X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/e74ff795d39894268c737c4b1864869dadb74ed1..18908589a096719eb4ce76123596865093d6ff9d:/methods/https.cc diff --git a/methods/https.cc b/methods/https.cc index c1a49ba60..2a562434b 100644 --- a/methods/https.cc +++ b/methods/https.cc @@ -36,6 +36,41 @@ /*}}}*/ using namespace std; +size_t +HttpsMethod::parse_header(void *buffer, size_t size, size_t nmemb, void *userp) +{ + size_t len = size * nmemb; + HttpsMethod *me = (HttpsMethod *)userp; + std::string line((char*) buffer, len); + for (--len; len > 0; --len) + if (isspace(line[len]) == 0) + { + ++len; + break; + } + line.erase(len); + + if (line.empty() == true) + { + if (me->Server->Result != 416 && me->Server->StartPos != 0) + ; + else if (me->Server->Result == 416 && me->Server->Size == me->File->FileSize()) + { + me->Server->Result = 200; + me->Server->StartPos = me->Server->Size; + } + else + me->Server->StartPos = 0; + + me->File->Truncate(me->Server->StartPos); + me->File->Seek(me->Server->StartPos); + } + else if (me->Server->HeaderLine(line) == false) + return 0; + + return size*nmemb; +} + size_t HttpsMethod::write_data(void *buffer, size_t size, size_t nmemb, void *userp) { @@ -59,10 +94,24 @@ HttpsMethod::progress_callback(void *clientp, double dltotal, double dlnow, return 0; } +// HttpsServerState::HttpsServerState - Constructor /*{{{*/ +HttpsServerState::HttpsServerState(URI Srv,HttpsMethod *Owner) : ServerState(Srv, NULL) +{ + TimeOut = _config->FindI("Acquire::https::Timeout",TimeOut); + Reset(); +} + /*}}}*/ + void HttpsMethod::SetupProxy() /*{{{*/ { URI ServerName = Queue->Uri; + // Curl should never read proxy settings from the environment, as + // we determine which proxy to use. Do this for consistency among + // methods and prevent an environment variable overriding a + // no-proxy ("DIRECT") setting in apt.conf. + curl_easy_setopt(curl, CURLOPT_PROXY, ""); + // Determine the proxy setting - try https first, fallback to http and use env at last string UseProxy = _config->Find("Acquire::https::Proxy::" + ServerName.Host, _config->Find("Acquire::http::Proxy::" + ServerName.Host).c_str()); @@ -81,7 +130,14 @@ void HttpsMethod::SetupProxy() /*{{{*/ if (getenv("no_proxy") != 0 && CheckDomainList(ServerName.Host,getenv("no_proxy")) == true) return; } else { - const char* result = getenv("http_proxy"); + const char* result = getenv("https_proxy"); + // FIXME: Fall back to http_proxy is to remain compatible with + // existing setups and behaviour of apt.conf. This should be + // deprecated in the future (including apt.conf). Most other + // programs do not fall back to http proxy settings and neither + // should Apt. + if (result == NULL) + result = getenv("http_proxy"); UseProxy = result == NULL ? "" : result; } @@ -92,6 +148,11 @@ void HttpsMethod::SetupProxy() /*{{{*/ if (Proxy.Port != 1) curl_easy_setopt(curl, CURLOPT_PROXYPORT, Proxy.Port); curl_easy_setopt(curl, CURLOPT_PROXY, Proxy.Host.c_str()); + if (Proxy.User.empty() == false || Proxy.Password.empty() == false) + { + curl_easy_setopt(curl, CURLOPT_PROXYUSERNAME, Proxy.User.c_str()); + curl_easy_setopt(curl, CURLOPT_PROXYPASSWORD, Proxy.Password.c_str()); + } } } /*}}}*/ // HttpsMethod::Fetch - Fetch an item /*{{{*/ @@ -103,7 +164,6 @@ bool HttpsMethod::Fetch(FetchItem *Itm) struct stat SBuf; struct curl_slist *headers=NULL; char curl_errorstr[CURL_ERROR_SIZE]; - long curl_responsecode; URI Uri = Itm->Uri; string remotehost = Uri.Host; @@ -119,12 +179,13 @@ bool HttpsMethod::Fetch(FetchItem *Itm) // callbacks curl_easy_setopt(curl, CURLOPT_URL, static_cast(Uri).c_str()); + curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, parse_header); + curl_easy_setopt(curl, CURLOPT_WRITEHEADER, this); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data); curl_easy_setopt(curl, CURLOPT_WRITEDATA, this); curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback); curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, this); curl_easy_setopt(curl, CURLOPT_NOPROGRESS, false); - curl_easy_setopt(curl, CURLOPT_FAILONERROR, true); curl_easy_setopt(curl, CURLOPT_FILETIME, true); // SSL