR_CHECK(httpd_register_uri_handler(s_server, &URI_ART));
|
|
ESP_ERROR_CHECK(httpd_register_uri_handler(s_server, &URI_UNBIND));
|
|
|
|
ESP_LOGI(TAG, "SoftAP '%s' at 192.168.4.1, web server ready", AP_SSID);
|
|
return ESP_OK;
|
|
}
|
|
|
|
bool web_server_is_running(void)
|
|
{
|
|
return s_server != NULL;
|
|
} |