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/*
* uemis-downloader.c
*
* Copyright (c) Dirk Hohndel <dirk@hohndel.org>
* released under GPL2
*
* very (VERY) loosely based on the algorithms found in Java code by Fabian Gast <fgast@only640k.net>
* which was released under the BSD-STYLE BEER WARE LICENSE
* I believe that I only used the information about HOW to do this (download data from the Uemis
* Zurich) but did not actually use any of his copyrighted code, therefore the license under which
* he released his code does not apply to this new implementation in C
*/
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "gettext.h"
#include "libdivecomputer.h"
#include "uemis.h"
#include "divelist.h"
#define ERR_FS_ALMOST_FULL QT_TRANSLATE_NOOP("gettextFromC", "Uemis Zurich: File System is almost full\nDisconnect/reconnect the dive computer\nand click \'Retry\'")
#define ERR_FS_FULL QT_TRANSLATE_NOOP("gettextFromC", "Uemis Zurich: File System is full\nDisconnect/reconnect the dive computer\nand try again")
#define ERR_FS_SHORT_WRITE QT_TRANSLATE_NOOP("gettextFromC", "Short write to req.txt file\nIs the Uemis Zurich plugged in correctly?")
#define BUFLEN 2048
#define NUM_PARAM_BUFS 10
#if UEMIS_DEBUG & 64 /* we are reading from a copy of the filesystem, not the device - no need to wait */
#define UEMIS_TIMEOUT 50 /* 50ns */
#define UEMIS_LONG_TIMEOUT 500 /* 500ns */
#define UEMIS_MAX_TIMEOUT 2000 /* 2ms */
#else
#define UEMIS_TIMEOUT 50000 /* 50ms */
#define UEMIS_LONG_TIMEOUT 500000 /* 500ms */
#define UEMIS_MAX_TIMEOUT 2000000 /* 2s */
#endif
#ifdef UEMIS_DEBUG
#define debugfile stderr
#endif
static char *param_buff[NUM_PARAM_BUFS];
static char *reqtxt_path;
static int reqtxt_file;
static int filenr;
static int number_of_files;
static char *mbuf = NULL;
static int mbuf_size = 0;
static int nr_divespots = -1;
/* helper function to parse the Uemis data structures */
static void uemis_ts(char *buffer, void *_when)
{
struct tm tm;
timestamp_t *when = _when;
memset(&tm, 0, sizeof(tm));
sscanf(buffer, "%d-%d-%dT%d:%d:%d",
&tm.tm_year, &tm.tm_mon, &tm.tm_mday,
&tm.tm_hour, &tm.tm_min, &tm.tm_sec);
tm.tm_mon -= 1;
tm.tm_year -= 1900;
*when = utc_mktime(&tm);
}
/* float minutes */
static void uemis_duration(char *buffer, duration_t *duration)
{
duration->seconds = rint(ascii_strtod(buffer, NULL) * 60);
}
/* int cm */
static void uemis_depth(char *buffer, depth_t *depth)
{
depth->mm = atoi(buffer) * 10;
}
static void uemis_get_index(char *buffer, int *idx)
{
*idx = atoi(buffer);
}
/* space separated */
static void uemis_add_string(const char *buffer, char **text)
{
/* do nothing if this is an empty buffer (Uemis sometimes returns a single
* space for empty buffers) */
if (!buffer || !*buffer || (*buffer == ' ' && *(buffer + 1) == '\0'))
return;
if (!*text) {
*text = strdup(buffer);
} else {
char *buf = malloc(strlen(buffer) + strlen(*text) + 2);
strcpy(buf, *text);
strcat(buf, " ");
strcat(buf, buffer);
free(*text);
*text = buf;
}
}
/* still unclear if it ever reports lbs */
static void uemis_get_weight(char *buffer, weightsystem_t *weight, int diveid)
{
weight->weight.grams = uemis_get_weight_unit(diveid) ?
lbs_to_grams(ascii_strtod(buffer, NULL)) :
ascii_strtod(buffer, NULL) * 1000;
weight->description = strdup(translate("gettextFromC", "unknown"));
}
static struct dive *uemis_start_dive(uint32_t deviceid)
{
struct dive *dive = alloc_dive();
dive->downloaded = true;
dive->dc.model = strdup("Uemis Zurich");
dive->dc.deviceid = deviceid;
return dive;
}
/* send text to the importer progress bar */
static void uemis_info(const char *fmt, ...)
