Beispiel #1
0
void SG_server__pull_request_fragball(SG_context* pCtx,
									  SG_repo* pRepo,
									  SG_vhash* pvhRequest,
									  const SG_pathname* pFragballDirPathname,
									  char** ppszFragballName,
									  SG_vhash** ppvhStatus)
{
	SG_pathname* pFragballPathname = NULL;
	SG_uint32* paDagNums = NULL;
    SG_rbtree* prbDagnodes = NULL;
	SG_string* pstrFragballName = NULL;
	char* pszRevFullHid = NULL;
	SG_rbtree_iterator* pit = NULL;
	SG_uint32* repoDagnums = NULL;

	SG_NULLARGCHECK_RETURN(pRepo);
	SG_NULLARGCHECK_RETURN(pFragballDirPathname);
	SG_NULLARGCHECK_RETURN(ppvhStatus);

#if TRACE_SERVER
	SG_ERR_CHECK(  SG_vhash_debug__dump_to_console__named(pCtx, pvhRequest, "pull fragball request")  );
#endif

	SG_ERR_CHECK(  SG_fragball__create(pCtx, pFragballDirPathname, &pFragballPathname)  );

	if (!pvhRequest)
	{
		// Add leaves from every dag to the fragball.
		SG_uint32 count_dagnums;
		SG_uint32 i;
		SG_ERR_CHECK(  SG_repo__list_dags(pCtx, pRepo, &count_dagnums, &paDagNums)  );

		for (i=0; i<count_dagnums; i++)
		{
			SG_ERR_CHECK(  SG_repo__fetch_dag_leaves(pCtx, pRepo, paDagNums[i], &prbDagnodes)  );
			SG_ERR_CHECK(  SG_fragball__append__dagnodes(pCtx, pFragballPathname, pRepo, paDagNums[i], prbDagnodes)  );
			SG_RBTREE_NULLFREE(pCtx, prbDagnodes);
		}

		SG_ERR_CHECK(  SG_pathname__get_last(pCtx, pFragballPathname, &pstrFragballName)  );
		SG_ERR_CHECK(  SG_STRDUP(pCtx, SG_string__sz(pstrFragballName), ppszFragballName)  );
	}
	else
	{
		// Build the requested fragball.
		SG_bool found;

		SG_ERR_CHECK(  SG_vhash__has(pCtx, pvhRequest, SG_SYNC_STATUS_KEY__CLONE, &found)  );
		if (found)
		{
			// Full clone requested.
			SG_ERR_CHECK(  SG_repo__fetch_repo__fragball(pCtx, pRepo, pFragballDirPathname, ppszFragballName) );
		}
		else
		{
			// Not a full clone.

			SG_ERR_CHECK(  SG_vhash__has(pCtx, pvhRequest, SG_SYNC_STATUS_KEY__DAGS, &found)  );
			if (found)
			{
				// Dagnodes were requested.

				SG_uint32 generations = 0;
				SG_vhash* pvhDags;
				SG_uint32 count_requested_dagnums;
				SG_uint32 count_repo_dagnums = 0;
				SG_uint32 i;
				const char* pszDagNum = NULL;
				const SG_variant* pvRequestedNodes = NULL;
				SG_vhash* pvhRequestedNodes = NULL;
				const char* pszHidRequestedDagnode = NULL;

				// Were additional generations requested?
				SG_ERR_CHECK(  SG_vhash__has(pCtx, pvhRequest, SG_SYNC_STATUS_KEY__GENERATIONS, &found)  );
				if (found)
					SG_ERR_CHECK(  SG_vhash__get__uint32(pCtx, pvhRequest, SG_SYNC_STATUS_KEY__GENERATIONS, &generations)  );

				SG_ERR_CHECK(  SG_vhash__get__vhash(pCtx, pvhRequest, SG_SYNC_STATUS_KEY__DAGS, &pvhDags)  );
				SG_ERR_CHECK(  SG_vhash__count(pCtx, pvhDags, &count_requested_dagnums)  );
				if (count_requested_dagnums)
					SG_ERR_CHECK(  SG_repo__list_dags(pCtx, pRepo, &count_repo_dagnums, &repoDagnums)  );

				// For each requested dag, get the requested nodes.
				for (i=0; i<count_requested_dagnums; i++)
				{
					SG_uint32 iMissingNodeCount;
					SG_uint32 iDagnum;
					SG_uint32 j;
					SG_bool isValidDagnum = SG_FALSE;
					SG_bool bSpecificNodesRequested = SG_FALSE;

