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#include "config.h"
#include <errno.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "fs.h"
#include "log.h"
#include "parcini.h"
typedef enum kv_handler_result (*ini_keyvalue_handler_fn)(struct parcini_line *, void *dst);
enum config_key_result {
CONFIG_KEY_NONE,
CONFIG_KEY_OK,
CONFIG_KEY_BADKEY,
CONFIG_KEY_BADVALUE,
};
enum kv_handler_result {
KV_HANDLER_OK,
KV_HANDLER_NOMATCH,
KV_HANDLER_BADVALUE,
};
static int
site_config_images_keyvalue_handler(struct parcini_line *parsed,
struct image_config *iconfig)
{
int res = CONFIG_KEY_BADKEY;
if (!strcmp(parsed->key, "strip")) {
res = parcini_value_handle(&parsed->value, PARCINI_VALUE_BOOLEAN,
&iconfig->strip)
? CONFIG_KEY_OK
: CONFIG_KEY_BADVALUE;
}
if (!strcmp(parsed->key, "quality")) {
long int temp;
res = parcini_value_handle(&parsed->value, PARCINI_VALUE_INTEGER,
&temp)
? CONFIG_KEY_OK
: CONFIG_KEY_BADVALUE;
if (res == CONFIG_KEY_OK) {
if (temp > 100 || temp < 0) {
res = CONFIG_KEY_BADVALUE;
} else {
iconfig->quality = (uint8_t)temp;
}
}
}
if (!strcmp(parsed->key, "max_width")) {
long int temp;
res = parcini_value_handle(&parsed->value, PARCINI_VALUE_INTEGER,
&temp)
? CONFIG_KEY_OK
: CONFIG_KEY_BADVALUE;
if (res == CONFIG_KEY_OK) {
if (temp < 1) {
res = CONFIG_KEY_BADVALUE;
} else {
iconfig->max_width = (size_t)temp;
}
}
}
if (!strcmp(parsed->key, "max_height")) {
long int temp;
res = parcini_value_handle(&parsed->value, PARCINI_VALUE_INTEGER,
&temp)
? CONFIG_KEY_OK
: CONFIG_KEY_BADVALUE;
if (res == CONFIG_KEY_OK) {
if (temp < 1) {
res = CONFIG_KEY_BADVALUE;
} else {
iconfig->max_height = (size_t)temp;
}
}
}
if (!strcmp(parsed->key, "smart_resize")) {
res = parcini_value_handle(&parsed->value, PARCINI_VALUE_BOOLEAN,
&iconfig->smart_resize)
? CONFIG_KEY_OK
: CONFIG_KEY_BADVALUE;
}
if (!strcmp(parsed->key, "blur")) {
long int temp;
res = parcini_value_handle(&parsed->value, PARCINI_VALUE_INTEGER,
&temp)
? CONFIG_KEY_OK
: CONFIG_KEY_BADVALUE;
if (res == CONFIG_KEY_OK) {
if (temp < -100 || temp > 100) {
res = CONFIG_KEY_BADVALUE;
} else {
iconfig->blur = (double)temp / 100;
}
}
}
return res;
}
#define MATCHSK(s, k, p) !strcmp(s, p->section) && !strcmp(k, p->key)
static enum kv_handler_result
site_config_keyvalue_handler(struct parcini_line *parsed, void *dst)
{
struct site_config *config = dst;
enum config_key_result subconf = CONFIG_KEY_NONE;
if (!strcmp(parsed->section, "images")) {
subconf = site_config_images_keyvalue_handler(parsed, &config->images);
} else if (!strcmp(parsed->section, "thumbnails")) {
subconf = site_config_images_keyvalue_handler(parsed,
&config->thumbnails);
}
switch (subconf) {
case CONFIG_KEY_OK:
return KV_HANDLER_OK;
case CONFIG_KEY_BADKEY:
goto out;
case CONFIG_KEY_BADVALUE:
return KV_HANDLER_BADVALUE;
default:
break;
}
if (MATCHSK("", "title", parsed)) {
free(config->title);
return parcini_value_handle(&parsed->value, PARCINI_VALUE_STRING,
&config->title)
? KV_HANDLER_OK
: KV_HANDLER_BADVALUE;
}
if (MATCHSK("", "base_url", parsed)) {
free(config->base_url);
return parcini_value_handle(&parsed->value, PARCINI_VALUE_STRING,
