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#include <stdio.h>
#include <string.h>
#include <utility>
#include <string>
#include "workflow/Workflow.h"
#include "workflow/WFTaskFactory.h"
#include "workflow/HttpMessage.h"
#include "workflow/HttpUtil.h"
#include "workflow/WFFacilities.h"
using namespace protocol;
#define REDIRECT_MAX 5
#define RETRY_MAX 2
struct tutorial_series_context
{
std::string url;
int state;
int error;
HttpResponse resp;
};
void callback(const ParallelWork *pwork)
{
tutorial_series_context *ctx;
const void *body;
size_t size;
size_t i;
for (i = 0; i < pwork->size(); i++)
{
ctx = (tutorial_series_context *)pwork->series_at(i)->get_context();
printf("%s\n", ctx->url.c_str());
if (ctx->state == WFT_STATE_SUCCESS)
{
ctx->resp.get_parsed_body(&body, &size);
printf("%zu%s\n", size, ctx->resp.is_chunked() ? " chunked" : "");
fwrite(body, 1, size, stdout);
printf("\n");
}
else
printf("ERROR! state = %d, error = %d\n", ctx->state, ctx->error);
delete ctx;
}
}
int main(int argc, char *argv[])
{
ParallelWork *pwork = Workflow::create_parallel_work(callback);
SeriesWork *series;
WFHttpTask *task;
HttpRequest *req;
tutorial_series_context *ctx;
int i;
for (i = 1; i < argc; i++)
{
std::string url(argv[i]);
if (strncasecmp(argv[i], "http://", 7) != 0 &&
strncasecmp(argv[i], "https://", 8) != 0)
{
url = "http://" +url;
}
task = WFTaskFactory::create_http_task(url, REDIRECT_MAX, RETRY_MAX,
[](WFHttpTask *task)
{
tutorial_series_context *ctx =
(tutorial_series_context *)series_of(task)->get_context();
ctx->state = task->get_state();
ctx->error = task->get_error();
ctx->resp = std::move(*task->get_resp());
});
req = task->get_req();
req->add_header_pair("Accept", "*/*");
req->add_header_pair("User-Agent", "Wget/1.14 (linux-gnu)");
req->add_header_pair("Connection", "close");
ctx = new tutorial_series_context;
ctx->url = std::move(url);
series = Workflow::create_series_work(task, nullptr);
series->set_context(ctx);
pwork->add_series(series);
}
WFFacilities::WaitGroup wait_group(1);
Workflow::start_series_work(pwork, [&wait_group](const SeriesWork *) {
wait_group.done();
});
wait_group.wait();
return 0;
}
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