emsApplication/3rdPartner/libhv/http/server/http_page.cpp

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2024-05-24 12:19:45 +08:00
#include "http_page.h"
#include "hdir.h"
#include "hurl.h"
#define AUTOINDEX_FILENAME_MAXLEN 50
void make_http_status_page(http_status status_code, std::string& page) {
char szCode[8];
snprintf(szCode, sizeof(szCode), "%d ", status_code);
const char* status_message = http_status_str(status_code);
page += R"(<!DOCTYPE html>
<html>
<head>
<title>)";
page += szCode; page += status_message;
page += R"(</title>
</head>
<body>
<center><h1>)";
page += szCode; page += status_message;
page += R"(</h1></center>
<hr>
</body>
</html>)";
}
void make_index_of_page(const char* dir, std::string& page, const char* url) {
char c_str[1024] = {0};
snprintf(c_str, sizeof(c_str), R"(<!DOCTYPE html>
<html>
<head>
<title>Index of %s</title>
</head>
<body>
<h1>Index of %s</h1>
<hr>
)", url, url);
page += c_str;
page += " <table border=\"0\">\n";
page += R"( <tr>
<th align="left" width="30%">Name</th>
<th align="left" width="20%">Date</th>
<th align="left" width="20%">Size</th>
</tr>
)";
#define _ADD_TD_(page, td) \
page += " <td>"; \
page += td; \
page += "</td>\n"; \
std::list<hdir_t> dirs;
listdir(dir, dirs);
std::string escaped_name;
for (auto& item : dirs) {
if (item.name[0] == '.' && item.name[1] == '\0') continue;
page += " <tr>\n";
// fix CVE-2023-26146
escaped_name = hv::escapeHTML(item.name);
const char* filename = escaped_name.c_str();
size_t len = escaped_name.size() + (item.type == 'd');
// name
snprintf(c_str, sizeof(c_str), "<a href=\"%s%s\">%s%s</a>",
filename,
item.type == 'd' ? "/" : "",
len < AUTOINDEX_FILENAME_MAXLEN ? filename : std::string(filename, filename+AUTOINDEX_FILENAME_MAXLEN-4).append("...").c_str(),
item.type == 'd' ? "/" : "");
_ADD_TD_(page, c_str)
if (strcmp(filename, "..") != 0) {
// mtime
struct tm* tm = localtime(&item.mtime);
snprintf(c_str, sizeof(c_str), "%04d-%02d-%02d %02d:%02d:%02d",
tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
_ADD_TD_(page, c_str)
// size
if (item.type == 'd') {
page += '-';
}
else {
float hsize;
if (item.size < 1024) {
snprintf(c_str, sizeof(c_str), "%lu", (unsigned long)item.size);
}
else if ((hsize = item.size/1024.0f) < 1024.0f) {
snprintf(c_str, sizeof(c_str), "%.1fK", hsize);
}
else if ((hsize /= 1024.0f) < 1024.0f) {
snprintf(c_str, sizeof(c_str), "%.1fM", hsize);
}
else {
hsize /= 1024.0f;
snprintf(c_str, sizeof(c_str), "%.1fG", hsize);
}
_ADD_TD_(page, c_str)
}
}
page += " </tr>\n";
}
#undef _ADD_TD_
page += R"( </table>
<hr>
</body>
</html>
)";
}