{
static char buffer[256];
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, ap);
va_end(ap);
progress_bar_text = buffer;
}
static long bytes_available(int file)
{
long result;
long now = lseek(file, 0, SEEK_CUR);
result = lseek(file, 0, SEEK_END);
lseek(file, now, SEEK_SET);
if (now == -1 || result == -1)
return 0;
return result;
}
static int number_of_file(char *path)
{
int count = 0;
#ifdef WIN32
struct _wdirent *entry;
_WDIR *dirp = (_WDIR *)subsurface_opendir(path);
#else
struct dirent *entry;
DIR *dirp = (DIR *)subsurface_opendir(path);
#endif
while (dirp) {
#ifdef WIN32
entry = _wreaddir(dirp);
if (!entry)
break;
#else
entry = readdir(dirp);
if (!entry)
break;
if (entry->d_type == DT_REG) /* If the entry is a regular file */
#endif
count++;
}
#ifdef WIN32
_wclosedir(dirp);
#else
closedir(dirp);
#endif
return count;
}
static char *build_filename(const char *path, const char *name)
{
int len = strlen(path) + strlen(name) + 2;
char *buf = malloc(len);
#if WIN32
snprintf(buf, len, "%s\\%s", path, name);
#else
snprintf(buf, len, "%s/%s", path, name);
#endif
return buf;
}
/* Check if there's a req.txt file and get the starting filenr from it.
* Test for the maximum number of ANS files (I believe this is always
* 4000 but in case there are differences depending on firmware, this
* code is easy enough */
static bool uemis_init(const char *path)
{
char *ans_path;
int i;
if (!path)
return false;
/* let's check if this is indeed a Uemis DC */
reqtxt_path = build_filename(path, "req.txt");
reqtxt_file = subsurface_open(reqtxt_path, O_RDONLY, 0666);
if (!reqtxt_file) {
#if UEMIS_DEBUG & 1
fprintf(debugfile, ":EE req.txt can't be opened\n");
#endif
return false;
}
if (bytes_available(reqtxt_file) > 5) {
char tmp[6];
read(reqtxt_file, tmp, 5);
tmp[5] = '\0';
#if UEMIS_DEBUG & 2
fprintf(debugfile, "::r req.txt \"%s\"\n", tmp);
#endif
if (sscanf(tmp + 1, "%d", &filenr) != 1)
return false;
} else {
filenr = 0;
#if UEMIS_DEBUG & 2
fprintf(debugfile, "::r req.txt skipped as there were fewer than 5 bytes\n");
#endif
}
close(reqtxt_file);
/* It would be nice if we could simply go back to the first set of
* ANS files. But with a FAT filesystem that isn't possible */
ans_path = build_filename(path, "ANS");
number_of_files = number_of_file(ans_path);
free(ans_path);
/* initialize the array in which we collect the answers */
for (i = 0; i < NUM_PARAM_BUFS; i++)
param_buff[i] = "";
return true;
}
static void str_append_with_delim(char *s, char *t)
{
int len = strlen(s);
snprintf(s + len, BUFLEN - len, "%s{", t);
}
/* The communication protocoll with the DC is truly funky.
* After you write your request to the req.txt file you call this function.
* It writes the number of the next ANS file at the beginning of the req.txt
* file (prefixed by 'n' or 'r') and then again at the very end of it, after
* the full request (this time without the prefix).