					// Get the dag's missing node vhash.
					SG_ERR_CHECK(  SG_vhash__get_nth_pair(pCtx, pvhDags, i, &pszDagNum, &pvRequestedNodes)  );
					SG_ERR_CHECK(  SG_dagnum__from_sz__decimal(pCtx, pszDagNum, &iDagnum)  );

					// Verify that requested dagnum exists
					for (j = 0; j < count_repo_dagnums; j++)
					{
						if (repoDagnums[j] == iDagnum)
						{
							isValidDagnum = SG_TRUE;
							break;
						}
					}
					if (!isValidDagnum)
					{
						char buf[SG_DAGNUM__BUF_MAX__NAME];
						SG_ERR_CHECK(  SG_dagnum__to_name(pCtx, iDagnum, buf, sizeof(buf))  );
						SG_ERR_THROW2(SG_ERR_NO_SUCH_DAG, (pCtx, "%s", buf));
					}

					if (pvRequestedNodes)
					{
						SG_ERR_CHECK(  SG_variant__get__vhash(pCtx, pvRequestedNodes, &pvhRequestedNodes)  );

						// Get each node listed for the dag
						SG_ERR_CHECK(  SG_vhash__count(pCtx, pvhRequestedNodes, &iMissingNodeCount)  );
						if (iMissingNodeCount > 0)
						{
							SG_uint32 j;
							const SG_variant* pvVal;

							bSpecificNodesRequested = SG_TRUE;

							SG_ERR_CHECK(  SG_RBTREE__ALLOC__PARAMS(pCtx, &prbDagnodes, iMissingNodeCount, NULL)  );
							for (j=0; j<iMissingNodeCount; j++)
							{
								SG_ERR_CHECK(  SG_vhash__get_nth_pair(pCtx, pvhRequestedNodes, j, &pszHidRequestedDagnode, &pvVal)  );

								if (pvVal)
								{
									const char* pszVal;
									SG_ERR_CHECK(  SG_variant__get__sz(pCtx, pvVal, &pszVal)  );
									if (pszVal)
									{
										if (0 == strcmp(pszVal, SG_SYNC_REQUEST_VALUE_HID_PREFIX))
										{
											SG_ERR_CHECK(  SG_repo__hidlookup__dagnode(pCtx, pRepo, iDagnum, pszHidRequestedDagnode, &pszRevFullHid)  );
											pszHidRequestedDagnode = pszRevFullHid;
										}
										else if (0 == strcmp(pszVal, SG_SYNC_REQUEST_VALUE_TAG))
										{
											SG_ERR_CHECK(  SG_vc_tags__lookup__tag(pCtx, pRepo, pszHidRequestedDagnode, &pszRevFullHid)  );
											if (!pszRevFullHid)
												SG_ERR_THROW(SG_ERR_TAG_NOT_FOUND);
											pszHidRequestedDagnode = pszRevFullHid;
										}
										else
											SG_ERR_THROW(SG_ERR_PULL_INVALID_FRAGBALL_REQUEST);
									}
								}
								
								SG_ERR_CHECK(  SG_rbtree__update(pCtx, prbDagnodes, pszHidRequestedDagnode)  );
								// Get additional dagnode generations, if requested.
								SG_ERR_CHECK(  SG_sync__add_n_generations(pCtx, pRepo, pszHidRequestedDagnode, prbDagnodes, generations)  );
								SG_NULLFREE(pCtx, pszRevFullHid);
							}
						}
					}

					if (!bSpecificNodesRequested)
					{
						// When no specific nodes are in the request, add all leaves.
						SG_ERR_CHECK(  SG_repo__fetch_dag_leaves(pCtx, pRepo, iDagnum, &prbDagnodes)  );

						// Get additional dagnode generations, if requested.
						if (generations)
						{
							SG_bool found;
							const char* hid;
							
							SG_ERR_CHECK(  SG_rbtree__iterator__first(pCtx, &pit, prbDagnodes, &found, &hid, NULL)  );
							while (found)
							{
								SG_ERR_CHECK(  SG_sync__add_n_generations(pCtx, pRepo, hid, prbDagnodes, generations)  );
								SG_ERR_CHECK(  SG_rbtree__iterator__next(pCtx, pit, &found, &hid, NULL)  );
							}
						}
					}

					if (prbDagnodes) // can be null when leaves of an empty dag are requested
					{
						SG_ERR_CHECK(  SG_fragball__append__dagnodes(pCtx, pFragballPathname, pRepo, iDagnum, prbDagnodes)  );
						SG_RBTREE_NULLFREE(pCtx, prbDagnodes);
					}

