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/*-
* Copyright 2021 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include "html.hxx"
#include "libserver/task.h"
#include <vector>
#include <fmt/core.h>
#define DOCTEST_CONFIG_IMPLEMENTATION_IN_DLL
#include "doctest/doctest.h"
namespace rspamd::html {
/*
* Tests part
*/
TEST_SUITE("html")
{
TEST_CASE("html parsing")
{
const std::vector<std::pair<std::string, std::string>> cases{
{"<html><!DOCTYPE html><body>", "+html;++xml;++body;"},
{"<html><div><div></div></div></html>", "+html;++div;+++div;"},
{"<html><div><div></div></html>", "+html;++div;+++div;"},
{"<html><div><div></div></html></div>", "+html;++div;+++div;"},
{"<p><p><a></p></a></a>", "+p;++p;+++a;"},
{"<div><a href=\"http://example.com\"></div></a>", "+div;++a;"},
/* Broken, as I don't know how the hell this should be really parsed */
//{"<html><!DOCTYPE html><body><head><body></body></html></body></html>",
// "+html;++xml;++body;+++head;+++body;"}
};
rspamd_url_init(NULL);
auto *pool = rspamd_mempool_new(rspamd_mempool_suggest_size(),
"html", 0);
struct rspamd_task fake_task;
memset(&fake_task, 0, sizeof(fake_task));
fake_task.task_pool = pool;
for (const auto &c: cases) {
SUBCASE((std::string("extract tags from: ") + c.first).c_str())
{
GByteArray *tmp = g_byte_array_sized_new(c.first.size());
g_byte_array_append(tmp, (const guint8 *) c.first.data(), c.first.size());
auto *hc = html_process_input(&fake_task, tmp, nullptr, nullptr, nullptr, true, nullptr);
CHECK(hc != nullptr);
auto dump = html_debug_structure(*hc);
CHECK(c.second == dump);
g_byte_array_free(tmp, TRUE);
}
}
rspamd_mempool_delete(pool);
}
TEST_CASE("html text extraction")
{
using namespace std::string_literals;
const std::vector<std::pair<std::string, std::string>> cases{
{"test", "test"},
{"test\0"s, "test\uFFFD"s},
{"test\0test"s, "test\uFFFDtest"s},
{"test\0\0test"s, "test\uFFFD\uFFFDtest"s},
{"test ", "test"},
{"test foo, bar", "test foo, bar"},
{"<p>text</p>", "text\n"},
{"olo<p>text</p>lolo", "olo\ntext\nlolo"},
{"<div>foo</div><div>bar</div>", "foo\nbar\n"},
{"<b>foo<i>bar</b>baz</i>", "foobarbaz"},
{"<b>foo<i>bar</i>baz</b>", "foobarbaz"},
{"foo<br>baz", "foo\nbaz"},
{"<a href=https://example.com>test</a>", "test"},
{"<img alt=test>", "test"},
{" <body>\n"
" <!-- escape content -->\n"
" a b a > b a < b a & b 'a "a"\n"
" </body>",
R"|(a b a > b a < b a & b 'a "a")|"},
/* XML tags */
{"<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>\n"
" <!DOCTYPE html\n"
" PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"\n"
" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
"<body>test</body>",
"test"},
{"<html><head><meta http-equiv=\"content-type\" content=\"text/html; charset=UTF-8\"></head>"
" <body>\n"
" <p><br>\n"
" </p>\n"
" <div class=\"moz-forward-container\"><br>\n"
" <br>\n"
" test</div>"
"</body>",
"\n\n\ntest\n"},
{"<div>fi<span style=\"FONT-SIZE: 0px\">le </span>"
"sh<span style=\"FONT-SIZE: 0px\">aring </span></div>",
"fish\n"},
/* FIXME: broken until rework of css parser */
//{"<div>fi<span style=\"FONT-SIZE: 0px\">le </span>"
// "sh<span style=\"FONT-SIZE: 0px\">aring </div>foo</span>", "fish\nfoo"},
/* Complex html with bad tags */
