forked from vitalif/vitastor
Rework HTTP client to use keepalive, move getifaddr_list to addr_util
parent
c3304bce27
commit
5473d5b4a2
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@ -84,7 +84,8 @@ const etcd_tree = {
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osd_ping_timeout: 5, // seconds. min: 1
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up_wait_retry_interval: 500, // ms. min: 50
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// osd
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etcd_report_interval: 5,
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etcd_report_interval: 5, // seconds
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etcd_keepalive_interval: 10, // seconds, default is etcd_report_interval*2
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run_primary: true,
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osd_network: null, // "192.168.7.0/24" or an array of masks
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bind_address: "0.0.0.0",
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@ -1,4 +1,7 @@
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <sys/types.h>
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#include <ifaddrs.h>
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#include <string.h>
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#include <stdio.h>
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@ -58,3 +61,128 @@ std::string addr_to_string(const sockaddr &addr)
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throw std::runtime_error(std::string("inet_ntop: ") + strerror(errno));
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return std::string(peer_str)+":"+std::to_string(port);
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}
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static bool cidr_match(const in_addr &addr, const in_addr &net, uint8_t bits)
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{
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if (bits == 0)
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{
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// C99 6.5.7 (3): u32 << 32 is undefined behaviour
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return true;
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}
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return !((addr.s_addr ^ net.s_addr) & htonl(0xFFFFFFFFu << (32 - bits)));
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}
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static bool cidr6_match(const in6_addr &address, const in6_addr &network, uint8_t bits)
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{
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const uint32_t *a = address.s6_addr32;
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const uint32_t *n = network.s6_addr32;
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int bits_whole, bits_incomplete;
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bits_whole = bits >> 5; // number of whole u32
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bits_incomplete = bits & 0x1F; // number of bits in incomplete u32
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if (bits_whole && memcmp(a, n, bits_whole << 2))
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return false;
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if (bits_incomplete)
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{
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uint32_t mask = htonl((0xFFFFFFFFu) << (32 - bits_incomplete));
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if ((a[bits_whole] ^ n[bits_whole]) & mask)
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return false;
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}
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return true;
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}
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struct addr_mask_t
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{
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sa_family_t family;
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in_addr ipv4;
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in6_addr ipv6;
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uint8_t bits;
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};
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std::vector<std::string> getifaddr_list(std::vector<std::string> mask_cfg, bool include_v6)
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{
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std::vector<addr_mask_t> masks;
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for (auto mask: mask_cfg)
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{
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unsigned bits = 0;
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int p = mask.find('/');
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if (p != std::string::npos)
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{
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char null_byte = 0;
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if (sscanf(mask.c_str()+p+1, "%u%c", &bits, &null_byte) != 1 || bits > 128)
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{
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throw std::runtime_error((include_v6 ? "Invalid IPv4 address mask: " : "Invalid IP address mask: ") + mask);
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}
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mask = mask.substr(0, p);
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}
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in_addr ipv4;
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in6_addr ipv6;
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if (inet_pton(AF_INET, mask.c_str(), &ipv4) == 1)
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{
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if (bits > 32)
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{
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throw std::runtime_error((include_v6 ? "Invalid IPv4 address mask: " : "Invalid IP address mask: ") + mask);
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}
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masks.push_back((addr_mask_t){ .family = AF_INET, .ipv4 = ipv4, .bits = (uint8_t)bits });
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}
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else if (include_v6 && inet_pton(AF_INET6, mask.c_str(), &ipv6) == 1)
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{
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masks.push_back((addr_mask_t){ .family = AF_INET6, .ipv6 = ipv6, .bits = (uint8_t)bits });
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}