				} // dagnum loop
			} // if "dags" exists

			/* Add requested blobs to the fragball */
			SG_ERR_CHECK(  SG_vhash__has(pCtx, pvhRequest, SG_SYNC_STATUS_KEY__BLOBS, &found)  );
			if (found)
			{
				// Blobs were requested.
				SG_vhash* pvhBlobs;
				SG_ERR_CHECK(  SG_vhash__get__vhash(pCtx, pvhRequest, SG_SYNC_STATUS_KEY__BLOBS, &pvhBlobs)  );
				SG_ERR_CHECK(  SG_sync__add_blobs_to_fragball(pCtx, pRepo, pFragballPathname, pvhBlobs)  );
			}

			SG_ERR_CHECK(  SG_pathname__get_last(pCtx, pFragballPathname, &pstrFragballName)  );
			SG_ERR_CHECK(  SG_STRDUP(pCtx, SG_string__sz(pstrFragballName), ppszFragballName)  );
		}
	}
	
	/* fallthru */
fail:
	// If we had an error, delete the half-baked fragball.
	if (pFragballPathname && SG_context__has_err(pCtx))
		SG_ERR_IGNORE(  SG_fsobj__remove__pathname(pCtx, pFragballPathname)  );

	SG_PATHNAME_NULLFREE(pCtx, pFragballPathname);
	SG_NULLFREE(pCtx, paDagNums);
	SG_RBTREE_NULLFREE(pCtx, prbDagnodes);
	SG_STRING_NULLFREE(pCtx, pstrFragballName);
	SG_NULLFREE(pCtx, pszRevFullHid);
	SG_RBTREE_ITERATOR_NULLFREE(pCtx, pit);
	SG_NULLFREE(pCtx, repoDagnums);
}
void sg_sync_client__http__get_repo_info(
    SG_context* pCtx,
    SG_sync_client* pSyncClient,
    SG_bool bIncludeBranchInfo,
    SG_bool b_include_areas,
    SG_vhash** ppvh)
{
    char* pszUrl = NULL;
    SG_vhash* pvh = NULL;
    SG_uint32 iProtocolVersion = 0;
    SG_string* pstr = NULL;
    const char* psz_qs = NULL;

    SG_NULLARGCHECK_RETURN(pSyncClient);

    if (bIncludeBranchInfo && b_include_areas)
    {
        psz_qs = "details&areas";
    }
    else if (bIncludeBranchInfo && !b_include_areas)
    {
        psz_qs = "details";
    }
    else if (!bIncludeBranchInfo && b_include_areas)
    {
        psz_qs = "areas";
    }
    else
    {
        psz_qs = NULL;
    }

    SG_ERR_CHECK(  _get_sync_url(pCtx, pSyncClient->psz_remote_repo_spec,
                                 SYNC_URL_SUFFIX JSON_URL_SUFFIX, NULL, psz_qs, &pszUrl)  );

    SG_ERR_CHECK(  do_url(
                       pCtx,
                       pszUrl,
                       "GET",
                       NULL,
                       pSyncClient->psz_username,
                       pSyncClient->psz_password,
                       &pstr,
                       NULL,
                       SG_TRUE
                   )  );

    SG_ERR_CHECK(  SG_vhash__alloc__from_json__sz(pCtx, &pvh, SG_string__sz(pstr))  );
    if(SG_context__err_equals(pCtx, SG_ERR_JSON_WRONG_TOP_TYPE) || SG_context__err_equals(pCtx, SG_ERR_JSONPARSER_SYNTAX))
    {
        SG_ERR_RESET_THROW2(SG_ERR_NOTAREPOSITORY, (pCtx, "%s", pSyncClient->psz_remote_repo_spec));
    }
    else
    {
        SG_ERR_CHECK_CURRENT;
    }

    SG_ERR_CHECK(  SG_vhash__get__uint32(pCtx, pvh, SG_SYNC_REPO_INFO_KEY__PROTOCOL_VERSION, &iProtocolVersion)  );
    if (iProtocolVersion != 1)
    {
        SG_ERR_THROW2(SG_ERR_UNKNOWN_SYNC_PROTOCOL_VERSION, (pCtx, "%u", iProtocolVersion));
    }

    *ppvh = pvh;
    pvh = NULL;

    /* fall through */

fail:
    SG_NULLFREE(pCtx, pszUrl);
    SG_VHASH_NULLFREE(pCtx, pvh);
    SG_STRING_NULLFREE(pCtx, pstr);
}