* Then it syncs (not needed on Windows) and closes the file. */
static void trigger_response(int file, char *command, int nr, long tailpos)
{
char fl[10];
snprintf(fl, 8, "%s%04d", command, nr);
#if UEMIS_DEBUG & 4
fprintf(debugfile, ":tr %s (after seeks)\n", fl);
#endif
if (lseek(file, 0, SEEK_SET) == -1)
goto fs_error;
if (write(file, fl, strlen(fl)) == -1)
goto fs_error;
if (lseek(file, tailpos, SEEK_SET) == -1)
goto fs_error;
if (write(file, fl + 1, strlen(fl + 1)) == -1)
goto fs_error;
#ifndef WIN32
fsync(file);
#endif
fs_error:
close(file);
}
static char *next_token(char **buf)
{
char *q, *p = strchr(*buf, '{');
if (p)
*p = '\0';
else
p = *buf + strlen(*buf) - 1;
q = *buf;
*buf = p + 1;
return q;
}
/* poor man's tokenizer that understands a quoted delimter ('{') */
static char *next_segment(char *buf, int *offset, int size)
{
int i = *offset;
int seg_size;
bool done = false;
char *segment;
while (!done) {
if (i < size) {
if (i < size - 1 && buf[i] == '\\' &&
(buf[i + 1] == '\\' || buf[i + 1] == '{'))
memcpy(buf + i, buf + i + 1, size - i - 1);
else if (buf[i] == '{')
done = true;
i++;
} else {
done = true;
}
}
seg_size = i - *offset - 1;
if (seg_size < 0)
seg_size = 0;
segment = malloc(seg_size + 1);
memcpy(segment, buf + *offset, seg_size);
segment[seg_size] = '\0';
*offset = i;
return segment;
}
/* a dynamically growing buffer to store the potentially massive responses.
* The binary data block can be more than 100k in size (base64 encoded) */
static void buffer_add(char **buffer, int *buffer_size, char *buf)
{
if (!buf)
return;
if (!*buffer) {
*buffer = strdup(buf);
*buffer_size = strlen(*buffer) + 1;
} else {
*buffer_size += strlen(buf);
*buffer = realloc(*buffer, *buffer_size);
strcat(*buffer, buf);
}
#if UEMIS_DEBUG & 16
fprintf(debugfile, "added \"%s\" to buffer - new length %d\n", buf, *buffer_size);
#endif
}
/* are there more ANS files we can check? */
static bool next_file(int max)
{
if (filenr >= max)
return false;
filenr++;
return true;
}
static char *first_object_id_val(char *buf)
{
char *object, *bufend;
if (!buf)
return NULL;
bufend = buf + strlen(buf);
object = strstr(buf, "object_id");
if (object && object + 14 < bufend) {
/* get the value */
char tmp[10];
char *p = object + 14;
char *t = tmp;
#if UEMIS_DEBUG & 2
char debugbuf[50];
strncpy(debugbuf, object, 49);
debugbuf[49] = '\0';
fprintf(debugfile, "buf |%s|\n", debugbuf);
#endif
while (p < bufend && *p != '{' && t < tmp + 9)
*t++ = *p++;
if (*p == '{') {
*t = '\0';
return strdup(tmp);
}
}
return NULL;
}
/* ultra-simplistic; it doesn't deal with the case when the object_id is
* split across two chunks. It also doesn't deal with the discrepancy between
* object_id and dive number as understood by the dive computer */
static void show_progress(char *buf, const char *what)
{
char *val = first_object_id_val(buf);
if (val) {
/* let the user know what we are working on */
#if UEMIS_DEBUG & 2
fprintf(debugfile, "reading %s %s\n", what, val);
#endif
uemis_info(translate("gettextFromC", "Reading %s %s"), what, val);
free(val);
}
}
static void uemis_increased_timeout(int *timeout)
{
if (*timeout < UEMIS_MAX_TIMEOUT)
*timeout += UEMIS_LONG_TIMEOUT;
usleep(*timeout);
}
/* send a request to the dive computer and collect the answer */
static bool uemis_get_answer(const char *path, char *request, int n_param_in,