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else
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{
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throw std::runtime_error((include_v6 ? "Invalid IPv4 address mask: " : "Invalid IP address mask: ") + mask);
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}
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}
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std::vector<std::string> addresses;
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ifaddrs *list, *ifa;
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if (getifaddrs(&list) == -1)
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{
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throw std::runtime_error(std::string("getifaddrs: ") + strerror(errno));
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}
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for (ifa = list; ifa != NULL; ifa = ifa->ifa_next)
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{
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if (!ifa->ifa_addr)
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{
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continue;
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}
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int family = ifa->ifa_addr->sa_family;
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if ((family == AF_INET || family == AF_INET6 && include_v6) &&
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(ifa->ifa_flags & (IFF_UP | IFF_RUNNING | IFF_LOOPBACK)) == (IFF_UP | IFF_RUNNING))
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{
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void *addr_ptr;
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if (family == AF_INET)
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{
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addr_ptr = &((sockaddr_in *)ifa->ifa_addr)->sin_addr;
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}
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else
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{
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addr_ptr = &((sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
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}
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if (masks.size() > 0)
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{
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int i;
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for (i = 0; i < masks.size(); i++)
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{
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if (masks[i].family == family && (family == AF_INET
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? cidr_match(*(in_addr*)addr_ptr, masks[i].ipv4, masks[i].bits)
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: cidr6_match(*(in6_addr*)addr_ptr, masks[i].ipv6, masks[i].bits)))
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{
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break;
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}
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}
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if (i >= masks.size())
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{
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continue;
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}
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}
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char addr[INET6_ADDRSTRLEN];
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if (!inet_ntop(family, addr_ptr, addr, INET6_ADDRSTRLEN))
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{
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throw std::runtime_error(std::string("inet_ntop: ") + strerror(errno));
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}
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addresses.push_back(std::string(addr));
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}
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}
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freeifaddrs(list);
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return addresses;
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}
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@ -2,6 +2,8 @@
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#include <sys/socket.h>
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#include <string>
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#include <vector>
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bool string_to_addr(std::string str, bool parse_port, int default_port, struct sockaddr *addr);
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std::string addr_to_string(const sockaddr &addr);
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std::vector<std::string> getifaddr_list(std::vector<std::string> mask_cfg = std::vector<std::string>(), bool include_v6 = false);
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@ -5,6 +5,7 @@
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#include "pg_states.h"
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#include "etcd_state_client.h"
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#ifndef __MOCK__
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#include "addr_util.h"
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#include "http_client.h"
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#include "base64.h"
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#endif
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@ -25,9 +26,14 @@ etcd_state_client_t::~etcd_state_client_t()
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#ifndef __MOCK__
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if (etcd_watch_ws)
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{
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etcd_watch_ws->close();
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http_close(etcd_watch_ws);
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etcd_watch_ws = NULL;
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}
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if (keepalive_client)
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{
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http_close(keepalive_client);
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keepalive_client = NULL;
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}
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#endif
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}
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@ -74,14 +80,26 @@ void etcd_state_client_t::etcd_call(std::string api, json11::Json payload, int t
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"Host: "+etcd_address+"\r\n"
