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derploader
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derploader/src/main.zig

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const std = @import("std");
const sqlite = @import("sqlite");
const clap = @import("clap");
const curl = @cImport({
@cInclude("curl/curl.h");
});
const uri = @import("uri");
const json = @import("json");
const log = std.log.scoped(.derploader);
const params = [_]clap.Param(clap.Help){
clap.parseParam("-h, --help Display this help and exit.") catch unreachable,
clap.parseParam("-c, --create=<PATH> Create new database at PATH.") catch unreachable,
clap.parseParam("-i <ID>... Operate on ID.") catch unreachable,
clap.parseParam("-a Operate on all IDs in the database.") catch unreachable,
clap.parseParam("-l <FILE>... Operate on IDs from a file.") catch unreachable,
clap.parseParam("-m Download metadata for ID image.") catch unreachable,
clap.parseParam("-d Download image data of ID.") catch unreachable,
clap.parseParam("-e Extract image to local subfolder.") catch unreachable,
clap.parseParam("-t <MILLIS> Time between requests.") catch unreachable,
clap.parseParam("-r Register ID.") catch unreachable,
clap.parseParam("-k Include key in searches from environment variable DERPI_KEY.") catch unreachable,
clap.parseParam("-s <SEARCH>... Iterate over the results of searches.") catch unreachable,
clap.parseParam("-o <ORDER> Order searches by ORDER, descending.") catch unreachable,
clap.parseParam("-O <ORDER> Order searches by ORDER, ascending.") catch unreachable,
clap.parseParam("-p <PAGE> Start from page PAGE.") catch unreachable,
clap.parseParam("-P <PAGES> Stop after PAGES pages.") catch unreachable,
clap.parseParam("--migrate Update an old database.") catch unreachable,
clap.parseParam("--yolo PRAGMA synchronous = OFF") catch unreachable,
};
fn printFullUsage(w: anytype) !void {
_ = try w.print("{s} ", .{std.os.argv[0]});
try clap.usage(w, &params);
_ = try w.writeByte('\n');
try clap.help(w, &params);
return;
}
fn sqliteErrorReport(str: []const u8, db: *sqlite.Db) void {
log.err("{s}: {}", .{ str, db.getDetailedError() });
}
fn curlErrorReport(str: []const u8, code: curl.CURLcode) void {
log.err("{s}: {s} {s}", .{ str, curl.curl_easy_strerror(code), curlerr[0.. :0] });
}
const create =
\\CREATE TABLE IF NOT EXISTS image(
\\ iid INTEGER PRIMARY KEY,
\\ eid INTEGER UNIQUE,
\\ metadata TEXT,
\\ full_url TEXT GENERATED ALWAYS AS
\\ (json_extract(metadata, '$.image.representations.full')) VIRTUAL,
\\ thumb_url TEXT GENERATED ALWAYS AS
\\ (json_extract(metadata, '$.image.representations.thumb')) VIRTUAL,
\\ extension TEXT GENERATED ALWAYS AS
\\ (json_extract(metadata, '$.image.format')) VIRTUAL,
\\ hash_meta TEXT,
\\ image_id INTEGER,
\\ thumb_id INTEGER
\\);
;
const metatable =
\\CREATE TABLE IF NOT EXISTS derpiloader(
\\ name TEXT,
\\ value
\\);
;
pub fn insertMeta(db: *sqlite.Db, id: u64, meta: []const u8) !void {
const q =
\\INSERT OR ROLLBACK INTO image (id, metadata) VALUES (?, ?);
;
try db.exec(q, .{}, .{ .id = id, .metadata = meta });
}
const api_base = "https://derpibooru.org/api/v1/json";
var urlbuf = [_:0]u8{0} ** 512;
var curlerr = [_:0]u8{0} ** (curl.CURL_ERROR_SIZE);
const hash_prefix = "blake3-";
var hash_buf = [_]u8{0} ** (std.crypto.hash.Blake3.digest_length);
var hash_buf2 = [_]u8{0} ** (std.crypto.hash.Blake3.digest_length * 2 + hash_prefix[0..].len);
fn hashit(input: []const u8) !void {
std.crypto.hash.Blake3.hash(input, hash_buf[0..], .{});
_ = try std.fmt.bufPrint(
hash_buf2[0..],
hash_prefix ++ "{s}",
.{std.fmt.fmtSliceHexLower(hash_buf[0..])},
);
}
var fetch_timer: ?std.time.Timer = null;