int n_param_out, const char **error_text)
{
int i = 0, file_length;
char sb[BUFLEN];
char fl[13];
char tmp[101];
const char *what = translate("gettextFromC", "data");
bool searching = true;
bool assembling_mbuf = false;
bool ismulti = false;
bool found_answer = false;
bool more_files = true;
bool answer_in_mbuf = false;
char *ans_path;
int ans_file;
int timeout = UEMIS_LONG_TIMEOUT;
reqtxt_file = subsurface_open(reqtxt_path, O_RDWR | O_CREAT, 0666);
snprintf(sb, BUFLEN, "n%04d12345678", filenr);
str_append_with_delim(sb, request);
for (i = 0; i < n_param_in; i++)
str_append_with_delim(sb, param_buff[i]);
if (!strcmp(request, "getDivelogs") || !strcmp(request, "getDeviceData") || !strcmp(request, "getDirectory") ||
!strcmp(request, "getDivespot") || !strcmp(request, "getDive")) {
answer_in_mbuf = true;
str_append_with_delim(sb, "");
if (!strcmp(request, "getDivelogs"))
what = translate("gettextFromC", "divelog entry id");
else if (!strcmp(request, "getDivespot"))
what = translate("gettextFromC", "divespot data id");
else if (!strcmp(request, "getDive"))
what = translate("gettextFromC", "more data dive id");
}
str_append_with_delim(sb, "");
file_length = strlen(sb);
snprintf(fl, 10, "%08d", file_length - 13);
memcpy(sb + 5, fl, strlen(fl));
#if UEMIS_DEBUG & 1
fprintf(debugfile, "::w req.txt \"%s\"\n", sb);
#endif
if (write(reqtxt_file, sb, strlen(sb)) != strlen(sb)) {
*error_text = translate("gettextFromC", ERR_FS_SHORT_WRITE);
return false;
}
if (!next_file(number_of_files)) {
*error_text = translate("gettextFromC", ERR_FS_FULL);
more_files = false;
}
trigger_response(reqtxt_file, "n", filenr, file_length);
usleep(timeout);
mbuf = NULL;
mbuf_size = 0;
while (searching || assembling_mbuf) {
if (import_thread_cancelled)
return false;
progress_bar_fraction = filenr / 4000.0;
snprintf(fl, 13, "ANS%d.TXT", filenr - 1);
ans_path = build_filename(build_filename(path, "ANS"), fl);
ans_file = subsurface_open(ans_path, O_RDONLY, 0666);
read(ans_file, tmp, 100);
close(ans_file);
#if UEMIS_DEBUG & 8
tmp[100] = '\0';
fprintf(debugfile, "::t %s \"%s\"\n", ans_path, tmp);
#elif UEMIS_DEBUG & 4
char pbuf[4];
pbuf[0] = tmp[0];
pbuf[1] = tmp[1];
pbuf[2] = tmp[2];
pbuf[3] = 0;
fprintf(debugfile, "::t %s \"%s...\"\n", ans_path, pbuf);
#endif
free(ans_path);
if (tmp[0] == '1') {
searching = false;
if (tmp[1] == 'm') {
assembling_mbuf = true;
ismulti = true;
}
if (tmp[2] == 'e')
assembling_mbuf = false;
if (assembling_mbuf) {
if (!next_file(number_of_files)) {
*error_text = translate("gettextFromC", ERR_FS_FULL);
more_files = false;
assembling_mbuf = false;
}
reqtxt_file = subsurface_open(reqtxt_path, O_RDWR | O_CREAT, 0666);
trigger_response(reqtxt_file, "n", filenr, file_length);
}
} else {
if (!next_file(number_of_files - 1)) {
*error_text = translate("gettextFromC", ERR_FS_FULL);
more_files = false;
assembling_mbuf = false;
searching = false;
}
reqtxt_file = subsurface_open(reqtxt_path, O_RDWR | O_CREAT, 0666);
trigger_response(reqtxt_file, "r", filenr, file_length);
uemis_increased_timeout(&timeout);
}
if (ismulti && more_files && tmp[0] == '1') {
int size;
snprintf(fl, 13, "ANS%d.TXT", assembling_mbuf ? filenr - 2 : filenr - 1);
ans_path = build_filename(build_filename(path, "ANS"), fl);
ans_file = subsurface_open(ans_path, O_RDONLY, 0666);
size = bytes_available(ans_file);
if (size > 3) {
char *buf;
int r;