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"Content-Type: application/json\r\n"
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"Content-Length: "+std::to_string(req.size())+"\r\n"
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"Connection: close\r\n"
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"Connection: keep-alive\r\n"
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"Keep-Alive: timeout="+std::to_string(etcd_keepalive_interval)+"\r\n"
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"\r\n"+req;
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http_request_json(tfd, etcd_address, req, timeout, [this, cur_addr = selected_etcd_address, callback](std::string err, json11::Json data)
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auto cb = [this, cur_addr = selected_etcd_address, callback](const http_response_t *response)
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{
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if (err != "" && cur_addr == selected_etcd_address)
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selected_etcd_address = "";
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std::string err;
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json11::Json data;
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response->parse_json_response(err, data);
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if (err != "")
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{
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if (cur_addr == selected_etcd_address)
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selected_etcd_address = "";
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}
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callback(err, data);
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});
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};
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if (!keepalive_client)
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{
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keepalive_client = http_init(tfd);
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}
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http_request(keepalive_client, etcd_address, req, { .timeout = timeout, .keepalive = true }, cb);
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}
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void etcd_state_client_t::add_etcd_url(std::string addr)
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@ -155,6 +173,13 @@ void etcd_state_client_t::parse_config(const json11::Json & config)
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this->etcd_prefix = "/"+this->etcd_prefix;
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}
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this->log_level = config["log_level"].int64_value();
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this->etcd_keepalive_interval = config["etcd_keepalive_interval"].uint64_value();
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if (this->etcd_keepalive_interval <= 0)
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{
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this->etcd_keepalive_interval = config["etcd_report_interval"].uint64_value() * 2;
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if (this->etcd_keepalive_interval <= 0)
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this->etcd_keepalive_interval = 10;
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}
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}
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void etcd_state_client_t::pick_next_etcd()
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@ -200,7 +225,7 @@ void etcd_state_client_t::start_etcd_watcher()
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ws_alive = 1;
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if (etcd_watch_ws)
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{
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etcd_watch_ws->close();
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http_close(etcd_watch_ws);
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etcd_watch_ws = NULL;
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}
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etcd_watch_ws = open_websocket(tfd, etcd_address, etcd_api_path+"/watch", ETCD_SLOW_TIMEOUT,
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@ -232,7 +257,7 @@ void etcd_state_client_t::start_etcd_watcher()
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{
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fprintf(stderr, "Revisions before %lu were compacted by etcd, reloading state\n",
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data["result"]["compact_revision"].uint64_value());
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etcd_watch_ws->close();
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http_close(etcd_watch_ws);
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etcd_watch_ws = NULL;
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etcd_watch_revision = 0;
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on_reload_hook();
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@ -286,6 +311,7 @@ void etcd_state_client_t::start_etcd_watcher()
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{
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selected_etcd_address = "";
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}
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http_close(etcd_watch_ws);
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etcd_watch_ws = NULL;
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if (etcd_watches_initialised == 0)
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{
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@ -302,7 +328,7 @@ void etcd_state_client_t::start_etcd_watcher()
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}
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}
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});
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etcd_watch_ws->post_message(WS_TEXT, json11::Json(json11::Json::object {
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http_post_message(etcd_watch_ws, WS_TEXT, json11::Json(json11::Json::object {
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{ "create_request", json11::Json::object {
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{ "key", base64_encode(etcd_prefix+"/config/") },
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{ "range_end", base64_encode(etcd_prefix+"/config0") },
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@ -311,7 +337,7 @@ void etcd_state_client_t::start_etcd_watcher()
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{ "progress_notify", true },