var fetch_wait: u64 = 0;
var first_fetch = true;
pub fn main() anyerror!void {
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
const alloc = &gpa.allocator;
var diag = clap.Diagnostic{};
var args = clap.parse(
clap.Help,
&params,
.{ .diagnostic = &diag, .allocator = alloc },
) catch |err| {
// Report useful error and exit
diag.report(std.io.getStdErr().writer(), err) catch {};
return;
};
defer args.deinit();
if (args.flag("-h")) {
var w = std.io.getStdOut().writer();
try printFullUsage(w);
return;
}
const filename = "test.db3";
var db = try sqlite.Db.init(.{
.mode = sqlite.Db.Mode{ .File = filename },
.open_flags = .{
.write = true,
.create = true,
},
.threading_mode = .SingleThread,
});
db.exec(create, .{}, .{ 0, 0, 0 }) catch sqliteErrorReport("Couldn't create table", &db);
if (args.flag("--migrate")) {
if (args.flag("--yolo")) try db.exec("PRAGMA synchronous=0;", .{}, .{});
try db.exec("BEGIN IMMEDIATE;", .{}, .{});
errdefer db.exec("ROLLBACK;", .{}, .{}) catch std.debug.panic("SQLite database errored trying to roll back. Have fun!", .{});
var stmt = try db.prepare("SELECT ROWID FROM image;");
defer stmt.deinit();
var iter = try stmt.iterator(u64, .{});
while (try iter.next(.{})) |id| {
try db.exec(
\\INSERT INTO blob (data, hash)
\\ SELECT image, hash_full
\\ FROM image WHERE ROWID = ?;
, .{}, .{id});
try db.exec(
\\UPDATE image
\\ SET image_id = last_insert_rowid()
\\ WHERE ROWID = ?
, .{}, .{id});
try db.exec(
\\INSERT INTO blob (data, hash)
\\ SELECT thumb, hash_thumb
\\ FROM image WHERE ROWID = ?;
, .{}, .{id});
try db.exec(
\\UPDATE image
\\ SET thumb_id = last_insert_rowid()
\\ WHERE ROWID = ?
, .{}, .{id});
}
db.exec("COMMIT;", .{}, .{}) catch std.debug.panic("SQLite database errored trying to commit. Not *terrible*, I guess.", .{});
return;
}
var ret = curl.curl_global_init(curl.CURL_GLOBAL_ALL);
if (ret != curl.CURLE_OK) {
log.err("cURL global init failure: {s}", .{curl.curl_easy_strerror(ret)});
return;
}
defer curl.curl_global_cleanup();
const handle = curl.curl_easy_init() orelse return error.CURLHandleInitFailed;
defer curl.curl_easy_cleanup(handle);
var response_buffer = std.ArrayList(u8).init(alloc);
defer response_buffer.deinit();
_ = curl.curl_easy_setopt(handle, curl.CURLOPT_ERRORBUFFER, &curlerr);
const key = std.os.getenv("DERPI_KEY") orelse null;
if (args.option("-t")) |millis_str| {
const millis = std.fmt.parseInt(u64, millis_str, 10) catch {
log.err("Fetch wait time must be a positive integer denoting some number of milliseconds.", .{});
return;
};
fetch_wait = millis;
}
for (args.options("-i")) |id_str| {
log.info("Iterating over all specified command line IDs.", .{});
const id = std.fmt.parseInt(u64, id_str, 10) catch {
log.err("Image ID must be a positive integer.", .{});
continue;
};
log.info("Operating on ID {d}, per -i.", .{id});
runActions(&db, id, &response_buffer, alloc, handle, &args, null);
}
if (args.flag("-a")) {
log.info("Iterating over all registered IDs.", .{});
var stmt = try db.prepare("SELECT id FROM image WHERE id IS NOT NULL");
defer stmt.deinit();
var iter = try stmt.iterator(u64, .{});
while (try iter.next(.{})) |id| {
log.info("Operating on ID {d}, per -a.", .{id});
runActions(&db, id, &response_buffer, alloc, handle, &args, null);
}
}
for (args.options("-l")) |path| {
log.info("Iterating over IDs listed in {s}.", .{path});
var file = std.fs.cwd().openFile(path, .{ .read = true }) catch |err| {
log.err("Couldn't open file {s}: {}", .{ path, err });
continue;
};
defer file.close();
var reader = file.reader();
var buffer: [128]u8 = undefined;
while (try reader.readUntilDelimiterOrEof(&buffer, '\n')) |id_str| {
const id = std.fmt.parseInt(u64, id_str, 10) catch {