if (lseek(ans_file, 3, SEEK_CUR) == -1)
goto fs_error;
buf = malloc(size - 2);
if ((r = read(ans_file, buf, size - 3)) != size - 3) {
free(buf);
goto fs_error;
}
buf[r] = '\0';
buffer_add(&mbuf, &mbuf_size, buf);
show_progress(buf, what);
free(buf);
param_buff[3]++;
}
close(ans_file);
timeout = UEMIS_TIMEOUT;
usleep(UEMIS_TIMEOUT);
}
}
if (more_files) {
int size = 0, j = 0;
char *buf = NULL;
if (!ismulti) {
snprintf(fl, 13, "ANS%d.TXT", filenr - 1);
ans_path = build_filename(build_filename(path, "ANS"), fl);
ans_file = subsurface_open(ans_path, O_RDONLY, 0666);
size = bytes_available(ans_file);
if (size > 3) {
int r;
if (lseek(ans_file, 3, SEEK_CUR) == -1)
goto fs_error;
buf = malloc(size - 2);
if ((r = read(ans_file, buf, size - 3)) != size - 3) {
free(buf);
goto fs_error;
}
buf[r] = '\0';
buffer_add(&mbuf, &mbuf_size, buf);
show_progress(buf, what);
#if UEMIS_DEBUG & 8
fprintf(debugfile, "::r %s \"%s\"\n", ans_path, buf);
#endif
}
size -= 3;
close(ans_file);
free(ans_path);
} else {
ismulti = false;
}
#if UEMIS_DEBUG & 8
fprintf(debugfile, ":r: %s\n", buf);
#endif
if (!answer_in_mbuf)
for (i = 0; i < n_param_out && j < size; i++)
param_buff[i] = next_segment(buf, &j, size);
found_answer = true;
free(buf);
}
#if UEMIS_DEBUG & 1
for (i = 0; i < n_param_out; i++)
fprintf(debugfile, "::: %d: %s\n", i, param_buff[i]);
#endif
return found_answer;
fs_error:
close (ans_file);
return false;
}
static void parse_divespot(char *buf)
{
char *bp = buf + 1;
char *tp = next_token(&bp);
char *tag, *type, *val;
char locationstring[1024] = "";
int divespot, len;
double latitude = 0.0, longitude = 0.0;
if (strcmp(tp, "divespot"))
return;
do
tag = next_token(&bp);
while (*tag && strcmp(tag, "object_id"));
if (!*tag)
return;
next_token(&bp);
val = next_token(&bp);
divespot = atoi(val);
do {
tag = next_token(&bp);
type = next_token(&bp);
val = next_token(&bp);
if (!strcmp(type, "string") && *val && strcmp(val, " ")) {
len = strlen(locationstring);
snprintf(locationstring + len, sizeof(locationstring) - len,
"%s%s", len ? ", " : "", val);
} else if (!strcmp(type, "float")) {
if (!strcmp(tag, "longitude"))
longitude = ascii_strtod(val, NULL);
else if (!strcmp(tag, "latitude"))
latitude = ascii_strtod(val, NULL);
}
} while (tag && *tag);
uemis_set_divelocation(divespot, locationstring, latitude, longitude);
}
static void track_divespot(char *val, int diveid, char **location, degrees_t *latitude, degrees_t *longitude)
{
int id = atoi(val);
if (id >= 0 && id > nr_divespots)
nr_divespots = id;
uemis_mark_divelocation(diveid, id, location, latitude, longitude);
return;
}
static char *suit[] = { "", QT_TRANSLATE_NOOP("gettextFromC", "wetsuit"), QT_TRANSLATE_NOOP("gettextFromC", "semidry"), QT_TRANSLATE_NOOP("gettextFromC", "drysuit") };
static char *suit_type[] = { "", QT_TRANSLATE_NOOP("gettextFromC", "shorty"), QT_TRANSLATE_NOOP("gettextFromC", "vest"), QT_TRANSLATE_NOOP("gettextFromC", "long john"), QT_TRANSLATE_NOOP("gettextFromC", "jacket"), QT_TRANSLATE_NOOP("gettextFromC", "full suit"), QT_TRANSLATE_NOOP("gettextFromC", "2 pcs full suit") };
static char *suit_thickness[] = { "", "0.5-2mm", "2-3mm", "3-5mm", "5-7mm", "8mm+", QT_TRANSLATE_NOOP("gettextFromC", "membrane") };
static void parse_tag(struct dive *dive, char *tag, char *val)
{
/* we can ignore computer_id, water and gas as those are redundant
* with the binary data and would just get overwritten */
