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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include <string.h>
#include <limits.h>
#include <iostream>
#include <map>
#include "include/types.h"
#include "rgw_cors_s3.h"
#include "rgw_user.h"
#define dout_context g_ceph_context
#define dout_subsys ceph_subsys_rgw
void RGWCORSRule_S3::to_xml(XMLFormatter& f) {
f.open_object_section("CORSRule");
/*ID if present*/
if (id.length() > 0) {
f.dump_string("ID", id);
}
/*AllowedMethods*/
if (allowed_methods & RGW_CORS_GET)
f.dump_string("AllowedMethod", "GET");
if (allowed_methods & RGW_CORS_PUT)
f.dump_string("AllowedMethod", "PUT");
if (allowed_methods & RGW_CORS_DELETE)
f.dump_string("AllowedMethod", "DELETE");
if (allowed_methods & RGW_CORS_HEAD)
f.dump_string("AllowedMethod", "HEAD");
if (allowed_methods & RGW_CORS_POST)
f.dump_string("AllowedMethod", "POST");
if (allowed_methods & RGW_CORS_COPY)
f.dump_string("AllowedMethod", "COPY");
/*AllowedOrigins*/
for(set<string>::iterator it = allowed_origins.begin();
it != allowed_origins.end();
++it) {
string host = *it;
f.dump_string("AllowedOrigin", host);
}
/*AllowedHeader*/
for(set<string>::iterator it = allowed_hdrs.begin();
it != allowed_hdrs.end(); ++it) {
f.dump_string("AllowedHeader", *it);
}
/*MaxAgeSeconds*/
if (max_age != CORS_MAX_AGE_INVALID) {
f.dump_unsigned("MaxAgeSeconds", max_age);
}
/*ExposeHeader*/
for(list<string>::iterator it = exposable_hdrs.begin();
it != exposable_hdrs.end(); ++it) {
f.dump_string("ExposeHeader", *it);
}
f.close_section();
}
bool RGWCORSRule_S3::xml_end(const char *el) {
XMLObjIter iter = find("AllowedMethod");
XMLObj *obj;
/*Check all the allowedmethods*/
obj = iter.get_next();
if (obj) {
for( ; obj; obj = iter.get_next()) {
const char *s = obj->get_data().c_str();
dout(10) << "RGWCORSRule::xml_end, el : " << el << ", data : " << s << dendl;
if (strcasecmp(s, "GET") == 0) {
allowed_methods |= RGW_CORS_GET;
} else if (strcasecmp(s, "POST") == 0) {
allowed_methods |= RGW_CORS_POST;
} else if (strcasecmp(s, "DELETE") == 0) {
allowed_methods |= RGW_CORS_DELETE;
} else if (strcasecmp(s, "HEAD") == 0) {
allowed_methods |= RGW_CORS_HEAD;
} else if (strcasecmp(s, "PUT") == 0) {
allowed_methods |= RGW_CORS_PUT;
} else if (strcasecmp(s, "COPY") == 0) {
allowed_methods |= RGW_CORS_COPY;
} else {
return false;
}
}
}
/*Check the id's len, it should be less than 255*/
XMLObj *xml_id = find_first("ID");
if (xml_id != NULL) {
string data = xml_id->get_data();
if (data.length() > 255) {
dout(0) << "RGWCORSRule has id of length greater than 255" << dendl;
return false;
}
dout(10) << "RGWCORRule id : " << data << dendl;
id = data;
}
/*Check if there is atleast one AllowedOrigin*/
iter = find("AllowedOrigin");
if (!(obj = iter.get_next())) {
dout(0) << "RGWCORSRule does not have even one AllowedOrigin" << dendl;
return false;
}
for( ; obj; obj = iter.get_next()) {
dout(10) << "RGWCORSRule - origin : " << obj->get_data() << dendl;
/*Just take the hostname*/
string host = obj->get_data();
if (validate_name_string(host) != 0)
return false;
allowed_origins.insert(allowed_origins.end(), host);
}
/*Check of max_age*/
iter = find("MaxAgeSeconds");