log.err("Image ID must be a positive integer.", .{});
continue;
};
log.info("Operating on ID {d}, per -l.", .{id});
runActions(&db, id, &response_buffer, alloc, handle, &args, null);
}
}
const searches = args.options("-s");
if (searches.len > 0) {
//var reader = std.io.fixedBufferStream(
// @embedFile("/etc/ssl/certs/ca-certificates.crt"),
//).reader();
//const trust = try tls.x509.CertificateChain.from_pem(alloc, reader);
// catch |a| {
// log.err("Something dun fucked with the certs: {}", .{a});
// return;
// };
const sort_ascending = args.option("-O");
const sort_descending = args.option("-o");
const sort_order = if (sort_ascending) |_| blk: {
if (sort_descending) |_| {
log.err("Can't sort up *and* down, dummy.", .{});
return;
} else {
break :blk "asc";
}
} else blk: {
if (sort_descending) |_| {
break :blk "desc";
} else {
break :blk "desc";
}
};
const sort_by = sort_descending orelse sort_ascending orelse "id";
var page = if (args.option("-p")) |page| blk: {
break :blk std.fmt.parseInt(u64, page, 10) catch {
log.err("Page must be a positive integer.", .{});
return;
};
} else 1;
var maxPages = if (args.option("-P")) |nr| blk: {
break :blk std.fmt.parseInt(u64, nr, 10) catch {
log.err("Pages maximum must be a positive integer.", .{});
return;
};
} else 0;
const kkey: []const u8 = key orelse "";
const aaaa: []const u8 = if (key) |_| "&key=" else "";
var fuckme = std.ArrayList(u8).init(alloc);
defer fuckme.deinit();
for (searches) |search| {
const esearch = try uri.escapeString(alloc, search);
var pages: u64 = 0;
log.info("Iterating over search \"{s}\", starting on page {d}.", .{ search, page });
fuck: while (true) {
pages += 1;
if (maxPages > 0 and pages == maxPages) {
return;
}
log.info("Doing page {d}, {d}/{d}.", .{ page, pages, maxPages });
_ = try std.fmt.bufPrintZ(
urlbuf[0..],
api_base ++ "/search/images?q={s}&page={d}&sd={s}&sf={s}&per_page=50{s}{s}",
.{
esearch, page, sort_order, sort_by, aaaa, kkey,
},
);
fuckme.clearRetainingCapacity();
try easyFetch(handle, &urlbuf, &fuckme);
const val = try json.parse(alloc, fuckme.items);
if (val.get(.{"images"})) |aa| {
if (unwrap(aa, .Array)) |images| {
for (images) |i| {
var buffer: [1024 * 20]u8 = undefined;
const pid = unwrap(i.get("id") orelse {
log.err("Malformed reply from Derpi.", .{});
return;
}, .Int) orelse {
log.err("Malformed reply from Derpi, but in a different way.", .{});
return;
};
const id = if (pid >= 0) @intCast(u64, pid) else {
log.err("Malformed reply from Derpi, but in a third way.", .{});
return;
};
var aaa = std.io.fixedBufferStream(buffer[0..]).writer();
const data = json.Value{ .Object = &[_]json.Member{
json.Member{
.key = "image",
.value = i,
},
} };
try data.format("", .{}, aaa);
const jason = buffer[0..aaa.context.pos];
runActions(
&db,
id,
&response_buffer,
alloc,
handle,
&args,
jason,
);
}
if (images.len == 50) {
page += 1;
} else {
break :fuck;
}
}
}
}
page = 1;
}
}
}
pub fn unwrap(
un: anytype,
comptime tag: std.meta.Tag(@TypeOf(un)),
) ?std.meta.TagPayload(@TypeOf(un), tag) {
if (un != tag) return null;
return @field(un, @tagName(tag));
}
fn runActions(
db: *sqlite.Db,
id: u64,
resp: *std.ArrayList(u8),
alloc: *std.mem.Allocator,
handle: *curl.CURL,
args: anytype,
meta: ?[]const u8,
) void {
if (args.flag("-r")) {
registerID(db, id) catch |e| switch (e) {
error.GO_ON => {},
error.FATAL => {
db.deinit();
std.os.exit(1);
},
else => {
db.deinit();
std.os.exit(2);
},
};
}
if (args.flag("-m")) {
if (meta) |m| {
storeMetadata(db, id, m) catch |e| switch (e) {
error.GO_ON => {},
error.FATAL => {
db.deinit();
std.os.exit(1);
},
else => {
db.deinit();
std.os.exit(2);
},
};
} else {