if (!strcmp(tag, "date")) {
uemis_ts(val, &dive->when);
} else if (!strcmp(tag, "duration")) {
uemis_duration(val, &dive->dc.duration);
} else if (!strcmp(tag, "depth")) {
uemis_depth(val, &dive->dc.maxdepth);
} else if (!strcmp(tag, "file_content")) {
uemis_parse_divelog_binary(val, dive);
} else if (!strcmp(tag, "altitude")) {
uemis_get_index(val, &dive->dc.surface_pressure.mbar);
} else if (!strcmp(tag, "f32Weight")) {
uemis_get_weight(val, &dive->weightsystem[0], dive->dc.diveid);
} else if (!strcmp(tag, "notes")) {
uemis_add_string(val, &dive->notes);
} else if (!strcmp(tag, "u8DiveSuit")) {
if (*suit[atoi(val)])
uemis_add_string(translate("gettextFromC", suit[atoi(val)]), &dive->suit);
} else if (!strcmp(tag, "u8DiveSuitType")) {
if (*suit_type[atoi(val)])
uemis_add_string(translate("gettextFromC", suit_type[atoi(val)]), &dive->suit);
} else if (!strcmp(tag, "u8SuitThickness")) {
if (*suit_thickness[atoi(val)])
uemis_add_string(translate("gettextFromC", suit_thickness[atoi(val)]), &dive->suit);
}
}
/* This function is called for both divelog and dive information that we get
* from the SDA (what an insane design, btw). The object_id in the divelog
* matches the logfilenr in the dive information (which has its own, often
* different object_id) - we use this as the diveid.
* We create the dive when parsing the divelog and then later, when we parse
* the dive information we locate the already created dive via its diveid.
* Most things just get parsed and converted into our internal data structures,
* but the dive location API is even more crazy. We just get an id that is an
* index into yet another data store that we read out later. In order to
* correctly populate the location and gps data from that we need to remember
* the adresses of those fields for every dive that references the divespot. */
static bool process_raw_buffer(uint32_t deviceid, char *inbuf, char **max_divenr, bool keep_number, int *for_dive)
{
char *buf = strdup(inbuf);
char *tp, *bp, *tag, *type, *val;
bool done = false;
int inbuflen = strlen(inbuf);
char *endptr = buf + inbuflen;
bool log = false;
char *sections[10];
int s, nr_sections = 0;
struct dive *dive = NULL;
#if UEMIS_DEBUG & 4
fprintf(debugfile, "p_r_b %s\n", inbuf);
#endif
if (for_dive)
*for_dive = -1;
bp = buf + 1;
tp = next_token(&bp);
if (strcmp(tp, "divelog") == 0) {
/* this is a divelog */
log = true;
tp = next_token(&bp);
/* is it a valid entry or nothing ? */
if (strcmp(tp, "1.0") != 0 || strstr(inbuf, "divelog{1.0{{{{")) {
free(buf);
return false;
}
} else if (strcmp(tp, "dive") == 0) {
/* this is dive detail */
tp = next_token(&bp);
if (strcmp(tp, "1.0") != 0) {
free(buf);
return false;
}
} else {
/* don't understand the buffer */
free(buf);
return false;
}
if (log) {
dive = uemis_start_dive(deviceid);
} else {
/* remember, we don't know if this is the right entry,
* so first test if this is even a valid entry */
if (strstr(inbuf, "deleted{bool{true")) {
#if UEMIS_DEBUG & 4
fprintf(debugfile, "p_r_b entry deleted\n");
#endif
/* oops, this one isn't valid, suggest to try the previous one */
return false;
}
}
while (!done) {
/* the valid buffer ends with a series of delimiters */
if (bp >= endptr - 2 || !strcmp(bp, "{{"))
break;
tag = next_token(&bp);
/* we also end if we get an empty tag */
if (*tag == '\0')
break;