&config->base_url)
? KV_HANDLER_OK
: KV_HANDLER_BADVALUE;
}
out:
return KV_HANDLER_NOMATCH;
}
static enum kv_handler_result
album_config_keyvalue_handler(struct parcini_line *parsed, void *dst)
{
struct album_config *config = dst;
if (MATCHSK("", "title", parsed)) {
free(config->title);
return parcini_value_handle(&parsed->value, PARCINI_VALUE_STRING,
&config->title)
? KV_HANDLER_OK
: KV_HANDLER_BADVALUE;
}
if (MATCHSK("", "desc", parsed)) {
free(config->desc);
return parcini_value_handle(&parsed->value, PARCINI_VALUE_STRING,
&config->desc)
? KV_HANDLER_OK
: KV_HANDLER_BADVALUE;
}
return KV_HANDLER_NOMATCH;
}
static bool
ini_handler(const char *fpath, ini_keyvalue_handler_fn kvhandler,
void *dst)
{
struct parcini_line parsed;
enum parcini_result res;
parcini_t *parser = parcini_from_file(fpath);
if (parser == NULL) {
log_printl_errno(LOG_FATAL, "Couldn't open %s", fpath);
return false;
}
bool ok = true;
enum kv_handler_result hres;
while ((res = parcini_parse_next_line(parser, &parsed)) != PARCINI_EOF
&& ok) {
switch (res) {
case PARCINI_KEYVALUE:
if ((hres = kvhandler(&parsed, dst)) == KV_HANDLER_BADVALUE) {
log_printl(LOG_ERROR, "Error parsing %s:%ld, bad value for key"
"%s",
fpath, parsed.lineno, parsed.key);
ok = false;
} else if (hres == KV_HANDLER_NOMATCH) {
log_printl(LOG_ERROR,
"Warning: key '%s' in section '%s' is not a valid "
"section-key combination for %s, ignoring.",
parsed.key, parsed.section, fpath);
}
continue;
case PARCINI_EMPTY_LINE:
case PARCINI_SECTION:
continue;
case PARCINI_STREAM_ERROR:
case PARCINI_MEMORY_ERROR:
log_printl_errno(LOG_FATAL, "Error reading %s", fpath);
ok = false;
break;
default:
log_printl(LOG_FATAL, "Error parsing %s:%ld", fpath, parsed.lineno);
ok = false;
break;
}
}
parcini_destroy(parser);
return ok;
}
bool
site_config_read_ini(const char *wdir, struct site_config *config)
{
if (wdir == NULL) {
return ini_handler(SITE_CONF, site_config_keyvalue_handler,
config);
}
char *fpath = joinpath(wdir, SITE_CONF);
bool ok = ini_handler(fpath, site_config_keyvalue_handler, config);
free(fpath);
return ok;
}
bool
album_config_read_ini(const char *fpath, struct album_config *config)
{
bool ok = ini_handler(fpath, album_config_keyvalue_handler, config);
return ok;
}
struct site_config *
site_config_init(void)
{
struct site_config *config = calloc(1, sizeof *config);
if (config != NULL) {
config->images = (struct image_config){
.strip = true,
.quality = 80,
.max_width = 3000,
.max_height = 2000,
.smart_resize = true,
.blur = 0,
};
config->thumbnails = (struct image_config){
.strip = true,
.quality = 60,
.max_width = 400,
.max_height = 270,
.smart_resize = true,
.blur = 0.25,
};
}
return config;
}
struct album_config *
album_config_init(void)
{
struct album_config *config = calloc(1, sizeof *config);
return config;
}
void
site_config_destroy(struct site_config *config)
{
free(config->title);
free(config->base_url);
free(config);
}
void
album_config_destroy(struct album_config *config)
{
free(config->title);
free(config->desc);
free(config);
}
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