getMetadata(db, id, resp, handle) catch |e| switch (e) {
error.GO_ON => {},
error.FATAL => {
db.deinit();
std.os.exit(1);
},
else => {
db.deinit();
std.os.exit(2);
},
};
}
}
resp.clearRetainingCapacity();
std.mem.set(u8, hash_buf[0..], 0);
std.mem.set(u8, hash_buf2[0..], 0);
if (args.flag("-d")) {
getImage(db, id, resp, alloc, handle) catch |e| switch (e) {
error.GO_ON => {},
error.FATAL => {
db.deinit();
std.os.exit(1);
},
else => {
db.deinit();
std.os.exit(2);
},
};
}
resp.clearRetainingCapacity();
std.mem.set(u8, hash_buf[0..], 0);
std.mem.set(u8, hash_buf2[0..], 0);
if (args.flag("-e")) {
extractImage(db, id, alloc) catch |e| switch (e) {
error.GO_ON => {},
else => {
db.deinit();
std.os.exit(2);
},
};
}
}
fn registerID(db: *sqlite.Db, id: u64) !void {
log.info("Registering ID {d}.", .{id});
const foo = db.one(
bool,
"SELECT true FROM image WHERE id = ?;",
.{},
.{ .id = id },
) catch {
sqliteErrorReport("SQLite error while checking if ID already present", db);
return error.GO_ON;
};
if (foo) |_| {
log.info("ID {d} already registered.", .{id});
return;
}
try db.exec("BEGIN IMMEDIATE", .{}, .{});
errdefer db.exec("ROLLBACK;", .{}, .{}) catch {};
db.exec(
\\INSERT OR ROLLBACK
\\ INTO image (id)
\\ VALUES (?);
, .{}, .{ .id = id }) catch {
sqliteErrorReport("Couldn't insert ID into database.", db);
return error.GO_ON;
};
db.exec("COMMIT", .{}, .{}) catch {
sqliteErrorReport("FATAL: couldn't commit database", db);
return error.FATAL;
};
}
fn storeMetadata(
db: *sqlite.Db,
id: u64,
metadata: []const u8,
) !void {
log.info("Storing metadata for ID {d}.", .{id});
const foobar = db.one(
bool,
"SELECT true FROM image WHERE id = ? AND metadata IS NOT NULL;",
.{},
.{ .id = id },
) catch {
sqliteErrorReport("SQLite error while checking for metadata precence.", db);
return error.GO_ON;
};
if (foobar) |_| {
log.info("Metadata for ID {d} already acquired. Use -u to replace.", .{id});
return;
}
const valid = std.json.validate(metadata);
if (valid) {
try db.exec("BEGIN IMMEDIATE;", .{}, .{});
errdefer db.exec("ROLLBACK;", .{}, .{}) catch {};
db.exec(
\\INSERT OR ROLLBACK
\\ INTO
\\ image (id, metadata)
\\ VALUES (?, ?)
\\ ON CONFLICT (id)
\\ DO UPDATE
\\ SET metadata=excluded.metadata;
, .{}, .{ .id = id, .metadata = metadata }) catch {
sqliteErrorReport("Couldn't add metadata for ID {d} to database.", db);
return error.GO_ON;
};
hashit(metadata) catch |err| {
log.err("Couldn't hash metadata for ID {d}: {s}", .{ id, err });
return error.GO_ON;
};
db.exec(
"UPDATE OR ROLLBACK image SET hash_meta = ? WHERE id = ?",
.{},
.{ hash_buf2[0..], id },
) catch {
sqliteErrorReport("Couldn't set metadata hash", db);
return error.GO_ON;
};
db.exec("COMMIT", .{}, .{}) catch {
sqliteErrorReport("FATAL: couldn't commit database", db);
return error.FATAL;
};
}
}
fn getMetadata(
db: *sqlite.Db,
id: u64,
resp: *std.ArrayList(u8),
handle: *curl.CURL,
) !void {
log.info("Downloading metadata for ID {d}.", .{id});
const foobar = db.one(
bool,
"SELECT true FROM image WHERE id = ? AND metadata IS NOT NULL;",
.{},
.{ .id = id },
) catch {
sqliteErrorReport("SQLite error while checking for metadata precence.", db);
return error.GO_ON;
};
if (foobar) |_| {
log.info("Metadata for ID {d} already acquired. Use -u to replace.", .{id});
return;
}
_ = try std.fmt.bufPrintZ(
urlbuf[0..],
api_base ++ "/images/{d}",
.{id},
);
easyFetch(handle, &urlbuf, resp) catch {
log.info("Failed to download metadata for ID {d}.", .{id});
return error.FATAL;
};
const valid = std.json.validate(resp.items);
if (valid) {
try db.exec("BEGIN IMMEDIATE;", .{}, .{});
errdefer db.exec("ROLLBACK;", .{}, .{}) catch {};
db.exec(
\\INSERT OR ROLLBACK
\\ INTO
\\ image (id, metadata)
\\ VALUES (?, ?)