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} }
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}).dump());
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etcd_watch_ws->post_message(WS_TEXT, json11::Json(json11::Json::object {
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http_post_message(etcd_watch_ws, WS_TEXT, json11::Json(json11::Json::object {
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{ "create_request", json11::Json::object {
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{ "key", base64_encode(etcd_prefix+"/osd/state/") },
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{ "range_end", base64_encode(etcd_prefix+"/osd/state0") },
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@ -320,7 +346,7 @@ void etcd_state_client_t::start_etcd_watcher()
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{ "progress_notify", true },
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} }
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}).dump());
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etcd_watch_ws->post_message(WS_TEXT, json11::Json(json11::Json::object {
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http_post_message(etcd_watch_ws, WS_TEXT, json11::Json(json11::Json::object {
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{ "create_request", json11::Json::object {
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{ "key", base64_encode(etcd_prefix+"/pg/state/") },
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{ "range_end", base64_encode(etcd_prefix+"/pg/state0") },
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@ -329,7 +355,7 @@ void etcd_state_client_t::start_etcd_watcher()
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{ "progress_notify", true },
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} }
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}).dump());
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etcd_watch_ws->post_message(WS_TEXT, json11::Json(json11::Json::object {
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http_post_message(etcd_watch_ws, WS_TEXT, json11::Json(json11::Json::object {
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{ "create_request", json11::Json::object {
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{ "key", base64_encode(etcd_prefix+"/pg/history/") },
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{ "range_end", base64_encode(etcd_prefix+"/pg/history0") },
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@ -348,14 +374,14 @@ void etcd_state_client_t::start_etcd_watcher()
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}
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else if (!ws_alive)
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{
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etcd_watch_ws->close();
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http_close(etcd_watch_ws);
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etcd_watch_ws = NULL;
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start_etcd_watcher();
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}
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else
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{
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ws_alive = 0;
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etcd_watch_ws->post_message(WS_TEXT, json11::Json(json11::Json::object {
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http_post_message(etcd_watch_ws, WS_TEXT, json11::Json(json11::Json::object {
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{ "progress_request", json11::Json::object { } }
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}).dump());
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}
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@ -71,7 +71,7 @@ struct inode_watch_t
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inode_config_t cfg;
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};
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struct websocket_t;
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struct http_co_t;
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struct etcd_state_client_t
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{
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@ -82,10 +82,11 @@ protected:
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std::string selected_etcd_address;
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std::vector<std::string> addresses_to_try;
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std::vector<inode_watch_t*> watches;
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websocket_t *etcd_watch_ws = NULL;
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http_co_t *etcd_watch_ws = NULL, *keepalive_client = NULL;
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int ws_keepalive_timer = -1;
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int ws_alive = 0;
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uint64_t bs_block_size = DEFAULT_BLOCK_SIZE;
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int etcd_keepalive_interval = 10;
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void add_etcd_url(std::string);
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void pick_next_etcd();
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public:
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@ -4,9 +4,7 @@
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#include <netinet/tcp.h>
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#include <sys/epoll.h>
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#include <net/if.h>
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#include <arpa/inet.h>
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#include <ifaddrs.h>
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#include <ctype.h>
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#include <unistd.h>
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@ -25,11 +23,12 @@
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static std::string trim(const std::string & in);
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static std::string ws_format_frame(int type, uint64_t size);
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static bool ws_parse_frame(std::string & buf, int & type, std::string & res);
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static void parse_http_headers(std::string & res, http_response_t *parsed);
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// FIXME: Use keepalive
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struct http_co_t
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{
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timerfd_manager_t *tfd;
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std::function<void(const http_response_t*)> response_callback;