{"<!DOCTYPE html>\n"
"<html lang=\"en\">\n"
" <head>\n"
" <meta charset=\"utf-8\">\n"
" <title>title</title>\n"
" <link rel=\"stylesheet\" href=\"style.css\">\n"
" <script src=\"script.js\"></script>\n"
" </head>\n"
" <body>\n"
" <!-- page content -->\n"
" Hello, world! <b>test</b>\n"
" <p>data<>\n"
" </P>\n"
" <b>stuff</p>?\n"
" </body>\n"
"</html>",
"Hello, world! test \ndata<>\nstuff\n?"},
{"<p><!--comment-->test</br></hr><br>", "test\n"},
/* Tables */
{"<table>\n"
" <tr>\n"
" <th>heada</th>\n"
" <th>headb</th>\n"
" </tr>\n"
" <tr>\n"
" <td>data1</td>\n"
" <td>data2</td>\n"
" </tr>\n"
" </table>",
"heada headb\ndata1 data2\n"},
/* Invalid closing br and hr + comment */
{" <body>\n"
" <!-- page content -->\n"
" Hello, world!<br>test</br><br>content</hr>more content<br>\n"
" <div>\n"
" content inside div\n"
" </div>\n"
" </body>",
"Hello, world!\ntest\ncontentmore content\ncontent inside div\n"},
/* First closing tag */
{"</head>\n"
"<body>\n"
"<p> Hello. I have some bad news.\n"
"<br /> <br /> <br /> <strong> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> </strong><span> <br /> </span>test</p>\n"
"</body>\n"
"</html>",
"Hello. I have some bad news. \n\n\n\n\n\n\n\n\n\n\n\ntest\n"},
/* Invalid tags */
{"lol <sht> omg </sht> oh my!\n"
"<name>words words</name> goodbye",
"lol omg oh my! words words goodbye"},
/* Invisible stuff */
{"<div style=\"color:#555555;font-family:Arial, 'Helvetica Neue', Helvetica, sans-serif;line-height:1.2;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px;font-style: italic;\">\n"
"<p style=\"font-size: 11px; line-height: 1.2; color: #555555; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; mso-line-height-alt: 14px; margin: 0;\">\n"
"<span style=\"color:#FFFFFF; \">F</span>Sincerely,</p>\n"
"<p style=\"font-size: 11px; line-height: 1.2; color: #555555; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; mso-line-height-alt: 14px; margin: 0;\">\n"
"<span style=\"color:#FFFFFF; \">8</span>Sky<span style=\"opacity:1;\"></span>pe<span style=\"color:#FFFFFF; \">F</span>Web<span style=\"color:#FFFFFF; \">F</span></p>\n"
"<span style=\"color:#FFFFFF; \">kreyes</span>\n"
"<p style=\"font-size: 11px; line-height: 1.2; color: #555555; font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif; mso-line-height-alt: 14px; margin: 0;\">\n"
" </p>",
" Sincerely,\n Skype Web\n"},
{"lala<p hidden>fafa</p>", "lala"},
{"<table style=\"FONT-SIZE: 0px;\"><tbody><tr><td>\n"
"DONKEY\n"
"</td></tr></tbody></table>",
""},
/* bgcolor propagation */
{"<a style=\"display: inline-block; color: #ffffff; background-color: #00aff0;\">\n"
"<span style=\"color: #00aff0;\">F</span>Rev<span style=\"opacity: 1;\"></span></span>ie<span style=\"opacity: 1;\"></span>"
"</span>w<span style=\"color: #00aff0;\">F<span style=\"opacity: 1;\">̹</span></span>",
" Review"},
{"<td style=\"color:#ffffff\" bgcolor=\"#005595\">\n"
"hello world\n"
"</td>",
"hello world"},
/* Colors */
{"goodbye <span style=\"COLOR: rgb(64,64,64)\">cruel</span>"
"<span>world</span>",
"goodbye cruelworld"},
/* Font-size propagation */
{"<p style=\"font-size: 11pt;line-height:22px\">goodbye <span style=\"font-size:0px\">cruel</span>world</p>",