parameters are set by default to the common (non mirror-specific) value @@ -240,6 +301,7 @@ bool HttpsMethod::Fetch(FetchItem *Itm) curl_easy_setopt(curl, CURLOPT_VERBOSE, true); // error handling + curl_errorstr[0] = '\0'; curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr); // If we ask for uncompressed files servers might respond with content- @@ -259,7 +321,7 @@ bool HttpsMethod::Fetch(FetchItem *Itm) if (stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0) { char Buf[1000]; - sprintf(Buf, "Range: bytes=%li-", (long) SBuf.st_size - 1); + sprintf(Buf, "Range: bytes=%li-", (long) SBuf.st_size); headers = curl_slist_append(headers, Buf); sprintf(Buf, "If-Range: %s", TimeRFC1123(SBuf.st_mtime).c_str()); headers = curl_slist_append(headers, Buf); @@ -272,71 +334,97 @@ bool HttpsMethod::Fetch(FetchItem *Itm) // go for it - if the file exists, append on it File = new FileFd(Itm->DestFile, FileFd::WriteAny); - if (File->Size() > 0) - File->Seek(File->Size() - 1); - + Server = new HttpsServerState(Itm->Uri, this); + // keep apt updated Res.Filename = Itm->DestFile; // get it! CURLcode success = curl_easy_perform(curl); - curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &curl_responsecode); - long curl_servdate; - curl_easy_getinfo(curl, CURLINFO_FILETIME, &curl_servdate); + // If the server returns 200 OK but the If-Modified-Since condition is not + // met, CURLINFO_CONDITION_UNMET will be set to 1 + long curl_condition_unmet = 0; + curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &curl_condition_unmet); File->Close(); + curl_slist_free_all(headers); // cleanup - if(success != 0) + if (success != 0) { _error->Error("%s", curl_errorstr); - // unlink, no need keep 401/404 page content in partial/ unlink(File->Name().c_str()); - Fail(); + return false; + } + + // server says file not modified + if (Server->Result == 304 || curl_condition_unmet == 1) + { + unlink(File->Name().c_str()); + Res.IMSHit = true; + Res.LastModified = Itm->LastModified; + Res.Size = 0; + URIDone(Res); return true; } + Res.IMSHit = false; - // Timestamp - struct utimbuf UBuf; - if (curl_servdate != -1) { - UBuf.actime = curl_servdate; - UBuf.modtime = curl_servdate; - utime(File->Name().c_str(),&UBuf); + if (Server->Result != 200 && // OK + Server->Result != 206 && // Partial + Server->Result != 416) // invalid Range + { + char err[255]; + snprintf(err, sizeof(err) - 1, "HttpError%i", Server->Result); + SetFailReason(err); + _error->Error("%s", err); + // unlink, no need keep 401/404 page content in partial/ + unlink(File->Name().c_str()); + return false; } - // check the downloaded result - struct stat Buf; - if (stat(File->Name().c_str(),&Buf) == 0) + struct stat resultStat; + if (unlikely(stat(File->Name().c_str(), &resultStat) != 0)) { - Res.Filename = File->Name(); - Res.LastModified = Buf.st_mtime; - Res.IMSHit = false; - if (curl_responsecode == 304) - { - unlink(File->Name().c_str()); - Res.IMSHit = true; - Res.LastModified = Itm->LastModified; - Res.Size = 0; - URIDone(Res); - return true; - } - Res.Size = Buf.st_size; + _error->Errno("stat", "Unable to access file %s", File->Name().c_str()); + return false; } + Res.Size = resultStat.st_size; + + // invalid range-request + if (Server->Result == 416) + { + unlink(File->Name().c_str()); + Res.Size = 0; + delete File; + Redirect(Itm->Uri); + return true; + } + + // Timestamp + curl_easy_getinfo(curl, CURLINFO_FILETIME, &Res.LastModified); + if (Res.LastModified != -1) + { + struct utimbuf UBuf; + UBuf.actime = Res.LastModified; + UBuf.modtime = Res.LastModified; + utime(File->Name().c_str(),&UBuf); + } + else + Res.LastModified = resultStat.st_mtime; // take hashes Hashes Hash; FileFd Fd(Res.Filename, FileFd::ReadOnly); Hash.AddFD(Fd); Res.TakeHashes(Hash); - + // keep apt updated URIDone(Res); // cleanup Res.Size = 0; delete File; - curl_slist_free_all(headers); return true; }; @@ -351,4 +439,3 @@ int main() return Mth.Run(); } -