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int request_timeout = 0;
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std::string host;
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@ -37,11 +36,12 @@ struct http_co_t
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std::string ws_outbox;
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std::string response;
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bool want_streaming;
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bool keepalive;
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http_response_t parsed;
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uint64_t target_response_size = 0;
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std::vector<std::function<void()>> keepalive_queue;
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int state = 0;
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std::string connected_host;
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int peer_fd = -1;
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int timeout_id = -1;
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int epoll_events = 0;
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@ -49,10 +49,8 @@ struct http_co_t
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std::vector<char> rbuf;
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iovec read_iov, send_iov;
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msghdr read_msg = { 0 }, send_msg = { 0 };
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std::function<void(const http_response_t*)> callback;
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websocket_t ws;
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http_response_t parsed;
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uint64_t target_response_size = 0;
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int onstack = 0;
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bool ended = false;
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@ -62,65 +60,39 @@ struct http_co_t
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inline void stackout() { onstack--; if (!onstack && ended) end(); }
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inline void end() { ended = true; if (!onstack) { delete this; } }
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void start_connection();
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void close_connection();
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void handle_events();
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void handle_connect_result();
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void submit_read();
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void submit_send();
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bool handle_read();
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void fill_parsed_response();
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void post_message(int type, const std::string & msg);
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void send_request(const std::string & host, const std::string & request,
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const http_options_t & options, std::function<void(const http_response_t *response)> response_callback);
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};
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#define HTTP_CO_CLOSED 0
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#define HTTP_CO_CONNECTING 1
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#define HTTP_CO_SENDING_REQUEST 2
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#define HTTP_CO_REQUEST_SENT 3
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#define HTTP_CO_HEADERS_RECEIVED 4
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#define HTTP_CO_WEBSOCKET 5
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#define HTTP_CO_CHUNKED 6
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#define HTTP_CO_KEEPALIVE 7
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#define DEFAULT_TIMEOUT 5000
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void http_request(timerfd_manager_t *tfd, const std::string & host, const std::string & request,
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const http_options_t & options, std::function<void(const http_response_t *response)> callback)
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http_co_t *http_init(timerfd_manager_t *tfd)
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{
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http_co_t *handler = new http_co_t();
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handler->request_timeout = options.timeout < 0 ? 0 : (options.timeout == 0 ? DEFAULT_TIMEOUT : options.timeout);
|
||||
handler->want_streaming = options.want_streaming;
|
||||
handler->tfd = tfd;
|
||||
handler->host = host;
|
||||
handler->request = request;
|
||||
handler->callback = callback;
|
||||
handler->ws.co = handler;
|
||||
handler->start_connection();
|
||||
handler->state = HTTP_CO_CLOSED;
|
||||
return handler;
|
||||
}
|
||||
|
||||
void http_request_json(timerfd_manager_t *tfd, const std::string & host, const std::string & request,
|
||||
int timeout, std::function<void(std::string, json11::Json r)> callback)
|
||||
{
|
||||
http_request(tfd, host, request, { .timeout = timeout }, [callback](const http_response_t* res)
|
||||
{
|
||||
if (res->error_code != 0)
|
||||
{
|
||||
callback("Error code: "+std::to_string(res->error_code)+" ("+std::string(strerror(res->error_code))+")", json11::Json());
|
||||
return;
|
||||
}
|
||||
if (res->status_code != 200)
|
||||
{
|
||||
callback("HTTP "+std::to_string(res->status_code)+" "+res->status_line+" body: "+trim(res->body), json11::Json());
|
||||
return;
|
||||
}
|
||||
std::string json_err;
|
||||
json11::Json data = json11::Json::parse(res->body, json_err);
|
||||
if (json_err != "")
|
||||
{
|
||||
callback("Bad JSON: "+json_err+" (response: "+trim(res->body)+")", json11::Json());
|
||||
return;
|
||||
}
|
||||
callback(std::string(), data);
|
||||
});
|
||||
}
|
||||
|
||||
websocket_t* open_websocket(timerfd_manager_t *tfd, const std::string & host, const std::string & path,
|
||||
int timeout, std::function<void(const http_response_t *msg)> callback)
|
||||
http_co_t* open_websocket(timerfd_manager_t *tfd, const std::string & host, const std::string & path,
|
||||
int timeout, std::function<void(const http_response_t *msg)> response_callback)
|
||||
{
|
||||
std::string request = "GET "+path+" HTTP/1.1\r\n"
|
||||
"Host: "+host+"\r\n"
|
||||
|
@ -130,40 +102,145 @@ websocket_t* open_websocket(timerfd_manager_t *tfd, const std::string & host, co
|
|||
"Sec-WebSocket-Version: 13\r\n"
|
||||
"\r\n";
|
||||
http_co_t *handler = new http_co_t();
|
||||
handler->tfd = tfd;
|
||||
handler->state = HTTP_CO_CLOSED;
|
||||