\\ ON CONFLICT (id)
\\ DO UPDATE
\\ SET metadata=excluded.metadata;
, .{}, .{ .id = id, .metadata = resp.items }) catch {
sqliteErrorReport("Couldn't add metadata for ID {d} to database.", db);
return error.GO_ON;
};
hashit(resp.items) catch |err| {
log.err("Couldn't hash metadata for ID {d}: {s}", .{ id, err });
return error.GO_ON;
};
db.exec(
"UPDATE OR ROLLBACK image SET hash_meta = ? WHERE id = ?",
.{},
.{ hash_buf2[0..], id },
) catch {
sqliteErrorReport("Couldn't set metadata hash", db);
return error.GO_ON;
};
db.exec("COMMIT", .{}, .{}) catch {
sqliteErrorReport("FATAL: couldn't commit database", db);
return error.FATAL;
};
} else {
log.err("Invalid metadata for ID {d}", .{id});
return error.FATAL;
}
}
fn getImage(
db: *sqlite.Db,
id: u64,
resp: *std.ArrayList(u8),
alloc: *std.mem.Allocator,
handle: *curl.CURL,
) !void {
log.info("Downloading image and thumbnail for ID {d}.", .{id});
const foobar = db.oneAlloc(
struct {
full_url: ?[:0]u8,
thumb_url: ?[:0]u8,
},
alloc,
"SELECT full_url, thumb_url FROM image WHERE id = ?",
.{},
.{ .id = id },
) catch {
sqliteErrorReport("SQLite error while getting image URLs", db);
return error.GO_ON;
};
if (foobar) |res| {
if (res.full_url) |url| blk: {
defer alloc.free(url);
const skipper = db.one(bool,
\\SELECT true FROM image
\\ WHERE id = ? AND image IS NOT NULL;
, .{}, .{id}) catch {
sqliteErrorReport("SQLite error while checking if image is already downloaded", db);
return error.GO_ON;
};
if (skipper) |_| {
log.info("Image for ID {d} already downloaded.", .{id});
break :blk;
}
easyFetch(handle, url, resp) catch {
log.info("Failed to download fullsize image for ID {d}", .{id});
return error.FATAL;
};
try db.exec("BEGIN IMMEDIATE;", .{}, .{});
errdefer db.exec("ROLLBACK;", .{}, .{}) catch {};
db.exec(
"UPDATE OR ROLLBACK image SET image = ? WHERE id = ?",
.{},
.{
.image = resp.items,
.id = id,
},
) catch {
sqliteErrorReport("Couldn't add image to DB.", db);
return error.GO_ON;
};
hashit(resp.items) catch |err| {
log.err("Couldn't hash image for ID {d}: {s}", .{ id, err });
return error.GO_ON;
};
db.exec(
"UPDATE OR ROLLBACK image SET hash_full = ? WHERE id = ?",
.{},
.{ hash_buf2[0..], id },
) catch {
sqliteErrorReport("Couldn't set iamge hash", db);
return error.GO_ON;
};
db.exec("COMMIT", .{}, .{}) catch {
sqliteErrorReport("FATAL: couldn't commit database", db);
return error.FATAL;
};
resp.clearRetainingCapacity();
std.mem.set(u8, hash_buf[0..], 0);
std.mem.set(u8, hash_buf2[0..], 0);
}
if (res.thumb_url) |url| blk: {
defer alloc.free(url);
const skipper = db.one(bool,
\\SELECT true FROM image
\\ WHERE id = ? AND thumb IS NOT NULL;
, .{}, .{id}) catch {
sqliteErrorReport("SQLite error while checking if thumb is already downloaded", db);
return error.GO_ON;
};
if (skipper) |_| {
log.info("Thumb for ID {d} already downloaded.", .{id});
break :blk;
}
easyFetch(handle, url, resp) catch {
log.info("Failed to download thumbnail image for ID {d}", .{id});
return error.GO_ON;
};
try db.exec("BEGIN IMMEDIATE;", .{}, .{});
errdefer db.exec("ROLLBACK;", .{}, .{}) catch {};
db.exec(
"UPDATE OR ROLLBACK image SET thumb = ? WHERE id = ?",
.{},
.{
.thumb = resp.items,
.id = id,
},
