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Implement enough of the File JS API to serve some web pages.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4208 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams 2023-03-09 01:03:35 +00:00
parent bf72782c9f
commit 2c1a43df2e
3 changed files with 143 additions and 2 deletions
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139
src/file.js.c
View File

@ -4,6 +4,8 @@
#include "task.h"
#include "util.js.h"
#include "unzip.h"
#include <stdbool.h>
#include <string.h>
#include <uv.h>
@ -18,8 +20,10 @@
static JSValue _file_make_directory(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_remove_directory(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_read_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_read_file_zip(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_rename_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_stat(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_stat_zip(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_unlink_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _file_write_file(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
@ -44,14 +48,16 @@ void tf_file_register(JSContext* context)
{
JSValue global = JS_GetGlobalObject(context);
JSValue file = JS_NewObject(context);
void* task = JS_GetContextOpaque(context);
const char* zip = tf_task_get_zip_path(task);
JS_SetPropertyStr(context, global, "File", file);
JS_SetPropertyStr(context, file, "readFile", JS_NewCFunction(context, _file_read_file, "readFile", 1));
JS_SetPropertyStr(context, file, "readFile", JS_NewCFunction(context, zip ? _file_read_file_zip : _file_read_file, "readFile", 1));
JS_SetPropertyStr(context, file, "writeFile", JS_NewCFunction(context, _file_write_file, "writeFile", 2));
JS_SetPropertyStr(context, file, "makeDirectory", JS_NewCFunction(context, _file_make_directory, "makeDirectory", 1));
JS_SetPropertyStr(context, file, "removeDirectory", JS_NewCFunction(context, _file_remove_directory, "removeDirectory", 1));
JS_SetPropertyStr(context, file, "unlinkFile", JS_NewCFunction(context, _file_unlink_file, "unlinkFile", 1));
JS_SetPropertyStr(context, file, "renameFile", JS_NewCFunction(context, _file_rename_file, "renameFile", 2));
JS_SetPropertyStr(context, file, "stat", JS_NewCFunction(context, _file_stat, "stat", 1));
JS_SetPropertyStr(context, file, "stat", JS_NewCFunction(context, zip ? _file_stat_zip : _file_stat, "stat", 1));
JS_FreeValue(context, global);
}
@ -146,6 +152,112 @@ static JSValue _file_read_file(JSContext* context, JSValueConst this_val, int ar
return promise_value;
}
typedef struct _zip_read_work_t
{
uv_work_t request;
JSContext* context;
tf_task_t* task;
const char* file_path;
promiseid_t promise;
int result;
uint8_t* buffer;
size_t size;
} zip_read_work_t;
static void _file_read_file_zip_work(uv_work_t* work)
{
zip_read_work_t* data = work->data;
unzFile zip = unzOpen(tf_task_get_zip_path(data->task));
bool is_file_open = false;
if (!zip)
{
data->result = errno;
return;
}
data->result = unzLocateFile(zip, data->file_path, 1);
if (data->result != UNZ_OK)
{
goto done;
}
unz_file_info64 info = { 0 };
data->result = unzGetCurrentFileInfo64(zip, &info, NULL, 0, NULL, 0, NULL, 0);
if (data->result != UNZ_OK)
{
goto done;
}
data->result = unzOpenCurrentFile(zip);
if (data->result != UNZ_OK)
{
goto done;
}
is_file_open = true;
data->buffer = tf_malloc(info.uncompressed_size);
data->result = unzReadCurrentFile(zip, data->buffer, info.uncompressed_size);
if (data->result <= 0)
{
tf_free(data->buffer);
data->buffer = NULL;
}
done:
if (is_file_open)
{
unzCloseCurrentFile(zip);
}
unzClose(zip);
}
static void _file_read_file_zip_after_work(uv_work_t* work, int status)
{
zip_read_work_t* data = work->data;
if (data->result >= 0)
{
tf_task_resolve_promise(data->task, data->promise, tf_util_new_uint8_array(data->context, data->buffer, data->result));
}
else
{
tf_task_reject_promise(data->task, data->promise, JS_ThrowInternalError(data->context, "Error: %d.", data->result));
}
tf_free(data->buffer);
tf_free((void*)data->file_path);
tf_free(data);
}
static JSValue _file_read_file_zip(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
void* task = JS_GetContextOpaque(context);
const char* file_name = JS_ToCString(context, argv[0]);
zip_read_work_t* work = tf_malloc(sizeof(zip_read_work_t));
*work = (zip_read_work_t)
{
.request =
{
.data = work,
},
.context = context,
.task = task,
.file_path = tf_strdup(file_name),
};
JSValue promise_value = tf_task_allocate_promise(task, &work->promise);
int r = uv_queue_work(tf_task_get_loop(task), &work->request, _file_read_file_zip_work, _file_read_file_zip_after_work);
if (r)
{
tf_task_reject_promise(task, work->promise, JS_ThrowInternalError(context, "%s", uv_strerror(r)));
tf_free((void*)work->file_path);
tf_free(work);
}
JS_FreeCString(context, file_name);
return promise_value;
}
static void _file_write_write_callback(uv_fs_t* req)
{
uv_fs_req_cleanup(req);
@ -368,6 +480,29 @@ JSValue _file_stat(JSContext* context, JSValueConst this_val, int argc, JSValueC
return promise_value;
}
JSValue _file_stat_zip(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
void* task = JS_GetContextOpaque(context);
promiseid_t promise = -1;
JSValue promise_value = tf_task_allocate_promise(task, &promise);
file_stat_t* data = tf_malloc(sizeof(file_stat_t));
data->_task = task;
data->_promise = promise;
data->_request.data = data;
data->_context = context;
/* Ignore the requested path and stat the zip itself. */
int result = uv_fs_stat(tf_task_get_loop(task), &data->_request, tf_task_get_zip_path(task), _file_on_stat_complete);
if (result)
{
tf_task_reject_promise(task, promise, JS_NewInt32(context, result));
uv_fs_req_cleanup(&data->_request);
tf_free(data);
}
return promise_value;
}
static double _time_spec_to_double(const uv_timespec_t* time_spec)
{
return time_spec->tv_sec + (double)(time_spec->tv_nsec) / 1e9;

5
src/task.c
View File

@ -1882,6 +1882,11 @@ void tf_task_set_zip_path(tf_task_t* task, const char* zip_path)
}
}
const char* tf_task_get_zip_path(tf_task_t* task)
{
return task->_zip ? task->_zip_path : NULL;
}
void tf_task_set_args(tf_task_t* task, const char* args)
{
task->_args = args;

1
src/task.h
View File

@ -42,6 +42,7 @@ void tf_task_set_http_port(tf_task_t* task, int port);
void tf_task_set_https_port(tf_task_t* task, int port);
void tf_task_set_db_path(tf_task_t* task, const char* path);
void tf_task_set_zip_path(tf_task_t* task, const char* path);
const char* tf_task_get_zip_path(tf_task_t* task);
void tf_task_set_args(tf_task_t* task, const char* args);
void tf_task_activate(tf_task_t* task);
void tf_task_run(tf_task_t* task);