handler->host = host;
|
||||
handler->request_timeout = timeout < 0 ? -1 : (timeout == 0 ? DEFAULT_TIMEOUT : timeout);
|
||||
handler->want_streaming = false;
|
||||
handler->tfd = tfd;
|
||||
handler->host = host;
|
||||
handler->keepalive = false;
|
||||
handler->request = request;
|
||||
handler->callback = callback;
|
||||
handler->ws.co = handler;
|
||||
handler->response_callback = response_callback;
|
||||
handler->start_connection();
|
||||
return &handler->ws;
|
||||
return handler;
|
||||
}
|
||||
|
||||
void websocket_t::post_message(int type, const std::string & msg)
|
||||
void http_request(http_co_t *handler, const std::string & host, const std::string & request,
|
||||
const http_options_t & options, std::function<void(const http_response_t *response)> response_callback)
|
||||
{
|
||||
co->post_message(type, msg);
|
||||
handler->send_request(host, request, options, response_callback);
|
||||
}
|
||||
|
||||
void websocket_t::close()
|
||||
void http_co_t::send_request(const std::string & host, const std::string & request,
|
||||
const http_options_t & options, std::function<void(const http_response_t *response)> response_callback)
|
||||
{
|
||||
co->end();
|
||||
stackin();
|
||||
if (state == HTTP_CO_WEBSOCKET)
|
||||
{
|
||||
stackout();
|
||||
throw std::runtime_error("Attempt to send HTTP request into a websocket or chunked stream");
|
||||
}
|
||||
else if (state != HTTP_CO_KEEPALIVE && state != HTTP_CO_CLOSED)
|
||||
{
|
||||
keepalive_queue.push_back([this, host, request, options, response_callback]()
|
||||
{
|
||||
this->send_request(host, request, options, response_callback);
|
||||
});
|
||||
stackout();
|
||||
return;
|
||||
}
|
||||
this->request_timeout = options.timeout < 0 ? 0 : (options.timeout == 0 ? DEFAULT_TIMEOUT : options.timeout);
|
||||
this->want_streaming = options.want_streaming;
|
||||
this->keepalive = options.keepalive;
|
||||
this->host = host;
|
||||
this->request = request;
|
||||
this->response = "";
|
||||
this->sent = 0;
|
||||
this->response_callback = response_callback;
|
||||
if (state == HTTP_CO_KEEPALIVE && connected_host != host)
|
||||
{
|
||||
close_connection();
|
||||
}
|
||||
if (request_timeout > 0)
|
||||
{
|
||||
timeout_id = tfd->set_timer(request_timeout, false, [this](int timer_id)
|
||||
{
|
||||
stackin();
|
||||
close_connection();
|
||||
parsed = { .error = "HTTP request timed out" };
|
||||
this->response_callback(&parsed);
|
||||
this->response_callback = NULL;
|
||||
stackout();
|
||||
});
|
||||
}
|
||||
if (state == HTTP_CO_KEEPALIVE)
|
||||
{
|
||||
state = HTTP_CO_SENDING_REQUEST;
|
||||
submit_send();
|
||||
}
|
||||
else
|
||||
{
|
||||
start_connection();
|
||||
}
|
||||
stackout();
|
||||
}
|
||||
|
||||
void http_post_message(http_co_t *handler, int type, const std::string & msg)
|
||||
{
|
||||
handler->post_message(type, msg);
|
||||
}
|
||||
|
||||
void http_co_t::post_message(int type, const std::string & msg)
|
||||
{
|
||||
stackin();
|
||||
if (state == HTTP_CO_WEBSOCKET)
|
||||
{
|
||||
request += ws_format_frame(type, msg.size());
|
||||
request += msg;
|
||||
submit_send();
|
||||
}
|
||||
else if (state == HTTP_CO_KEEPALIVE || state == HTTP_CO_CHUNKED)
|
||||
{
|
||||
throw std::runtime_error("Attempt to send websocket message on a regular HTTP connection");
|
||||
}
|
||||
else
|
||||
{
|
||||
ws_outbox += ws_format_frame(type, msg.size());
|
||||
ws_outbox += msg;
|
||||
}
|
||||
stackout();
|
||||
}
|
||||
|
||||
void http_close(http_co_t *handler)
|
||||
{
|
||||
handler->end();
|
||||
}
|
||||
|
||||
void http_response_t::parse_json_response(std::string & error, json11::Json & r) const
|
||||
{
|
||||
if (this->error != "")
|
||||
{
|
||||
error = this->error;
|
||||
r = json11::Json();
|
||||
}
|
||||
else if (status_code != 200)
|
||||
{
|
||||
error = "HTTP "+std::to_string(status_code)+" "+status_line+" body: "+trim(body);
|
||||
r = json11::Json();
|
||||
}
|
||||
else
|
||||
{
|
||||
std::string json_err;
|
||||
json11::Json data = json11::Json::parse(body, json_err);
|
||||
if (json_err != "")
|
||||
{
|
||||
error = "Bad JSON: "+json_err+" (response: "+trim(body)+")";
|
||||
r = json11::Json();
|
||||
}
|
||||
else
|
||||
{
|
||||
error = "";
|
||||
r = data;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
http_co_t::~http_co_t()
|
||||
{
|
||||
if (timeout_id >= 0)
|
||||
{
|
||||
tfd->clear_timer(timeout_id);
|
||||
timeout_id = -1;
|
||||
}
|
||||
if (peer_fd >= 0)
|
||||
{
|
||||
tfd->set_fd_handler(peer_fd, false, NULL);
|
||||
close(peer_fd);
|
||||
peer_fd = -1;
|
||||
}
|
||||
close_connection();
|
||||
}
|
||||
|
||||
void http_co_t::fill_parsed_response()
|
||||
{
|
||||
if (parsed.headers["transfer-encoding"] == "chunked")
|
||||
{
|
||||
int prev = 0, pos = 0;
|
||||
|
@ -178,8 +255,24 @@ http_co_t::~http_co_t()
|
|||
{
|
||||
std::swap(parsed.body, response);
|
||||
}
|
||||
parsed.eof = true;
|
||||
callback(&parsed);
|
||||
}
|
||||
|
||||
void http_co_t::close_connection()
|
||||
{
|
||||
if (timeout_id >= 0)
|
||||
{
|
||||
tfd->clear_timer(timeout_id);
|
||||
timeout_id = -1;
|
||||
}
|
||||
if (peer_fd >= 0)
|
||||
{
|
||||
tfd->set_fd_handler(peer_fd, false, NULL);
|
||||
close(peer_fd);
|
||||
peer_fd = -1;
|
||||
}
|
||||
state = HTTP_CO_CLOSED;
|
||||
connected_host = "";
|
||||
response = "";
|
||||
}
|
||||
|
||||
void http_co_t::start_connection()
|
||||
|
@ -188,39 +281,31 @@ void http_co_t::start_connection()
|
|||
struct sockaddr addr;
|
||||
if (!string_to_addr(host.c_str(), 1, 80, &addr))
|
||||
{
|
||||
parsed.error_code = ENXIO;
|
||||
parsed = { .error = "Invalid address: "+host };
|
||||
response_callback(&parsed);
|
||||
response_callback = NULL;
|
||||
stackout();
|
||||
end();
|
||||
return;
|
||||
}
|
||||
peer_fd = socket(addr.sa_family, SOCK_STREAM, 0);
|
||||
if (peer_fd < 0)
|
||||
{
|
||||
parsed.error_code = errno;
|
||||
parsed = { .error = std::string("socket: ")+strerror(errno) };
|
||||
response_callback(&parsed);
|
||||
response_callback = NULL;
|
||||
stackout();
|
||||
end();
|
||||
return;
|
||||
}
|
||||
fcntl(peer_fd, F_SETFL, fcntl(peer_fd, F_GETFL, 0) | O_NONBLOCK);
|
||||
if (request_timeout > 0)
|
||||
{
|
||||
timeout_id = tfd->set_timer(request_timeout, false, [this](int timer_id)
|
||||
{
|
||||
if (response.length() == 0)
|
||||
{
|
||||
parsed.error_code = ETIME;
|
||||
}
|
||||
end();
|
||||
});
|
||||
}
|
||||
epoll_events = 0;
|
||||
// Finally call connect
|
||||
int r = ::connect(peer_fd, (sockaddr*)&addr, sizeof(addr));
|
||||
if (r < 0 && errno != EINPROGRESS)
|
||||
{
|
||||
parsed.error_code = errno;
|
||||
parsed = { .error = std::string("connect: ")+strerror(errno) };
|
||||
response_callback(&parsed);
|
||||
response_callback = NULL;
|
||||
stackout();
|
||||
end();
|
||||
return;
|
||||
}
|
||||
tfd->set_fd_handler(peer_fd, true, [this](int peer_fd, int epoll_events)
|
||||
|
@ -228,6 +313,7 @@ void http_co_t::start_connection()
