if want log control panel getting 400 bad request error says:
bad request
the browser (or proxy) sent request server not understand.
i have search form , if want search through database, getting same error .
the site working on apache webserver, interesting that, if ran application using python manage.py runserver command, error won't show more in apache error showing .
here how code looks in views.py:
@app.route('/login/', methods=('get', 'post')) @auth.login_required def login(): if session.get('username') or session.get('is_author') == true: flash("already logged in .") return redirect(url_for('index')) form = loginform() error = none if request.method == 'get' , request.args.get('next'): session['next'] = request.args.get('next') if form.validate_on_submit(): user = user.query.filter_by( username = form.username.data ).first() if user: if bcrypt.hashpw(form.password.data, user.password) == user.password: session['username'] = form.username.data session['is_author'] = user.is_author if 'next' in session: next = session.get('next') session.pop('next') return redirect(next) else: flash('welcome %s'%session['username'].upper()) return redirect(url_for('index')) else: error = "incorrect username or password ." flash(error) else: flash(error) error = "incorrect username or username ." return render_template('auth/login.html', form=form) also search code in views.py:
def replace_last(source_string, replace_what, replace_with): head, sep, tail = source_string.rpartition(replace_what) return head + replace_with + tail @app.route('/search/<query>', methods=['get','post']) def search_engine(query): user = user.query.first() try: query = request.form['autocomplete'] r = replace_last(query, ' ', '') posts = post.query.filter(post.title.like('%'+r+'%')).order_by(post.publish_date.desc()) except typeerror: flash('no results.') return render_template('main/search_form.html') context = { "posts":posts, "r":r, "user":user, "query":query } return render_template('main/search_form.html', **context) another thing mention that, site running under https , maybe causing problems, don't know !! , in fact using letsencrypt, in article i've seen people saying there's problem when using flask , https when using requests post or get, deleted letsencrypt server restarted apache didn't solved problem , frustrated don't know do.
another thing forgot add, app.conf in /etc/apache2/site-available , maybe way know causing problem :
<virtualhost *:80> servername site.com serveralias www.site.com wsgiscriptalias / /var/www/myapp/flaskapp.wsgi <directory /var/www/myapp/siteapp/> order allow,deny allow </directory> alias /static /var/www/myapp/siteapp/static <directory /var/www/myapp/siteapp/static/> order allow,deny allow </directory> errorlog ${apache_log_dir}/error.log loglevel warn customlog ${apache_log_dir}/access.log combined rewriteengine on rewritecond %{server_name} =www.site.com [or] rewritecond %{server_name} =site.com rewriterule ^ https://%{server_name}%{request_uri} [end,qsa,r=permanent] </virtualhost> inside sites-available/app.conf did proxy redirection, ran application using runserver command, inside app.conf added these lines of codes :
proxypass / http://0.0.0.0:5000/ proxypassreverse / http://0.0.0.0:5000/ so that, bad request disappeared, wired thing is, i'am getting wtform error says:
this field required.
means empty, practically not, typing information , handling them inside views.py mentioned above .
eventually, please millions appreciated .
i solved problem, in case faced unbelievable, undebugable problem following:
remove
apache2dependencies, :sudo apt-get purge apache2 apache2-utilsthen follow tutorial about, how deploy flask application on
nginx webserver:
that's it, i'am happy right :) .
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