Web 中的 Vala Image Base64
Vala Image Base64 in Web
我想知道在 Vala (Soup.Server) 中我是否可以可视化图像
我有一个 base64 格式的字符串?
private static void default_handler(Soup.Server服务器,Soup.Message消息,字符串路径,GLib.HashTable?查询,Soup.ClientContext客户端){
var imgStr = (字符串) Base64.decode ("iVBORw0....");
msg.set_response("image/jpeg",Soup.MemoryUse.COPY,"%s".printf(imgStr).data);
}1
解决方案
void handle_static_file(Soup.Server server, Soup.Message message,
string path, HashTable? query, Soup.ClientContext context) {
server.pause_message(message);
handle_static_file_async.begin(server, message, path, query, context);
}
async void handle_static_file_async(Soup.Server server,
Soup.Message message, string path, HashTable? query,
Soup.ClientContext context) {
if (path == "/" || path == "") {
path = "index.html";
}
var file = File.new_for_path("static/" + path);
try {
var info = yield file.query_info_async("*", FileQueryInfoFlags.NONE);
var io = yield file.read_async();
Bytes data;
while ((data = yield io.read_bytes_async((size_t)info.get_size())).length > 0) {
message.response_body.append(Soup.MemoryUse.COPY,
data.get_data());
}
string content_type = info.get_content_type();
message.set_status(Soup.Status.OK);
message.response_headers.set_content_type(content_type, null);
} catch (IOError.NOT_FOUND e) {
message.set_status(404);
message.set_response("text/plain", Soup.MemoryUse.COPY,
("File " + file.get_path() + " does not exist.").data);
} catch (Error e) {
if (debug) {
stderr.printf("Failed to read file %s: %s\n", file.get_path(),
e.message);
}
message.set_status(500);
message.set_response("text/plain", Soup.MemoryUse.COPY,
e.message.data);
} finally {
server.unpause_message(message);
}
}
我想知道在 Vala (Soup.Server) 中我是否可以可视化图像 我有一个 base64 格式的字符串?
private static void default_handler(Soup.Server服务器,Soup.Message消息,字符串路径,GLib.HashTable?查询,Soup.ClientContext客户端){
var imgStr = (字符串) Base64.decode ("iVBORw0...."); msg.set_response("image/jpeg",Soup.MemoryUse.COPY,"%s".printf(imgStr).data);
}1
解决方案
void handle_static_file(Soup.Server server, Soup.Message message,
string path, HashTable? query, Soup.ClientContext context) {
server.pause_message(message);
handle_static_file_async.begin(server, message, path, query, context);
}
async void handle_static_file_async(Soup.Server server,
Soup.Message message, string path, HashTable? query,
Soup.ClientContext context) {
if (path == "/" || path == "") {
path = "index.html";
}
var file = File.new_for_path("static/" + path);
try {
var info = yield file.query_info_async("*", FileQueryInfoFlags.NONE);
var io = yield file.read_async();
Bytes data;
while ((data = yield io.read_bytes_async((size_t)info.get_size())).length > 0) {
message.response_body.append(Soup.MemoryUse.COPY,
data.get_data());
}
string content_type = info.get_content_type();
message.set_status(Soup.Status.OK);
message.response_headers.set_content_type(content_type, null);
} catch (IOError.NOT_FOUND e) {
message.set_status(404);
message.set_response("text/plain", Soup.MemoryUse.COPY,
("File " + file.get_path() + " does not exist.").data);
} catch (Error e) {
if (debug) {
stderr.printf("Failed to read file %s: %s\n", file.get_path(),
e.message);
}
message.set_status(500);
message.set_response("text/plain", Soup.MemoryUse.COPY,
e.message.data);
} finally {
server.unpause_message(message);
}
}