|
|||
this->epoll_events |= epoll_events;
|
||||
handle_events();
|
||||
});
|
||||
connected_host = host;
|
||||
state = HTTP_CO_CONNECTING;
|
||||
stackout();
|
||||
}
|
||||
|
@ -250,7 +336,14 @@ void http_co_t::handle_events()
|
|||
}
|
||||
else if (epoll_events & (EPOLLRDHUP|EPOLLERR))
|
||||
{
|
||||
end();
|
||||
close_connection();
|
||||
if (response_callback != NULL)
|
||||
{
|
||||
parsed.eof = true;
|
||||
response_callback(&parsed);
|
||||
response_callback = NULL;
|
||||
parsed = {};
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
@ -269,9 +362,11 @@ void http_co_t::handle_connect_result()
|
|||
}
|
||||
if (result != 0)
|
||||
{
|
||||
parsed.error_code = result;
|
||||
close_connection();
|
||||
parsed = { .error = std::string("connect: ")+strerror(result) };
|
||||
response_callback(&parsed);
|
||||
response_callback = NULL;
|
||||
stackout();
|
||||
end();
|
||||
return;
|
||||
}
|
||||
int one = 1;
|
||||
|
@ -286,6 +381,49 @@ void http_co_t::handle_connect_result()
|
|||
stackout();
|
||||
}
|
||||
|
||||
void http_co_t::submit_send()
|
||||
{
|
||||
stackin();
|
||||
int res;
|
||||
again:
|
||||
if (sent < request.size())
|
||||
{
|
||||
send_iov = (iovec){ .iov_base = (void*)(request.c_str()+sent), .iov_len = request.size()-sent };
|
||||
send_msg.msg_iov = &send_iov;
|
||||
send_msg.msg_iovlen = 1;
|
||||
res = sendmsg(peer_fd, &send_msg, MSG_NOSIGNAL);
|
||||
if (res < 0)
|
||||
{
|
||||
res = -errno;
|
||||
}
|
||||
if (res == -EAGAIN)
|
||||
{
|
||||
res = 0;
|
||||
}
|
||||
else if (res < 0)
|
||||
{
|
||||
stackout();
|
||||
end();
|
||||
return;
|
||||
}
|
||||
sent += res;
|
||||
if (state == HTTP_CO_SENDING_REQUEST)
|
||||
{
|
||||
if (sent >= request.size())
|
||||
state = HTTP_CO_REQUEST_SENT;
|
||||
else
|
||||
goto again;
|
||||
}
|
||||
else if (state == HTTP_CO_WEBSOCKET)
|
||||
{
|
||||
request = request.substr(sent);
|
||||
sent = 0;
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
stackout();
|
||||
}
|
||||
|
||||
void http_co_t::submit_read()
|
||||
{
|
||||
stackin();
|
||||
|
@ -321,51 +459,6 @@ void http_co_t::submit_read()
|
|||
stackout();
|
||||
}
|
||||
|
||||
void http_co_t::submit_send()
|
||||
{
|
||||
stackin();
|
||||
int res;
|
||||
again:
|
||||
if (sent < request.size())
|
||||
{
|
||||
send_iov = (iovec){ .iov_base = (void*)(request.c_str()+sent), .iov_len = request.size()-sent };
|
||||
send_msg.msg_iov = &send_iov;
|
||||
send_msg.msg_iovlen = 1;
|
||||
res = sendmsg(peer_fd, &send_msg, MSG_NOSIGNAL);
|
||||
if (res < 0)
|
||||
{
|
||||
res = -errno;
|
||||
}
|
||||
if (res == -EAGAIN)
|
||||
{
|
||||
res = 0;
|
||||
}
|
||||
else if (res < 0)
|
||||
{
|
||||
stackout();
|
||||
end();
|
||||
return;
|
||||
}
|
||||
sent += res;
|
||||
if (state == HTTP_CO_SENDING_REQUEST)
|
||||
{
|
||||
if (sent >= request.size())
|
||||
{
|
||||
state = HTTP_CO_REQUEST_SENT;
|
||||
}
|
||||
else
|
||||
goto again;
|
||||
}
|
||||
else if (state == HTTP_CO_WEBSOCKET)
|
||||
{
|
||||
request = request.substr(sent);
|
||||
sent = 0;
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
stackout();
|
||||
}
|
||||
|
||||
bool http_co_t::handle_read()
|
||||
{
|
||||
stackin();
|
||||
|
@ -376,6 +469,7 @@ bool http_co_t::handle_read()
|
|||
{
|
||||
if (timeout_id >= 0)
|
||||
{
|
||||
// Timeout is cleared when headers are received
|
||||
tfd->clear_timer(timeout_id);
|
||||
timeout_id = -1;
|
||||
}
|
||||
|
@ -403,20 +497,27 @@ bool http_co_t::handle_read()
|
|||
if (!target_response_size)
|
||||
{
|
||||
// Sorry, unsupported response
|
||||
close_connection();
|
||||
parsed = { .error = "Response has neither Connection: close, nor Transfer-Encoding: chunked nor Content-Length headers" };
|
||||
response_callback(&parsed);
|
||||
response_callback = NULL;
|
||||
stackout();
|
||||
end();
|
||||
return false;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
keepalive = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (state == HTTP_CO_HEADERS_RECEIVED && target_response_size > 0 && response.size() >= target_response_size)
|
||||
{
|
||||
stackout();
|
||||
end();
|
||||
return false;
|
||||
fill_parsed_response();
|
||||
response_callback(&parsed);
|
||||
parsed.eof = true;
|
||||
}
|
||||
if (state == HTTP_CO_CHUNKED && response.size() > 0)
|
||||
else if (state == HTTP_CO_CHUNKED && response.size() > 0)
|
||||
{
|
||||
int prev = 0, pos = 0;
|
||||
while ((pos = response.find("\r\n", prev)) >= prev)
|
||||
|
@ -439,55 +540,49 @@ bool http_co_t::handle_read()
|
|||
{
|
||||
response = response.substr(prev);
|
||||
}
|
||||
if (parsed.eof)
|
||||
if (want_streaming)
|
||||
{
|
||||
stackout();
|
||||
end();
|
||||
return false;
|
||||
}
|
||||
if (want_streaming && parsed.body.size() > 0)
|
||||
{
|
||||
if (!ended)
|
||||
{
|
||||
// Don't deliver additional events after close()
|
||||
callback(&parsed);
|
||||
}
|
||||
// Streaming response
|
||||
response_callback(&parsed);
|
||||
parsed.body = "";
|
||||
}
|
||||
if (parsed.eof && !want_streaming)
|
||||
{
|
||||
// Normal response
|
||||
response_callback(&parsed);
|
||||
}
|
||||
}
|
||||
if (state == HTTP_CO_WEBSOCKET && response.size() > 0)
|
||||
else if (state == HTTP_CO_WEBSOCKET && response.size() > 0)
|
||||
{
|
||||
while (ws_parse_frame(response, parsed.ws_msg_type, parsed.body))
|
||||
{
|
||||
if (!ended)
|
||||
{
|
||||
// Don't deliver additional events after close()
|
||||
callback(&parsed);
|
||||
}
|
||||
response_callback(&parsed);
|
||||
parsed.body = "";
|
||||
}
|
||||
}
|
||||
if (parsed.eof)
|
||||
{
|
||||
response_callback = NULL;
|
||||
parsed = {};
|
||||
if (!keepalive)
|
||||
{
|
||||
close_connection();
|
||||
}
|
||||
else
|
||||
{
|
||||
state = HTTP_CO_KEEPALIVE;
|
||||
if (keepalive_queue.size() > 0)
|
||||
{
|
||||
auto next = keepalive_queue[0];
|
||||
keepalive_queue.erase(keepalive_queue.begin(), keepalive_queue.begin()+1);
|
||||
next();
|
||||
}
|
||||
}
|
||||
}
|
||||
stackout();
|
||||
return true;
|
||||
}
|
||||
|
||||
void http_co_t::post_message(int type, const std::string & msg)
|
||||
{
|
||||
stackin();
|
||||
if (state == HTTP_CO_WEBSOCKET)
|
||||
{
|
||||
request += ws_format_frame(type, msg.size());
|
||||
request += msg;
|
||||
submit_send();
|
||||
}
|
||||
else
|
||||
{
|
||||
ws_outbox += ws_format_frame(type, msg.size());
|
||||
ws_outbox += msg;
|
||||
}
|
||||
stackout();
|
||||
}
|
||||
|
||||
uint64_t stoull_full(const std::string & str, int base)
|
||||
{
|
||||
if (isspace(str[0]))
|
||||
|
@ -503,7 +598,7 @@ uint64_t stoull_full(const std::string & str, int base)
|
|||
return r;
|
||||
}
|
||||
|
||||
void parse_http_headers(std::string & res, http_response_t *parsed)
|
||||
static void parse_http_headers(std::string & res, http_response_t *parsed)
|
||||
{
|
||||
int pos = res.find("\r\n");
|
||||
pos = pos < 0 ? res.length() : pos+2;
|
||||
|
@ -625,136 +720,6 @@ static bool ws_parse_frame(std::string & buf, int & type, std::string & res)
