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#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>
#include "apk_adb.h"
#include "apk_applet.h"
struct conv_ctx {
struct apk_ctx *ac;
struct adb_obj pkgs;
struct adb dbi;
struct apk_sign_ctx sctx;
int found;
};
static void convert_index(struct conv_ctx *ctx, struct apk_istream *is)
{
struct adb_obj pkginfo;
apk_blob_t token = APK_BLOB_STR("\n"), l;
int i;
adb_wo_alloca(&pkginfo, &schema_pkginfo, &ctx->dbi);
while (!APK_BLOB_IS_NULL(l = apk_istream_get_delim(is, token))) {
if (l.len < 2) {
adb_wa_append_obj(&ctx->pkgs, &pkginfo);
continue;
}
i = adb_pkg_field_index(l.ptr[0]);
if (i > 0) adb_wo_pkginfo(&pkginfo, i, APK_BLOB_PTR_LEN(l.ptr+2, l.len-2));
}
}
static int load_apkindex(void *sctx, const struct apk_file_info *fi,
struct apk_istream *is)
{
struct conv_ctx *ctx = sctx;
int r;
r = apk_sign_ctx_process_file(&ctx->sctx, fi, is);
if (r <= 0) return r;
if (strcmp(fi->name, "APKINDEX") == 0) {
ctx->found = 1;
convert_index(ctx, is);
apk_istream_close(is);
}
return 0;
}
static int load_index(struct conv_ctx *ctx, struct apk_istream *is)
{
struct apk_id_cache *idc = apk_ctx_get_id_cache(ctx->ac);
int r = 0;
if (IS_ERR_OR_NULL(is)) return is ? PTR_ERR(is) : -EINVAL;
ctx->found = 0;
apk_sign_ctx_init(&ctx->sctx, APK_SIGN_VERIFY, NULL, apk_ctx_fd_keys(ctx->ac), ctx->ac->flags & APK_ALLOW_UNTRUSTED);
r = apk_tar_parse(
apk_istream_gunzip_mpart(is, apk_sign_ctx_mpart_cb, &ctx->sctx),
load_apkindex, ctx, idc);
apk_sign_ctx_free(&ctx->sctx);
if (r >= 0 && ctx->found == 0) r = -ENOMSG;
return r;
}
static int conv_main(void *pctx, struct apk_ctx *ac, struct apk_string_array *args)
{
char **arg;
struct conv_ctx *ctx = pctx;
struct adb_trust *trust = apk_ctx_get_trust(ac);
struct adb_obj ndx;
int r;
ctx->ac = ac;
adb_w_init_alloca(&ctx->dbi, ADB_SCHEMA_INDEX, 1000);
adb_wo_alloca(&ndx, &schema_index, &ctx->dbi);
adb_wo_alloca(&ctx->pkgs, &schema_pkginfo_array, &ctx->dbi);
foreach_array_item(arg, args) {
r = load_index(ctx, apk_istream_from_url(*arg, apk_ctx_since(ac, 0)));
if (r) goto err;
fprintf(stderr, "%s: %u packages\n", *arg, adb_ra_num(&ctx->pkgs));
}
adb_wo_obj(&ndx, ADBI_NDX_PACKAGES, &ctx->pkgs);
adb_w_rootobj(&ndx);
r = adb_c_create(apk_ostream_to_fd(STDOUT_FILENO), &ctx->dbi, trust);
err:
adb_free(&ctx->dbi);
return r;
}
static struct apk_applet apk_convndx = {
.name = "convndx",
.context_size = sizeof(struct conv_ctx),
.optgroups = { &optgroup_global, &optgroup_signing },
.main = conv_main,
};
APK_DEFINE_APPLET(apk_convndx);
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