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#include "uv_zip.h"
#include <assert.h>
#include <errno.h>
#include <string.h>
void uv__zip_open_error(uv_zip_t *zip, int error) {
assert(zip);
zip->result = -error;
if (zip->message) {
free((char *)zip->message);
zip->message = NULL;
}
const zip_uint64_t size = zip_error_to_str(NULL, 0, error, errno) + 1;
zip->message = malloc(size);
zip_error_to_str((char *)zip->message, size, error, errno);
}
void uv__zip_store_error(uv_zip_t *zip, const char *message) {
assert(zip);
if (zip->message) {
free((char *)zip->message);
zip->message = NULL;
}
const unsigned long length = strlen(message) + 1;
zip->message = malloc(length);
strncpy((char *)zip->message, message, length);
}
void uv__zip_error(uv_zip_t *zip) {
assert(zip);
int error;
zip_error_get(zip->archive, &error, NULL);
zip->result = -error;
uv__zip_store_error(zip, zip_strerror(zip->archive));
}
void uv__zip_file_error(uv_zip_t *zip) {
assert(zip);
int error;
zip_file_error_get(zip->file, &error, NULL);
zip->result = -error;
uv__zip_store_error(zip, zip_file_strerror(zip->file));
}
void uv__zip_work_open(uv_work_t *req) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip);
assert(!zip->archive);
int error;
zip->archive = zip_open(zip->path, zip->flags, &error);
if (!zip->archive) {
uv__zip_open_error(zip, error);
} else {
zip->result = 0;
}
}
void uv__zip_work_fdopen(uv_work_t *req) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip);
assert(!zip->archive);
// extract the fd
uv_file fd = *(uv_file *)zip->path;
free((uv_file *)zip->path);
zip->path = NULL;
int error;
zip->archive = zip_fdopen(fd, zip->flags, &error);
if (!zip->archive) {
uv__zip_open_error(zip, error);
} else {
zip->result = 0;
}
}
void uv__zip_work_stat(uv_work_t *req) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip);
assert(zip->archive);
if (!zip->stat) {
zip->stat = malloc(sizeof(struct zip_stat));
zip_stat_init(zip->stat);
}
if (0 != zip_stat(zip->archive, zip->path, zip->flags, zip->stat)) {
uv__zip_error(zip);
}
}
void uv__zip_work_fopen(uv_work_t *req) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip);
assert(zip->archive);
zip->file = zip_fopen(zip->archive, zip->path, zip->flags);
if (!zip->file) {
uv__zip_error(zip);
}
}
void uv__zip_work_fread(uv_work_t *req) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip);
assert(zip->file);
assert(zip->buf);
zip->result = zip_fread(zip->file, zip->buf->base, zip->buf->len);
if (zip->result < 0) {
uv__zip_file_error(zip);
}
}
void uv__zip_work_fclose(uv_work_t *req) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip);
assert(zip->file);
zip->result = zip_fclose(zip->file);
if (zip->result != 0) {
uv__zip_file_error(zip);
} else {
zip->file = NULL;
}
}
void uv__zip_work_discard(uv_work_t *req) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip->archive);
zip_discard(zip->archive);
zip->archive = NULL;
zip->result = 0;
}
void uv__zip_after_work(uv_work_t *req, int status) {
uv_zip_t *zip = (uv_zip_t *)req->data;
assert(zip);
if (zip->cb) {
zip->cb(zip);
}
}
void uv_zip_init(uv_zip_t *zip) {
assert(zip);
zip->work.data = zip;
zip->message = NULL;
zip->stat = NULL;
uv_zip_cleanup(zip);
}
void uv_zip_cleanup(uv_zip_t *zip) {
assert(zip);
zip->data = NULL;
zip->flags = 0;
zip->result = 0;
zip->path = NULL;
zip->cb = NULL;
zip->archive = NULL;
zip->file = NULL;
zip->buf = NULL;
if (zip->message) {
free((char *)zip->message);
zip->message = NULL;
}
if (zip->stat) {
free(zip->stat);
zip->stat = NULL;
}
}
int uv_zip_open(uv_loop_t* loop, uv_zip_t *zip, const char *path, zip_flags_t flags, uv_zip_cb cb) {
assert(loop);
assert(zip);
assert(path);
assert(strlen(path));
zip->result = 0;
zip->path = path;
zip->flags = flags;
zip->cb = cb;
return uv_queue_work(loop, &zip->work, uv__zip_work_open, uv__zip_after_work);
}
int uv_zip_fdopen(uv_loop_t* loop, uv_zip_t *zip, uv_file fd, int flags, uv_zip_cb cb) {
assert(loop);
assert(zip);
assert(fd);
zip->result = 0;
zip->path = malloc(sizeof(uv_file));
*(uv_file *)zip->path = fd;
zip->flags = flags;
zip->cb = cb;
return uv_queue_work(loop, &zip->work, uv__zip_work_fdopen, uv__zip_after_work);
}
int uv_zip_stat(uv_loop_t* loop, uv_zip_t *zip, const char *fname, zip_flags_t flags, uv_zip_cb cb) {
assert(loop);
assert(zip);
assert(fname);
assert(strlen(fname));
assert(zip->archive);
zip->result = 0;
zip->path = fname;
zip->flags = flags;
zip->cb = cb;
return uv_queue_work(loop, &zip->work, uv__zip_work_stat, uv__zip_after_work);
}
int uv_zip_fopen(uv_loop_t* loop, uv_zip_t *zip, const char *fname, zip_flags_t flags, uv_zip_cb cb) {
assert(loop);
assert(zip);
assert(fname);
assert(strlen(fname));
assert(zip->archive);
zip->result = 0;
zip->path = fname;
zip->flags = flags;
zip->file = NULL;
zip->cb = cb;
return uv_queue_work(loop, &zip->work, uv__zip_work_fopen, uv__zip_after_work);
}
int uv_zip_fclose(uv_loop_t* loop, uv_zip_t *zip, struct zip_file *file, uv_zip_cb cb) {
assert(loop);
assert(zip);
assert(file);
assert(zip->archive);
zip->result = 0;
zip->file = file;
zip->cb = cb;
return uv_queue_work(loop, &zip->work, uv__zip_work_fclose, uv__zip_after_work);
}
int uv_zip_fread(uv_loop_t* loop, uv_zip_t *zip, struct zip_file *file, uv_buf_t *buf, uv_zip_cb cb) {
assert(loop);
assert(zip);
assert(file);
assert(buf);
assert(zip->archive);
zip->result = 0;
zip->file = file;
zip->buf = buf;
zip->cb = cb;
return uv_queue_work(loop, &zip->work, uv__zip_work_fread, uv__zip_after_work);
}
int uv_zip_discard(uv_loop_t* loop, uv_zip_t *zip, uv_zip_cb cb) {
assert(loop);
assert(zip);
assert(!zip->file);
zip->result = 0;
zip->cb = cb;
return uv_queue_work(loop, &zip->work, uv__zip_work_discard, uv__zip_after_work);
}
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