|
|||
return true;
|
||||
}
|
||||
|
||||
static bool cidr_match(const in_addr &addr, const in_addr &net, uint8_t bits)
|
||||
{
|
||||
if (bits == 0)
|
||||
{
|
||||
// C99 6.5.7 (3): u32 << 32 is undefined behaviour
|
||||
return true;
|
||||
}
|
||||
return !((addr.s_addr ^ net.s_addr) & htonl(0xFFFFFFFFu << (32 - bits)));
|
||||
}
|
||||
|
||||
static bool cidr6_match(const in6_addr &address, const in6_addr &network, uint8_t bits)
|
||||
{
|
||||
const uint32_t *a = address.s6_addr32;
|
||||
const uint32_t *n = network.s6_addr32;
|
||||
int bits_whole, bits_incomplete;
|
||||
bits_whole = bits >> 5; // number of whole u32
|
||||
bits_incomplete = bits & 0x1F; // number of bits in incomplete u32
|
||||
if (bits_whole && memcmp(a, n, bits_whole << 2))
|
||||
return false;
|
||||
if (bits_incomplete)
|
||||
{
|
||||
uint32_t mask = htonl((0xFFFFFFFFu) << (32 - bits_incomplete));
|
||||
if ((a[bits_whole] ^ n[bits_whole]) & mask)
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
struct addr_mask_t
|
||||
{
|
||||
sa_family_t family;
|
||||
in_addr ipv4;
|
||||
in6_addr ipv6;
|
||||
uint8_t bits;
|
||||
};
|
||||
|
||||
std::vector<std::string> getifaddr_list(json11::Json mask_cfg, bool include_v6)
|
||||
{
|
||||
std::vector<addr_mask_t> masks;
|
||||
if (mask_cfg.is_string())
|
||||
{
|
||||
mask_cfg = json11::Json::array{ mask_cfg };
|
||||
}
|
||||
for (auto mask_json: mask_cfg.array_items())
|
||||
{
|
||||
std::string mask = mask_json.string_value();
|
||||
unsigned bits = 0;
|
||||
int p = mask.find('/');
|
||||
if (p != std::string::npos)
|
||||
{
|
||||
char null_byte = 0;
|
||||
if (sscanf(mask.c_str()+p+1, "%u%c", &bits, &null_byte) != 1 || bits > 128)
|
||||
{
|
||||
throw std::runtime_error((include_v6 ? "Invalid IPv4 address mask: " : "Invalid IP address mask: ") + mask);
|
||||
}
|
||||
mask = mask.substr(0, p);
|
||||
}
|
||||
in_addr ipv4;
|
||||
in6_addr ipv6;
|
||||
if (inet_pton(AF_INET, mask.c_str(), &ipv4) == 1)
|
||||
{
|
||||
if (bits > 32)
|
||||
{
|
||||
throw std::runtime_error((include_v6 ? "Invalid IPv4 address mask: " : "Invalid IP address mask: ") + mask);
|
||||
}
|
||||
masks.push_back((addr_mask_t){ .family = AF_INET, .ipv4 = ipv4, .bits = (uint8_t)bits });
|
||||
}
|
||||
else if (include_v6 && inet_pton(AF_INET6, mask.c_str(), &ipv6) == 1)
|
||||
{
|
||||
masks.push_back((addr_mask_t){ .family = AF_INET6, .ipv6 = ipv6, .bits = (uint8_t)bits });
|
||||
}
|
||||
else
|
||||
{
|
||||
throw std::runtime_error((include_v6 ? "Invalid IPv4 address mask: " : "Invalid IP address mask: ") + mask);
|
||||
}
|
||||
}
|
||||
std::vector<std::string> addresses;
|
||||
ifaddrs *list, *ifa;
|
||||
if (getifaddrs(&list) == -1)
|
||||
{
|
||||
throw std::runtime_error(std::string("getifaddrs: ") + strerror(errno));
|
||||
}
|
||||
for (ifa = list; ifa != NULL; ifa = ifa->ifa_next)
|
||||
{
|
||||
if (!ifa->ifa_addr)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
int family = ifa->ifa_addr->sa_family;
|
||||
if ((family == AF_INET || family == AF_INET6 && include_v6) &&
|
||||
(ifa->ifa_flags & (IFF_UP | IFF_RUNNING | IFF_LOOPBACK)) == (IFF_UP | IFF_RUNNING))
|
||||
{
|
||||
void *addr_ptr;
|
||||
if (family == AF_INET)
|
||||
{
|
||||
addr_ptr = &((sockaddr_in *)ifa->ifa_addr)->sin_addr;
|
||||
}
|
||||
else
|
||||
{
|
||||
addr_ptr = &((sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
|
||||
}
|
||||
if (masks.size() > 0)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < masks.size(); i++)
|
||||
{
|
||||
if (masks[i].family == family && (family == AF_INET
|
||||
? cidr_match(*(in_addr*)addr_ptr, masks[i].ipv4, masks[i].bits)
|
||||
: cidr6_match(*(in6_addr*)addr_ptr, masks[i].ipv6, masks[i].bits)))
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (i >= masks.size())
|
||||
{
|
||||
continue;
|
||||
}
|
||||
}
|
||||
char addr[INET6_ADDRSTRLEN];
|
||||
if (!inet_ntop(family, addr_ptr, addr, INET6_ADDRSTRLEN))
|
||||
{
|
||||
throw std::runtime_error(std::string("inet_ntop: ") + strerror(errno));
|
||||
}
|
||||
addresses.push_back(std::string(addr));
|
||||
}
|
||||
}
|
||||
freeifaddrs(list);
|
||||
return addresses;
|
||||
}
|
||||
|
||||
std::string strtolower(const std::string & in)
|
||||
{
|
||||
std::string s = in;
|
||||
|
|
|
@ -21,41 +21,34 @@ struct http_options_t
|
|||
{
|
||||
int timeout;
|
||||
bool want_streaming;
|
||||
bool keepalive;
|
||||
};
|
||||
|
||||
struct http_response_t
|
||||
{
|
||||
std::string error;
|
||||
|
||||
bool eof = false;
|
||||
int error_code = 0;
|
||||
int status_code = 0;
|
||||
std::string status_line;
|
||||
std::map<std::string, std::string> headers;
|
||||
int ws_msg_type = -1;
|
||||
std::string body;
|
||||
|
||||
void parse_json_response(std::string & error, json11::Json & r) const;
|
||||
};
|
||||
|
||||
// Opened websocket or keepalive HTTP connection
|
||||
struct http_co_t;
|
||||
|
||||
struct websocket_t
|
||||
{
|
||||
http_co_t *co;
|
||||
void post_message(int type, const std::string & msg);
|
||||
void close();
|
||||
};
|
||||
|
||||
void parse_http_headers(std::string & res, http_response_t *parsed);
|
||||
|
||||
std::vector<std::string> getifaddr_list(json11::Json mask_cfg = json11::Json(), bool include_v6 = true);
|
||||
http_co_t* http_init(timerfd_manager_t *tfd);
|
||||
http_co_t* open_websocket(timerfd_manager_t *tfd, const std::string & host, const std::string & path,
|
||||
int timeout, std::function<void(const http_response_t *msg)> on_message);
|
||||
void http_request(http_co_t *handler, const std::string & host, const std::string & request,
|
||||
const http_options_t & options, std::function<void(const http_response_t *response)> response_callback);
|
||||
void http_post_message(http_co_t *handler, int type, const std::string & msg);
|
||||
void http_close(http_co_t *co);
|
||||
|
||||
// Utils
|
||||
uint64_t stoull_full(const std::string & str, int base = 10);
|
||||
|
||||
std::string strtolower(const std::string & in);
|
||||
|
||||
void http_request(timerfd_manager_t *tfd, const std::string & host, const std::string & request,
|
||||
const http_options_t & options, std::function<void(const http_response_t *response)> callback);
|
||||
|
||||
void http_request_json(timerfd_manager_t *tfd, const std::string & host, const std::string & request,
|
||||
int timeout, std::function<void(std::string, json11::Json r)> callback);
|
||||
|
||||
websocket_t* open_websocket(timerfd_manager_t *tfd, const std::string & host, const std::string & path,
|
||||
int timeout, std::function<void(const http_response_t *msg)> callback);
|
||||
|
|
|
@ -6,6 +6,7 @@
|
|||
#include "etcd_state_client.h"
|
||||
#include "http_client.h"
|
||||
#include "osd_rmw.h"
|
||||
#include "addr_util.h"
|
||||
|
||||
// Startup sequence:
|
||||
// Start etcd watcher -> Load global OSD configuration -> Bind socket -> Acquire lease -> Report&lock OSD state
|
||||
|
|
Loading…
Reference in New Issue