X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/d7a4635391d9ff36152603ab6faa6eafa206750a..bdc00df54d97c2825ce37dd1c249f633f199a80b:/methods/https.cc?ds=sidebyside diff --git a/methods/https.cc b/methods/https.cc index 84ce2d68f..a74d2a38b 100644 --- a/methods/https.cc +++ b/methods/https.cc @@ -3,7 +3,7 @@ // $Id: http.cc,v 1.59 2004/05/08 19:42:35 mdz Exp $ /* ###################################################################### - HTTPS Acquire Method - This is the HTTPS aquire method for APT. + HTTPS Acquire Method - This is the HTTPS acquire method for APT. It uses libcurl @@ -18,51 +18,99 @@ #include #include #include +#include +#include +#include #include #include -#include #include -#include #include -#include -#include #include #include +#include +#include -#include "config.h" #include "https.h" + #include /*}}}*/ 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) { HttpsMethod *me = (HttpsMethod *)userp; + if (me->Res.Size == 0) + me->URIStart(me->Res); if(me->File->Write(buffer, size*nmemb) != true) return false; return size*nmemb; } -int -HttpsMethod::progress_callback(void *clientp, double dltotal, double dlnow, - double ultotal, double ulnow) +int +HttpsMethod::progress_callback(void *clientp, double dltotal, double /*dlnow*/, + double /*ultotal*/, double /*ulnow*/) { HttpsMethod *me = (HttpsMethod *)clientp; if(dltotal > 0 && me->Res.Size == 0) { me->Res.Size = (unsigned long long)dltotal; - me->URIStart(me->Res); } 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; + // Determine the proxy setting + AutoDetectProxy(ServerName); + // 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 @@ -121,7 +169,6 @@ 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; @@ -137,12 +184,18 @@ 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); + // options curl_easy_setopt(curl, CURLOPT_NOPROGRESS, false); curl_easy_setopt(curl, CURLOPT_FILETIME, true); + // only allow curl to handle https, not the other stuff it supports + curl_easy_setopt(curl, CURLOPT_PROTOCOLS, CURLPROTO_HTTPS); + curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTPS); // SSL parameters are set by default to the common (non mirror-specific) value // if available (or a default one) and gets overload by mirror-specific ones. @@ -261,7 +314,7 @@ bool HttpsMethod::Fetch(FetchItem *Itm) curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr); // If we ask for uncompressed files servers might respond with content- - // negotation which lets us end up with compressed files we do not support, + // negotiation which lets us end up with compressed files we do not support, // see 657029, 657560 and co, so if we have no extension on the request // ask for text only. As a sidenote: If there is nothing to negotate servers // seem to be nice and ignore it. @@ -276,11 +329,11 @@ bool HttpsMethod::Fetch(FetchItem *Itm) // if we have the file send an if-range query with a range header 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); - headers = curl_slist_append(headers, Buf); - sprintf(Buf, "If-Range: %s", TimeRFC1123(SBuf.st_mtime).c_str()); - headers = curl_slist_append(headers, Buf); + std::string Buf; + strprintf(Buf, "Range: bytes=%lli-", (long long) SBuf.st_size); + headers = curl_slist_append(headers, Buf.c_str()); + strprintf(Buf, "If-Range: %s", TimeRFC1123(SBuf.st_mtime).c_str()); + headers = curl_slist_append(headers, Buf.c_str()); } else if(Itm->LastModified > 0) { @@ -290,18 +343,13 @@ 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 @@ -309,60 +357,87 @@ bool HttpsMethod::Fetch(FetchItem *Itm) curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &curl_condition_unmet); File->Close(); + curl_slist_free_all(headers); // cleanup - if(success != 0 || (curl_responsecode != 200 && curl_responsecode != 304)) + 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 || curl_condition_unmet) - { - 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 timeval times[2]; + times[0].tv_sec = Res.LastModified; + times[1].tv_sec = Res.LastModified; + times[0].tv_usec = times[1].tv_usec = 0; + utimes(File->Name().c_str(), times); + } + 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; -}; +} int main() { @@ -371,7 +446,8 @@ int main() HttpsMethod Mth; curl_global_init(CURL_GLOBAL_SSL) ; + Mth.DropPrivsOrDie(); + return Mth.Run(); } -