stuff

.gitignore

@@ -1 +1,10 @@
 *pyc
+
+CMakeCache.txt
+CMakeFiles
+Makefile
+cmake_install.cmake
+install_manifest.txt
+
+*.o
+hf-terminal

terminal/CMakeLists.txt

@@ -0,0 +1,6 @@
+project(hf-terminal)
+
+add_executable(hf-terminal main.c tts.c base64.c ldap.c)
+set(CMAKE_C_FLAGS "-std=c99")
+
+target_link_libraries(hf-terminal nfc m curl)

terminal/base64.c

@@ -0,0 +1,150 @@
+#include <math.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+/*
+static char encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+                                'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+                                'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
+                                'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+                                'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+                                'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+                                'w', 'x', 'y', 'z', '0', '1', '2', '3',
+                                '4', '5', '6', '7', '8', '9', '+', '/'};
+static char *decoding_table = NULL;
+static int mod_table[] = {0, 2, 1};
+
+
+char *base64_encode(const char *data,
+                    size_t input_length,
+                    size_t *output_length) {
+
+    printf("%04x\n", *(int *)(data + 3));
+
+    *output_length = (size_t) (4.0 * ceil((double) input_length / 3.0));
+
+    char *encoded_data = malloc(*output_length + 1);
+    if (encoded_data == NULL) return NULL;
+
+    for (int i = 0, j = 0; i < input_length;) {
+
+        uint32_t octet_a = i < input_length ? data[i++] : 0;
+        uint32_t octet_b = i < input_length ? data[i++] : 0;
+        uint32_t octet_c = i < input_length ? data[i++] : 0;
+
+        uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
+
+        encoded_data[j++] = encoding_table[(triple >> (3 * 6)) & 0x3F];
+        encoded_data[j++] = encoding_table[(triple >> (2 * 6)) & 0x3F];
+        encoded_data[j++] = encoding_table[(triple >> (1 * 6)) & 0x3F];
+        encoded_data[j++] = encoding_table[(triple >> (0 * 6)) & 0x3F];
+    }
+
+    for (int i = 0; i < mod_table[input_length % 3]; i++)
+        encoded_data[*output_length - 1 - i] = '=';
+
+    encoded_data[*output_length] = 0;
+
+    return encoded_data;
+}
+
+void build_decoding_table();
+
+char *base64_decode(const char *data,
+                    size_t input_length,
+                    size_t *output_length) {
+
+    if (decoding_table == NULL) build_decoding_table();
+
+    if (input_length % 4 != 0) return NULL;
+
+    *output_length = input_length / 4 * 3;
+    if (data[input_length - 1] == '=') (*output_length)--;
+    if (data[input_length - 2] == '=') (*output_length)--;
+
+    char *decoded_data = malloc(*output_length);
+    if (decoded_data == NULL) return NULL;
+
