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/* libquvi
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* Copyright (C) 2012,2013 Toni Gundogdu <legatvs@gmail.com>
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*
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* This file is part of libquvi <http://quvi.sourceforge.net/>.
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public
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* License as published by the Free Software Foundation, either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General
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* Public License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <lauxlib.h>
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#include <glib.h>
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#include "quvi.h"
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/* -- */
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#include "_quvi_s.h"
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#include "_quvi_script_s.h"
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/* -- */
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#include "lua/chk.h"
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#include "lua/def.h"
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#include "misc/url.h"
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#include "misc/re.h"
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/*
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* NOTE: The error messages produced in these functions are intended for
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* developers. They would typically be seen when a new script is being
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* developed.
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*
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* The messages should be clear, indicating the actual error, minimizing
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* the time spent on locating the actual problem in the script.
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*/
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gboolean l_chk_can_parse_url(lua_State *l, _quvi_script_t qs,
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const gchar *k_can_parse_url,
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const gchar *k_domains,
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const gchar *script_func)
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{
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gboolean r = FALSE;
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lua_pushnil(l);
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while (lua_next(l, LI_KEY))
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{
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l_chk_assign_s(l, k_domains, qs->domains, TRUE, FALSE);
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l_chk_assign_b(l, k_can_parse_url, &r);
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lua_pop(l, 1);
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}
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if (qs->domains->len ==0)
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{
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luaL_error(l, "%s: %s: the returned dictionary must contain "
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"a string value `%s'",
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qs->fpath->str, script_func, k_domains);
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}
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return (r);
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}
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/*
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* Return the value of the named (`w') string. The value is trimmed
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* of any extra whitespace (e.g. leading, trailing).
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*
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* NOTE: g_free the returned value when done using it.
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*/
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gboolean l_chk_s(lua_State *l, const gchar *w, gchar **v,
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gboolean trim_flag, gboolean escape_url)
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{
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if (lua_isstring(l, LI_KEY) && lua_isstring(l, LI_VALUE))
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{
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if (g_strcmp0(lua_tostring(l, LI_KEY), w) == 0)
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{
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const gchar *s = lua_tostring(l, LI_VALUE);
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*v = (trim_flag == TRUE)
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? m_trim_ws(s)
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: g_strdup(s);
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if (escape_url == TRUE)
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{
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gchar *e = m_url_escaped_form(*v);
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g_free(*v);
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*v = e;
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}
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return (TRUE);
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}
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}
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return (FALSE);
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}
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gboolean l_chk_assign_s(lua_State *l, const gchar *k, GString *v,
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gboolean trim_flag, gboolean escape_url)
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{
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gchar *s = NULL;
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if (l_chk_s(l, k, &s, trim_flag, escape_url) == TRUE)
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{
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g_string_assign(v, s);
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g_free(s);
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return (TRUE);
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}
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return (FALSE);
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}
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gboolean l_chk_n(lua_State *l, const gchar *w, gdouble *v)
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{
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if (lua_isstring(l, LI_KEY) && lua_isnumber(l, LI_VALUE))
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{
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if (g_strcmp0(lua_tostring(l, LI_KEY), w) == 0)
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{
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*v = lua_tonumber(l, LI_VALUE);
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return (TRUE);
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}
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}
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return (FALSE);
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}
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gboolean l_chk_assign_n(lua_State *l, const gchar *k, gdouble *v)
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{
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gdouble n = 0;
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if (l_chk_n(l, k, &n) == TRUE)
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{
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*v = n;
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return (TRUE);
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}
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return (FALSE);
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}
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gboolean l_chk_b(lua_State *l, const gchar *w, gboolean *v)
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{
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if (lua_isstring(l, LI_KEY) && lua_isboolean(l, LI_VALUE))
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{
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if (g_strcmp0(lua_tostring(l, LI_KEY), w) == 0)
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{
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*v = lua_toboolean(l, LI_VALUE);
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return (TRUE);
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}
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}
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return (FALSE);
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}
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gboolean l_chk_assign_b(lua_State *l, const gchar *k, gboolean *v)
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{
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gboolean b = 0;
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if (l_chk_b(l, k, &b) == TRUE)
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{
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*v = b;
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return (TRUE);
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}
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return (FALSE);
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}
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/* vim: set ts=2 sw=2 tw=72 expandtab: */
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