fix(endpoint): Revise endpoint build targets in favor of Bazel

It's hard to build endpoint library with mixed build system.
This commit removed the http-parser and the mbedtls submodules
from GNU Make build system and changed them to build from Bazel.

The http_parser changed to use the source from entangled. Add
`@http_parser` into deps if needed.

The mbedtls's version from entangled has not been updated for a long
time. So the mbedtls source is still pull from github. But changed the
build system from GNU Make to Bazel. In order to avoid conflict with
the same library inside entangled. The mbedtls library which pulled
from github add a suffix `2_16_6`. Add `@mbedtls_2_16_6` into deps
if needed.

Close #647

.gitmodules

@@ -7,9 +7,3 @@
 [submodule "third_party/mosquitto"]
 	path = third_party/mosquitto
 	url = https://github.com/eclipse/mosquitto.git
-[submodule "third_party/http-parser"]
-	path = third_party/http-parser
-	url = https://github.com/nodejs/http-parser.git
-[submodule "third_party/mbedtls"]
-	path = third_party/mbedtls
-	url = https://github.com/ARMmbed/mbedtls.git

Makefile

@@ -2,12 +2,8 @@ DCURL_DIR := third_party/dcurl
 DCURL_LIB := $(DCURL_DIR)/build/libdcurl.so
 MOSQUITTO_DIR := third_party/mosquitto
 MOSQUITTO_LIB := $(MOSQUITTO_DIR)/lib/libmosquitto.so.1
-MBEDTLS_DIR := third_party/mbedtls
-MBEDTLS_LIB := $(MBEDTLS_PATH)/library/libmbedx509.so $(MBEDTLS_PATH)/library/libmbedtls.so $(MBEDTLS_PATH)/library/libmbedcrypto.so
-HTTPPARSER_DIR := third_party/http-parser
-HTTPPARSER_LIB := $(HTTPPARSER_DIR)/libhttp_parser.so
 PEM_DIR = pem
-DEPS += $(DCURL_LIB) $(HTTPPARSER_LIB) $(MBEDTLS_LIB)
+DEPS += $(DCURL_LIB)
 PEM := $(PEM_DIR)/cert.pem
 
 all: $(DEPS) cert
@@ -27,14 +23,6 @@ $(MOSQUITTO_LIB): $(MOSQUITTO_DIR)
 	@echo
 	$(MAKE) -C $^ WITH_DOCS=no
 
-$(HTTPPARSER_LIB): $(HTTPPARSER_DIR)
-	git submodule update --init $^
-	$(MAKE) -C $^ library
-
-$(MBEDTLS_LIB): $(MBEDTLS_DIR)
-	git submodule update --init $^
-	$(MAKE) -C $^ SHARED=1 lib
-
 cert: check_pem
 	@xxd -i $(PEM) > $(PEM_DIR)/ca_crt.inc
 	@sed -E \
@@ -52,9 +40,6 @@ endif
 clean:
 	$(MAKE) -C $(DCURL_DIR) clean
 	$(MAKE) -C $(MOSQUITTO_DIR) clean
-	$(MAKE) -C $(HTTPPARSER_DIR) clean
-	$(MAKE) -C $(MBEDTLS_DIR) clean
-
 
 distclean: clean
 	$(RM) -r $(DCURL_DIR)

WORKSPACE

@@ -25,6 +25,13 @@ git_repository(
     tag = "v0.9.0",
 )
 
+new_git_repository(
+    name = "mbedtls_2_16_6",
+    build_file = "//third_party:mbedtls.BUILD",
+    remote = "https://github.com/ARMmbed/mbedtls.git",
+    tag = "mbedtls-2.16.6",
+)
+
 load("@rules_iota//:defs.bzl", "iota_deps")
 load("@io_bazel_rules_docker//repositories:repositories.bzl", container_repositories = "repositories")
 

third_party/BUILD

@@ -18,17 +18,3 @@ cc_library(
         "mosquitto/lib/mqtt_protocol.h",
     ],
 )
-
-cc_library(
-    name = "http-parser",
-    srcs = glob(["http-parser/*.so.*"]),
-    hdrs = ["http-parser/http_parser.h"],
-    includes = ["http-parser"],
-)
-
-cc_library(
-    name = "mbedtls",
-    srcs = glob(["mbedtls/library/*.so.*"]),
-    hdrs = glob(["mbedtls/include/mbedtls/*.h"]) + glob(["mbedtls/include/psa/*.h"]),
-    includes = ["mbedtls/include"],
-)

third_party/mbedtls.BUILD

@@ -0,0 +1,8 @@
+cc_library(
+    name = "mbedtls_2_16_6",
+    srcs = glob(["library/*.c"]),
+    hdrs = glob(["include/mbedtls/*.h"]) + glob(["include/psa/*.h"]),
+    include_prefix = "mbedtls",
+    strip_include_prefix = "include/mbedtls",
+    visibility = ["//visibility:public"],
+)

utils/BUILD

@@ -50,7 +50,7 @@ cc_library(
     hdrs = ["cipher.h"],
     deps = [
         "//common:ta_errors",
-        "//third_party:mbedtls",
+        "@mbedtls_2_16_6",
     ],
 )
 

utils/connectivity/BUILD

@@ -9,7 +9,7 @@ cc_library(
     deps = [
         "//common",
         "//pem:cert",
-        "//third_party:http-parser",
-        "//third_party:mbedtls",
+        "@http_parser",
+        "@mbedtls_2_16_6",
     ],
 )