+    for (int i = 0, j = 0; i < input_length;) {
+
+        uint32_t sextet_a = data[i] == '=' ? 0 & i++ : decoding_table[data[i++]];
+        uint32_t sextet_b = data[i] == '=' ? 0 & i++ : decoding_table[data[i++]];
+        uint32_t sextet_c = data[i] == '=' ? 0 & i++ : decoding_table[data[i++]];
+        uint32_t sextet_d = data[i] == '=' ? 0 & i++ : decoding_table[data[i++]];
+
+        uint32_t triple = (sextet_a << 3 * 6)
+                        + (sextet_b << 2 * 6)
+                        + (sextet_c << 1 * 6)
+                        + (sextet_d << 0 * 6);
+
+        if (j < *output_length) decoded_data[j++] = (triple >> 2 * 8) & 0xFF;
+        if (j < *output_length) decoded_data[j++] = (triple >> 1 * 8) & 0xFF;
+        if (j < *output_length) decoded_data[j++] = (triple >> 0 * 8) & 0xFF;
+    }
+
+    return decoded_data;
+}
+
+
+void build_decoding_table() {
+
+    decoding_table = malloc(256);
+
+    for (int i = 0; i < 0x40; i++)
+        decoding_table[encoding_table[i]] = i;
+}
+
+
+void base64_cleanup() {
+    free(decoding_table);
+}
+
+*/
+
+static char *b64_lut = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ 
+void bin_to_b64(char *out, char* in, unsigned int in_length)
+{
+    unsigned int complete_quads = in_length / 3;
+    unsigned int additional = in_length - complete_quads * 3;
+ 
+    for (unsigned int i = 0; i < complete_quads; i++)
+    {
+        char a, b, c;
+        a = in[i * 3]; b = in[i * 3 + 1]; c = in[i * 3 + 2];
+ 
+        out[i * 4    ] = b64_lut[ (a & 0b11111100) >> 2                            ];
+        out[i * 4 + 1] = b64_lut[((a & 0b00000011) << 4 ) | ((b & 0b11110000) >> 4)];
+        out[i * 4 + 2] = b64_lut[((b & 0b00001111) << 2)  | ((c & 0b11000000) >> 6)];
+        out[i * 4 + 3] = b64_lut[  c & 0b00111111                                  ];
+    }
+ 
+    unsigned int final_length = complete_quads * 4;
+ 
+    switch (additional)
+    {
+        case 1:
+        {
+            char a = in[complete_quads * 3];
+            out[complete_quads * 4    ] = b64_lut[(a & 0b11111100) >> 2];
+            out[complete_quads * 4 + 1] = b64_lut[(a & 0b00000011) << 4];
+            out[complete_quads * 4 + 2] = '=';
+            out[complete_quads * 4 + 3] = '=';
+            final_length += 4;
+            break;
+        }
+        case 2:
+        {
+            char a, b;
+            a = in[complete_quads * 3]; b = in[complete_quads * 3 + 1];
+            out[complete_quads * 4    ] = b64_lut[ (a & 0b11111100) >> 2                           ];
+            out[complete_quads * 4 + 1] = b64_lut[((a & 0b00000011) << 4) | ((b & 0b11110000) >> 4)];
+            out[complete_quads * 4 + 2] = b64_lut[((b & 0b00001111) << 2)                          ];
+            out[complete_quads * 4 + 3] = '=';
+            final_length += 4;
+            break;
+        }
+    }
+    out[final_length] = 0;
+}
+ 