) catch {
sqliteErrorReport("Couldn't add thumb to DB", db);
return error.GO_ON;
};
hashit(resp.items) catch |err| {
log.err("Couldn't hash thumb for ID {d}: {s}", .{ id, err });
return error.GO_ON;
};
db.exec(
"UPDATE OR ROLLBACK image SET hash_thumb = ? WHERE id = ?",
.{},
.{ hash_buf2[0..], id },
) catch {
sqliteErrorReport("Couldn't add thumb hash", db);
return error.GO_ON;
};
db.exec("COMMIT", .{}, .{}) catch {
sqliteErrorReport("FATAL: couldn't commit database", db);
return error.FATAL;
};
}
} else {
log.err("No metadata for id {d} available", .{id});
return;
}
}
fn extractImage(db: *sqlite.Db, id: u64, alloc: *std.mem.Allocator) !void {
log.info("Extracting image for ID {d}.", .{id});
const foo = db.oneAlloc(
struct {
image: ?[:0]u8,
extension: ?[:0]u8,
},
alloc,
"SELECT image, extension FROM image WHERE id = ?",
.{},
.{ .id = id },
) catch {
sqliteErrorReport("SQLite error while reading image", db);
return error.GO_ON;
};
defer {
if (foo) |f| {
if (f.image) |i| {
alloc.free(i);
}
if (f.extension) |e| {
alloc.free(e);
}
}
}
if (foo) |res| {
const bar = comptime @as([]const u8, "unknown");
const baz = if (res.extension) |e| e else bar;
var buf = [_]u8{0} ** 64;
const buf2 = try std.fmt.bufPrint(
buf[0..],
"{d:0>10}.{s}",
.{
id,
baz,
},
);
if (res.image) |image| {
var dir = try std.fs.cwd().makeOpenPath("images", .{
.access_sub_paths = true,
});
var file = try dir.createFile(
buf2,
.{
.read = false,
.truncate = true,
},
);
defer file.close();
try file.writeAll(image);
log.info("Extracted image for ID {d}.", .{id});
} else {
log.info("No image data for ID {d}.", .{id});
}
}
}
fn easyFetch(handle: *curl.CURL, url: [*:0]const u8, resp: *std.ArrayList(u8)) !void {
if (fetch_wait > 0) {
if (fetch_timer) |*timer| {
const cur = timer.read() / (1000 * 1000);
if (cur < fetch_wait) {
std.time.sleep((fetch_wait - cur) * 1000 * 1000);
}
timer.reset();
} else {
fetch_timer = try std.time.Timer.start();
}
}
var ret = curl.curl_easy_setopt(handle, curl.CURLOPT_URL, url);
if (ret != curl.CURLE_OK) {
curlErrorReport("cURL set url:", ret);
return error.FUCK;
}
ret = curl.curl_easy_setopt(handle, curl.CURLOPT_WRITEFUNCTION, writeToArrayListCallback);
if (ret != curl.CURLE_OK) {
curlErrorReport("cURL set writefunction:", ret);
return error.FUCK;
}
ret = curl.curl_easy_setopt(handle, curl.CURLOPT_WRITEDATA, resp);
if (ret != curl.CURLE_OK) {
curlErrorReport("cURL set writedata:", ret);
return error.FUCK;
}
ret = curl.curl_easy_setopt(handle, curl.CURLOPT_USERAGENT, "Derpiloader 0.1 (linux)");
if (ret != curl.CURLE_OK) {
curlErrorReport("cURL set user agent:", ret);
return error.FUCK;
}
ret = curl.curl_easy_perform(handle);
if (ret != curl.CURLE_OK) {
curlErrorReport("cURL perform:", ret);
return error.FUCK;
}
log.info("Got {d} bytes", .{resp.items.len});
}
fn writeToArrayListCallback(
data: *c_void,
size: c_uint,
nmemb: c_uint,
user_data: *c_void,
) callconv(.C) c_uint {
var buffer = @intToPtr(*std.ArrayList(u8), @ptrToInt(user_data));
var typed_data = @intToPtr([*]u8, @ptrToInt(data));
buffer.appendSlice(typed_data[0 .. nmemb * size]) catch return 0;
return nmemb * size;
}
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