if ((obj = iter.get_next())) {
char *end = NULL;
unsigned long long ull = strtoull(obj->get_data().c_str(), &end, 10);
if (*end != '\0') {
dout(0) << "RGWCORSRule's MaxAgeSeconds " << obj->get_data() << " is an invalid integer" << dendl;
return false;
}
if (ull >= 0x100000000ull) {
max_age = CORS_MAX_AGE_INVALID;
} else {
max_age = (uint32_t)ull;
}
dout(10) << "RGWCORSRule : max_age : " << max_age << dendl;
}
/*Check and update ExposeHeader*/
iter = find("ExposeHeader");
if ((obj = iter.get_next())) {
for(; obj; obj = iter.get_next()) {
dout(10) << "RGWCORSRule - exp_hdr : " << obj->get_data() << dendl;
exposable_hdrs.push_back(obj->get_data());
}
}
/*Check and update AllowedHeader*/
iter = find("AllowedHeader");
if ((obj = iter.get_next())) {
for(; obj; obj = iter.get_next()) {
dout(10) << "RGWCORSRule - allowed_hdr : " << obj->get_data() << dendl;
string s = obj->get_data();
if (validate_name_string(s) != 0)
return false;
allowed_hdrs.insert(allowed_hdrs.end(), s);
}
}
return true;
}
void RGWCORSConfiguration_S3::to_xml(ostream& out) {
XMLFormatter f;
f.open_object_section_in_ns("CORSConfiguration", XMLNS_AWS_S3);
for(list<RGWCORSRule>::iterator it = rules.begin();
it != rules.end(); ++it) {
(static_cast<RGWCORSRule_S3 &>(*it)).to_xml(f);
}
f.close_section();
f.flush(out);
}
bool RGWCORSConfiguration_S3::xml_end(const char *el) {
XMLObjIter iter = find("CORSRule");
RGWCORSRule_S3 *obj;
if (!(obj = static_cast<RGWCORSRule_S3 *>(iter.get_next()))) {
dout(0) << "CORSConfiguration should have atleast one CORSRule" << dendl;
return false;
}
for(; obj; obj = static_cast<RGWCORSRule_S3 *>(iter.get_next())) {
rules.push_back(*obj);
}
return true;
}
class CORSRuleID_S3 : public XMLObj {
public:
CORSRuleID_S3() {}
~CORSRuleID_S3() override {}
};
class CORSRuleAllowedOrigin_S3 : public XMLObj {
public:
CORSRuleAllowedOrigin_S3() {}
~CORSRuleAllowedOrigin_S3() override {}
};
class CORSRuleAllowedMethod_S3 : public XMLObj {
public:
CORSRuleAllowedMethod_S3() {}
~CORSRuleAllowedMethod_S3() override {}
};
class CORSRuleAllowedHeader_S3 : public XMLObj {
public:
CORSRuleAllowedHeader_S3() {}
~CORSRuleAllowedHeader_S3() override {}
};
class CORSRuleMaxAgeSeconds_S3 : public XMLObj {
public:
CORSRuleMaxAgeSeconds_S3() {}
~CORSRuleMaxAgeSeconds_S3() override {}
};
class CORSRuleExposeHeader_S3 : public XMLObj {
public:
CORSRuleExposeHeader_S3() {}
~CORSRuleExposeHeader_S3() override {}
};
XMLObj *RGWCORSXMLParser_S3::alloc_obj(const char *el) {
if (strcmp(el, "CORSConfiguration") == 0) {
return new RGWCORSConfiguration_S3;
} else if (strcmp(el, "CORSRule") == 0) {
return new RGWCORSRule_S3;
} else if (strcmp(el, "ID") == 0) {
return new CORSRuleID_S3;
} else if (strcmp(el, "AllowedOrigin") == 0) {
return new CORSRuleAllowedOrigin_S3;
} else if (strcmp(el, "AllowedMethod") == 0) {
return new CORSRuleAllowedMethod_S3;
} else if (strcmp(el, "AllowedHeader") == 0) {
return new CORSRuleAllowedHeader_S3;
} else if (strcmp(el, "MaxAgeSeconds") == 0) {
return new CORSRuleMaxAgeSeconds_S3;
} else if (strcmp(el, "ExposeHeader") == 0) {
return new CORSRuleExposeHeader_S3;
}
return NULL;
}
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