terminal/base64.h

@@ -0,0 +1,7 @@
+#ifndef __BASE64_H__
+#define __BASE64_H__
+
+//char *base64_encode(const char *data, size_t input_length, size_t *output_length);
+void bin_to_b64(char *out, char* in, unsigned int in_length);
+
+#endif

terminal/ldap.c

@@ -0,0 +1,9 @@
+int ldap_dn_by_mifare(char *MifareID, char *DNOut, int *DNLength)
+{
+    // TODO: actually implement thid. tkd?
+
+    strncpy(DNOut, "q3k", *DNLength);
+    *DNLength = strlen("q3k");
+
+    return 1;
+}

terminal/ldap.h

@@ -0,0 +1,6 @@
+#ifndef __LDAP_H__
+#define __LDAP_H__
+
+int ldap_dn_by_mifare(char *MifareID, char *DNOut, int *DNLength);
+
+#endif

terminal/main.c

@@ -0,0 +1,104 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <nfc/nfc.h>
+#include <nfc/nfc-types.h>
+
+#include "tts.h"
+#include "ldap.h"
+
+static nfc_device_t *g_NFCDevice = NULL;
+
+const nfc_modulation_t g_NFCModulations[5] = {
+    { .nmt = NMT_ISO14443A, .nbr = NBR_106 },
+    { .nmt = NMT_ISO14443B, .nbr = NBR_106 },
+    { .nmt = NMT_FELICA, .nbr = NBR_212 },
+    { .nmt = NMT_FELICA, .nbr = NBR_424 },
+    { .nmt = NMT_JEWEL, .nbr = NBR_106 },
+};
+const size_t g_NFCModulationCount = 5;
+
+void poll_nfc(void)
+{
+    nfc_target_t Target;
+    bool Result = nfc_initiator_poll_target(g_NFCDevice, g_NFCModulations, g_NFCModulationCount, 20, 2, &Target);
+
+    if (Result)
+    {
+        if (Target.nm.nmt != NMT_ISO14443A)
+            return;
+
+        if (Target.nti.nai.szUidLen != 4)
+            return;
+
+        printf("Scanned Mifare %x.\n", *(int *)Target.nti.nai.abtUid);
+
+        char MifareID[5];
+        sprintf(MifareID, "%04x", *(int *)Target.nti.nai.abtUid);
+
+        char DN[128];
+        int DNLength = 128;
+        int LDAPResult = ldap_dn_by_mifare(MifareID, DN, &DNLength);
+
+        if (LDAPResult > 0)
+        {
+            if (LDAPResult == 1)
+            {
+                tts_speak("Nieznana karta.");
+                return;
+            }
+            else
+            {
+                tts_speak("Nieznany błąd.");
+                return;
+            }
+        }
+        printf("This appears to be %s.\n", DN);
+
+        char WelcomeMessage[200];
+        sprintf(WelcomeMessage, "Cześć %s.", DN);
+        tts_speak(WelcomeMessage);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    nfc_device_desc_t *Devices;
+
+    size_t NumDevices;
+    Devices = (nfc_device_desc_t *) malloc(10 * sizeof(*Devices));
+    nfc_list_devices(Devices, 10, &NumDevices);
+
+    if (NumDevices == 0)
+    {
+        fprintf(stderr, "Error: No NFC device found.\n");
+        return 1;
+    }
+
+    if (NumDevices > 1)
+    {
+        fprintf(stderr, "Error: More than one NFC device found.\n");
+        return 1;
+    }
+
+    g_NFCDevice = nfc_connect(&Devices[0]);
+
+    if (g_NFCDevice == NULL)
+    {
+        fprintf(stderr, "Error: Could not connect to NFC device.\n");
+        return 1;
+    }
+
+    nfc_initiator_init(g_NFCDevice);
+    printf("Connected to NFC device.\n");
+
+    //tts_speak("Lodówka zainicjalizowana.");
+    tts_speak("Zażółć gęślą jaźń.");
+
+    while (1)
+    {
+        poll_nfc();
+    }
+
+    return 0;
+}

terminal/tts.c

@@ -0,0 +1,47 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <curl/curl.h>
+
+#include "base64.h"
+
+static char *g_IvonaURL = "http://www.ivona.com/online/fileSentence.php?l=en&e=0&v=1&t=%s";
+
+size_t tts_write_data(void *ptr, size_t size, size_t nmemb, FILE *stream)
+{
+    int written = fwrite(ptr, size, nmemb, stream);
+    return written;
+}
+
+void tts_speak(char *Text)
+{
+    int B64OutputLength;
+    char *B64Output = (char *)malloc(strlen(Text) * 2);
+    bin_to_b64(B64Output, Text, strlen(Text));
+
+    char *URL = (char *)malloc(strlen(B64Output) + strlen(g_IvonaURL));
+    sprintf(URL, g_IvonaURL, B64Output);
+    printf("URL: %s\n", URL);
+    
+    CURL *Curl;
+    CURLcode Result;
+    FILE *File;
+
+    File = fopen("/tmp/hf-tts.mp3", "w");
+
+    Curl = curl_easy_init();
+    curl_easy_setopt(Curl, CURLOPT_URL, URL);
+    curl_easy_setopt(Curl, CURLOPT_WRITEFUNCTION, tts_write_data);
+    curl_easy_setopt(Curl, CURLOPT_WRITEDATA, File);
+    curl_easy_setopt(Curl, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTP|CURLPROTO_HTTPS);
+    curl_easy_setopt(Curl, CURLOPT_FOLLOWLOCATION, 1);
+    Result = curl_easy_perform(Curl);
+    curl_easy_cleanup(Curl);
+
+    fclose(File);
+
+    system("mpg123 -q -2 /tmp/hf-tts.mp3");
+
+    free((void *)URL);
+    free((void *)B64Output);
+}

terminal/tts.h

@@ -0,0 +1,6 @@
+#ifndef __TTS_H__
+#define __TTS_H__
+
+void tts_speak(char *Text);
+
+#endif