for (s = 0; s < nr_sections; s++)
if (!strcmp(tag, sections[s])) {
tag = next_token(&bp);
break;
}
type = next_token(&bp);
if (!strcmp(type, "1.0")) {
/* this tells us the sections that will follow; the tag here
* is of the format dive-<section> */
sections[nr_sections] = strchr(tag, '-') + 1;
#if UEMIS_DEBUG & 4
fprintf(debugfile, "Expect to find section %s\n", sections[nr_sections]);
#endif
if (nr_sections < sizeof(sections) - 1)
nr_sections++;
continue;
}
val = next_token(&bp);
if (log && !strcmp(tag, "object_id")) {
free(*max_divenr);
*max_divenr = strdup(val);
dive->dc.diveid = atoi(val);
if (keep_number)
dive->number = atoi(val);
} else if (!log && !strcmp(tag, "logfilenr")) {
/* this one tells us which dive we are adding data to */
dive = get_dive_by_uemis_diveid(atoi(val), deviceid);
if (for_dive)
*for_dive = atoi(val);
} else if (!log && dive && !strcmp(tag, "divespot_id")) {
track_divespot(val, dive->dc.diveid, &dive->location, &dive->latitude, &dive->longitude);
} else if (dive) {
parse_tag(dive, tag, val);
}
if (log && !strcmp(tag, "file_content"))
done = true;
/* done with one dive (got the file_content tag), but there could be more:
* a '{' indicates the end of the record - but we need to see another "{{"
* later in the buffer to know that the next record is complete (it could
* be a short read because of some error */
if (done && ++bp < endptr && *bp != '{' && strstr(bp, "{{")) {
done = false;
record_dive(dive);
mark_divelist_changed(true);
dive = uemis_start_dive(deviceid);
}
}
if (log) {
if (dive->dc.diveid) {
record_dive(dive);
mark_divelist_changed(true);
} else { /* partial dive */
free(dive);
free(buf);
return false;
}
}
free(buf);
return true;
}
static char *uemis_get_divenr(char *deviceidstr)
{
uint32_t deviceid, maxdiveid = 0;
int i;
char divenr[10];
deviceid = atoi(deviceidstr);
struct dive *d;
for_each_dive (i, d) {
struct divecomputer *dc;
for_each_dc(d, dc) {
if (dc->model && !strcmp(dc->model, "Uemis Zurich") &&
(dc->deviceid == 0 || dc->deviceid == 0x7fffffff || dc->deviceid == deviceid) &&
dc->diveid > maxdiveid)
maxdiveid = dc->diveid;
}
}
snprintf(divenr, 10, "%d", maxdiveid);
return strdup(divenr);
}
const char *do_uemis_import(const char *mountpath, short force_download)
{
char *newmax = NULL;
int start, end = -2, i, offset;
uint32_t deviceidnr;
char objectid[10];
char *deviceid = NULL;
const char *result = NULL;
char *endptr;
bool success, keep_number = false, once = true;
if (dive_table.nr == 0)
keep_number = true;
uemis_info(translate("gettextFromC", "Init Communication"));
if (!uemis_init(mountpath))
return translate("gettextFromC", "Uemis init failed");
if (!uemis_get_answer(mountpath, "getDeviceId", 0, 1, &result))
goto bail;
deviceid = strdup(param_buff[0]);
deviceidnr = atoi(deviceid);
/* the answer from the DeviceId call becomes the input parameter for getDeviceData */
if (!uemis_get_answer(mountpath, "getDeviceData", 1, 0, &result))
goto bail;
/* param_buff[0] is still valid */
if (!uemis_get_answer(mountpath, "initSession", 1, 6, &result))
goto bail;
uemis_info(translate("gettextFromC", "Start download"));
if (!uemis_get_answer(mountpath, "processSync", 0, 2, &result))
goto bail;
/* before starting the long download, check if user pressed cancel */
if (import_thread_cancelled)
goto bail;
param_buff[1] = "notempty";
/* if we have an empty divelist or force it, then we start downloading from the
