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/* snac - A simple, minimalistic ActivityPub instance */
/* copyright (c) 2022 grunfink - MIT license */
#include "xs.h"
#include "xs_io.h"
#include "xs_json.h"
#include "xs_glob.h"
#include "snac.h"
#include <sys/stat.h>
int db_upgrade(d_char **error)
{
int ret = 1;
int changed = 0;
double f = 0.0;
for (;;) {
char *layout = xs_dict_get(srv_config, "layout");
double nf;
f = nf = xs_number_get(layout);
if (!(f < db_layout))
break;
srv_log(xs_fmt("db_upgrade %1.1lf < %1.1lf", f, db_layout));
if (f < 2.0) {
*error = xs_fmt("ERROR: unsupported old disk layout %1.1lf\n", f);
ret = 0;
break;
}
else
if (f < 2.1) {
xs *dir = xs_fmt("%s/object", srv_basedir);
mkdir(dir, 0755);
nf = 2.1;
}
else
if (f < 2.2) {
xs *users = user_list();
char *p, *v;
p = users;
while (xs_list_iter(&p, &v)) {
snac snac;
if (user_open(&snac, v)) {
xs *spec = xs_fmt("%s/actors/" "*.json", snac.basedir);
xs *list = xs_glob(spec, 0, 0);
char *g, *fn;
g = list;
while (xs_list_iter(&g, &fn)) {
xs *l = xs_split(fn, "/");
char *b = xs_list_get(l, -1);
xs *dir = xs_fmt("%s/object/%c%c", srv_basedir, b[0], b[1]);
xs *nfn = xs_fmt("%s/%s", dir, b);
mkdir(dir, 0755);
rename(fn, nfn);
}
xs *odir = xs_fmt("%s/actors", snac.basedir);
rmdir(odir);
user_free(&snac);
}
}
nf = 2.2;
}
if (f < nf) {
f = nf;
xs *nv = xs_number_new(f);
srv_config = xs_dict_set(srv_config, "layout", nv);
srv_log(xs_fmt("db_upgrade converted to version %1.1lf", f));
changed++;
}
else
break;
}
if (f > db_layout) {
*error = xs_fmt("ERROR: unknown future version %lf\n", f);
ret = 0;
}
if (changed) {
/* upgrade the configuration file */
xs *fn = xs_fmt("%s/server.json", srv_basedir);
FILE *f;
if ((f = fopen(fn, "w")) != NULL) {
xs *j = xs_json_dumps_pp(srv_config, 4);
fwrite(j, strlen(j), 1, f);
fclose(f);
srv_log(xs_fmt("upgraded db %s after %d changes", fn, changed));
}
else
ret = 0;
}
return ret;
}
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