"goodbye world\n"},
/* Newline before tag -> must be space */
{"goodbye <span style=\"COLOR: rgb(64,64,64)\">cruel</span>\n"
"<span>world</span>",
"goodbye cruel world"},
/* Head tag with some stuff */
{"<html><head><p>oh my god</head><body></body></html>", "oh my god\n"},
{"<html><head><title>oh my god</head><body></body></html>", ""},
{"<html><body><html><head>displayed</body></html></body></html>", "displayed"},
};
rspamd_url_init(NULL);
auto *pool = rspamd_mempool_new(rspamd_mempool_suggest_size(),
"html", 0);
struct rspamd_task fake_task;
memset(&fake_task, 0, sizeof(fake_task));
fake_task.task_pool = pool;
auto replace_newlines = [](std::string &str) {
auto start_pos = 0;
while ((start_pos = str.find("\n", start_pos, 1)) != std::string::npos) {
str.replace(start_pos, 1, "\\n", 2);
start_pos += 2;
}
};
auto i = 1;
for (const auto &c: cases) {
SUBCASE((fmt::format("html extraction case {}", i)).c_str())
{
GByteArray *tmp = g_byte_array_sized_new(c.first.size());
g_byte_array_append(tmp, (const guint8 *) c.first.data(), c.first.size());
auto *hc = html_process_input(&fake_task, tmp, nullptr, nullptr, nullptr, true, nullptr);
CHECK(hc != nullptr);
replace_newlines(hc->parsed);
auto expected = c.second;
replace_newlines(expected);
CHECK(hc->parsed == expected);
g_byte_array_free(tmp, TRUE);
}
i++;
}
rspamd_mempool_delete(pool);
}
TEST_CASE("html urls extraction")
{
using namespace std::string_literals;
const std::vector<std::tuple<std::string, std::vector<std::string>, std::optional<std::string>>> cases{
{"<style></style><a href=\"https://www.example.com\">yolo</a>",
{"https://www.example.com"},
"yolo"},
{"<a href=\"https://example.com\">test</a>", {"https://example.com"}, "test"},
{"<a <poo href=\"http://example.com\">hello</a>", {"http://example.com"}, "hello"},
{"<html>\n"
"<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=utf-8\">\n"
"<body>\n"
"<a href=\"https://www.example.com\">hello</a>\n"
"</body>\n"
"</html>",
{"https://www.example.com"},
"hello"},
};
rspamd_url_init(NULL);
auto *pool = rspamd_mempool_new(rspamd_mempool_suggest_size(),
"html", 0);
struct rspamd_task fake_task;
memset(&fake_task, 0, sizeof(fake_task));
fake_task.task_pool = pool;
auto i = 1;
for (const auto &c: cases) {
SUBCASE((fmt::format("html url extraction case {}", i)).c_str())
{
GPtrArray *purls = g_ptr_array_new();
auto input = std::get<0>(c);
GByteArray *tmp = g_byte_array_sized_new(input.size());
g_byte_array_append(tmp, (const guint8 *) input.data(), input.size());
auto *hc = html_process_input(&fake_task, tmp, nullptr, nullptr, purls, true, nullptr);
CHECK(hc != nullptr);
auto &expected_text = std::get<2>(c);
if (expected_text.has_value()) {
CHECK(hc->parsed == expected_text.value());
}
const auto &expected_urls = std::get<1>(c);
CHECK(expected_urls.size() == purls->len);
for (auto j = 0; j < expected_urls.size(); ++j) {
auto *url = (rspamd_url *) g_ptr_array_index(purls, j);
CHECK(expected_urls[j] == std::string{url->string, url->urllen});
}
g_byte_array_free(tmp, TRUE);
g_ptr_array_free(purls, TRUE);
}
++i;
}
rspamd_mempool_delete(pool);
}
}
} /* namespace rspamd::html */
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