* first dive on the Uemis; otherwise check which was the last dive downloaded */
if (!force_download && dive_table.nr > 0)
newmax = uemis_get_divenr(deviceid);
else
newmax = strdup("0");
start = atoi(newmax);
for (;;) {
#if UEMIS_DEBUG & 4
fprintf(debugfile, "d_u_i inner loop start %d end %d newmax %s\n", start, end, newmax);
#endif
param_buff[2] = newmax;
param_buff[3] = 0;
success = uemis_get_answer(mountpath, "getDivelogs", 3, 0, &result);
/* process the buffer we have assembled */
if (mbuf)
if (!process_raw_buffer(deviceidnr, mbuf, &newmax, keep_number, NULL)) {
/* if no dives were downloaded, mark end appropriately */
if (end == -2)
end = start - 1;
success = false;
}
if (once) {
char *t = first_object_id_val(mbuf);
if (t && atoi(t) > start)
start = atoi(t);
free(t);
once = false;
}
#if UEMIS_DEBUG & 4
fprintf(debugfile, "d_u_i after download and parse start %d end %d newmax %s\n", start, end, newmax);
#endif
/* if the user clicked cancel, exit gracefully */
if (import_thread_cancelled)
goto bail;
/* if we got an error or got nothing back, stop trying */
if (!success || !param_buff[3])
break;
/* finally, if the memory is getting too full, maybe we better stop, too */
if (progress_bar_fraction > 0.85) {
result = translate("gettextFromC", ERR_FS_ALMOST_FULL);
break;
}
/* clean up mbuf */
endptr = strstr(mbuf, "{{{");
if (endptr)
*(endptr + 2) = '\0';
/* last object_id we parsed */
sscanf(newmax, "%d", &end);
}
if (end == -2 && sscanf(newmax, "%d", &end) != 1)
end = start;
#if UEMIS_DEBUG & 2
fprintf(debugfile, "done: read from object_id %d to %d\n", start, end);
#endif
free(newmax);
offset = 0;
for (i = start; i <= end; i++) {
snprintf(objectid, sizeof(objectid), "%d", i + offset);
param_buff[2] = objectid;
#if UEMIS_DEBUG & 2
fprintf(debugfile, "getDive %d, object_id %s\n", i, objectid);
#endif
/* there is no way I have found to directly get the dive information
* for dive #i as the object_id and logfilenr can be different in the
* getDive call; so we get the first one, compare the actual divenr
* with the one that we wanted, calculate the offset and try again.
* What an insane design... */
success = uemis_get_answer(mountpath, "getDive", 3, 0, &result);
if (mbuf) {
int divenr;
(void)process_raw_buffer(deviceidnr, mbuf, &newmax, false, &divenr);
#if UEMIS_DEBUG & 2
fprintf(debugfile, "got dive %d, looking for dive %d\n", divenr, i);
#endif
if (divenr != i) {
if (divenr == -1) {
offset--;
} else {
offset += i - divenr;
}
#if UEMIS_DEBUG & 2
fprintf(debugfile, " -> trying again with offset %d\n", offset);
#endif
i = start - 1;
if (i + offset < 0)
break;
continue;
}
}
if (!success || import_thread_cancelled)
break;
}
success = true;
for (i = 0; i <= nr_divespots; i++) {
char divespotnr[10];
snprintf(divespotnr, sizeof(divespotnr), "%d", i);
param_buff[2] = divespotnr;
#if UEMIS_DEBUG & 2
fprintf(debugfile, "getDivespot %d\n", i);
#endif
success = uemis_get_answer(mountpath, "getDivespot", 3, 0, &result);
if (mbuf)
parse_divespot(mbuf);
}
bail:
(void)uemis_get_answer(mountpath, "terminateSync", 0, 3, &result);
if (!strcmp(param_buff[0], "error")) {
if (!strcmp(param_buff[2], "Out of Memory"))
result = translate("gettextFromC", ERR_FS_FULL);
else
result = param_buff[2];
}
free(deviceid);
return result;
}
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